JP6686422B2 - Pouch - Google Patents

Description

  The present invention relates to a pouch provided with a pouring nozzle. This pouch can be used, for example, as a refilling pouch for refilling and refilling an empty bottle or the like after consuming the content.

  A pouch for refilling a bottle or the like after consuming the contents is well known by the name of a pouch for refilling. This pouch is generally an inexpensive bag made of a flexible film and has a nozzle that can be inserted into the mouth of a bottle or the like in a part thereof. By inserting this nozzle into the mouth of a bottle or the like, the contents can be refilled into the bottle or the like without spilling.

  Among such refilling pouches, the one having the simplest structure is one in which films on the front and back are superposed and a seal line is provided on the peripheral edge thereof, and a nozzle is provided on the upper corner portion. This nozzle is also formed by sealing the front and back films. That is, seal lines are provided on both sides of an elongated nozzle, and the region sandwiched by the seal lines is used as a content pouring nozzle. In addition, the tip of the nozzle is usually sealed and hermetically sealed, and the planned cutting line is arranged here. The pouch can open the nozzle by cutting from the planned cutting line.

  By the way, in the pouch having such a simple structure, the film on both sides of the nozzle may be blocked during the refilling operation of the contents. In order to prevent such blockage, a pouch in which an emboss is provided on the film on both sides of the nozzle or a spacer is arranged is also known.

  On the other hand, there is also known a pouch in which the position of the blockage generated during the refilling work is inspected and the planned cutting line is arranged at a position closer to the content storage chamber than the blockage position (Patent Document 1). In this pouch, the seal lines on both sides of the nozzle are composed of a nozzle side seal line near the nozzle tip and a shoulder seal line. The inner end line of this nozzle side seal line and the shoulder seal line The base line is a straight line connecting the midpoints with the inner end line of, and the vertex is a right angled triangle. is doing. Therefore, in this pouch, the nozzle is not clogged during the refilling operation of the contents because the clogged position is cut and removed when cutting from the planned cutting line.

JP 2000-6991 A

  In the pouch described in Patent Document 1, the seal lines on both sides of the nozzle are composed of a nozzle side seal line near the nozzle tip and a shoulder seal line, and inner end lines and shoulders of the nozzle side seal line. A right-angled triangle is drawn based on the midpoint between the inner end line of the part seal line and the inner end line of the nozzle side seal line and the inner side of the shoulder seal line in order to identify such an intermediate point. Both the end lines must be drawn as straight lines. That is, in the pouch of Patent Document 1, the inner end line of the nozzle side seal line and the inner end line of the shoulder seal line are both straight lines, and the inner end lines intersect each other. There is a need. On the other hand, when the inner end line of the nozzle side seal line or the inner end line of the shoulder seal line is curved and smoothly bent, the midpoint cannot be determined. There was a problem that the closed position could not be found.

  Therefore, the present invention is a pouch in which the nozzle side seal line and the shoulder seal line forming the seal lines on both sides of the nozzle draw a curved line and are smoothly bent, and the nozzle generated during the pouring operation An object of the present invention is to provide a pouch that does not cause blockage of the pouch.

That is, in the invention according to claim 1, the front and back films are sealed at their peripheral edges to provide a seal line, and the content accommodating chamber and the dispensing nozzle are arranged inside the seal line. In the pouch being
The seal line has a lower seal line and left and right side seal lines, and an upper planned seal line at the upper part. These lower seal line, left and right side seal lines, and upper planned seal line. The enclosed area is used as a content storage room,
The upper part of the left seal line bends toward the inside of the pouch to form the left shoulder seal line.A curve is drawn from the tip of this left shoulder seal line toward the upper left corner of the pouch. It constitutes the seal line on the left side of the nozzle,
There is a shoulder upper seal line below the planned upper seal line, and a curve is drawn from the left tip of the shoulder upper seal line toward the upper left corner of the pouch to bend over the nozzle upper part. It constitutes a seal line,
The area sandwiched between the seal line on the left side of the nozzle and the seal line on the left side of the nozzle is the nozzle,
The nozzle is provided with a planned cutting line for cutting including the nozzle left side seal line and the nozzle upper side seal line,
Moreover, the intersection of the inner edge of the upper seal line and the inner edge of the right side seal line is defined as point A, and the tangent line tangent to the inner edge of the shoulder upper seal line from this point A is defined as the upper tangent line p. , A point on the inner end edge of the left side seal line and located at the center between the inner end edge of the upper seal line and the inner end edge of the lower seal line is point B, and from this point B the shoulder portion With the tangent line tangent to the inner edge of the left seal line as the left tangent line q, the planned cutting line passes through the intersection r between the upper tangent line p and the left tangent line q, or passes through a position closer to the content storage chamber than the intersection point r. It is a pouch characterized by being arranged as follows.

  Next, the invention according to claim 2 is the pouch according to claim 1, characterized in that it has a tip seal line for sealing the tip of the nozzle.

  The invention according to claim 3 is the pouch according to claim 1 or 2, characterized in that a notch is provided continuously to the planned cutting line.

  In the present invention, without utilizing the midpoint between the inner end line of the nozzle side seal line and the inner end line of the shoulder seal line, the inner end edge of the upper planned seal line and the inner end edge of the right side seal line are used. Point A, the point on the inner edge of the shoulder upper seal line, the point on the inner edge of the left side seal line, which is located in the center between the upper planned seal line and the lower seal line. By using the inner edge of the left seal line, the intersection r can be identified as the closed position.

  Therefore, even in the pouch in which the nozzle side seal line and the shoulder seal line forming the seal lines on both sides of the nozzle are curved smoothly and curved, the closing position (intersection point r) can be specified. Since the planned cutting line passes through this closing position (intersection point r) or passes through a position closer to the contents storage chamber than the closing position (intersection point r), the nozzle is not blocked during the pouring operation. Does not happen.

FIG. 1 is a plan explanatory view of a specific example of the present invention.

  The pouch of the present invention is one in which the front and back films are sealed at their peripheral edges to provide a seal line, and the content accommodating chamber and the pouring nozzle are arranged inside the seal line. .

  Any plastic film can be used as the front and back films. Further, a film having a multi-layer structure including a plastic film in its layer structure may be used. Also, the pouch of the present invention may be in any form. For example, it is a four-sided seal bag, a standing pouch, or the like. Hereinafter, the present invention will be described with reference to the drawings by taking a four-sided seal bag as an example. FIG. 1 of the drawings is an explanatory plan view thereof.

  As shown in FIG. 1, the pouch 100 is provided with a seal line on the periphery. Each of these seal lines is formed by heat sealing the front and back films to each other.

  The heat seal line is composed of a number of parts, and a part of the heat seal line is the lower seal line a1 arranged at the lower part of the pouch 100. A right side seal line a2 is arranged on the right side of the pouch 100, and a left side seal line a3 is arranged on the left side. The upper right side of the upper portion of the pouch 100 is an expected upper sealing line a4 without a sealing line, and the upper sealing line can be formed by heat sealing after filling the contents from this opening. As can be seen from this description, the area surrounded by the lower seal line a1, the left and right side seal lines a2, a3, and the upper planned seal line a4 is the content storage chamber 1.

  The pouring nozzle 2 is located at the upper left corner of the pouch 100. That is, the left side seal line a3 described above is bent upward toward the inside of the pouch to form a shoulder left seal line b1. The shoulder left seal line b1 is bent toward the upper left corner of the pouch, that is, at the tip of the shoulder left seal line b1 to form a nozzle left side seal line b2. In this bent portion, the seal line draws a smooth curve, and the inner end line of the seal line also draws a smooth curve.

  On the other hand, on the right side of the planned upper sealing line a4, there is a shoulder upper sealing line c1 below the planned upper sealing line a4, that is, at a position close to the contents storage chamber. Further, the nozzle upper side seal line c2 is arranged so as to be bent at the left end of the shoulder upper seal line c1 and from here toward the upper left corner of the pouch. Also in this bent portion, the seal line also draws a smooth curve, and the inner end line of the seal line also draws a smooth curve.

  The elongated area sandwiched between the nozzle left side seal line b2 and the nozzle upper side left seal line c2 is defined as the nozzle 2.

  Further, a tip seal line d is arranged at the tip of the nozzle 2 so that the contents of the contents container 1 are not poured from the nozzle 2. The nozzle 2 is provided with a planned cutting line 3 that crosses the nozzle 2 including the nozzle left side sealing line b2 and the nozzle upper side sealing line c2. By doing so, the tip of the nozzle 2 can be opened and the contents can be poured out. In this example, a notch 4 is provided continuously to the planned cutting line 3 for convenience of cutting. The planned cutting line 3 can be composed of a half-cut line. It may be solid or dashed. Further, although the V notch is used as the notch 4 in this example, other notches may be used. For example, I notch. Further, a notch formed by many scratches may be used.

  It is important that the planned cutting line 3 is arranged at a position determined by the following method.

  That is, first, the intersection point between the inner edge of the upper planned seal line a4 and the inner edge of the right side seal line a2 is set to point A. A tangent line passing through this point A and in contact with the inner edge of the shoulder upper seal line c1 is defined as an upper tangent line p.

  On the other hand, a point on the inner end edge of the left side seal line a2, which is located at the center between the inner end edge of the upper planned seal line a4 and the inner end edge of the lower seal line a1, is designated as point B. A tangent line passing through this point B and in contact with the inner edge of the shoulder left seal line b1 is defined as a left tangent line q.

  In the pouch 100, the position where the pouch 100 is closed during the pouring operation can be represented by an intersection r between the upper tangent line p and the left tangent line q. In this example, the planned cutting line 3 is arranged so as to pass through a position closer to the content storage chamber than the intersection r, and therefore, when the cutting is performed from the planned cutting line 3, the closed position (intersection r) is cut and removed. Therefore, the nozzle is not blocked during the refilling operation of the contents.

  The planned cutting line 3 may be arranged at a position passing through the closed position (intersection point r). Even in this case, there is virtually no blockage during the refilling work. Desirably, the planned cutting line 3 passes through a position closer to the content storage chamber than the intersection r.

100: Pouch 1: Content storage part 2: Nozzle 3: Planned cutting line 4: Notch a1: Lower sealing line a2: Right side sealing line a3: Left side sealing line a4: Upper sealing line b1: Shoulder left sealing line b2: Nozzle left side sealing line c1: Shoulder upper side sealing line c2: Nozzle upper side sealing line d: Tip sealing line r: Closing position

Claims (3)

The pouch in which the film on the front and back is sealed at the periphery thereof and a seal line is provided, and in which the content storage chamber and the pouring nozzle are arranged inside the seal line,
The seal line has a lower seal line and left and right side seal lines, and an upper planned seal line at the upper part. These lower seal line, left and right side seal lines, and upper planned seal line. The enclosed area is used as a content storage room,
The upper part of the left seal line bends toward the inside of the pouch to form the left shoulder seal line.A curve is drawn from the tip of this left shoulder seal line toward the upper left corner of the pouch. It constitutes the seal line on the left side of the nozzle,
There is a shoulder upper seal line below the planned upper seal line, and a curve is drawn from the left tip of the shoulder upper seal line toward the upper left corner of the pouch to bend over the nozzle upper part. It constitutes a seal line,
The area sandwiched between the seal line on the left side of the nozzle and the seal line on the left side of the nozzle is the nozzle,
The nozzle is provided with a planned cutting line for cutting including the nozzle left side seal line and the nozzle upper side seal line,
Moreover, the intersection of the inner edge of the upper seal line and the inner edge of the right side seal line is defined as point A, and the tangent line tangent to the inner edge of the shoulder upper seal line from this point A is defined as the upper tangent line p. , A point on the inner end edge of the left side seal line and located at the center between the inner end edge of the upper seal line and the inner end edge of the lower seal line is point B, and from this point B the shoulder portion With the tangent line tangent to the inner edge of the left seal line as the left tangent line q, the planned cutting line passes through the intersection r between the upper tangent line p and the left tangent line q, or passes through a position closer to the content storage chamber than the intersection point r. A pouch characterized by being arranged like.   The pouch according to claim 1, further comprising a tip seal line that seals the tip of the nozzle.   The pouch according to claim 1 or 2, wherein a notch is provided continuously to the planned cutting line.

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