JP6047879B2 - Package - Google Patents

Description

  The present invention, for example, a sheet-shaped product that is easily deformed even by a fine external pressure, such as a microorganism culture sheet for microbiological examination, and is easily deteriorated by exposure, while being protected from the external pressure and exposure. More specifically, a protective member for protecting such a sheet-like product from external pressure is hermetically housed in a light-shielding film packaging bag, can be manufactured at low cost, and the contents are The present invention relates to a package that can be protected from external pressure and shielded from light.

  As a product for confirming the presence of microorganisms or measuring the number of microorganisms, a medium solution containing components necessary for the growth of microorganisms is directly applied on a plastic sheet substrate sheet such as polyester and dried. There is a microorganism culture sheet in which a culture layer is formed. This microorganism culture sheet is easily deformed even by a fine external pressure. For example, if the base sheet is curled by the external pressure, the test solution will not be properly diffused during use, causing problems in practice. Moreover, the culture tank which culture | cultivates microorganisms may contain the component which is easy to change by exposure. Therefore, when packaging a film having such properties, it is necessary to protect the film from external pressure while ensuring light shielding properties.

  In order to protect the contents from external pressure, it is also possible to use a package made of a material having appropriate rigidity, such as a hexahedral plastic case. However, such a package has problems in manufacturing cost and waste disposal suitability. Further, in order to ensure not only protection from external pressure but also light shielding properties, the materials and processing methods are further limited, and there is a problem that costs increase.

  As a solution to such a problem, for example, there is known a package (Patent Document 1) in which a paper tray for keeping the position of a stored item in a polyethylene bag having light shielding properties is arranged. It has been.

JP 2006-301402 A

  However, in the package described in Patent Document 1, since the top surface of the paper tray is open, it is possible to prevent positional displacement of the stored item due to vibration, but external pressure from the top surface direction with respect to the stored item. When it was applied, the contents could not be protected from this external pressure.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a packaging body that can protect a flexible sheet-like product from external pressure and also has a light shielding property at low cost. And

  In order to solve the above-mentioned problems, the present inventors have conducted extensive research and found that the above-mentioned problems can be solved by disposing a sleeve-shaped or box-shaped protective member in a light-shielding film packaging bag. The headline and the present invention were completed. Specifically, the present invention provides the following.

  (1) A storage object in which a plurality of flexible sheet-like products are stacked, a bottom surface disposed on the bottom surface side of the storage object, a top surface disposed on the top surface side of the storage object, and the storage Arranged in a sleeve-like or box-like protective member, which is arranged on at least a pair of side surfaces of an object, and has both side walls standing from one side of the bottom surface and / or the top surface, and A package formed by sealingly housing the protective member in which the is disposed in a film packaging bag having a light shielding property.

  (2) The protective member is a sleeve that forms the bottom surface, the top surface, and the both side walls by bending a rectangular sheet along a line parallel to the lateral direction of the sheet, One of the side walls is a side wall connecting the opposite sides of the bottom surface and the top surface, and the other side wall is from a hinge portion erected from one side of the bottom surface and / or the top surface. The package according to (1), which is an opening surface.

  (3) The package according to (2), wherein the protection member includes a protection piece portion that is erected on a part of the protection member and disposed in the vicinity of both side end portions of the side wall and the opening surface.

  (4) The package according to (3), wherein the protective piece is a substantially rectangular piece that is erected on both side ends of the side wall and the opening surface, and a corner of the tip thereof is chamfered. .

  (5) The film packaging bag is a gusset bag including a pair of left and right side surfaces and a pair of upper and lower heat seal portions orthogonal to the side surfaces, and one of the heat seal portions has a planned opening portion. The packaging body according to any one of (2) to (4), wherein the hinge portion of the protection member is exposed when the heat seal portion is opened in the planned opening portion.

  (6) The package according to (5), wherein the protection member on which the accommodation is arranged is configured to be drawable from an opening of the gusset bag.

  (7) The package according to any one of (2) to (6), wherein a finger hook portion is formed at a tip portion of the hinge portion.

  (8) The package according to any one of (1) to (7), wherein the sheet-like product is a microorganism culture sheet for microorganism testing.

  (9) The package according to (8), wherein the microorganism culture sheet has a circumferential convex frame portion formed on a substrate.

  According to the packaging body of the present invention, the contents can be protected from external pressure and shielded from light by a simple structure. Therefore, it is possible to provide a package that can prevent deformation and alteration of a flexible sheet-like product such as a microorganism culture sheet at a low cost.

It is a perspective view of the package which concerns on embodiment of this invention. It is a perspective view of the protection member concerning the embodiment of the present invention. It is an expanded view of the protection member which concerns on embodiment of this invention. It is a perspective view of the protection member concerning a 2nd embodiment of the present invention. It is an expanded view of the protection member which concerns on 2nd Embodiment of this invention. It is sectional drawing in the package AA line of FIG. It is a perspective view (A), a partial perspective plan view (B), and a sectional view (C) of a microorganism culture sheet according to an embodiment of the present invention. It is a packaging form which concerns on embodiment of this invention, and is a perspective view which shows the state which accommodated the package in the carton box. FIG. 9 is a perspective view showing a state in which the carton box of FIG. 8 is further housed in a cardboard box according to an embodiment of the present invention. It is a perspective view which shows the opening method of the film packaging bag of the package which concerns on embodiment of this invention. It is a perspective view which shows the pulling-out method of the protection member of the package which concerns on embodiment of this invention. It is a perspective view which shows the extraction method of the opening of the protection member of the package which concerns on embodiment of this invention, and a microorganism culture sheet. It is a perspective view which shows the resealing method of the film packaging bag of the package which concerns on embodiment of this invention.

  Hereinafter, embodiments of the present invention will be described in detail. However, the present invention is not limited to the following embodiments, and may be implemented with appropriate modifications within the scope of the object of the present invention. it can.

<Overall structure of package>
First, the overall structure of the package according to the present invention will be described using the package 1 as an embodiment of the present invention as an example. As shown in FIGS. 1 and 2, the package 1 includes a sleeve-shaped protective member 10, a film packaging bag 20 that is a light-shielding gusset bag, and a microorganism culture sheet that is a flexible sheet-like product. 30. As shown in FIG. 1, the protective member 10 is hermetically housed in the film packaging bag 20. And as shown in FIG. 2, the microorganism culture sheet 30 is accommodated in the state laminated | stacked on the bottom face 11 in the protection member 10. FIG.

  The protective member 10 is a sleeve-shaped member configured by four surfaces, that is, a bottom surface 11, a top surface 12, a side wall 13, and an opening surface 14. The opening surface 14 includes a hinge part 140, and the hinge part 140 includes a first hinge part 140a and a second hinge part 140b. More specifically, the opening surface 14 is a surface formed by overlapping the first hinge part 140a and the second hinge part 140b. The film packaging bag 20 is a gusset bag including a pair of left and right side surfaces 21 and a pair of upper and lower heat seal portions 22 orthogonal to the side surfaces 21, and one heat seal portion 22 is formed with a planned opening portion 221. Has been. As shown in FIG. 1, in the package 1, the protective member 10 is arranged in the film packaging bag 20 so that the opening surface 14 is on the side of the opening portion 221 of the film packaging bag 20. With such an arrangement, when the heat seal part 22 is opened in the planned opening part 221, the opening surface 14 of the protective member 10 is exposed from the opening part, so that the microorganism culture sheet 30 can be smoothly removed from the package 1. Can be put in and out.

  The protective member 10 in the present embodiment has a sleeve shape as described above. However, the protective member 10 is a box-shaped (hexahedral) protection composed of six surfaces including a pair of side surfaces in addition to the four surfaces described above. It may be a member. When the protective member 10 is box-shaped, the direction of the opening surface and the direction of the planned opening portion 221 of the film packaging bag 20 do not necessarily have to coincide with each other. If these directions do not match, the operability improvement effect at the time of loading and unloading the above-mentioned items will be partially impaired. For example, when there is already a box-shaped member that can be used as a ready-made product There is an advantage that the cost can be reduced by diverting the box-shaped member as it is to the packaging body of the present invention.

<Protective member>
Next, the protection member 10 will be described in detail. The main use purpose of the protection member 10 is to protect the microorganism culture sheet 30 from external pressure. In view of the structure of the microorganism culture sheet 30 described in detail later, it is important to prevent external pressure particularly from the bottom surface and the top surface direction. Regarding the external pressure from the side surface direction, there is no particular problem even if only the protection by the side surface 21 of the film packaging bag 20 is provided. The reason why the protective member 10 of the present embodiment is formed into a sleeve shape that is a tetrahedron having a pair of side surfaces open is that the microorganism culture sheet 30 can be sufficiently protected from external pressure even by such a structure. It is. Thus, the manufacturing cost can be reduced by simplifying the structure by minimizing the number of surfaces constituting the protective member 10.

The protective member 10 can be manufactured by a cutting process for cutting out a substantially rectangular sheet (hereinafter referred to as a rectangular sheet) shown in the developed view of FIG. 3, and a folding process for bending the cut rectangular sheet into a sleeve shape. . As long as the material of the rectangular sheet is a material that can be easily cut and bent by a conventionally known technique and has a certain strength that can be protected from external pressure after being formed into a sleeve shape, paper, synthetic resin Etc., without particular limitation. However, it is preferably made of paper from the viewpoint of manufacturing cost, productivity, environmental compatibility, and the like. In particular, card paper having a basis weight of 230 to 350 g / m ² and a thickness of 0.2 mm to 0.4 mm can be suitably used as the material of the protective member 10. A specific example of such paper is JET Ace (manufactured by Mitsubishi Paper Industries).

  The cutout process and the shape of the rectangular sheet cut out in the same process will be described. The method for cutting out a rectangular sheet from the material paper in the cutting step is not particularly limited. What is necessary is just to cut out by a conventionally well-known method. For example, a method of punching at once with a Thomson blade type punching blade can be preferably used.

  The width X (see FIG. 3) in the short direction of the rectangular sheet cut out in the cutting step may be determined as appropriate in accordance with the width of the microorganism culture sheet 30 accommodated in the package 1. A general microorganism culture sheet 30 has a rectangular shape with a width of 6 cm to 10 cm. The width X is preferably about 0.5 mm to 5 mm larger than the width along the short direction of the rectangular sheet of the microorganism culture sheet 30 disposed in the protective member 10. With such a width, the microorganism culture sheet 30 is disposed on the bottom surface 11 and damage caused by unnecessary displacement of the microorganism culture sheet 30 inside the package 1 due to vibration during transportation or the like. Deformation can be prevented.

  The length Y of the rectangular sheet in the longitudinal direction (see FIG. 3) is such that the four surfaces of the bottom surface 11, the top surface 12, the side wall 13, and the opening surface 14 of the protective member 10 after being formed into a sleeve shape have a predetermined size. What is necessary is just to set it as the length required in order to form. The length of the sides along the Y direction of the bottom surface 11 and the top surface 12 is preferably about 0.5 mm to 5 mm longer than the length of the side along the same direction of the microorganism culture sheet 30 disposed in the protective member 10. . What is necessary is just to adjust suitably the length of the side along the Y direction of the rectangular sheet of the side wall 13 and the opening surface 14 according to the number of the microorganism culture sheet | seats 30 laminated | stacked and accommodated in the inside of the protection member 10. FIG. That is, the length is preferably about 0.5 mm to 5 mm larger than the total height of the laminated microbial culture sheet 30 shown in FIG. The total preferred length of the sides along the Y direction of the four surfaces described above is the length of the rectangular sheet in the Y direction. By having such a length, the microorganism culture sheet 30 is arranged on the bottom surface 11, an unnecessary positional shift is prevented inside the package 1, and the microorganism culture sheet 30 is particularly arranged from the vertical direction. Can be adequately protected from external pressure.

  In addition, the opening surface 14 is the 1st hinge part erected from the top | upper surface 12 in the position which faces in parallel with the side wall 13 among the four surfaces of the protection member 10 in the package 1 of this embodiment. 140a and the 2nd hinge part 140b standingly arranged from the bottom face 11 are the surfaces comprised by overlapping. The opening surface 14 is a surface for holding the height h1 (see FIG. 6) of the sleeve-shaped protection member 10 together with the side wall 13 in a state before opening. In the protection member 10 of the present embodiment, the lengths of the sides along the Y direction of the first hinge part 140a and the second hinge part 140b are both h1, but the length of the hinge part 140 is not limited to this. . In the protective member according to the package of the present invention, the length of at least one of the hinge portions 140 only needs to be h1, and the other hinge portion 140 may be shorter than that. Further, the protective member may be provided with only one of the first hinge part 140a and the second hinge part 140b, and in that case, one of the provided hinge parts forms the opening surface 14 as the hinge part 140. To do.

  Although the rectangular sheet has a substantially rectangular shape, as shown in FIG. 3, the corners at both ends that become the first hinge part 140a and the second hinge part 140b may be cut out to be rounded lines. Good. By making the corners into such a shape, the design of the package can be improved. In addition, a finger hooking portion 141 serving as an opening trigger is provided at the tip of the first hinge portion 140a of the rectangular sheet. The shape of the finger hook 141 is preferably a semicircular recess, but is not limited thereto. For example, when the first hinge portion 140a is shorter than the opening surface 14, a semicircular convex portion may be provided at the tip portion of the first hinge portion 140a, which is necessary and large enough to hook the fingertip to trigger the opening. Any shape and shape may be used. By providing the finger hooking portion 141, the fingertip can be hooked on the finger hooking portion 141 when the first hinge portion 140a is opened, and the opening becomes easier. In addition, this finger hook part 141 can also be provided in the 2nd hinge part 140b. In the protection member 10 of this embodiment, as shown in FIG. 2, the opening surface 14 is formed by overlapping the first hinge portion 140a on the outside of the second hinge portion 140b. In this case, when the finger hanging portion 141 is provided on the second hinge portion, the hinge portion 140 may be overlapped so that the second hinge portion 140b is on the outside.

  Next, the detailed structure of the sleeve-shaped protective member 10 formed through the bending process and the same process will be described. In the folding step, the method for folding the rectangular sheet is not particularly limited, and may be folded by a conventionally known method. For example, it is possible to preferably use a method in which a fold line is formed by muscle push processing prior to bending and then bent by a press.

  As shown in FIG. 2, in the protective member 10 formed into a sleeve shape through a bending process, the bottom surface 11 and the top surface 12 are a pair of congruent rectangular surfaces facing in parallel via the side wall 13 and the opening surface 14. . The specific length and width required for the bottom surface 11 and the top surface 12 are as described in the above-described cutting process. The side wall 13 and the opening surface 14 are congruent rectangular surfaces facing in parallel via the bottom surface 11 and the top surface 12. The specific length and width required for the side wall 13 and the opening surface 14 are also as described above.

  In the folding step, first, a plurality of folding lines parallel to the short direction of the sheet are formed on the rectangular sheet. The folding line is a predetermined shape so that the bottom surface 11, the top surface 12, the side wall 13, and the opening surface 14 of the sleeve-shaped protective member 10 after the folding process have the necessary size, shape, and positional relationship described above. It is provided on a rectangular sheet at intervals.

  After forming the folding line, the side wall 13 and the second hinge part 140b are vertically erected from the bottom surface 11, and the first hinge part 140a is vertically erected from the top surface 12, respectively. The rectangular sheet is folded at right angles along the respective folding lines so that the protective members 10 are formed so that the two are arranged in parallel facing positions.

  In addition, after the said formation, you may temporarily fix the 1st hinge part 140a and the 2nd hinge part 140b by the hot-melt agent etc. in those overlapping parts. By doing so, it is possible to prevent the opening surface 14 from being opened during transportation and the microbial culture sheet 30 from being dissipated in the film packaging bag 20.

  The bottom surface 11 is a surface that is supposed to be a lower surface in the usage state of the packaging body 1, and the microorganism culture sheet 30 that is a container is laminated on this surface. Further, the bottom surface 11 serves to protect the contents of the package 1 from external pressure from the bottom surface side.

  The top surface 12 is a surface that is supposed to be an upper surface in the usage state of the package 1, and serves to protect the contents from external pressure from the top surface side.

  The side wall 13 is a surface that is assumed to be one side surface in the usage state of the package 1, and the protective member 10 formed between both surfaces is formed by connecting the bottom surface 11 and the top surface 12. It fulfills the function of maintaining the height h1.

  The opening surface 14 is a surface that is assumed to be one side surface in the usage state of the package 1, and is formed by overlapping the first hinge portion 140 a and the second hinge portion 140 b to form a side wall. Similarly to 13, the height h <b> 1 of the internal space of the protection member 10 is maintained. Further, the opening surface 14 serves as a loading / unloading port when the microorganism culture sheet 30 is loaded / unloaded from the protective member 10.

  Here, with reference to FIG. 4 and FIG. 5, another embodiment (hereinafter also referred to as “second embodiment”) of the package of the present invention will be described. In the second embodiment, the protective member 10 in the package 1 is a protective member 10A. As shown in FIG. 4, the protection member 10 </ b> A further includes a protection piece portion 15 disposed in the vicinity of both side end portions of the side wall 13 and the opening surface 14. About others, the same structure as the protection member 10 is provided.

  As described above, in order to protect the microorganism culture sheet 30 from external pressure, the protective member in the package 1 can be sufficiently protected as a sleeve shape in which a pair of side surfaces are opened like the protective member 10. However, when the corner portion 35 of the microorganism culture sheet 30 is continuously in contact with the inner surface of the side surface 21 of the film packaging bag 20, the side surface 21 may be finely damaged. Such damage is not preferable in appearance, and when a thin film packaging material is used as the material of the film packaging bag 20, such damage may lead to formation of fine through holes.

  Therefore, when making a protection member into a sleeve shape, as shown in FIG. 4, it is still more preferable that the protection member is a protection member 10A further provided with a protection piece portion 15. By doing in this way, irrespective of the raw material of the film packaging bag 20, the above damage of the film packaging bag 20 by the corner | angular part 35 of the microorganism culture sheet 30 can be avoided.

  The protective piece 15 is a piece that is erected on a part of the protective member 10 </ b> A in the same manner as the other components of the protective member 10. As shown in FIG. 4, the protection piece portion 15 is disposed in the vicinity of both side end portions of the side wall 13 and the opening surface 14. Moreover, the protection piece part 15 is arrange | positioned in the aspect which can cover the four corner | angular parts 35 of all the microorganism culture sheets 30 in such a position. Thus, by providing the protection piece part 15, the contact to the side surface 21 of the film packaging bag 20 of the corner | angular part 35 can be prevented, Therefore The said damage of the film packaging bag 20 can be prevented.

  For example, as shown in FIG. 5, the protection piece portion 15 can be formed at a total of four locations so as to stand from both sides of the first hinge portion 140 a and the side wall 13. However, it is not limited to this as long as the corner portion 35 can be covered as described above. For example, the first hinge portion 140a and the side wall 13 can be formed by standing near the end portion of the top surface 12 or the bottom surface 11. It may be arranged in the vicinity.

  The shape of the protective piece 15 is not particularly limited as long as the above aspect can be realized, but a substantially rectangular protective piece 15 as shown in FIGS. 4 and 5 can be exemplified as a preferable example. This is because such a shape can reliably cover all the corners 35 while being relatively easy to manufacture. The width w (shown in FIGS. 4 and 5) when the protective piece 15 is substantially rectangular can cover all the corners 35 at the four corners of all the microorganism culture sheets 30 in the protective member 10A. Any width is sufficient. In this case, the height h (shown in FIGS. 4 and 5) is preferably 5 mm or more and 20 mm or less. However, depending on the shape, size, and number of the microorganism culture sheets 30 arranged in the package 1, there is a necessary and sufficient range to prevent the corner portion 35 from contacting the side surface 21 of the film packaging bag 20. The width w and the height h are not necessarily limited to the above ranges.

  The shape of the tip corner portion 151 of the protection piece portion 15 is preferably chamfered. The tip corner 151 is thus chamfered and rounded, that is, semi-circular or semi-elliptical, so that the corner of the tip corner 151 of the protective piece 15 is continuously contacted. Damage to the film packaging bag 20 can be prevented.

  In addition, 10 A of protection members can be manufactured by forming the protection piece part 15 with the manufacturing method which passes through the cutting-out process and bending process mentioned above similarly to the protection member 10. FIG.

<Film packaging bag>
Next, the film packaging bag 20 will be described in detail. The main purpose of use of the film packaging bag 20 is to prevent exposure of the microorganism culture sheet 30. Due to the nature of the microorganism culture sheet 30 which will be described in detail later, exposure before use may cause undesirable alteration as a product. Therefore, the package 1 is required to have high light shielding properties. In order to satisfy such a requirement, in the packaging body 1 of the present invention, a necessary light shielding property is realized by using a gusset bag made of a light shielding material as the film packaging bag 20.

  In addition to the above-mentioned light shielding properties, various properties such as moisture resistance, heat resistance, and chemical resistance can be added to the film packaging bag 20. By making the film packaging bag 20 have such characteristics, not only the microorganism culture sheet 30 but also various other sheet-like products having different properties can be suitably packed.

  The film packaging bag 20 shown in FIG. 1 is manufactured by sticking both ends of a gusset tube (not shown), which is a hollow tube-shaped material having four connected surfaces, to form a heat seal portion 22. be able to. In the film packaging bag 20, the four surfaces of the gusset tube are a bottom surface, a top surface, and a pair of side surfaces 21, respectively. In addition, the both end portions pasted together become the heat seal portion 22.

  The material of the gusset tube forming the film packaging bag 20 is not particularly limited as long as it is light-shielding and is a flexible film material capable of forming a gusset bag by the above processing. The film material can be used. As such a film material, for example, as described in Patent Document 1, it is used as a general packaging material, for example, a multilayer film having a base material / light-shielding layer / sealant layer structure and capable of being heat-sealed. Can be used. Examples of the base material layer include a biaxially stretched polyester film (PET film) and a biaxially stretched polypropylene film (OPP film). Examples of the light shielding layer include a metal foil such as aluminum or a metal vapor-deposited layer. Examples of the sealant layer include polyethylene. A film and a polypropylene film can be illustrated.

  Here, especially about the sealant layer of the film packaging bag 20, when a thin film is used, the risk of damage due to the contact of the contents described above leads to formation of fine through holes on the side surface of the film packaging bag 20. In the case where the protective member is the protective member 10A in which the protective piece portion 15 is provided on the sleeve-shaped protective member as shown in FIG. 4, the sealant layer is avoided while avoiding such a risk. Since the film thickness can be made thinner than that of conventional products, the manufacturing cost can be further reduced.

  The film packaging bag 20 is a gusset bag including a pair of left and right side surfaces provided with a gusset folding portion 211 and a pair of upper and lower heat seal portions 22 orthogonal to the side surface 21. Of the pair of heat seal portions 22, one of the heat seal portions 22 is formed with a planned opening portion 221, a notch portion 222, and a reseal portion 223.

  The size of the internal space of the film packaging bag 20 may be a size that is necessary and sufficient to accommodate the protective member 10 and need not be strictly specified. However, if it is larger than necessary, the protective member 10 is unnecessarily displaced in the film packaging bag 20 during transportation, and materials are wasted. In addition, as shown in FIG. 6, regarding the difference between the height h2 in the inner rim of the film packaging bag 20 and the height h1 of the protective member 10, h2 is about 2.0 mm to 5 mm larger than h1. Is preferred. By setting the height difference within this range, the protective member 10 can be smoothly put in and out of the film packaging bag 20. If the difference in height is less than 2 mm, the protective member 10 cannot be smoothly put in and out of the film packaging bag 20. When this height difference is larger than 5 mm, the film packaging bag 20 becomes larger than necessary, and the above-described disadvantages occur.

  A gusset folding portion 211 may be formed on the side surface 21. By forming the gusset folding part 211, it is possible to easily fold the film packaging bag 20 after use, and there is an effect that it is not bulky at the time of disposal.

  The heat seal part 22 is formed by adhering both ends of a gusset tube cut to an appropriate length. As a bonding method, a suitable method can be used depending on the material of the film packaging bag 20. For example, it can be bonded by thermocompression processing, hot melt processing, or the like. The width of the heat seal portion 22 (the width in the longitudinal direction of the film packaging bag 20 in FIG. 1) is a width that is necessary and sufficient to provide the planned opening portion 221, the notch portion 222, and the reseal portion 223. It is sufficient that the width of the opening and the resealing operation described are easy to perform. Specifically, the width is preferably about 1 cm to 2 cm. In addition, in the package 1 of this embodiment, about the one heat seal part 22 which provides the opening plan part, the outer part from an opening part from the plan opening part 221 becomes the range of adhesion | attachment.

  The planned opening portion 221 is a portion that has been processed to facilitate opening of the package 1, and is provided only in one of the pair of heat seal portions 22 of the film packaging bag 20. The user of the package 1 can easily open the film packaging bag 20 along the portion without using a tool such as scissors. When the film packaging bag 20 is opened, the planned opening portion 221 serves as an opening for taking in and out the protective member 10 and the microorganism culture sheet 30. In the package 1 of the present embodiment, the opening in the planned opening portion 221 is facilitated by using a method in which a notch portion 222 that is a wedge-shaped cut is provided at one end of the planned opening portion 221. The planned opening portion 221 may be provided by other conventionally known methods as long as necessary properties such as light shielding properties of the film packaging bag 20 are not impaired. For example, the planned opening portion 221 can be provided at a predetermined position of the heat seal portion 22 by forming a half-cut cut.

  By providing the planned opening portion 221 only on one heat seal portion 22, the user of the package 1 always opens the film packaging bag 20 from the specific heat seal portion 22 side. On the other hand, as described above, the protective member 10 accommodated in the film packaging bag 20 is disposed so that the opening surface 14 is always directed to the planned opening portion 221 side. With such an arrangement, the microorganism culture sheet 30 can be taken in and out of the film packaging bag 20 very smoothly.

  The notch portion 222 is a wedge-shaped cut provided at one end of the planned opening portion 221, and is a portion that facilitates opening operation when the user of the package 1 opens the film packaging bag 20. . The notch portion 222 serves as a mark for recognizing the planned opening portion 221 and serves as a starting point of the opening. In addition, since the opening planned part in this invention intends opening from the opening surface 14 side of a protection member, it is not necessarily limited to easy opening means, such as a notch and a half cut, but is opened from the opening surface 14 side. It may be a simple display such as printing that suggests.

  The reseal portion 223 is a portion having a mechanism capable of resealing the film packaging bag 20 that has been opened once, and is provided inside the planned opening portion 221 of the heat seal portion 22 including the planned opening portion 221. . Since the microorganism culture sheet 30 does not necessarily use up all at once after opening, it is necessary to store the remaining microorganism culture sheet 30 again in a state where the light shielding property is maintained. By resealing the film packaging bag 20 that has been opened once by the resealing portion 223, it is possible to appropriately store the remaining microorganism culture sheet 30 using the package 1.

  The reseal portion 223 can be formed by providing a linear fastener serving as a locking mechanism inside the heat seal portion 22. As the locking mechanism constituting the reseal portion 223, any other conventionally known mechanism can be used as long as it can maintain a certain light-shielding property after the film packaging bag 20 is resealed.

  As mentioned above, although the Example at the time of using a gusset bag as a film packaging bag which has light-shielding property was described, the film packaging bag in this invention is not restricted to this. Other forms of bags such as bottom seal bags, side seal bags, and three-side seal bags may be used as long as they are light-shielding film packaging bags.

  Here, the material of the film packaging bag 20 must be a flexible material such as a resin material in order to have a light-shielding property and a low manufacturing cost. The film packaging bag 20 made of such a material itself cannot sufficiently protect the microorganism culture sheet 30 from external pressure. On the other hand, since the protection member 10 has a simple configuration that is the minimum necessary for protecting the microorganism culture sheet 30 from the external pressure, it can hardly exhibit the effects other than the external pressure protection. However, the package according to the present invention is that the combination of the protective member 10 and the film packaging bag 20 achieves both low-cost and light-shielding properties required for packaging of the microorganism culture sheet 30 at low cost. There are features. Furthermore, in the package according to the present invention, the film packaging bag 20 and the protective member 10 are optimally arranged after providing the planned opening portion 221 in the film packaging bag 20, so that the operability during loading and unloading of the contents is achieved. Can be made extremely high.

<Microbe culture sheet>
Next, the microorganism culture sheet 30 will be briefly described. In the course of research and testing in the biotechnology field, etc., it is necessary to appropriately culture microorganisms. It was this microorganism culture sheet that was developed as a tool for easily culturing microorganisms by providing a dried culture layer on a water-resistant substrate.

  As shown in FIGS. 7A, 7 </ b> B, and 7 </ b> C, the microorganism culture sheet 30 includes a culture layer 33 for culturing microorganisms on a square base sheet 31. A circular convex frame portion 34 made of a hydrophobic resin is formed on the outer periphery of the culture layer 33, and the culture layer 33 is formed in a concave region surrounded by the convex frame portion 34. A rectangular transparent cover sheet 32 is provided so as to cover the convex frame portion 34 and the culture layer 33.

  The base sheet 31 is not particularly limited as long as it has water resistance and heat resistance. For example, a plastic sheet such as polyester, polyethylene, polypropylene, polystyrene, polycarbonate, and polyvinyl chloride is preferably used. can do. These are all flexible film materials.

  The culture layer 33 is limited to a predetermined region on the base sheet 31 in order to reduce waste of expensive microorganism culture material and to enable quick inoculation work. The culture layer 33 has a thickness necessary and sufficient for the growth of microorganisms. The culture layer 33 may contain a component that changes in quality when exposed to ultraviolet rays or the like. In the package 1, such alteration of the microorganism culture sheet 30 can be prevented by using the film packaging bag 20 having light shielding properties.

  The convex frame portion 34 is formed in order to reliably expand the test solution for culturing microorganisms within a predetermined range without leaking. The height of the convex frame portion 34 depends on the thickness of the culture layer, but is preferably 600 to 1200 μm with the base sheet 31 as a base point. If there is no difference in height between the culture layer 33 and the test liquid, it may protrude from the convex frame 34 and leak. If the difference in height is large, a space is likely to be formed between the culture layer 33 and the transparent cover sheet 32 after inoculation of the test solution, and the culture layer may be dried during the culture. In the microorganism culture sheet 30, it is necessary to set the height of the convex frame portion 34 to a preferable height. However, due to the difference in height between the base sheet 31 and the convex frame portion 34, for example, In the stacked state as shown in FIG. 2, the microorganism culture sheet 30 has a problem that it is easily deformed even if it is a fine pressure when an external pressure is applied from above and below. The protective member 10 of the package 1 can prevent such deformation of the microorganism culture sheet 30.

  The transparent cover sheet 32 has an action of preventing contamination by falling bacteria during culture and preventing moisture evaporation of the culture layer. As the transparent cover sheet 32, for example, a polyolefin film such as polyethylene or polypropylene, or a plastic film such as polyester, polyamide, polystyrene, polycarbonate, or polyvinyl chloride can be used. The transparent cover sheet 32 may have any shape, but it is necessary to have a size larger than the culture layer 33 so that the culture layer 33 can be covered in order to prevent invasion of various bacteria.

  The package according to the present invention accommodates a packaged product in which a plurality of sheet-like products having flexibility are stacked, as a typical example of the sheet-like product accommodated in the package 1. Specifically, this microorganism culture sheet 30 is assumed. By providing the protective member 10 and the film packaging bag 20, the packaging body 1 can be suitably used for packaging the microorganism culture sheet 30 having the property of being easily altered by exposure and easily deformed by external pressure. Further, the present invention is not limited to this, and is characterized in that it can be suitably used as a package for any other sheet-like product having the same properties as the microorganism culture sheet 30.

<Packing form of the package>
Next, the packing form which is a concrete usage mode at the time of transportation of the package 1, etc. is demonstrated. 8 and 9 are perspective views showing an example of the packing form of the package 1 in the actual distribution process. As shown in FIG. 8, the packaging body 1 containing the microorganism culture sheet 30 is first packed in, for example, four bags into a carton box 40. Further, as shown in FIG. 9, the carton box 40 is packed in a cardboard box 50, for example, eight boxes at a time. Normally, in the actual distribution process, the package 1 is transported in the packing form of FIG. 9 or other packing forms equivalent to this, such as a form in which the number of packings for each carton box is changed. In any case, as described above, the packaging body 1 is kept to a minimum volume for ensuring the operability of inserting and removing the microorganism culture sheet 30, so that the size of the final packaging form is wasted. The transportation cost can be saved without increasing the size.

<How to use the package>
Next, the usage method when the user of the microorganism culture sheet 30 accommodated in the package 1 uses the package 1 will be described. The user opens the film packaging bag 20, pulls out the protective member 10, takes out the microorganism culture sheet 30, and reseals the film packaging bag 20, thereby removing the remaining microorganism culture sheet 30 in the package 1. Can be saved. Such usage will be described below with reference to FIGS. 6 and 10 to 13 as appropriate.

  As shown in FIG. 10, in order to take out the microorganism culture sheet 30 from the package 1, the user first opens the film packaging bag 20. The film packaging bag 20 can be opened along the planned opening portion 221 starting from the notch portion 222. For example, the user can easily obtain a trigger for cutting without using a tool such as scissors, for example, by pinching the left and right sides of the notch portion 222 with fingers. And the film packaging bag 20 can be opened along the opening plan part 221 with the opportunity of the cutting | disconnection as an opportunity. As a result, the planned opening 221 becomes an opening, and the protective member 10 can be pulled out from the opening.

  FIG. 11 shows a state in which a part of the protective member 10 is pulled out from the film packaging bag 20. As described above, since an appropriate difference is provided between the height h1 of the protective member 10 and the height h2 of the inner edge of the film packaging bag 20 (see FIG. 6), the user can open the opening of the film packaging bag 20. The protective member 10 can be pulled out smoothly from the portion.

  FIG. 12 shows a process of taking out one microorganism culture sheet 30 from the protective member 10 in a state where a part of the protective member 10 is pulled out from the film packaging bag 20. In the package 1, the protective member 10 is arranged so that the hinge part 140 is always exposed from the opening when the film packaging bag 20 is opened. Furthermore, the microorganism culture sheet 30 accommodated therein can be taken out by opening the hinge portion 140 of the protection member 10 without pulling out the entire protection member. When opening the hinge part 140, a finger | toe can be hooked on the finger-hanging part 141 and it can become a trigger of opening. In the state shown in FIG. 12, the microorganism culture sheet 30 once taken out can be returned to the protective member 10 again. As described above, since the microorganism culture sheet 30 can be easily taken in and out while a part of the protective member 10 is accommodated in the film packaging bag 20, the film packaging bag 20 can be inadvertently lost, The microbial culture sheet 30 can be prevented from escaping from the protective member 10 having a shape.

  FIG. 13 shows a state in which the protective member 10 containing the used microorganism culture sheet 30 is returned into the film packaging bag 20 and the film packaging bag 20 is resealed. Since the package 1 includes the reseal portion 223, the microorganism culture sheet 30 that has not been used at the time of the first opening can be re-stored while maintaining the light shielding property.

  EXAMPLES Hereinafter, although an Example demonstrates this invention further more concretely, this invention is not limited to a following example.

[Example 1]
The tetrahedron sleeve formed by folding the paper sheet shown in FIG. 3 into the shape shown in FIG. 2 is used as a protective member, and 25 microorganism culture sheets are arranged in the protective member in the form shown in FIG. Furthermore, in the embodiment shown in FIG. 1 and FIG. 6, the packaging body disposed in the film packaging bag was used as the packaging body of Example 1. Details of each component of the package were as follows.
Paper sheet: “JET Ace” (manufactured by Mitsubishi Paper Industries Co., Ltd.) is used as the material paper, the length of X in FIG. 3 is 74 mm, the length of Y is 276 mm, and the length of h1 in FIG. 6 is 28 mm. Formed.
Microorganism culture sheet: (Dai Nippon Printing Co., Ltd.)
Film packaging bag: 9mm thick aluminum gusset bag (Dai Nippon Printing Co., Ltd.)

[Example 2]
As for the protective member, Example 2 was a package that was prepared under exactly the same conditions as in Example 1 except that a protective piece was further provided as shown in FIG. The height h of the protective piece was 9 mm.

The packaging bodies of Examples 1 and 2 were packed as follows, and in the packed state, a transportation test was performed as described below. Further, each of the examples after the transportation test was subjected to a drop test as described below. And the presence or absence of generation | occurrence | production etc. of each package was confirmed.
Packaging form: 16 bags each of the packaging bodies of Examples 1 and 2, totaling 32 bags are packed in a cardboard box.
Transport test: Refrigerated (less than 10 ° C) transported over a distance of 1,200 km in a cargo truck with the packaging state described above.
Drop test: A packaging cargo drop test according to JIS Z 0202 was conducted after the above transport test.
Drop method: fall manually (falling surface: concrete)
Drop height: 60 cm (circulation conditions: level 2, total weight: less than 10 kg)
Drop order / number of times: as described in Table 1 below

  About the packaging body of Example 1, the damage | wound by the collision of the corner | angular part of a microorganism culture sheet was confirmed by the side surface of the film packaging bag in almost all the packaging bodies. However, there are no fine holes penetrating the packaging bag or deep scratches that may lead to such penetration, and the microorganism culture sheet itself is not damaged or deformed, from the viewpoint of product protection Was a scratch having a practically no problem. However, there was room for improvement with respect to the poor appearance of the film packaging bag due to frequent occurrence of fine scratches.

  As for the package of Example 2, a very small scratch or crease was confirmed in a small part of the package, but no visible scratch was observed in most of the packages.

  From the above, it can be seen that any of the packaging bodies of the present invention can protect the flexible film-like accommodation from external pressure with a simple structure. Further, by further providing a protective piece as in the second embodiment, it is possible to suppress the occurrence of fine scratches on the packaging bag due to contact with the corners of the contents, and the reliability in the protection performance and the aesthetic appearance. Further, it can be seen that a preferable package can be obtained.

DESCRIPTION OF SYMBOLS 1 Packing body 10, 10A Protection member 11 Bottom surface 12 Top surface 13 Side wall 14 Opening surface 140 Hinge part 140a 1st hinge part 140b 2nd hinge part 15 Protection piece part 151 Tip corner | angular part 20 Film packaging bag 21 Side 22 Heat seal part 221 Planned opening 30 Microorganism culture sheet 35 Corner 40 Carton box 50 Cardboard box

Claims (8)

A container in which a plurality of sheet-like products having flexibility are stacked,
A bottom surface disposed on a bottom surface side of the storage object, a top surface disposed on a top surface side of the storage object, and disposed on at least a pair of side surfaces of the storage object, and the bottom surface and / or the top surface Arranged in a protective member comprising both side walls erected from one side,
Furthermore, the protective member in which the contents are arranged is hermetically accommodated in a film packaging bag having a light shielding property,
The protective member is a sleeve rectangular sheet the bottom wants songs folded along a line parallel to the lateral direction of the sheet, said top surface and said side walls are formed,
One of the side walls is a side wall that continuously connects opposite sides of the bottom surface and the top surface,
The other of the both side walls is an opening surface composed of a hinge portion erected from one side of the bottom surface and / or the top surface,
The said hinge part is arrange | positioned in the position facing the opening scheduled part of the said film packaging bag.   The package according to claim 1, wherein the protection member includes a protection piece portion that is erected on a part of the protection member and is disposed in the vicinity of both side end portions of the side wall and the opening surface.   The package according to claim 2, wherein the protective piece is a substantially rectangular piece that is erected on both side ends of the side wall and the opening surface, and a corner portion of the tip is chamfered. The film packaging bag is a gusset bag comprising a pair of left and right side surfaces and a pair of upper and lower heat seal portions orthogonal to the side surfaces,
The package according to any one of claims 1 to 3, wherein an opening scheduled portion is formed in one of the heat seal portions.   The package according to claim 4, wherein the protective member in which the container is disposed is configured to be drawable from an opening of the gusset bag.   The package according to any one of claims 1 to 5, wherein a finger hook portion is formed at a tip portion of the hinge portion.   The package according to any one of claims 1 to 6, wherein the sheet-like product is a microorganism culture sheet for microorganism inspection. The package according to claim 7, wherein the microorganism culture sheet has a circumferential convex frame portion formed on a substrate.

Images