JP3728988B2 - Liquid packaging container - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a liquid packaging container.
[0002]
[Problems to be solved by the invention]
Conventionally, in liquid packaging containers, the front sheet and the back sheet are pouch-type ones that are heat-sealed, and the front sheet and the back sheet are opposed to each other, and the bottom sheet is interposed on the bottom side of the container It is called a standing pouch type that spreads at the bottom of the container by separating the bottom side of the front sheet and the bottom side of the back sheet so that the bottom of the container is heat-sealed and the bottom sheet at the bottom of the container is expanded. There is something. And there are products that contain liquid detergent, rinse, shampoo, etc. in such packaging containers, which are now offered as products for refilling the contents in bottle containers, such as the pouch type and the standing pouch type In order to make it easy to pour the contents from the spout formed by cutting when the contents are poured from the packaging container into the bottle container, for example, as shown in Japanese Utility Model Laid-Open No. 5-72775, Protruding strips that maintain the open state are provided on the sheet, or as shown in JP-A-10-338249, a container is folded to form a tapered pouring portion with the spout portion as the tip. It has been proposed to do.
[0003]
By the way, in order to form the spout in the pouch-type packaging container or the standing-type packaging container, it is necessary to cut the upper corner of the container so as to be cut off obliquely, but the cutting operation was performed. At the time, as shown in FIG. 4, there is a problem that the cut c is likely to be forked in the width direction of the front sheet a and the back sheet b, and an appropriate spout cannot be formed. Even if a notch is formed to make it easy to create the starting edge of the tear, the tear proceeds in the width direction, and the above-mentioned problem has not been solved. Further, since the pressure is applied to the container side by holding the container storage portion during the tearing operation, the contents may jump out when tearing.
Therefore, in view of the above problems, the present invention has an object to provide a packaging container in which an appropriate pouring port can be easily formed, with the object of making the cut appropriately inclined when forming the pouring port. Is.
[0004]
[Means for Solving the Problems]
The present invention has been made in consideration of the above problems, and is a packaging container in which a storage space is formed between a front sheet and a back sheet, and one of the upper parts of the container in which the upper seal part and the side seal part are continuous. When the front sheet and the rear sheet are folded at a folding position inclined from the corner toward the container bottom , the notch is provided in each of the upper seal part and the side seal part so as to be close to the corner of the container. A liquid packaging container , wherein the notch of the upper seal part and the notch of the side seal part are arranged symmetrically with respect to the folding position so that the notch of the upper seal part and the notch of the side seal part overlap. Provided to solve the above problems.
Then, in the present invention, disconnection instruction lines shown from top notch SL upper seal portion to span the notch of the side seal portion, bent at the position of the container bottom side than at the straight line connecting the two notches directly It is good to have.
[0005]
DETAILED DESCRIPTION OF THE INVENTION
Next, the present invention will be described in detail based on the embodiment shown in FIGS.
In the figure, reference numeral 1 denotes a liquid packaging container. The packaging container 1 forms a storage space between the front sheet 2 and the back sheet 3 facing each other, and a bottom surface between the front sheet 2 and the back sheet 3 at the bottom of the container. In a state where the sheet 4 is folded, the opposite sides are heat-sealed. On the bottom side of the container, the central portion of the bottom sheet 4 is opened and the space between the lower side of the front sheet 2 and the lower side of the back sheet 3 is It is a standing pouch type that can be separated and independent.
In the liquid packaging container 1, each of the upper seal part 5 and the side seal part 6 is arranged so that the upper seal part 5 and the side seal part 6 are close to one corner 7 of the upper part of the container. Is provided with a notch 8. Also, at least one of the front sheet 2 and the back sheet 3 is shown with a folding position 9 that is inclined from the corner toward the container bottom, and the front sheet 2 and the back sheet 3 are moved at the folding position 9. Both notches 8 are arranged symmetrically with respect to the folding position 9 so that the notch 8 of the upper seal portion 5 and the notch 8 of the side seal portion 6 overlap when folded. Thus, since both notches 8 are symmetrically arranged with respect to the folding position 9, the upper part of the container can be tapered with the corner 7 side as a protruding end by folding the notches 8 so as to overlap. When starting to tear from the overlapped notch 8 at the time of cutting, the distance L from the notch 8 to the folded portion is shortened, so that the direction of tearing from the notch 8 can be easily determined, and the distance is Due to its short length, the cuts are hardly divided into two forks.
[0006]
Furthermore, as shown in the drawing, a cutting instruction line 10 is provided that represents a portion to be cut from the notch 8 of the upper seal part 5 through the folding position 9 to the notch 8 of the side seal part 6, This cutting instruction line 10 is shown as a broken line bent at a position closer to the bottom of the container than a position 11 of a straight line directly connecting both notches 8. Since the cutting instruction line 10 is provided in this way, as described above, one corner portion (side on which the spout is formed) from the folding position 9 is folded in half so that the notch 8 overlaps, and the notch 8 The spout is formed by tearing along the cutting instruction line 10. Then, in such a state that one corner portion of the upper portion of the container is folded in half and starting to tear while holding the container center side from the cutting instruction line 10, pressure is temporarily applied to the storage space side of the container. Even if it is, the contents are not popped out because it holds the folded part on one corner side.
[0007]
Although the notch 8 in the above embodiment is shown as being cut out in a substantially V shape in the drawing, the present invention is not limited to this, for example, as shown in FIG. Alternatively, the notch 8 may be cut into a substantially U shape (A), or may be cut into an I shape (B).
[0008]
【The invention's effect】
As described above, according to the liquid packaging container of the present invention, it is a packaging container in which a storage space is formed between the front sheet and the back sheet, and the container in which the upper seal part and the side seal part are continuous. A notch is provided in each of the upper seal portion and the side seal portion so as to be close to one corner of the upper portion, and the front seat and the rear seat are placed at a folding position inclined from the corner toward the container bottom. The notch of the upper seal part and the notch of the side seal part are arranged symmetrically with respect to the folding position so that the notch of the upper seal part and the notch of the side seal part overlap when folded. Yes, by aligning the notch of the upper seal part with the notch of the side seal part, the corner part forming the spout part can be folded in half, and the tear distance in the folded state is shortened and pulled. Together easily determine the direction when the tear, cut edges also eliminates open wide bifurcated. Further, it is possible to align the notch of the upper seal portion and the notch of the lower seal portion easily by a simple operation that folds from in fold position.
Then, if the cutting instruction line shown extending from the notch of the upper seal part to the notch of the side seal part is bent at a position on the container bottom side from the position of the straight line directly connecting both notches, The length of the cut edge of the spout is increased, the opening area of the spout can be increased, the contents can be poured out smoothly, and the like, which has an excellent practicality effect. .
[Brief description of the drawings]
FIG. 1 is an explanatory view showing an example of a liquid packaging container according to the present invention.
FIG. 2 is an explanatory diagram showing a state in which an example is folded from a folding position.
FIG. 3 is an explanatory view showing another example of a notch.
FIG. 4 is an explanatory view showing a problem state when forming a spout in a conventional example.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Liquid packaging container 2 ... Front sheet 3 ... Back sheet 4 ... Bottom sheet 5 ... Upper seal part 7 ... Corner part 8 ... Notch 9 ... Folding position 10 ... Cutting instruction line

Claims (2)

A packaging container in which a storage space is formed between a front sheet and a back sheet, wherein the upper seal part and the side seal part are adjacent to one corner of the upper part of the container, and the upper seal part A notch is provided in each of the side seal portions, and when the front sheet and the back sheet are folded at the folding position inclined from the corner toward the container bottom, the notch of the upper seal portion and the notch of the side seal portion are A liquid packaging container , wherein the notch of the upper seal part and the notch of the side seal part are arranged symmetrically with respect to the folding position so as to overlap . The cutting instruction line shown so as to extend from the notch of the upper seal part to the notch of the side seal part is bent at a position on the container bottom side from a position of a straight line directly connecting both notches . Packaging container for liquid.

Images