JP2007008563A - Water retaining container for packing cut flower, and method of producing the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a water retaining container for packing cut flowers, which is good in appearance and easy to produce, and to provide a method of producing the container. <P>SOLUTION: The water retaining container 10 for packing cut flowers is formed of a support plate 12 having a cut flower insertion hole 11 formed therein, and a water retaining bag 13 for cut flowers, which is fixed onto a rear side of the support plate 12 at a location corresponding to the cut flower insertion hole 11. At least a front surface of the water retaining bag 13 for cut flowers is formed of a thermoplastic resin. Further the support plate 12 is formed of a flat support plate main body 14, and a resin sheet 16 stuck to a front surface of the main body and having a heat-sealing margin 20 which is integrally formed with the resin sheet and overhangs inside the cut flower insertion hole 11. Then the heat-sealing margin 20 and an opening edge of the water retaining bag 13 for cut flowers are heat-sealed to each other. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a water retention container for cut flower packaging mainly used for packing cut flowers and a method for producing the same.

  Conventionally, cut flowers are bundled with a string or the like, wrapped with a water retaining sheet impregnated with water at the tip of the stem, covered with a water-impermeable container over the water retaining sheet, and stored in a cardboard box in that state. By doing in this way, the freshness of fresh flowers for a certain period, such as the period required to line up in the store during the distribution process, is maintained.

  However, in such a packed state, there has been a problem that the fresh flowers housed in the cardboard box move in the middle of transportation and the flowers and leaves hit the inner wall of the cardboard box and get damaged.

  Also, if the cardboard box is turned sideways, water will leak from the water retaining member, so the box must be kept upright during transportation and storage, and the placement of the box during transportation and storage is restricted. It was inconvenient. Moreover, the operation | work which winds a water retention sheet | seat around a stem part was also troublesome.

  Therefore, in order to solve the above-described problem, a support plate supported inside the packing box, and a cut flower retaining bag fixed to the cut flower insertion hole in communication with the back surface of the support plate and not leaking even when placed on the side. A water container for packing cut flowers has been developed.

  However, in the water holding container for flower packing as described above, the opening edge of the cut water holding bag is folded to form a glue margin, and the glue margin and the back surface of the support plate are adhered with an adhesive, so that it looks good. There was a problem that it was bad, and there was a problem that it was difficult to manufacture because it was cumbersome.

  In addition, since the cardboard box used for packing becomes bulky and obstructive after it arrives at the store, the cut flowers must be taken out of the box and the water holding container and transferred to a bucket or the like.

  In view of the above-described problems of the prior art, the present invention provides a water retaining container for cut flower packaging, which can be easily manufactured and can be easily taken out from a packaging box, and a method for manufacturing the same. For the purpose of provision.

  In order to solve the above-described conventional problems and achieve the intended object, the invention according to claim 1 is a support plate having cut flower insertion holes, and the cut flower insertion holes communicated with the back surface of the support plate. In the water container for cut flower packaging comprising the water retaining bag for cut flowers fixed to the cut flower water retaining bag, the surface of the water retaining bag for cut flowers is formed of a thermoplastic resin material, and the support plate is formed of a flat plate-like support plate main body. A resin sheet that is integrally bonded to the surface of the support plate body and that has a heat-sealing margin that protrudes to the inside of the cut flower insertion hole, and the opening edge of the water retention bag for the cut flower And is a water retention container for cut flower packaging which is heat-sealed.

  The invention according to claim 2 is characterized in that, in addition to the configuration of claim 1, the resin sheet is detachably bonded to the surface of the support plate body.

  According to a third aspect of the present invention, in addition to the configuration of the second aspect, the resin sheet is formed in a sheet shape integrally including a mouth-drawing string member at an outer edge portion.

  According to a fourth aspect of the present invention, in addition to the configuration of the first, second, or third aspect, the support plate main body integrally includes a separation assisting piece that can be separated from the outer peripheral portion.

  The invention according to claim 5 is a water retention container for cut flower packaging, comprising a support plate having cut flower insertion holes, and a water retention bag for cut flowers fixed to the back surface of the support plate in communication with the cut flower insertion holes. In the manufacturing method, a support plate is formed which includes a flat support plate body and a thermoplastic resin sheet that is bonded to the surface of the support plate body and integrally includes a heat-sealing margin that protrudes inside the cut flower insertion hole. In addition, the heat-sealing margin is stacked on the opening edge portion of the cut flower water retaining bag, and the heat sealing margin is heat-sealed to the opening edge portion to fix the support plate to the cut flower water retaining bag. It is a manufacturing method of the water retention container for water.

  In addition to the structure of claim 5, the invention described in claim 6 superimposes a thermoplastic resin sheet on the surface of the support plate body via a molten synthetic resin material, and peels off the resin sheet and the support plate body. After forming a support plate material that can be bonded together, and forming a primary hole penetrating vertically in the support plate plate material, the inner part of the cut flower insertion hole of the support plate body around the primary hole The inner plate is removed and the inner portion is removed, a heat-sealing margin is projected inside the cut flower insertion hole, and the heat-sealing margin is thermally fused to the opening edge of the water retaining bag for cut flowers. It is fixed to a water retention bag for cut flowers.

  In addition to the structure of claim 5 or 6, the invention according to claim 7 applies the molten synthetic resin material continuously extruded from the die of the laminate layer molding machine to the back side of the resin sheet. And a flat front liner is laminated and bonded to the back side of the molten synthetic resin material, and a member is formed in advance by integrally bonding the resin sheet and the front liner via a laminate layer. Thereafter, a core material having a corrugated cross section is interposed between the front side liner and the flat back side liner, and the surface side member, the core material, and the back side member are bonded to each other.

  In addition to the structure of Claim 5, 6 or 7, the invention of Claim 8 makes the cut | interruption cut | disconnection in parallel arrangement with the outer periphery of a resin sheet, and forms the string body for aperture drawing in the outer edge part of a resin sheet It is characterized by.

  The water retention container for cut flower packing according to the present invention includes a support plate having a cut flower insertion hole, and a water retention bag for cut flower packing, which is fixed to the back surface of the support plate in communication with the cut flower insertion hole. In the container, at least a surface of the water retention bag for cut flowers is formed of a thermoplastic resin material, and the support plate is bonded to a flat support plate main body and the surface of the support plate main body, and the inside of the cut flower insertion hole And a heat-sealing margin integrally formed on the back surface of the support plate by heat-sealing the heat-sealing margin and the opening edge of the water retention bag for cut flowers. The bag can be suitably fixed and looks good.

  When the resin sheet is detachably bonded to the surface of the support plate main body, the resin sheet can be peeled off from the support plate main body, and the cut flower water retaining bag can be separated from the support plate.

  The resin sheet is formed in a sheet shape integrally having an aperture string at the outer edge, so that when it is bonded to the support plate body, it forms a part of the sheet and is separated from the support plate body. When used, it can be used as a string for squeezing a mouth made of a resin sheet.

  The support plate main body has a separation auxiliary piece that can be separated from the outer peripheral portion, so that the edge of the resin sheet is exposed by separating the separation auxiliary piece from the support plate main body, and the resin sheet is easily supported by that portion. It can be peeled from the plate body.

  Further, the method of the present invention is a method for producing a water retention container for cut flower packaging, comprising: a support plate having cut flower insertion holes; and a water retention bag for cut flowers fixed in communication with the cut flower insertion holes on the back surface of the support plate. A support plate comprising a plate-like support plate main body and a thermoplastic resin sheet that is bonded to the surface of the support plate body and integrally has a heat-sealing margin that projects to the inside of the cut flower insertion hole. The heat-sealing margin is superimposed on the opening edge of the cut flower water retaining bag, and the support plate is fixed to the cut flower water retaining bag by heat-sealing the heat sealing margin to the opening edge. The water retaining bag for cut flowers can be easily fixed to the back surface of the plate, and the water retaining container for packing cut flowers can be manufactured easily and nicely.

  A thermoplastic resin sheet is superposed on the surface of the support plate body via a melted synthetic resin material to form a support plate material in which the resin sheet and the support plate body are detachably bonded to each other. After forming the primary hole penetrating vertically in the plate material, the inner part of the cut flower insertion hole of the support plate main body around the primary hole is separated from the support plate main body, the inner part is removed, and heat is applied to the inner side of the cut flower insertion hole. A cut flower insertion hole in the support plate main body is formed by extending a fusion margin and thermally fusing the heat fusion margin to an opening edge of the cut flower retention bag to fix the support plate to the cut flower retention bag. The inner portion can be easily removed, and a heat-sealing margin can be suitably formed inside the cut flower insertion hole.

  The plate material for the support plate is adhered to the back side of the resin sheet with a molten synthetic resin material continuously extruded from a die of a laminate layer molding machine, and a flat front liner is laminated on the back side of the molten synthetic resin material. And forming a member in which the resin sheet and the front side liner are bonded together in advance through a laminate layer, and thereafter, a corrugated cross section is formed between the front side liner and the flat back side liner. A laminate layer and a resin sheet can be suitably superimposed on the surface of the corrugated paper by interposing an intermediate core material and bonding the front side liner, the intermediate core material and the back side liner.

  The squeezing cord that functions as a lace by peeling off the resin sheet from the support end body by forming a slit for cutting in a parallel arrangement with the outer periphery of the resin sheet and forming a squeezing cord body on the outer edge of the resin sheet The body can be formed.

  Next, the water retention container for cut flower packaging according to the present invention will be described.

  1 and 2 show an example of a water retaining container for cut flower packing, and reference numeral 10 in the figure denotes a water retaining container for cut flower packing.

  This cut flower packing water holding container 10 includes a flat support plate 12 having a cut flower insertion hole 11 formed in the center, and a cut flower water holding bag 13 fixed to the back surface of the support plate 12 so as to communicate with the cut flower insertion hole 11. It has.

  As shown in FIG. 3, the support plate 12 includes a flat plate-like support plate body 14 and a resin sheet 16 made of a thermoplastic resin bonded to the surface of the support plate body 14 via a laminate layer 15. A cut flower insertion hole 11 is formed at the center.

  The support plate main body 14 is formed of a double-sided corrugated paper, that is, a single-layer corrugated board material in which a front side liner 17, a corrugated core material 18 and a back side liner 19 are laminated and adhered, and a cut flower insertion hole is formed in the center. 11 is formed.

  The support plate main body 14 is integrally provided with a peeling assisting piece 26 that can be separated from the perforation 26a at the outer peripheral portion (corner portion).

  The resin sheet 16 is formed in a sheet shape with a thermoplastic resin such as polypropylene, and a synthetic resin laminate layer 15 is interposed between the resin sheet 16 and the support plate body 14, and the resin sheet 16 is adhered to the support plate body 14 so as to be easily peelable. ing.

  In addition, the resin sheet 16 integrally has a heat-sealing margin 20 projecting inside the cut flower insertion hole 11, and the support plate main body 14 and the resin sheet 16 are bonded together with the cut flower insertion hole 11 positioned. The heat sealing margin 20 is exposed to the back side of the support plate 12 through the cut flower insertion hole 11.

  Further, the resin sheet 16 is formed into a sheet shape in which a cut line 27 for cutting is formed along the outer periphery, and the outer edge portion of the sheet is formed and the mouth-drawing string bodies 28 and 28 are cut off from the cut line. Yes.

  The laminate layer 15 is formed of a polyethylene resin such as LDPE (low density polyethylene) to a thickness of 5 to 35 μm, and the peel strength between the laminate layer 15 and the support plate body 14 is 10 g / 50 mm or less. Is formed.

  The water retention bag 13 for cut flowers is composed of an outer bag material 21 made of a water-impermeable synthetic resin sheet such as polyethylene terephthalate, polyethylene, or polypropylene, and a water absorbing property that is bonded to the inner side of the outer bag material 21 via a linear laminate layer 22. The inner bag material 23 is made of a non-woven fabric and has a bag shape having town portions 24 and 24 folded inward on both sides.

  Further, the cut water retaining bag 13 is formed with an opening 25 communicating with the cut flower insertion hole 11 of the support plate 12 at the center of the upper surface.

  The opening 25 has a smaller diameter than the cut flower insertion hole 11 of the support plate 12, and is formed in a circular shape having substantially the same diameter as the inner circle of the heat-sealing margin 20.

  A heat-sealing margin 20 is overlapped on the opening edge, and the heat-sealing margin 20 and the opening edge are heat-sealed to fix the water retention bag 13 for cut flowers to the back surface of the support plate 12. ing.

  As shown in FIG. 4, the water retention container 10 for cut flower packaging configured as described above is accommodated in the bottom of the packing box 29 for packing cut flowers, and the outer edge of the support plate 12 is fitted into the inner edge of the box 29. The support plate 12 is supported by the support protrusions 29a and 29a protruding inside the box, so that the support plate 12 can be stably held at the bottom of the packaging box 29.

  Further, in the water retention container 10 for cut flower packaging, a storage portion is formed around the opening 25 in the water retention bag, and if the storage portion is placed on the lower side, water does not leak even if it is placed sideways.

  Further, in the case where the cut flower packing water retention container 10 is transported or stored sideways, the water is collected in the storage part and the water stem is not in direct contact with the flower stem. The water in the reservoir is supplied to the flower stem through the water-holding material constituting the water, that is, by the capillary phenomenon of the water-holding material.

  Furthermore, the inner bag material 23 is bonded to the inner side of the outer bag material 21 via the linear laminate layer 22 so that the inner bag material 23 is sandwiched between the outer bag material 21 and the inner bag material 23 by the linear laminate. A gap is formed, and the water accumulated in the reservoir through the gap is sucked up so that it can easily reach the entire inner bag material 23.

  Further, in this water retaining container 10 for packing cut flowers, the peeling assisting piece 26 is cut off from the support plate main body 14, the corners of the resin sheet 16 are exposed, and the resin sheet 16 is peeled off from the surface of the support plate main body 14 by grasping that portion. By doing so, the support plate (main body) and the cut flower water retaining bag 13 can be separated.

  Further, by peeling off the resin sheet 16 from the support plate main body 14, the mouthpiece string bodies 28, 28 constituting the outer edge portion of the resin sheet 16 can be used as strings.

  As shown in FIG. 5, the separated water retention bag 13 for cut flowers has a heat-sealed resin sheet 16 supported at the opening edge portion, and the cut flower stems into which the resin sheet 16 has been inserted are supported. The opening can be squeezed by constricting around and tying the outside with squeezing string bodies 28, 28.

  By doing so, cut flowers taken out from the cardboard box for transportation can be placed in the store without using a bucket or the like, and in general, when cut flowers are shipped from agricultural cooperatives, Since the virus agent is added, the water to which the antiviral agent is added can be used as it is at the store by continuing to use the water retention container during transportation.

  Next, the manufacturing method of this water retention container 10 for cut flower packing is demonstrated.

  This cut flower packing water retention container 10 is formed with a support plate 12 and a cut flower water retention bag 13 separately, so that the cut flower insertion hole 11 and the opening 25 are in communication with the back surface of the support plate 12. It is manufactured by fixing the water retaining bag 13 for cut flowers.

  The support plate 12 is manufactured by laminating the resin sheet 16 and the front side liner 17, and then laminating the corrugated core material 18 and the back side liner 19 on the back side of the bonded member, and making them a predetermined size. The support plate plate 30 is cut into pieces, the support plate plate 30 is processed, and the cut flower insertion hole 11 and the heat-sealing margin 20 projecting inside thereof are formed.

  In order to bond the resin sheet 16 and the front side liner 17, an apparatus as shown in FIG. 6 is used. In the figure, 31 is a front side liner feed roll in which the front side liner 17 is wound and supported, and 32 is a resin sheet. 16 is a resin sheet feed roll which is wound and supported in a roll shape, 33 is a receiving roll 33 which is also used as a cooling, 34 is a pressure roll 34 and 35 which are close to the receiving roll 33, and a receiving roll 33 which is made of a molten synthetic resin in a belt shape. A T-die 36 to be supplied on the surface is a laminate layer forming machine.

  In this apparatus, the front side liner 17 is pulled out from the front side liner feed roll 31, is caused to follow the upper side to the lower side of the receiving roll 33 by the guide rolls 37 and 38, and is taken up by the take-up roll 39. The resin sheet 16 is pulled out from the resin sheet feed roll 32 and attached to the outer periphery of the pressure roll 34, and is superposed on the surface of the front side liner 17 attached to the surface of the receiving roll 33 by the pressure roll 34, together with the front side liner 17. The winding roll 39 is wound.

  From the T die 35, a predetermined amount of the molten synthetic resin 15 a is continuously extruded in the form of a sheet onto the back surface of the resin sheet attached to the upper surface side of the receiving roll 33, and this is used as the laminate layer 15.

  The molten synthetic resin used as the laminate layer 15 uses a polyethylene material having the same quality as that of the resin sheet 16 and supplies it to the back surface of the resin sheet 16 with a melting temperature of 200 to 330 ° C.

The pressurizing roll 34 presses the molten synthetic resin between the front side liner 17 and the resin sheet 16 and presses it between the receiving roll 33 and the pressurizing force is 0. The size is set to about 5.0 to 5.0 kg / m ² , preferably about 1.0 to 1.5 kg / m ² . Further, the thickness of the laminate layer 15 is adjusted to 5 to 35 μm according to the pressure applied by the pressure roll 34, the sheet feeding speed, and the melted synthetic resin feed amount.

  Since the molten synthetic resin supplied to the back surface of the resin sheet 16 is 200 to 330 ° C., the resin sheet 16 of the same quality is fused and integrated with each other.

  However, since the melting temperature is low, the viscosity is high, the penetration performance into the structure of the front side liner 17 is low, and the pressure applied by the pressure roll 34 is small, so the molten synthetic resin is a structure of the front side liner 17. The front liner 17 is bonded in a state where it does not sufficiently penetrate into the inside and thus easily peels off.

  Next, as shown in FIG. 7, the corrugator is used to sequentially bond the corrugated core material 18 and the back side liner 19 to the back surface of the front side liner sheet 40 where the above-mentioned resin sheet 16 and the front side liner 17 are bonded together. Then, it is cut into a predetermined shape to form the support plate 30.

  The corrugator includes a single facer A, a double facer (double backer) B, a drying section C and a cutter D. The single facer A forms a core material 18 in a corrugated cross section, and the core material 18 and the front liner sheet. And then it is fed to the double facer B and pasted to the back side member 28. The adhesive is dried and fixed by the drying section C to be formed into a corrugated paper shape, and then cut into a predetermined size by the cutter D. The plate member 30 for the support plate is formed.

  It should be noted that perforations 26a are formed at the corners of the support plate material 30 cut to a predetermined dimension, and a detachable triangular peeling assisting piece 26 is formed.

  The primary hole 41 and the cut flower insertion hole 11 are formed in the plate member 30 for the support plate thus formed by Thomson processing or the like.

  First, a primary hole 41 penetrating in the front and back direction is formed in the center of the support plate 30 by a primary punching die having a blade such as a Thomson blade in a circular arrangement smaller than the diameter of the cut flower insertion hole 11.

  Next, the cut flowers of the support plate main body 14 arranged around the primary hole 41 by the insertion hole punching die 43 in which the Thomson blade 42 is arranged in accordance with the outer shape of the cut flower insertion hole 11 from the back surface side of the support plate material 30. The inner portion 44 of the insertion hole 11 is separated from the support plate body 14.

  At this time, as shown in FIG. 8, the Thomson blade 42 is stopped at a position where the support plate body 14 is cut and the resin sheet 16 is not reached.

  Then, by removing the inner portion 44 cut off from the support plate main body 14, the ring-shaped heat fusion margin 20 projecting integrally inside the cut flower insertion hole 11 of the resin sheet 16 passes through the cut flower insertion hole 11 and the support plate 12. Exposed on the back side.

  Since the resin sheet 16 and the support plate main body 14 are in a state where they can be easily peeled off by applying a certain level of force, the inner portion 44 can be easily peeled off from the resin sheet 16 and removed. It has become.

  Next, a shallow cut is made with a Thomson blade or the like from the surface side of the support plate 12, that is, the resin sheet side, and a U-shaped cut line 27 is formed in parallel with the outer periphery of the resin sheet 16.

  Thereby, the stringers 28 and 28 for squeezing are integrally formed on the outer edge portion of the resin sheet 16.

  Thus, the manufacturing process of the support plate 12 is completed.

  On the other hand, the manufacturing method of the water retaining bag 13 for cut flowers is as follows. First, a melted synthetic resin material is formed on a sheet made of a water-impermeable material such as polyethylene constituting the outer bag material 21 at a predetermined interval by linear lamination. And a sheet made of a water-retaining material constituting the inner bag material 23 is laminated and pressed thereon, so that the water-impermeable material sheet, the linear laminate, and the water-retaining material sheet are attached in three layers. A combined sheet is formed, the three-layer sheet is cut into a predetermined shape, and an opening 25 is formed at a predetermined position.

  Next, the cut three-layer sheet material is formed into a cylindrical shape by fusing both edges thereof by heat sealing, and in a state where both sides of the portion having the opening 25 are folded inward to form a flat plate shape. Both open ends are closed by heat sealing.

  Thereby, the water retention bag 13 for cut flowers is formed in the bag shape which has a town part on both sides.

  The cut water retaining bag 13 is folded in a flat plate shape, and the heat sealing allowance 20 is overlapped with the cut flower retaining bag 13, that is, the opening edge of the outer bag material 21. A heater is pressed from the front surface side with a predetermined pressure to heat-seal the opening edge 20 to heat-seal 20 so that the water retention bag 13 for cut flowers is fixedly connected to the back surface of the support plate 12 for cut flower packing. A water retention container 10 is formed.

  This completes the work.

  In the above-described embodiment, the example in which the support plate main body 14 is configured by double-sided corrugated paper has been described. However, the support plate main body 14 may be double-sided corrugated paper or double-sided corrugated paper.

  Further, the support plate main body 14 may be a paper plate material such as cardboard or cardboard, a synthetic resin plate material, or the like in addition to corrugated cardboard.

  In the above-described embodiment, the example in which the front side liner sheet and the middle core material are pasted together and then the back side liner is pasted has been described. However, the middle core material and the rear side liner are pasted together in advance, You may make it stick with a liner sheet.

  Further, in the above-described embodiment, a member obtained by bonding the resin sheet and the support plate body is cut into a predetermined shape, and a primary hole and a cut flower insertion hole are sequentially formed therein, so that the heat fusion margin is inserted into the cut flower. Although an example of forming a support plate in which a resin sheet projecting inside the hole and the support plate main body are bonded together has been described, the support plate is formed from a support plate main body in which a cut flower insertion hole is formed in advance and a cut flower insertion hole in advance. You may make it form by bonding together the resin sheet in which the hole with a small diameter was formed.

  In the above-described embodiment, the example in which the squeezing string member is provided on the outer edge portion of the resin sheet has been described. However, the squeezing cord member is not provided on the resin sheet, and the resin sheet is made of a separately prepared string. You may make it squeeze the opening edge part of the water retention bag for cut flowers.

  In the above-described embodiment, an example in which the support plate is square has been described. However, the support plate may have a shape such as a rectangle or a polygon.

  In the above-described embodiment, the example in which the circular cut flower insertion hole is provided in the center of the support plate has been described. However, the shape of the cut flower insertion hole may be an elliptical shape, a long hole shape, or the like. A plurality of locations may be provided.

It is a perspective view which shows an example of the water retention container for cut flower packing which concerns on this invention. It is sectional drawing of the water retention container for cut flowers packing same as the above. It is the perspective view which looked at the support plate in FIG. 1 from the lower side. It is sectional drawing which shows the state accommodated in the packing box of the water retention container for cut flowers packing same as the above. It is a front view which shows the water retention bag for cut flowers isolate | separated from the support plate. It is a side view which shows the outline of the bonding process of the resin sheet and front side liner in the method of this invention. It is a side view which shows the outline of a support plate formation process same as the above. It is sectional drawing which shows the outline of a cut flower insertion hole formation process same as the above.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Water retaining container for cut flower packing 11 Cut flower insertion hole 12 Support plate 13 Water retaining bag for cut flower 14 Support plate main body 15 Laminate layer 16 Resin sheet 17 Front side liner 18 Middle core material 19 Back side liner 20 Heat seal 21 Outer bag material 22 Linear Laminate layer 23 Inner bag material 24 Town part 25 Opening part 26 Peeling aid piece 26a Perforation 27 Cut-off line 28 Mouth draw string 29 Cut flower packing box 29a Support projection 30 Support plate material 31 Front liner feed roll 32 Resin sheet Feeding roll 33 Receiving roll 34 Pressure roll 35 T die 36 Molten synthetic resin supply device 37, 38 Guide roll 39 Winding roll 40 Front side liner sheet 41 Thomson blade 42 Insert hole punching die 43 Inner part

Claims (8)

In a water retention container for cut flower packing comprising a support plate having a cut flower insertion hole, and a water retention bag for cut flowers fixed in communication with the cut flower insertion hole on the back surface of the support plate,
The water retention bag for cut flowers, at least the surface is formed of a thermoplastic resin material,
The support plate is composed of a flat support plate main body and a resin sheet that is bonded to the surface of the support plate main body and integrally includes a heat-sealing margin that protrudes inside the cut flower insertion hole. A water retention container for cut flower packaging, characterized in that the margin and the opening edge of the water retention bag for cut flowers are heat-sealed.   The water retention container for cut flower packaging according to claim 1, wherein the resin sheet is detachably bonded to the surface of the support plate body.   The water retention container for cut flower packaging according to claim 2, wherein the resin sheet is formed in a sheet shape integrally including a string for mouth drawing at an outer edge portion.   The water retaining container for cut flower packaging according to claim 1, 2 or 3, wherein the support plate main body integrally has a separation assisting piece that can be separated from the outer peripheral portion. In a manufacturing method of a water retention container for cut flower packaging, comprising a support plate having a cut flower insertion hole, and a water retention bag for cut flowers fixed to the cut flower insertion hole in communication with the back surface of the support plate.
Forming a support plate comprising a plate-like support plate main body and a thermoplastic resin sheet integrally bonded to the surface of the plate and having a heat-sealing margin projecting inside the cut flower insertion hole; A cut flower characterized in that a heat-sealing margin is overlapped on an opening edge of the cut water retention bag, and the heat-sealing margin is heat-sealed to the opening edge to fix the support plate to the cut flower water retention bag. Manufacturing method of water holding container for packing.   A thermoplastic resin sheet is superposed on the surface of the support plate body via a melted synthetic resin material to form a support plate material in which the resin sheet and the support plate body are detachably bonded to each other. After forming the primary hole penetrating vertically in the plate material, the inner part of the cut flower insertion hole of the support plate main body around the primary hole is separated from the support plate main body, the inner part is removed, and heat is applied to the inner side of the cut flower insertion hole. 6. The water retention for cut flower packaging according to claim 5, wherein a fusion margin is extended, and the heat fusion margin is thermally fused to the opening edge of the water retention bag for cut flowers to fix the support plate to the water retention bag for cut flowers. Container manufacturing method.   The plate material for the support plate is adhered to the back side of the resin sheet with a molten synthetic resin material continuously extruded from a die of a laminate layer molding machine, and a flat front liner is laminated on the back side of the molten synthetic resin material. And forming a member in which the resin sheet and the front side liner are bonded together in advance through a laminate layer, and thereafter, a corrugated cross section is formed between the front side liner and the flat back side liner. The manufacturing method of the water retention container for cut flower packing of Claim 5 or 6 which forms an intermediate core material and bonds together the said front side liner, an intermediate core material, and a back side liner.   The manufacturing method of the water retention container for cut flower packing of Claim 5, 6 or 7 which puts the cut | interruption cut | disconnection in parallel arrangement with the outer periphery of a resin sheet, and forms the string body for mouth-drawing in the outer edge part of a resin sheet.