KR20110086450A - Dual compartment pouch having pressure-openable non-seam line and heat sealing mould there for - Google Patents

Abstract

PURPOSE: A double pouch including a pressure-openable non-seam line, and a heat sealing mold for manufacturing thereof are provided to store two different contents with differing properties in two receiving units. CONSTITUTION: A double pouch including a pressure-openable non-seam line includes a pressure opening unit, a non-seam unit, and long and short non-seam lines. The pressure opening unit(10) is formed on the center of an inner seam line(4). The non-seam unit(16) is formed on the center of the pressure opening unit in a round-triangle or semicircular shape. The long non-seam line(18) connects a first receiving unit(6) and the non-seam unit. The short non-seam line(20) connects the non-seam unit and a second receiving unit.

Description

Dual pouch having pressure-openable non-seam line and heat sealing mold there for

The present invention relates to a double pouch having two housing portions for accommodating two kinds of liquid contents separately, in particular having a pressure-opening non-junction line having a configuration capable of mixing the two kinds of liquid contents contained before opening. A double pouch and a heat sealing mold suitable for its manufacture.

The pouch is equipped with an accommodating part which is isolated from the outside by thermally compressing two films, and has excellent waterproofness and airtightness, and can be easily processed into a certain form.It is mainly used for packing liquid detergents, lotions, drugs, and beverages. It is becoming.

Conventionally, pouches are employed to accommodate a single component liquid, but separate liquids, or liquids and powders of different components into one pouch, such as US Patent Publication No. 2004/0079763, duplex storage pouches, It is also known as a pouch having a structure in which the stored contents can be mixed by pressing and opening between the compartments separated in use.

Known duplex storage pouches have an enclosure divided into a seam that is partitioned into a serrated seam, which means that when one of the enclosures is pressurized from the outside, the portion is ruptured while the pressure is concentrated at the vertex of the sawtooth. This type of pouch is effective for packaging liquids that must be separated and accommodated before use, with a slight viscosity, for example, hair colorants and oxidants.

In the duplex storage pouch, when the user presses the pouch by hand, the boundary between the compartments of the two compartments is described as opening, but in practice, the opening of the vicinity of the vertex has a problem in that it is inconvenient. In other words, the pressure that the user presses on the compartment is not concentrated at any one point, but is evenly distributed throughout the interior of the compartment, so even if an adult presses it with force, the local pressure applied to the vertex of the seam is not so great that it can be easily opened. none.

In order to find a solution of the prior art described above, the present inventors include one or more triangular-shaped small spaces having vertices in a junction line forming a boundary between two separate compartments, so that a specific portion of the junction line is located in another portion. A double pouch with a weak bonding force has been proposed as Korean Utility Model Registration Application No. 20-2009-0000590.

The double pouch proposed by the present inventors is a structure in which the joint line is formed as a weak part with a weaker bonding force than the adjacent part due to a significantly narrowed joint area at a specific part, but even when formed as a weak part, Discomfort to pressurized still could not be resolved.

[Document 1] United States Patent Application Publication No. 2004/0079763, FIG. [Document 2] Korea Utility Model Application No. 20-2009-0000590, Fig. 1

SUMMARY OF THE INVENTION An object of the present invention is a double pouch configured to accommodate contents of different components in two separate compartments, wherein a static load applied when a specific portion of a joint line forming a boundary of the compartment is applied during transportation or storage. It is intended to provide a double pouch with a non-bonded line that is not opened, but is pressurized to open only to a dynamic load such that the user presses with a slight force.

Another object of the present invention is to provide a heat-sealing mold suitable for the manufacture of a double pouch having a non-bonded line that is pressurized to form the above-mentioned non-bonded line to a specific portion of the bonded line forming the boundary of the receiving portion formed in the double pouch. In providing.

The double pouch of the present invention, which achieves the above-mentioned object, has a liquid content in which the edges are heat-sealed with an external seam and the middle thereof is heat-sealed with an internal seam, thereby forming first and second compartments separately partitioned. And a pressurized opening portion at approximately an intermediate portion of the inner junction line, while the non-junction of the rounded triangle or semi-circle is joined by the first branch junction line and the second branch junction line extending in two from the inner junction line. The non-bonded portion and the non-joint portion are formed so as to be formed inside the pressure-opening portion and to form a long non-bonded line communicating between the first storage portion and the non-bonded portion in the middle of the first branch junction line. A short non-junction line communicating between the two storage portions is formed.

In the present invention having the above-described configuration, the pressing opening portion may be further formed with a pair of joint support lines extending from the inner junction line to form an acute angle, in which case the first branch junction line and the second branch junction line are respectively It is configured to extend in two divided from the joint support line.

In the configuration of the present invention as described above, the width of the first branch junction line and the second branch junction line is preferably formed in a narrow width corresponding to 1/3 of the inner junction line.

The length of the long non-bonded wire is preferably 5 to 7 mm, and the short non-bonded wire is preferably 0.5 to 0.7 times the length of the non-bonded portion.

The heat-sealing mold for manufacturing the double pouch of the present invention described above is provided with a thermocompression pad on one mold and heat-sealing the outer bond line and the inner bond line on two sheets to form two separate housing portions, and the opposite mold. In the heat-sealing mold provided with a linear heater, the thermal compression pad comprises a first branch junction pad and a second branch junction pad corresponding to the first branch junction line and the second branch junction line, wherein the pad The branch bonding pad and the second branch bonding pad may be implemented in a configuration in which long cutouts and short cutouts are formed to form long non-bonded lines and short non-bonded lines, respectively.

In addition, a long heat sink and a short heat sink for forming a long non-bonded line and a short non-bonded line, respectively, may be implemented in the thermocompression pad, eliminating long cuts and short cuts.

The double pouch of the present invention can separately accommodate liquid contents such as hair dyes and oxidants that must be separately packaged prior to use in the first and second storage compartments.

The pressurized opening part disposed between the first and second accommodating parts has a structure that double-blocks the non-bonded part located between the first and second accommodating parts by a long non-bonded line and a short non-bonded line, thereby preventing the static load. It is effective to completely block the liquid contents of the first and second storage parts from being mixed.

Since the long non-bonded line and the short non-bonded line are actually unbonded portions, the two types of components accommodated in the first and second storage units are different from each other by being easily opened due to the dynamic load generated by the user pressing the first storage unit with an appropriate force. Allow the liquid contents to be mixed.

BRIEF DESCRIPTION OF THE DRAWINGS The front view which shows the structure concerning one Example of the double pouch which concerns on this invention.
FIG. 2 is an enlarged view of a main portion “A” of FIG. 1.
3 is an enlarged cross-sectional view taken along line III-III of FIG. 2;
4 is a front view showing a configuration according to another embodiment of the double pouch according to the present invention.
5 is an enlarged view of a main portion “B” of FIG. 4.
6 is a partial perspective view showing an example of a heat-sealing mold capable of producing the double pouch of the present invention.
7 is a schematic view showing a step of manufacturing a double pouch according to the present invention.
8 is a partial perspective view showing another example of a heat-sealing mold capable of producing the double pouch of the present invention.

Hereinafter, the present invention will be described in detail with reference to the preferred embodiments.

The double pouch according to the present invention is sealed by an outer seam line 2 which seals the edges, as shown in FIG. 1, and is separated by an inner seam line 4 which is heat sealed substantially across the middle. The first storage part 6 and the second storage part 8 divided into two parts are provided.

The first and second storage parts 6 and 8, which are divided into two parts, have a liquid content having a slightly viscous liquid content such as a hair colorant and an oxidant, which should not be mixed before use. Is accepted.

In addition, the pressurization opening part 10 is provided in the middle of the inner joint line 4 which forms a boundary between both storage parts 6 and 8.

As shown in FIG. 2, the pressure opening 10 is a rounded triangular or semi-circular shape formed by a first branch junction line 12 and a second branch junction line 14 extending in two from the inner junction line 4. The non-joining part 16 is included, and the long non-bonded line 18 and the short non-bonded line 20 are respectively interposed in the middle of the said 1st branch junction line 12 and the 2nd branch junction line 14, respectively.

Here, it is preferable that the width of the first and second branch joint lines 12 and 14 is about one third of the internal joint line 4 so as to have a weaker bonding force than other portions.

The double pouch of the present invention bonds the outer bond line 2 and the inner bond line 4 with a width of 6 mm or 7 mm as in the conventional pouch, and thus the first and second branch bond lines 14 and 16 are connected. Has a width of 2 mm.

Referring to the cross-sectional structure of the long non-bonded line 18, as shown in FIG. 3, the first branch-bonded line 12 adjacent to both sides is integrally sealed, whereas the long non-bonded line 18 is formed of two films. It is formed into a simple overlapping structure.

That is, the long non-bonded line 18 dissolves the surface due to the influence of the ambient temperature atmosphere maintained in the range of 200 to 275 ° C. during the heat sealing process, but since the part is not pressed by the heater, the inside is not integrally sealed and overlapped. After cooling by heat-sealing, it is difficult to distinguish apparently from the first branch joint line 12 which is integrally sealed. In reality, however, the interior is not sealed but is only abutted, so that it is opened when a dynamic load is applied, and the short non-bonded line 20 of the second branch junction line 14 is also the same structure, but only shortened in length.

The long non-bonded line 18 and the short non-bonded line 20 formed in the above-described structure are always open at the first branch junction line 12 and the second branch junction line 14, respectively, but the first and second storage portions ( The liquid contents contained in 6) cannot pass through here themselves and cannot be mixed together.

More specifically, the long non-bonded line 18 and the short non-bonded line 20 are stuck together without any gaps by the force of static electricity according to the properties of the material from the beginning of formation, so that the user remains closed unless the user presses the pouch from the outside. I'm doing it.

On the other hand, in the double pouch of the present invention, the external force acting as the first storage unit 6 and the second storage unit 8 is a dynamic load applied by the user, and when stacked for transport or storage, This is the static load that the pouch will receive.

Since the static load acts on both the first storage part 6 and the second storage part 8 from the outside, the inside of the pouch disperses the pressure and the first storage part 6 and the second storage part 8. Due to the pressure balance between the long non-bonded line 18 and the short non-bonded line 20 acts with a weaker force than the static electricity to maintain the closed state is not opened.

However, since the long non-bonded line 18 has a relatively long length, leakage may occur due to the action of the static load, so that the liquid contents of the first accommodating part 6 may flow into the non-bonded part 16. In addition to being blocked by the short non-bonded line 20 again inside the junction 16, as the leaked liquid content is filled into the interior of the non-junction 16, the non-junction 16 is inflated as if in blister form. Since the action of tensioning the non-bonded line 18 and the short non-bonded line 20 is exhibited, the static load does not open between the first and second storage portions 6 and 8.

Therefore, even if stacked for transport or storage, the opening between the first storage portion 6 and the second storage portion 8 by itself does not occur to mix the liquid contents.

On the other hand, if the long non-bonded line 18 of the first branch junction line 12 communicating between the first storage portion 6 and the non-bonded portion 16 is set too long, it is difficult to maintain a close contact state, so that It is necessary to be limited, and according to the experiments of the present inventors, the length in which the first accommodating part 6 can be opened to an extent that the adult presses lightly with the palm is suitable in the range of 5 to 7 mm.

When the length is 8 mm or more, when the pouches are stacked, the liquid contents of the first accommodating part 6 are not bonded to each other even under the action of the static load by the weight of the upper pouch. This is not preferable because rare cases of leaking are found, and on the contrary, when the length is 4 mm or less, the user opens the power only by double the pressing force.

In addition, the length of the short non-bonded line 20 is relatively short so that the liquid content cannot normally pass and can be opened only by applying a dynamic load, and in the present invention, the long non-bonded line formed in the first branch junction line 12 ( The range of 0.5-0.7 times of 18) was optimal.

Here, if the short non-bonded line 20 is less than 0.5 times of the long non-bonded line 18, the user presses the force to be doubled to open it, and at 0.8 times or more, the leakage preventing action is not stable, and a static load accompanying an external impact is applied. Problems with ground leakage are not uncommon.

The double pouch of the present invention showed the desired action when the long non-bonded line 18 was set to 6 mm and the short non-bonded line 20 was set to 3.5 mm.

The double pouch of the above-described configuration is performed by the user pressing the first housing 6 with a finger or a palm from the outside when the contents are mixed.

When the user presses the first receiving part 6, the liquid content contained therein generates pressure, and the pressure at this time becomes a dynamic load, acting on the long unbonded line 18 of the pressure opening 10 to open it. do.

In other words, the long non-bonded line 18 passes the liquid contents to the non-bonded portion 16 each time the user presses the first receiving portion 6, and soaks into the non-bonded portion 16 by repeating this operation. The contained liquid contents are pushed into the second storage part 8 while being opened to the short non-junction line 20 and mixed.

As described above, the double pouch of the present invention opens the long non-bonded line 18 and the short non-bonded line 20 under the action of a dynamic load generated by a force exerted by the user. Although the 2nd storage part 8 is the structure which communicates, it does not open by the static load which a pouch of a lower side receives when it piles up and down for transportation or storage.

That is, since the static load applied acts evenly throughout the inside of the first and second accommodating portions 6 and 8, the static load applied acts at a pressure sufficient to open the long non-junction line 18. Since there is little, the liquid content does not enter the 2nd storage part 8 and generate mixing.

On the other hand, there may also be cases in which a strong static load is momentarily applied due to an external shock during transportation, but in this case only the long non-bonded line 18 is opened, and between the non-joined portion 16 and the second storage portion 8. As the double is blocked by the short joint line 20 again, even if the momentary change of the static load occurs, the opening of the long non-bonded line 18 is possible even though the short non-bonded line 20 is opened. Do not.

Therefore, the liquid contents of the first storage part 6 and the second storage part 8 cannot be mixed even if an external impact is applied during transportation.

The double pouch according to the present invention is not limited to the above-described example, but may be implemented as shown in FIG. 4.

In this embodiment, the pressurization opening 10 further comprises a pair of bond support lines 22 extending upwardly and acutely extending at the same width in the inner bond line 4.

At the vertices where these joint support lines 22 abut, the first branch junction line 12 and the second branch junction line 14 having a narrow width extend in the same manner as in the above embodiment to form a rounded triangular or semi-circular non-junction 16. The long non-bonded line 18 and the short non-bonded line 20 are provided in the middle of these 1st branch junction line 12 and the 2nd branch junction line 14, respectively.

In such a configuration, the portion where the joining support line 22 is formed has a stronger hardness than its periphery, so that the first branch joining line 14 is provided with tension from both sides by the joining support line 22, and furthermore, the joining line 22 is provided. As the space between the support lines 22 becomes a concave portion in the first storage portion 6, the liquid contents remain in the unfilled vacuum portion, thereby maintaining a tightly adhered state, and thus, the bonding support lines 22. Tensioned long non-bonded line 18 has a stronger adhesion compared to the structure of the above-described embodiment that is not so that it can withstand open without a large static load.

Therefore, the double pouch of this embodiment can more clearly accommodate the liquid contents than the double pouch of the above-described embodiment.

In addition, the pair of support lines 22, which is the characteristic structure of this embodiment, are strong because they act as a passage for guiding the liquid contents, which cause pressure when the user presses the first housing 6, to the long non-bond line 18. Even though the adhesive force is provided, the opening between the first storage part 6 and the second storage part 8 is facilitated.

That is, the double pouch of this embodiment can be pressed by the user with the thumb or palm to concentrate the pressure inside the joint support line 22 of the pressure opening 10, the dynamic load caused by the liquid content received by this operation is It is effective to the long non-bonded line (18).

The double pouch of the present invention described above can be implemented through the heat sealing mold shown in FIG.

The heat-sealed mold shown in FIG. 4 and 5 can produce a double pouch of the embodiment, and the portion corresponding to the pressure opening 10 has one mold 10a and the opposite mold 10b corresponding thereto. ) To enlarge.

One mold 10a has a pad for thermal compression, and the other mold 10b has a linear heater for heat sealing in the same shape, and the pad of one mold 10a has an internal joint line 4. A first branch corresponding to the first branch joint line 12 and the second branch junction line 14, respectively, an inner bonding pad 40a corresponding to the joint bonding pad 220a forming the joint supporting line 22. The bonding pad 120a and the second branch bonding pad 140a are included. The first branch bonding pad 140a and the second branch bonding pad 140a include the long non-bonded wire 18 described above. The long cutout 180a and the short cutout 200a are provided to form a short non-bonded line 20, and the linear heater includes an inner joining line 40b and a joining support line forming an inner joining line 4. 22 and the first branch forming the first branch junction line 12 and the second branch junction line 14, respectively. The sum includes a line (120b) and the second branch joint line (140b).

The heat sealing mold having such a configuration is mounted on the heat sealing apparatus in the same manner as a conventional pouch manufacturing method to produce a double pouch of the present invention.

Figure 7 shows a manufacturing process for producing a double pouch of the present invention, the film forming the pouch is supplied between the two heat sealing molds (10a) (10b) in the state that the two sheets overlap and the sealing portion is in the range of 200 ~ 275 ℃ Primary heat-sealed by heating to

Although the 1st accommodating part 6 and the 2nd accommodating part 8 mentioned above are formed by primary heat sealing, one side of these accommodating parts 6 and 8 is formed unsealed.

The nozzle (N) is inserted through the unsealed portion to inject the liquid contents to be stored, and if the contents are left for a long time, the contents may be deteriorated.

In FIG. 7, the injection of the liquid contents and the secondary heat sealing process thereafter are shown separately. However, this is for convenience of description and in practice, both molds are formed when the injection of the liquid contents is completed and the nozzle N is removed. (10a) (10b) is closed, the secondary heat sealing is in progress.

The heat-sealing mold suitable for manufacturing the double pouch of the present invention is not limited to the structure of FIG. 6, but is bonded to the internal joining line 40b in the mold 10b having a linear heater as shown in FIG. 8. Long portions for forming the long non-bonded line 18 and the short non-bonded line 20 at a portion extending to the support line 220b and then leading to the first branch junction line 120b and the second branch junction line 140b. By installing the heat sink 180b and the short heat sink 200b, the corresponding part may not be dissolved during heat sealing.

In the double pouch of the present invention, the non-junction portion 16 installed in the pressure opening 10 is not limited to one place but may be arranged in plural as described above. It is possible to more completely block the gap between the housing 6 and the second housing 8.

2: external seam 4: internal seam
6: first storage unit 8: second storage unit
10: pressure opening 10a: one side mold
10b: opposite mold 12: first branch joint line
14: second branch junction line 16: non-junction
18: long non-bonded line 20: short non-bonded line
22: bonding support line 40a: pad for internal bonding
40b: internal bonding line 120a: first branch bonding pad
120b: first branch junction line 140a: second branch junction pad
140b: 2nd branch joining line 180a: long notch
180b: long heat sink 200a: short cutout
200b: short heat sink 220a: pad for bonding support
220b: joint support line

Claims (6)

A first accommodating part 6 and a second accommodating part 8 in which edges are heat-sealed by the outer joining line 2 and approximately middle portions are heat-sealed by the inner joining line 4 to accommodate liquid contents having different components;
A pressure opening part 10 formed at an approximately middle portion of the inner joint line 4;
The non-junction 16 is formed in a rounded triangle or semi-circle at the center of the pressure opening 10 by the first branch junction line 12 and the second branch junction line 14 extending in two from the inner junction line 4. ;
An elongated non-junction line 18 provided in the middle of the first branch junction line 12 and serving as a path for communicating between the first storage unit 6 and the non-junction unit 16;
A short non-bonded line 20 provided in the middle of the second branch junction line 14 and serving as a passage communicating between the non-bonded portion 16 and the second storage portion;
Pouch with pressurized open seam in a configuration with The method according to claim 1,
The pressure opening 10 further includes a pair of joint support lines 22 extending from the inner junction line 4 to form an acute angle, and the first branch junction line 12 and the second branch junction line 14 Double pouch having a pressure-opening non-bonded line, characterized in that each is configured to extend divided into two in the bonded support line (22). The method according to claim 1 or 2,
The pressure-opening non-junction line is characterized in that the width of the first branch junction line 12 and the second branch junction line 14 is formed to be narrow to a width corresponding to 1/3 of the internal junction line 4. Double pouch with The method according to claim 1 or 2,
The length of the long non-bonded line 18 of the pressure opening 10 is 5 ~ 7mm, the short bonded line 20 is characterized in that the configuration is set to 0.5 ~ 0.7 times the length of the long non-bonded line 18. Double pouch with a non-bonded wire that is pressurized to open. In the heat-sealing mold in which the heat-bonding pads are provided on one mold and the linear heater is installed on the opposite mold in order to heat seal the outer bond line and the inner bond line on the two sheets to form two separate housing portions.
The thermal crimp pads have an internal bonding pad 40a corresponding to the internal bonding line 4, a bonding support pad 220a forming the bonding support line 22, and a first branch bonding line 12 and a second branch, respectively. And a first branch bonding pad 120a and a second branch bonding pad 140a corresponding to the branch junction line 14, and the first branch bonding pad 140a and the second branch bonding pad 140a. ) Is suitable for the manufacture of a double pouch having a pressure-opening non-junction line of the configuration in which the long cutout 180a and the short cutout 200a are respectively installed such that the long non-bonded line 18 and the short non-bonded line 20 are formed. Heat seal mold. In the heat-sealing mold in which the heat-bonding pads are provided on one mold and the linear heater is installed on the opposite mold in order to heat seal the outer bond line and the inner bond line on the two sheets to form two separate housing portions.
The linear heater includes a joint support line 220 to form a joint support line 22 in the internal joint line 40, and first and second branch joint lines 12 and 18 extending from the internal joint line 40. And a first non-junction line (160) and a second bifurcation line (180) that form a cross section between the long non-junction line (18) and the second non-junction line (180). A heat-sealing mold suitable for the manufacture of a double pouch having a pressurized open non-junction line of a configuration in which a long heat sink 200a and a short heat sink 220a for forming a seam line 20 are respectively provided.

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