JP4110940B2 - Liquid storage container with nozzle - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a liquid storage container with a nozzle formed in a bag shape.
[0002]
[Prior art]
As one type of liquid storage container with a liquid pouring part, a lot of bag-like flexible packaging bodies (pouches) used for refilling contents such as liquid detergents, liquid softeners, liquid soaps, etc. are provided on the market. Among them, as a technique for improving the ease of pouring at the time of refilling in a standing pouch, that is, a standing-type liquid storage container, in a packaging bag with a dispensing function having a nozzle portion formed by heat sealing a plastic film, A bulging part 5 is provided in the nozzle part, a first valley fold line 6 is provided from the lower end of both sides of the nozzle part 5 or the vicinity thereof toward the inside of the packaging bag, and the intersection of the first valley fold line 6 or the vicinity thereof is provided. There is a configuration in which a second valley fold line 7 is provided below and a mountain fold line 8 is provided on both sides of the second valley fold line 7 (see Patent Document 1).
[0003]
[Patent Document 1]
Japanese Unexamined Patent Publication No. 2000-177756 (pages 2 and 3, FIGS. 1-2)
[0004]
[Problems to be solved by the invention]
In Patent Document 1, an improvement in the opening state of the nozzle portion can be seen from the previous one, but from the viewpoint of sufficiently maintaining the opening of the nozzle portion, the first valley fold line 6 and the second valley fold line 7 are used. The mountain fold line 8 is formed to be considerably deep, and there are problems such as an increase in the thickness of the packaging bag film and an associated increase in cost in order to prevent breakage at each fold line portion. In addition, the processing is complicated due to the formation of a plurality of fold lines of mountain fold lines and valley fold lines. Furthermore, there is a problem in that each fold line portion is conspicuous and the nozzle portion of the packaging bag is wrinkled and looks bad.
[0005]
In view of these points, the present invention provides a liquid container with a nozzle that has a nozzle that opens well and has a good appearance, even if it is not a specially thick plastic film or sheet, due to the specified simple broken line. Is to provide.
[0006]
[Means for Solving the Problems]
The standing-type nozzle-equipped liquid storage container of the present invention forms a liquid storage part inside by sealing the peripheral part around the upper side part, the left and right side parts and the bottom part of a pair of front and back plastic films or sheets, A liquid pouring nozzle is formed by side seals on both sides so as to face obliquely upward at the corner portion of the upper side portion and one of the left and right side portions, and the lower portion is swollen and the upper portion is narrowed In a stationary liquid storage container with a nozzle, a linear shape in which the central portion of the nozzle swells outward in a path from the tip of the nozzle toward the liquid storage portion is opposed to the front and back surfaces of the nozzle . a convex muscles, to form a concave muscle recessing inward path towards the liquid containing portion direction from the tip of the nozzle only in the nozzle portion of the lower side of the convex muscle, the concave muscle, the Nozzle tip Toward the root portion of the side seal of the lower al the nozzle, a distance between the convex muscle with a length shorter than the length of the side seal and is formed so as gradually increases.
[0007]
In this configuration, by inserting the nozzle into the mouth of the refill destination container for liquid refilling, the side seal portions on both sides of the nozzle are pushed in a direction approaching the mouth of the refill destination container. The nozzle bulges outward due to the convex streaks in its central part, but the presence of concave streaks on the lower side of the nozzle makes it easy for the concave streaks and its neighboring parts to protrude inwardly. By pushing the side seal part on the side at the mouth of the refilling destination container, the concave stripe and the vicinity thereof are inserted inward of the nozzle, and an outward bend around the convex stripe is formed. Opening is good. In this case, when the side seal part is pushed in a straight direction by the mouth of the refill destination container, the pair of front and back concave stripes and the vicinity thereof are inserted into the nozzle, but the side seal part is pushed by the mouth of the refill destination container. In a fallen state, the recessed streaks on the fallen side and the vicinity thereof are inserted into the inside of the nozzle, and in either case, the nozzle opens favorably.
[0008]
The convex streak is formed in a straight line, and the concave streak is shorter than the length of the side seal from the tip of the nozzle toward the root of the side seal below the nozzle. Therefore, when the tip of the nozzle is pushed by the lip of the refill destination container, the spout portion is easier to open than the rear portion thereof by forming the gap with the convex streaks gradually larger. As a result, good liquid dispensing is achieved.
[0011]
In addition, a concave streak of an upper chord curve that is recessed inwardly in a path from the vicinity of the base portion of the side seal below the convex streak to the liquid storage part in the extended lower part of the convex streak is formed. Features.
[0012]
With this configuration, when the side seal portion on the lower side of the nozzle is pushed by the mouth of the container to be refilled to form an outward bend centered on the convex muscle, A valley along the line is formed, whereby the degree of opening of the nozzle base portion is improved.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Next, an embodiment of the present invention will be described. Each figure shows an embodiment of a liquid storage container with a nozzle of the present invention, FIG. 1 is a front view of the liquid storage container with a nozzle of the present invention, FIG. 2 is a perspective view of a nozzle portion of the present invention, and FIG. FIG. 4 is a cross-sectional view of a convex emboss formed on the nozzle of the present invention, FIG. 5 is a liquid refill state explanatory diagram of a liquid container with a nozzle of the present invention, and FIG. It is AA sectional drawing of 1. FIG.
[0014]
First, the structure of the liquid storage container with a nozzle of the present invention will be described with reference to the drawings. The liquid storage container 1 includes liquid detergent, liquid softener, liquid soap, and the like as liquid contents filled therein, and is used for refilling the liquid contents into containers such as other plastic containers. This is a standing-type liquid storage container with a nozzle called a standing pouch that can be placed upright on a table or the like with the bottom facing down. The liquid storage container 1 has a configuration in which a peripheral portion of a pair of plastic films or sheets positioned corresponding to the surface is sealed to form a liquid dispensing nozzle in a part. Specifically, the surface material 2, the back surface material 3 and the bottom surface material 4 which are positioned corresponding to the surface are heat-sealed at the peripheral portion as described later and configured in a bag shape. The back material 3 and the bottom material 4 are each made of a plastic film or sheet of any one of a transparent material, an opaque material, and a translucent material.
[0015]
This film or sheet is composed of, for example, a two-layer structure in which the outer layer is a nylon film and the inner layer is a linear low density polyethylene film, the outer layer is a biaxially stretched nylon film, and the intermediate layer is a uniaxially stretched polyolefin film. Three-layer structure with inner layer made of linear low-density polyolefin, outer layer with nylon film, intermediate layer with aluminum vacuum-deposited polyethylene terephthalate film, inner layer with three-layer structure made of linear low-density polyethylene film Also, the outer layer is an aluminum oxide-deposited polyethylene terephthalate film, the intermediate layer is a nylon film, the inner layer is a three-layer structure consisting of a linear low density polyethylene film, the outer layer is a polyethylene terephthalate film, and the outer intermediate layer is aluminum. Foil, inner middle layer Nylon film, a configuration of a four-layer structure in which the inner layer is made of linear low density polyethylene film.
[0016]
The peripheral bonding seal portion 5 between the surface material 2 and the back surface material 3, the lower portion of each of the surface material 2 and the back surface material 3, and the bonding seal portion 6 of the bottom surface material 4 spreading forward and backward are respectively heat-sealed, and the surface material A liquid storage portion 7 having a bottom extending forward and backward is formed in the liquid storage container 1 between 2 and the back material 3. With this configuration, the bottom surface 6A of the liquid storage portion 7 has a curved shape of an upper chord as shown in FIG. In addition, as a configuration of the film or sheet, the outer layer is transparent, the intermediate layer is a barrier film provided with an inorganic compound vapor deposition layer by depositing aluminum or other inorganic compounds by a method such as vacuum vapor deposition, and the appearance is It can also be set as the liquid storage container 1 which exhibits silver color.
[0017]
As described above, the liquid storage container 1 seals the peripheral portion around the upper side portion 10, the left side portion 11, the right side portion 12, and the bottom portion 13 of the plastic film or sheet constituting the surface material 2 and the back surface material 3. The liquid storage portion 7 is formed inside, and the taper shape toward the spout portion 9 at the tip of the upper side one corner portion 14 (which will be described in the form provided in the upper left corner portion as shown in the figure). This is a liquid storage container with a standing type nozzle in which the lower portion where the dispensing nozzle 8 is formed is swollen and the upper portion is narrowed. On both sides of the base portion of the nozzle 8, there are formed an upper dent 16 that opens upward in a V shape and a side dent 17 that opens laterally in a V shape. The depressions 16 and 17 prevent the tearing from the bottom by giving the bottom a roundness.
[0018]
Next, a specific configuration of the nozzle-containing liquid storage container 1 according to the present invention will be described with reference to the drawings. The liquid storage container 1 seals the peripheral portion around the upper side portion 10, the left side portion 11, the right side portion 12 and the bottom portion 13, and the peripheral portion of the nozzle 8, that is, the side seals 15A and 15B and the tip seal portion 15C on both sides. In this case, the liquid storage portion 7 having a shape in which the bottom portion expands forward and backward is formed. In this case, for filling the liquid into the liquid storage container 1, the upper recess 16 and the upper end portion of the right side portion 12 are formed. The other peripheral joint seal portions 5 and 6 are sealed leaving the portion 5A therebetween. In this state, filling of the liquid into the liquid storage container 1 is normally performed in a factory by inserting a liquid injection nozzle into an opening between the front material 2 and the back material 3 formed in the unsealed portion 5A. After this filling, the contents filling storage unit 7 is deaerated, and the unsealed portion 5A is heat sealed. The liquid storage container 1 filled with the liquid in this way has a shape in which the bottom part swells back and forth in the standing state, and the top side part 2 and the back side part 3 are separated by deaeration as shown in FIG. Close contact or contact.
[0019]
The surface material 2 and the back surface material 3 have a nozzle portion, that is, the nozzle portion including the nozzle 8 and the side seals 15A and 15B and the tip seal portion 15C on both sides thereof, and the left side of the end extension line 18 of the seal upper side portion 10. It is formed in a form that fits in the region R where the end extension line 19 of the side portion 11 intersects. If the length protrudes from the region R, the material removal of the front surface material 2 and the back surface material 3 becomes worse. Further, when a large number of liquid storage containers 1 filled with a liquid are packed or handled, the nozzle 8 becomes an obstacle, and the packing box becomes large or the handling when packing the box becomes inconvenient. This is not the case because it is formed to a length that fits within the region R.
[0020]
When the spout 9 is formed at the tip of the nozzle 8, the seal around the nozzle 8 is cut as shown by the dotted line in FIG. For this purpose, the spout portion 9 can be formed by manually tearing the front surface material 2 and the back surface material 3 from the notch 20 formed by cutting one of the side seals 15A and 15B, and the spout portion 9 can be formed without using a tool such as scissors. It is the structure which can be cut and formed.
[0021]
The front surface material 2 and the back surface material 3 are arranged at a position opposite to the front surface and the back surface of the nozzle 8 at the center of the nozzle 8 along the path from the tip portion of the nozzle 8 (specifically, from the spout portion 9) toward the liquid storage portion 7. Convex streaks 21 that swell outward are formed. The convex streaks 21 may be formed as mountain-shaped streaks (mountain streaks) that swell in a V-shape or U-shape from the inside to the outside of the nozzle 8, but as shown in FIG. It is also possible to adopt a convex embossed form having a trapezoidal shape whose width becomes narrower toward the outside. The convex embossing has a width T5 of 3 to 10 mm, and T6 of 5 to 10 mm, so that a satisfactory opening of the nozzle 8 can be obtained.
[0022]
Further, the lower nozzle portion of the convex streak 21 has a V-shape or U-shape inside the nozzle 8 along a path from the tip portion of the nozzle 8 (specifically, from the spout portion 9) toward the liquid storage portion 7. A concave streak (concave streak) 22 is formed.
[0023]
In this configuration, after the spout portion 9 is cut and formed, the nozzle 8 is inserted into the mouth of the refill destination container 30 for liquid refilling. As a result, the side seal portions 15A and 15B on both sides of the nozzle 8 are pushed in a direction approaching by the lip 31 of the container 30 to be refilled. The nozzle 8 bulges outward as indicated by the arrow in FIG. 3 due to the convex stripe 21 at the center thereof, and the concave stripe 22 and its vicinity are formed by the presence of the concave stripe 22 below the nozzle 8. It becomes easy to protrude inward of the nozzle 8. Therefore, when the side seal portion 15A on the lower side of the nozzle 8 is pushed by the lip 31 of the refill destination container 30, the concave streak 22 and the vicinity thereof are being inserted into the nozzle 8 as shown by the arrows in FIG. The outward bending around the convex streaks 21 is formed, and the opening of the nozzle 8 is good.
[0024]
In this case, when the side seal portions 15A and 15B are pushed in a straight direction by the lip 31 of the refill destination container 30, the pair of front and back concave streaks 22 and the vicinity thereof are inserted into the nozzle 8; Since the nozzle 8 is inserted into the mouth of the refill destination container 30 so that the side seal portion 15 </ b> A is on the lower side, the side seal portion 15 </ b> A may fall over due to the mouth edge 31 of the refill destination container 30. Further, in the case of the refill destination container 30 with a small mouth, the side seal portion 15 </ b> A may fall over due to the mouth edge 31 of the refill destination container 30. When it falls to the right side, for example, the right side in FIG. 3, the concave streak 22 on the right side in FIG. 3 and its vicinity are inserted into the nozzle. In either case, the nozzle opens well.
[0025]
Further, in the liquid storage container with a nozzle according to the present invention, the convex streaks 21 are formed in a straight line, and the concave streaks 22 formed in the nozzle portion below the convex streaks 21 are the tip of the nozzle 8 (please note in detail). From the outlet portion 9) toward the root portion of the side seal 15A, the distance T between the convex streaks 21 is gradually increased. For this reason, when the tip end of the nozzle 8 is pushed by the lip 31 of the refill destination container 30, the spout portion 9 can be easily opened wider than its rear portion, and as a result, good liquid dispensing is achieved. .
[0026]
Further, the nozzle 8 of the liquid storage container with a nozzle of the present invention is obliquely above the corner portion 14 by the side portion side recess 17 and the upper side portion recess 16 formed at the base portions of the side seals 15A and 15B on both sides. Convex shape is formed so as to face the front surface and the back surface of the nozzle 8, and the central portion of the nozzle 8 bulges outward along a straight path from the tip of the nozzle 8 toward the liquid storage portion 7. A streak 21 and a concave streak 22 which is in the lower nozzle portion of the convex streak 21 and is recessed inward in a path from the tip of the nozzle 8 (specifically, from the spout 9) toward the liquid storage part 7. The seal width T2 of the bottom seal portion 17A of the side portion side depression 17 is made wider than the seal width T3 of the side seals 15A and 15B on both sides of the nozzle 8 and the seal width T4 of the one side portion 11. Note that T3 ≦ T4.
[0027]
Thus, when the side seal part 15A, 15B falls down by the lip 31 of the refill destination container 30 in addition to the above-described effects by taking a large seal area at the bottom of the side part side depression 17, this side A wide portion of the seal width T2 at the bottom of the side recess 17 has a tensioning action, and the side seal portion 15A has a concave portion 22 on its tip side (outlet port 9 side) with the wide portion of the seal width T2 as a fulcrum. It will be in the fall state with the axis. In this case, when it falls to the right side in FIG. 3, for example, the right side in FIG. 3, the concave streak 22 on the right side and the vicinity thereof can be easily inserted into the nozzle 8, and the opening of the nozzle 8 is further improved. For this reason, the refilling to the refill destination container 30 with a small mouth also becomes favorable.
[0028]
In addition, the liquid storage container with a nozzle according to the present invention has an upper-curved curved streak that is recessed in a V shape or U shape inside the liquid storage container 1 along a path from the base portion of the side seal 15A to the liquid storage portion 7. (Concave line) 23 is formed.
[0029]
With this configuration, when the side seal portion 15A on the lower side of the nozzle 8 is pushed by the lip 31 of the container 30 to be refilled to form an outward bend around the convex streaks 21, this downward direction is formed. A valley is formed along the swelled concave chord 23 of the upper chord curve, whereby the opening of the root portion of the nozzle 8 is improved.
[0030]
The liquid storage container with a nozzle according to the present invention can achieve a good opening of the nozzle by preventing the nozzle from being blocked by the adhesion of the front and back films or sheets without forming a complicated folding line as described in the prior art. For this reason, there is little damage to the film or sheet on the front and back sides, and this is a preferable form in terms of appearance design.
[0031]
In the above, the straight convex stripes 21, the linear concave stripes 22, and the upper chord curve concave stripes 23 can all be formed by embossing.
[0032]
The present invention is not limited to the above-described embodiments, and various modifications can be considered without departing from the technical scope of the present invention, and the various embodiments related thereto are included.
[0033]
【The invention's effect】
According to the invention of claim 1, the side seal portion on the lower side of the nozzle is pushed by the lip of the refill destination container, so that the concave streak and the vicinity thereof are inserted into the nozzle inward and the convex streak is the center. The outward bending is formed, and the opening of the nozzle is good. When the side seals on both sides of the nozzle are pushed in a straight direction approaching each other by the lip of the refill destination container, the pair of front and back concave stripes and the vicinity thereof are inserted inward of the nozzle. Since the nozzle is inserted into the mouth of the refill destination container so that the side seal portion is on the lower side, the side seal portion may fall down due to the mouth of the refill destination container. In the case of a refill destination container having a small mouth, the side seal portion may fall down due to the mouth edge of the refill destination container. In that case, the concave streaks on the collapsed side and the vicinity thereof are inserted into the nozzle, and the nozzle is opened favorably. Furthermore, the convex streak is formed in a straight line, and the concave streak is a convex streak with a length shorter than the length of the side seal from the tip of the nozzle toward the root of the side seal below the nozzle. When the tip of the nozzle is pushed by the mouth edge of the refill destination container, the spout part is easier to open than the rear part thereof, and as a result, Good dispensing is achieved.
[0036]
According to the invention of claim 2, when the side seal portion below the nozzle is pushed by the mouth of the refill destination container to form an outward bend around the convex streaks, A trough is formed along the concave streaks of the upper chord curve that bulges, and the opening of the root portion of the nozzle is improved.
[0037]
The liquid storage container with a nozzle according to the present invention can achieve a good opening of the nozzle by preventing the nozzle from being blocked by the adhesion of the front and back films or sheets without forming a complicated folding line as described in the prior art. For this reason, there is little damage to the film or sheet on the front and back sides, and this is a preferable form in terms of appearance design.
[Brief description of the drawings]
FIG. 1 is a front view of a liquid container with a nozzle according to the present invention.
FIG. 2 is a perspective view of a nozzle portion of the present invention.
FIG. 3 is an explanatory diagram of a change state of a nozzle portion according to the present invention.
FIG. 4 is a cross-sectional view of a convex emboss formed on the nozzle of the present invention.
FIG. 5 is an explanatory diagram of a liquid refill state of the liquid storage container with a nozzle according to the present invention.
6 is a cross-sectional view taken along the line AA in FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Liquid container 2 ... Surface material 3 ... Back material 4 ... Bottom material 5 ... Peripheral joining seal part 6 ... Joining seal part 7 ...・ Liquid storage part 8... Nozzle 9... Spout part 10... Upper side part 11 ... Left side part 12 ... Right side part 13 ... Bottom part 14 ··· Corner portions 15A, 15B ··· Side seal portion 16 ··· Upper side portion side recess 17 · · · Side side portion side recess 17A · · · Bottom seal portion 18 of side side portion side recess ··· .... Nozzle side wall 20 ...... Notch 21 ... Convex line 22 ... Concave line 23 ... Concave line

Claims (2)

The upper side of the pair of front and back plastic films or sheets, the left and right side parts, and the peripheral part surrounding the bottom part are sealed to form a liquid storage part inside, and one side of the upper side part and the left and right side parts In a liquid storage container with a stand-up nozzle in which a liquid pouring nozzle is formed by side seals on both sides so as to face obliquely upward at a corner with the upper part and the lower part is swollen and the upper part is narrowed, and the relative position of the back surface, a linear convex muscle inflating the central portion of the nozzle from the tip of the nozzle in a path toward said liquid accommodating portion outwards, the lower side of the convex muscle A concave streak that is recessed inward in a path from the tip of the nozzle toward the liquid storage portion is formed only in the nozzle portion, and the concave streak is formed on the side seal below the nozzle from the tip of the nozzle. Root of Headed nozzle with the liquid container, wherein a distance between the convex muscle with a length shorter than the length of the side seals are formed to be gradually increased. A concave streak of an upper chord curve that is recessed inwardly in a path from the vicinity of the base portion of the side seal below the convex muscle to the liquid storage portion in the extended lower part of the convex muscle is characterized in that The liquid storage container with a nozzle according to claim 1 .

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