JPH0653453U - Bag-in-box for viscous liquids - Google Patents

Abstract

(57) [Abstract] [Purpose] The present invention is intended for viscous liquids such as food seasonings, adhesives, printing inks, etc., and is capable of easily sucking and discharging the viscous liquid and reducing the amount of residual liquid discharged. It concerns less bag-in-boxes. [Constitution] The present invention stores a bag made of a flexible resin film or the like in a rigid rectangular parallelepiped box made of corrugated cardboard or paperboard, and an opening penetrating the lower front side surface of the box. In the bag-in-box with the plug attached to the bag,
An elongated plate-shaped liquid guide plate (40) having a plurality of recessed portions (41) in the lengthwise direction and one end bent, is provided with a liquid passage opening at the upper inner surface and the lower inner surface of the plug body (30). The lower surface of the liquid guiding plate (40) in the shape of an elongated plate is heat-sealed to the lower part of the inner surface of the bag so that (31, 31) remains, or the bending of the liquid guiding plate (40) in the shape of an elongated plate. A bag-in-box for a viscous liquid, in which one end is heat-sealed to the center of the inner surface of the plug body (30).

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention is a bag-in-box for viscous liquids such as food seasonings, adhesives, printing inks, etc. that can be easily sucked and discharged with a small amount of residual liquid discharged. It is about.

[0002]

[Prior art]

 Conventionally, bags made of flexible resin films containing viscous liquids for viscous liquids such as food seasonings, adhesives, printing inks, etc. A composite container for liquid, commonly referred to as a bag-in-box, is used, which is housed in a rectangular parallelepiped box body and has a spigot body penetrating the lower part of the front side of the box body attached to the bag body. When the viscous liquid is sucked and discharged, as shown in FIG. 6, the flexible bag body (10) is deformed and reduced, and the viscous liquid does not enter through the plug body (30). Since it can discharge (50), it is conveniently used especially for viscous liquids that do not like contact with air.

Further, conventionally, in order to facilitate the suction and discharge of the viscous liquid, an elongated plate having a plurality of recessed ridges in the length direction as shown in, for example, Japanese Utility Model Laid-Open No. 4-41848. A liquid-conducting plate commonly called a dip strip is used.

[0004]

[Problems to be solved by the device]

 However, when the viscous liquid stored in the conventional bag-in-box is sucked and discharged using a vacuum suction device or the like, as shown in FIG. 6, the viscous liquid stored in the flexible bag body (10) is used. As the viscous liquid (50) is aspirated and reduced, the bag body (10) near the mouth plug (30) deforms and shrinks first, blocking the mouth plug (30) and making it impossible to aspirate and discharge. Was a problem, and it took a long time to suck and discharge the viscous liquid, such as the need to re-suck after a while, and the amount of residual liquid discharged was not small.

[0005]

[Means for Solving the Problems]

 In order to solve the above problems, the present invention, as shown in FIG. 1 to FIG. 4, includes a bag (10) made of a flexible resin film, which is made of a rigid corrugated cardboard or paperboard. In a bag-in-box in which a plug (30) that is housed in a rectangular parallelepiped box body (20) and penetrates the lower front side of the box body (20) is attached to the bag body (10) The liquid guide plate (40) in the shape of an elongated plate with one end bent, which has a plurality of recessed portions (41) in the direction, is positioned along the entire length of the lower inner surface of the bag (10), The bottom surface of this elongated plate-shaped liquid guide plate (40) so that the liquid passage openings (31, 31) remain in the upper part of the inner surface (viscous liquid side, the same below) of the mouth plug (30) and the lower part of the inner surface. The side is heat-sealed to the lower part of the inner surface of the bag body (10), or the bent one end of this elongated plate-shaped liquid guide plate (40) is located at the center of the inner surface of the plug body (30). Of viscous liquid, which is characterized by being heat-sealed to (EN) A bag-in-box for viscous liquids that can be easily discharged and has a small amount of residual liquid discharged.

Further, according to the present invention, as shown in FIG. 5, the elongated plate-shaped liquid guiding plate (40) shown in FIGS. 2 and 4 has a plurality of recesses in the longitudinal direction on the upper surface side and the lower surface side. A liquid guide plate (40) in the form of an elongated plate having a portion (41), wherein a plurality of liquid passage holes are provided between the concave portion (41) on the upper surface side and the concave portion (41) on the lower surface side. The present invention provides a bag-in-box for viscous liquid, which is characterized in that (44) is provided, which further facilitates suction and discharge of the viscous liquid, and has a small amount of residual liquid discharged.

Regarding the bag body (10) of the present invention made of a flexible resin film or the like, an appropriate packaging material such as polyethylene (PE), polypropylene (PP), polyester (PET) or the like can be used. Using a thick heat-fusible resin film or its laminated resin film, etc., a normal three-sided seal bag with an opening for caps (no reference number) with an internal volume of 0.5 to 20 liters or A bag body (10) such as a joint seal bag or a folded seal bag (commonly referred to as a gusset bag) can be manufactured without restriction in a normal bag manufacturing process.

Regarding the rectangular parallelepiped box body (20) of the present invention, such as a corrugated board or a paperboard, which has rigidity, a normal corrugated board or a thick board is used to store the viscous liquid. A rectangular parallelepiped box body (20) of an appropriate structure that is large enough to accommodate the bag body (10) and has a through hole (21) for the spout body (30) in the lower part of the front side surface. Boxes can be made in the normal box making process without any restrictions.

As for the plug body (30) which penetrates the lower part of the front side of the box body (20) attached to the bag body (10) of the present invention, ordinary polyethylene (PE) or polypropylene (PP) is used. A cylindrical plug body (33) having a disc-shaped flange portion (32) for heat-sealing the bag body (10) and a fitting structure portion (33) with a sealing lid (not shown). 30) can be molded without restriction by a normal injection molding method, and the through hole (21) for the stopper body (30) provided at the lower part of the front side surface of the box body (20) is to be penetrated. In addition, the periphery of the mouth opening (no reference number) provided in the bag body (10) is heat-sealed to the disc-shaped flange portion (32) to penetrate the lower part of the front side surface of the box body (20). The plug body (30) is attached to the bag body (10). In this case, in order to reinforce the plug body (30) attached to the bag body (10), it is preferable to attach the bag body (10) around the plug body (30) to the box body (20). It is a thing.

The liquid guide plate (40) of the present invention, which has a plurality of recessed portions (41) in the lengthwise direction and which is bent at one end and has a slender plate shape, is made of ordinary polyethylene (PE) or polypropylene (PP). 2), the width is about 1 to 2 times the outer diameter of the flange portion (32) of the plug body (30) and the length is equal to that of the bag body (10), as shown in FIGS. The length (horizontal direction in FIGS. 1 and 3) is almost the same as the length, and the height of one bent end from the bottom of the inner surface of the bag (10) is the center of the inner surface of the plug (30). The height is approximately the same as that of the one with one side end having a plurality of recessed portions (41) in the length direction bent at 30 to 70 degrees, and the wall thickness is about 0.5 to 2.0 mm. The liquid guide plate (40) in the form of an elongated plate can be molded by a usual injection molding method, compressed air, vacuum molding method, or the like. In this case, the lower part of the bag (10) is protected by the elongated plate-shaped liquid guide plate (40) located along the entire length of the lower part of the inner surface of the bag (10). It is preferable to attach it to).

[0011]

[Action]

 In the bag-in-box for viscous liquid of the present invention, when the viscous liquid is sucked and discharged by using a vacuum suction device or the like, as shown in FIG. 6, the bag is housed in a flexible bag body (10). As the viscous liquid (50) is sucked and reduced, even if the bag body (10) near the mouth plug (30) is first deformed and reduced to close the mouth plug (30), In addition, even if the bag body (10) near the mouth plug (30) is deformed and reduced in order and comes in close contact with the elongated liquid guide plate (40), as shown in FIGS. 2 and 4. Position the liquid guide plate (40) in the shape of an elongated plate that has a plurality of recesses (41) in the lengthwise direction and one end of which is bent along the entire length of the bottom of the inner surface of the bag (10). Then, the lower surface side of the elongated plate-shaped liquid guide plate (40) is placed on the bag body (10) so that the liquid passage holes (31, 31) remain in the upper inner surface and the lower inner surface of the stopper (30). ) By heat-sealing to the lower part of the inner surface of the liquid guide plate (40). By heat-sealing the bent one end to the center of the inner surface of the plug body (30), a plurality of recessed portions (41) in the lengthwise direction of the elongated liquid guide plate (40) are adhered. The viscous liquid (50) can be continuously sucked and discharged through the liquid passage openings (31, 31) left on the upper inner surface and the lower inner surface of the plug body (30). A bag-in-box for a viscous liquid, which can easily suck and discharge the viscous liquid and has a small amount of residual liquid left to be discharged.

Further, in the bag-in-box for viscous liquid of the present invention, as shown in FIG. 5, an elongated plate having a plurality of recessed portions (41) in the longitudinal direction on the upper surface side and the lower surface side. A liquid guide plate (40) having a plurality of liquid passage holes (44) between the upper concave portion (41) and the lower concave portion (41). , The viscous liquid (50) uniformly passes through the plurality of recessed portions (41) in the length direction on the upper surface side and the lower surface side of the elongated plate-shaped liquid guide plate (40), and the stopper body (30 The viscous liquid (50) can be more easily and continuously sucked and discharged through the liquid passage openings (31, 31) left in the upper part of the inner surface and the lower part of the inner surface.

When a normal liquid that is not the viscous liquid (50) is stored in the bag-in-box, the normal liquid stored in the flexible bag body (10) is usually sucked and reduced, and Since the bag body (10) does not uniformly deform and shrink due to the self-weight of the liquid, and does not block the spout body (30), the elongated liquid guide plate (40) of the present invention is not used. However, ordinary liquid can be easily sucked and discharged continuously, and the amount of residual liquid discharged is small.

[0014]

【Example】

 <Example 1> FIG. 1 is a sectional view of a bag-in-box for a viscous liquid in Example 1 of the present invention. That is, a bag (10) made of a laminated resin film of flexible polyester (15 μm) and polyethylene (60 μm), containing 500 g of gravure ink (50), is 70 mm in length, width, and height. An inner diameter of 10 mm made of polyethylene, which is housed in a rectangular box body (20) made of rigid paperboard of 100 mm and 85 mm and penetrates the lower part of the front side surface (left side surface in Fig. 1) of the box body (20). In a bag-in-box in which the cylindrical plug body (30) of (1) is attached to the bag body (10), an elongated plate-shaped liquid guide with one end having a plurality of recessed portions (41) in the length direction is bent. Position the plate (40) along the lower length of the inner surface of the bag body (10) along the length of the bag body (10) so that the liquid passage openings (31, 31) are formed in the upper inner surface and the lower inner surface of the plug body (30). As shown, the cross section of the bag-in-box for viscous liquid of Example 1 in which the lower surface side of the elongated liquid guide plate (40) is heat-sealed to the lower inner surface of the bag body (10) is shown. It was done.

FIG. 2 shows that in the bag-in-box for the viscous liquid of Example 1, the lower surface side of the liquid guiding plate (40) in the shape of an elongated plate with one end bent is located below the inner surface of the bag body (10). It is a perspective view which shows the state which carried out heat fusion. That is, the width is 40 mm, which is about twice the outer diameter of the flange portion (32) of the plug body (30), and the length is approximately the length of the bag body (10) in the vertical direction (left and right direction in FIG. 1). The same liquid guide plate (40), which is made of polyethylene and has a thickness of 0.5 mm, and which has a bent portion (42) of 45 degrees at a position of 15 mm from one end and is 15 mm from one end, is attached to the bag body ( Position it along the entire length of the lower part of the inner surface of 10) so that the semicircular liquid passage openings (3 1, 31) remain in the upper part of the inner surface and the lower part of the inner surface of the plug body (30). The figure shows a state in which the lower surface side of the elongated liquid guide plate (40) is heat-sealed to the lower inner surface of the bag body (10).

FIG. 5 (A) shows an elongated plate-shaped liquid guide plate (40) having a plurality of recessed portions (41) in the length direction in the bag-in-box for viscous liquid of Example 1. It is a fragmentary sectional view showing a shape. That is, there are six elongated liquid-conducting plates (0.8 mm thick) each having six recessed portions (41) with a width of 3 mm and a depth of 2 mm on the upper surface side and the lower surface side. 40), and 4 to 6 liquid passage holes (44) each having a diameter of 1 mm are provided between the upper concave portion (41) and the lower concave portion (41). It shows the state of being closed.

Next, in the bag-in-box for the viscous liquid containing the gravure ink (50) of the present embodiment shown in FIGS. 1, 2 and 5 (A), a gravure is used by using an ordinary piston pump. When the ink (50) is sucked and discharged, even if the bag body (10) near the plug body (30) deforms and shrinks first to close the plug body (30), Even if the bag (10) in the vicinity of (30) is deformed and reduced in order and adheres to the elongated liquid-conducting plate (40), it is heat-sealed to the lower part of the inner surface of the bag (10). The elongated plate-shaped liquid guide plate (40) was capable of continuously sucking and discharging the gravure ink (50), and the amount of residual liquid discharged was small.

Example 2 FIG. 3 is a sectional view of a bag-in-box for a viscous liquid in Example 2 of the present invention. That is, a bag (10) made of polypropylene film having a thickness of 0.5 mm and containing 15 liters of emulsion adhesive (50) and having flexibility of 30 cm, 22 cm, and 26 cm in height, width, and height, respectively. It is housed in a rectangular box body (20) made of A corrugated cardboard, which has rigidity, and penetrates the lower part of the front side surface (left side surface in FIG. 3) of the box body (20) and has an inner diameter of 32 mm made of polypropylene. In a bag-in-box in which a cylindrical plug body (30) is attached to a bag body (10), an elongated plate-shaped liquid guide with one end bent having a plurality of recessed portions (41) in the length direction. Position the plate (40) along the entire length of the lower portion of the inner surface of the bag body (10) so that the liquid passage openings (31, 31) are formed on the upper inner surface and the lower inner surface of the spout body (30). The bag-in-box for the viscous liquid of Example 2, in which the bent one end of the elongated liquid guide plate (40) was heat-sealed to the center of the inner surface of the plug body (30) so as to remain. Cross section It is shown.

FIG. 4 shows that in the bag-in-box for a viscous liquid of Example 2, one end of a slender plate-shaped liquid guide plate (40) that is bent is heat-fused to the center of the inner surface of the plug body (30). It is a perspective view showing a worn state. That is, the width is approximately 5 cm, which is approximately the same as the outer diameter of the flange portion (32) of the plug body (30), and the length is approximately the same as the length of the bag body (10) in the vertical direction (left and right direction in FIG. 3). 22.5 cm, and is a thin plate-shaped liquid guide made of polypropylene with a thickness of 1.0 mm, which is provided with two bent parts (42, 42) of 45 degrees at positions 2 cm and 6 cm from one end. Position the plate (40) along the entire length of the lower part of the inner surface of the bag body (10), and make semicircular through holes (up to the inner surface upper part and the lower part of the inner surface of the plug body (30)). The bent one end of the elongated liquid guide plate (40) is heat-sealed to the center of the inner surface of the flange (32) of the plug (30) so that the (31, 31) remains. It is a thing.

FIG. 5 (B) shows an elongated plate-shaped liquid guide plate (40) having a plurality of lengthwise recessed portions (41) in the bag-in-box for viscous liquid of Example 2. It is a fragmentary sectional view showing a shape. That is, there are seven elongated liquid-conducting plates (5 mm in total), each having seven recessed portions (41) with a width of 6 mm and a depth of 2 mm on the upper surface side and the lower surface side. 40), and 4 to 6 liquid passage holes (44) each having a diameter of 3 mm are provided between the upper concave portion (41) and the lower concave portion (41). It shows the state.

Next, in the bag-in-box for a viscous liquid containing the emulsion adhesive (50) of this embodiment shown in FIGS. 3, 4 and 5 (B), the box body (20) The through hole (21) formed by the cut line is opened, and the plug body (30) attached by heat fusion to the bag body (10) is pulled out, and a normal vacuum suction device (40 mmHg, 2. When the emulsion adhesive (50) was sucked and discharged using 4 l / min), the bag body (10) near the mouth plug (30) was first deformed and reduced to close the mouth plug (30). However, even if the bag (10) in the vicinity of the stopper (30) is deformed and reduced in order and adheres to the liquid guide plate (40) in the shape of an elongated plate, the stopper ( By the action of the slender plate-shaped liquid guide plate (40) heat-sealed to the central part of the inner surface of (30), it is possible to continuously suck and discharge, and suction the emulsion adhesive (50) in about 8 minutes. Then, the discharge was completed and the amount of residual liquid discharged was small.

[0022]

[Effect of device]

 As described above, in the bag-in-box for viscous liquid of the present invention, when the viscous liquid is sucked in and discharged using a vacuum suction device, the bag-in-box for viscous liquid is stored in a flexible bag body. As the viscous liquid is sucked and decreases, even if the bag body near the mouth plug deforms and shrinks first to block the mouth plug, the bag body near the mouth plug also deforms in order. Even if it contracts and may come into close contact with the elongated plate-shaped liquid guiding plate (40), due to the action of the elongated plate-shaped liquid guiding plate (40) heat-sealed to the lower part of the inner surface of the bag body (10), Or, by the action of the elongated plate-shaped liquid guide plate (40) heat-sealed to the central portion of the inner surface of the mouth plug (30), a plurality of recesses in the elongated direction of the elongated plate-shaped liquid guide plate (40) are formed. The viscous liquid passes through the ridge (41), and the viscous liquid is continuously sucked from the liquid passage openings (31, 31) left in the upper inner surface and the lower inner surface of the mouth plug (30). That can be discharged, A simple discharge of pull to, those capable of providing a bag-in-box for viscous liquid discharged residual liquid volume is not small.

Further, in the bag-in-box for viscous liquid of the present invention, the liquid guiding plate (40) in the shape of an elongated plate having a plurality of recessed portions (41) in the longitudinal direction on the upper surface side and the lower surface side. ), And by providing a plurality of liquid passage holes (44) between the recessed portion (41) on the upper surface side and the recessed portion (41) on the lower surface side, an elongated plate-shaped liquid guide is provided. A viscous liquid that evenly passes through a plurality of recessed portions (41) in the lengthwise direction on the upper surface side and the lower surface side of the plate (40) so that the viscous liquid can be sucked and discharged continuously more easily. Is.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a bag-in-box for viscous liquid according to a first embodiment of the present invention.

FIG. 2 In the bag-in-box for viscous liquid of Example 1, the lower surface side of the liquid guiding plate (40) in the shape of an elongated plate with one end bent is heat-sealed to the lower inner surface of the bag body (10). It is a perspective view showing a state.

FIG. 3 is a cross-sectional view of a bag-in-box for viscous liquid according to the second embodiment of the present invention.

FIG. 4 is a diagram showing a bag-in-box for a viscous liquid of Example 2, wherein a slender plate-shaped liquid guiding plate (40) is provided with a bent one end.
It is a perspective view showing a state in which the inner surface center portion of (30) is heat-sealed.

FIG. 5 shows the shape of an elongated liquid guide plate (40) having a plurality of recessed portions (41) in the length direction in the bag-in-boxes for viscous liquids of Examples 1 and 2. It is a fragmentary sectional view shown.

FIG. 6 is a cross-sectional view showing a state in which the contained viscous liquid (50) is sucked and discharged in a conventional bag-in-box.

[Explanation of symbols]

10 ... Bag body 11,43 ... Heat fusion part 20 ... Box body 21 ... Through hole 30 ... Plug body 31 ... Liquid passage opening 32 ... Flange part 33 ... Fitting structure part 40 ... Elongated plate-shaped liquid guide plate 41 ... Recessed portion 42 ... Bent portion 44 ... Liquid passage hole 50 ... Viscous liquid, gravure ink, emulsion adhesive

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Yukio Ohno 1-5-1 Taito, Taito-ku, Tokyo Tokyo Toppan Printing Co., Ltd. (72) Norio Ikeda 5-1-1 Taito, Taito-ku, Tokyo Toppan Imprint Co., Ltd.

Claims (3)

[Scope of utility model registration request] 1. A bag body made of a flexible resin film or the like.
The (bag) is housed in a rigid rectangular parallelepiped box (inbox) such as cardboard or paperboard, and a spigot that penetrates the lower front side of the box is attached to the bag. In, the liquid guide plate (40) in the shape of an elongated plate with one end bent having a plurality of recessed portions (41) in the lengthwise direction is positioned along the entire length of the lower inner surface of the bag body. , Mouth plugs (30)
It is characterized in that the lower surface side of this elongated plate-shaped liquid guide plate (40) is heat-sealed to the lower inner surface of the bag body so that the liquid passage openings (31, 31) remain in the upper inner surface and the lower inner surface of the bag. Bag-in-box for viscous liquids. 2. The stopper plate (30) is provided by arranging the elongated plate-shaped liquid guide plate (40) so as to extend along substantially the entire length of the inner surface lower part of the bag body.
Place one end of the elongated liquid guide plate (40) at the center of the inner surface of the plug body (30) so that the liquid passage holes (31, 31) remain in the upper part of the inner surface and the lower part of the inner surface. The bag-in-box for viscous liquids according to claim 1, which is heat-sealed. 3. An elongated plate-shaped liquid guiding plate (40) having a plurality of recessed portions (41) in the length direction on the upper surface side and the lower surface side of the liquid guiding plate (40). ) And a plurality of liquid passage holes (44) are provided between the upper concave portion (41) and the lower concave portion (41). Or the bag-in-box for viscous liquids of Claim 2.