MX2012004246A

MX2012004246A - A packaging pouch with tearing portion.

Info

Publication number: MX2012004246A
Application number: MX2012004246A
Authority: MX
Inventors: Xiaohai Lu
Original assignee: Johnson & Son Inc S C
Priority date: 2009-10-10
Filing date: 2010-10-09
Publication date: 2012-06-27
Also published as: EP2485963A4; BR112012008434A2; WO2011041987A1; CN201770147U; EP2485963A1

Abstract

The present utility model provides a packaging pouch for storing and diluting liquid. The packaging pouch comprises an outer bag and an inner bag. The outer bag has a sealable opening and a spout, and the inner bag has a sealable feed-in opening for feeding content in and a sealed edge portion. The inner bag is positioned within the outer bag. The feed-in opening of the inner bag and the opening of the outer bag are aligned with each other and sealed together. The packaging pouch is characterized in further comprising a tearing portion which is formed between the outer bag and the sealed edge portion of the inner bag, and the tearing portion includes: at least two contiguous welded spots, one welded spot being welded to an internal wall of the outer bag on one side, and the other welded spot being welded to an internal wall of the outer bag on the opposite side; and at least one prefabricated slide opening which is provided between two contiguous welded spots and formed on the sealed edge portion, a length of the prefabricated slide opening being less than a width of the sealed portion. The packaging pouch of the present utility model is advantageous in simple structure, good stability and low cost.

Description

PACKAGING BAG WITH DESPENDABLE PORTION Field of the Invention The present utility model relates to a packaging bag and, more particularly, a packaging bag for containing concentrated liquid and serving as a container for diluting the concentrated liquid to a ready-to-use concentration.

Background Technique Recently, more and more liquid products, for example, detergent, disinfectant and insecticide, are sold in high concentrations and need to be diluted before use. This will save storage volume and thus save the costs of reservations and transportation and then the product price may be lower, when compared to those products sold in a ready-to-use concentration. However, in order to dilute the product to a usable concentration, consumers need to use additional containers. This would be non-economic and the product may stain during dilution. Additionally, it can be difficult to control the amount of water added. Thus, consumers may not be interested in such concentrated products because it seems problematic to use them.

To facilitate the dilution of the product, the simplest way is to provide a packing bag large enough to accommodate both the concentrated product and the diluent. However, when the concentrated product is corrosive, the material of the entire large packing bag must be resistant to chemical products and thus the cost to the bag would be high.

In this situation, the "combined internal and external bag" becomes a good selection, in which an inner bag containing the concentrated product is sealed in an external bag. The external bag can be filled with diluent through a spigot before the dilution of the product. Under certain conditions, the inner bag can tear open by external forces, and the product concentrated therein flows outward and mixes with the diluent in the outer bag to dilute the product. In this case, only the inner bag, whose size is smaller, needs to be made of expensive material resistant to chemical products and the material of the outer bag needs merely to be resistant to the diluted product. With this structure, the packaging bag can serve as a container for diluting the contents therein. At the same time, the cost of the material l is low.

There are some "combined internal and external bag packages" existing in the prior art. Commonly, the inner bag is designed with some weak areas which can be broken by external forces when needed. For example, patent application No. C No. 1 096264A has described a plurality of cameras, with each chamber containing a different liquid. One of the cameras has a weak area on its side wall, the weak area that includes a dotted line and a lid that covers the dotted line. External forces applied from the outer wall can cause the lid to break or fall. Then, the camera tends to tear to open along the dotted line so that the liquid in that chamber comes out and mixes with a different liquid outside. However, this area is disadvantageous because each chamber of the package is always filled with liquid and thus the weak area always tends to break with any applied external force. Therefore, such a package may be unstable during transport and transfer and may possibly be damaged before being sold.

The Chinese patent of utility model No. CN2230299Y describes another package, with a portion welded with heat in the inner bag, which is the weak area. The impact force applied on the outer bag can cause the heat-welded portion to break. Several implementations are provided in this patent. For example, the inner bag is provided with a seal against outward flow with a web at its center and a plug with a rod with a ball in the web or, alternatively, a cone is provided whose point fits to the side wall of the web. the inner bag. Obviously, the aforementioned forms are also unstable during transport and transportation.

The patent application of U. S. No. 20070084736A 1 discloses a storage bag comprising an inner bag and an outer bag, both containing liquid. The peripheral portion of the inner bag is welded to the back wall of the outer bag and the inner bag, in its middle portion of a small area, is welded to the front wall of the outer bag and thus forms an opening portion. . When needed, the user can press the opening portion of the inner bag along a suitable direction from the outside of the outer bag to break the inner bag. Compared with the two above-mentioned inventions, this storage bag can be more stable in transport and transfer, but at the same time, it can be difficult to break the inner bag by the user. The outer bag may possibly break if the direction of pressing is not correct.

To meet the requirement for industrial use, the packaging bag can be sufficiently stable because it can be subject to shocks and pressures during transport, when they are stacked one over the other in warehouses and when they are moved by customers to another place for their use, in the state of containing product concentrated in them. At the same time, the inner bag should be easy to break when the user wants to dilute the product. However, as for the "internal and external bag combination package" of the prior art, either the tear portion is very weak and thus the package is unstable, or the tear portion is firm, but inconvenient to use so that it is not easy to break open the inner bag when the user wants to dilute the product. Therefore, there is a need for a packaging bag that can overcome the aforementioned disadvantages of the prior art.

Brief Description of the Invention The crux of the prior art is that the state of the packaging bag can not be changed, that is, each chamber or each of the inner / outer bags always contains liquid. In this condition, if the tear portion is sufficiently weak, the package is easy to use, but not stable; otherwise, if the tear portion is firm, the package is inconvenient or stable. It can be seen, in the existing package, that the degree of convenience and the stability of the package are mutually exclusive and such a package can not be both convenient and stable.

The present utility model resolves the aforementioned conflicts through the provision of improvements in the following two aspects. First, a spout is provided in the packaging bag according to the present utility model, so that the condition of the packaging bag can be changed, that is, keeping the outer bag of the packaging bag empty during operation. transport and storage and inject diluent into the outer bag through the spigot before using r. In this way, the state of the packaging bag is changed. Accordingly, based on the fact that the state of the packaging bag can be changed, a novel tearing portion is provided in the internal bag in the present utility model. With this tearing portion, the inner bag tends not to tear open when the outer bag is empty and will tear easily to open when the outer bag expands due to the injected water. By this means, the packing bag of the present utility model resolves the conflicts between stability and convenience. The present packaging bag is both stable and convenient. Furthermore, since only the inner bag contains the contents during transport and storage, and the outer bag is not filled with diluent until the use of the product, the volume of the packaging bag and the product are greatly reduced. Therefore, not only the material costs for the packaging bag are saved, but also the transport and storage costs.

One of the objects of the present utility model is to provide an improved packing bag comprising an inner bag and an outer bag, wherein the inner bag tends not to tear to open when the outer bag is empty and will tear easily to open when the external bag expands due to the injected water.

Another objective of the present utility model is to provide an improved packing bag to contain concentrated liquid and serve as a container for diluting the concentrated liquid.

The packaging bag according to the present utility model comprises an outer bag with a sealable opening and a spout and an inner bag with a sealable feed opening for feeding the contents and a salted edge portion, wherein the The inner bag is positioned inside the outer bag, the inner bag feeding opening and the opening of the outer bag are aligned with each other and sealed together, the packaging bag is characterized in that it further comprises a tearing portion which is form between the outer bag and the sealed edge portion of the inner bag, the tearing portion including at least two adjacent welding points, a solid welding point that is welded to an inner wall of the outer bag on one side and the other welding point that is welded to an inner wall of the outer bag on the opposite side; and at least one prefabricated slide opening that is provided between two contiguous welding points and formed in the sealed edge portion, a length of each prefabricated slide opening that is less than a width of the sealed portion.

In the packaging bag according to the present utility model, the tearing portion may be disposed in sealed edge portions at any one or more edges except the edge that includes a feed opening. Preferably, the aforementioned tearing portion of the packaging bag is disposed at a sealed edge portion on the edge opposite the edge that includes the feed opening of the inner bag.

In a preferred embodiment of the present utility model, the tearing portion includes three contiguous welding spots and two prefabricated slide openings, which are arranged continuously at the same edge.

In addition, the spigot is a two-way spout for injecting and discharging liquid.

When the packaging bag is used to contain highly concentrated and corrosive liquid, the material of the inner bag can be very resistant to chemicals and the material of the outer bag can be resistant to the diluted corrosive liquid.

Brief Description of the Drawings Figure 1 shows a diagram of a packaging bag according to an embodiment of the present utility model; Figure 2 shows a construction of an inner bag of the packaging bag shown in Figure 1; Figure 3 shows a construction of an outer bag of the packaging bag shown in Figure 1; Figure 4 shows a condition of the packaging bag of Figure 1, which contains content in the inner bag; Figure 5 shows a state of the packaging bag shown in Figure 1, with the content therein that has already been diluted, Figure 6 shows a diagram of a packaging bag according to another embodiment of the present utility model; Figure 7 shows a diagram of a packaging bag according to still another embodiment of the present utility model; and Figure 8 shows a diagram of a packaging bag according to still another embodiment of the present utility model.

Detailed description of the invention Now, the packing bag of the present utility model will be described in detail by way of example, with reference to the drawings.

One embodiment of the packaging bag according to the present utility model is shown in Figure 1. To illustrate the construction of individual parts of the packaging bag clearly, the outer bag and the inner bag are shown in Figures 2 and 3 separately. In this mode, the content to be contained in the internal bag is concentrated and corrosive liquid and the diluent is water. The inner bag is made of material with good chemical resistance, the material can be, for example, but not limited to, PE film. This is provided only as an example, and those skilled in the art can readily understand that various known materials can be used alternately and the inner bag can be single-ply material or multi-ply material, wherein the multi-ply material -layer can be composed of different materials. The inner bag 1 can take the form of a rectangle, as shown in Fig. 2. The inner bag 1 is sealed on three sides. The remaining side of the inner bag 1 has a sealable opening (ie, feed opening 1 1) for feeding contents to the inner bag in the sequence process. A sealed edge portion, with a width d, is formed at the bottom edge 1 2 opposite the edge having the feed opening. A tear portion is formed in the sealed edge portion, which can be easily torn to open vertically (ie, along the direction perpendicular to the bottom edge 1 2).

Figure 3 shows the construction of the external bag 2 in the present embodiment. In this embodiment, the outer bag 2 can take the rectangular shape, with three sides sealed and the remaining side formed with an opening 21. On the side having the opening 21, a corner of the rectangle is replaced by a spout 3 for injecting diluent and discharging the diluted product. A sealed lid can be provided in the spout 3. Preferably, the bottom of the outer bag 2 can include a folded and expandable portion and the bottom can expand to a certain degree when filled with liquid. When it expands, the outer bag 2 can be stopped vertically. Alternatively, the two sides and the bottom part of the outer bag 2 can be folded and expandable to increase their volume.

As shown in Figure 1, the inner bag 1 is disposed within the outer bag 2 and the feed opening 1 1 of the inner bag 1 is aligned with the opening 21 of the outer bag 2. A portion of the bag torn is disposed at the bottom edge 1 2 of the inner bag 1. The tear portion includes welded points and prefabricated slide openings, wherein each prefabricated slide opening is disposed between two welding points. In this embodiment, the tearing portion includes three contiguous welding pockets and two prefabricated slide openings, which are arranged continuously on the sealed edge portion of the inner bag, where one of the openings of The prefabricated slide is provided between the first and second contiguous welding points and the other of the prefabricated slide openings is provided between the second and third contiguous welding points. As shown in Figure 1, the welded points 4a, 4b and 4c are disposed at the center of the bottom edge 1 2 of the inner bag 1. Between them, the points 4a and 4c of the inner bag 1 are welded on the back wall inside the outer bag 2 (i.e., the back side of the outer bag shown in Figures 1 and 3) and the welded point 4b which is positioned between the welded points 4a and 4c is welded on the front wall of the outer bag 2 (ie, the front side of the outer bag shown in Figs. 1 and 3). In practical applications, the number and position of the soldiers can be changed as required, as long as every two adjacent soldiers are welded on opposite walls of the outer bag 2. Between every two welded points, there are arranged in a prefabricated sliding opening. As shown in FIG. 1, a prefabricated slide opening 5a is disposed between the welded points 4a and 4b and a prefabricated slide opening 5b is disposed between the welded points 4b and 4c. The length of each of the slit openings 5a and 5b is less than a width d of the edge portion sealed at the bottom edge 1 2 of the inner bag 1. That is, initially, the slit openings 5a and 5b are shorter than the width of the sealed edge portion of the bottom edge 1 2 and thus the contents of the inner bag 1 can not leak into the outer bag 2. Those Those skilled in the art will understand that, in the packaging bag made with the above technique and process, there is a vacuum between the inner bag and the outer bag. The air will not enter the outer bag 2 before the spout 3 opens. This should be understood quickly and thus the details are omitted herein.

In the factory, when the present packaging bag is used to pack the product to be sold, the product is fed into the inner bag 1 through the feed opening 1 1. Then, the feed opening 1 1 of the inner bag 1 is aligned with the opening 1 2 of the outer bag 2 and are sealed together.

These openings can be sealed by heat welding, but not limited to that. Thus, the product is sealed in the packing bag before leaving the factory. Figure 4 shows the state of the packaging bag with sealed contents in the inner bag 1, wherein the level 6 of liquid illustrates the content sealed therein.

When the user wants to use the product, he can open the seal cover of the two-way spigot 3, injecting water through the two-way spout into the outer bag 2. Preferably, the outer bag 2 can be transparent. It is marked and marked with a scale with numbers or marks that indicate the amount of water necessary to dilute the contents of the internal bag. Alternatively, it can be designed in such a way that the necessary amount of water is the total charge of the outer bag 2. The user can close the seal cap after the injection of water to seal the packing bag. At that time, the outer bag 2 expands due to the injected needle, so that the distance between the front wall and the rear wall of the outer bag 2 is enlarged. As described above, the welded points 4a and 4c of the inner bag 1 are welded on the back wall inside the outer bag 2 and the welded point 4b is welded on the front wall inside the outer bag 2, while the Prefabricated slide ports 5a and 5b are provided between those welded points. At this time, a strip formed between the prefabricated slide openings 5a and 5b is pulled towards the front net in the outer bag 2, while the other part of the bottom edge 1 2 of the inner bag is welded to the front pocket. rear wall inside the outer bag 2 and so it is immovable. In this state, when the user holds the corners of the outer bag 2 and agitates the packaging bag, the inner bag 1 will break to open at the edge of the prefabricated slide openings 5a and 5b by the flow pulse of the bag. water (illustrated by 5a and 5b in Fig. 5). In the meantime, when the user agglomerates the packaging bag, the contents flowing from the inner bag 1 mix with the water of the outer bag 2 and thus it is diluted. Figure 5 shows diagrammatically the state of the packaging bag that the contents thereof have been diluted, wherein the level of the liquid indicates the amount of the liquid diluted in the external bag. Then, the user can distribute some of the diluted liquid through the two-way spout 3 and close the spout 3 with the seal cap to preserve the remaining dilute liquid for future use.

The packaging bag according to the present utility model has been described with reference to the specific embodiment mentioned above, but those skilled in the art will understand that, according to the principle of the present utility model, the shapes of the bag internal and external bag do not have to be rectangular and can be designed as different forms. Different modes of the packaging bag, according to the present utility model, are illustrated in Figures 6 to 8. As shown in Figures 6 to 8, the inner bag and the outer bag may have different shapes and the spigot may be arranged in different positions in the outer bag. What is common with the embodiment shown in Figure 1 is that the feed opening of the inner bag is aligned with the opening of the outer bag and sealed together and the welded spots are alternately arranged with the prefabricated slide openings to constitute the tearing portion. The present utility model is not limited to the aforementioned embodiment and the shapes illustrated in the drawings, obviously many modifications and variations are possible in view of the previous teaching. The inner bag or the outer bag can have any shape selected from the group of rectangle, polygon, round, ellipse, irregular shapes or any combination thereof and which will not go beyond the scope of the present utility model. In addition, the number and positions of the welded points and the prefabricated slide openings of the tear portion can be changed as required. For example, the number of welded points can be reduced to two, with a prefabricated slide opening disposed between them; or alternatively, the number of welded points on a sealed edge portion may be four or more than four, with a prefabricated slide opening disposed between each two welded points, to increase tear opening points to ensure that the inner bag is open by torn easily. Currently, the sealed portion and the sealing portion can be disposed at any edge of the inner bag except for the edge having the feed opening.

From the above embodiments, it can be seen that when the packaging bag, according to the present utility model, is under the condition of containing product (as shown in Figure 1), no force is applied to the tearing portion. of the inner bag along the prefabricated slide openings because there is a gap between the outer bag and the inner bag. Therefore, the packing bag is stable.

In addition, it is very convenient to use the present packaging bag to dissolve the contents inside the inner bag, that is, to inject water into the packaging bag, hold the strands and shake the packaging bag. Then, dilute liquid is obtained and mixed homogeneously.

The present utility model prevents the liquid from leaking from the inner bag to the outer bag before the inner bag tear open since the tear portion has no dotted line or a similar structure.

The present utility model is advantageous because the inner bag tends to tear open when the outer bag is emptied and is easy to tear open when the outer bag expands after being injected with water. The packaging bag of the present utility model is also advantageous because of the simple structure, good stability and low cost. As for costs, only the inner bag is made of material with good chemical resistance because the inner bag makes contact directly with the concentrated product and the outer bag material merely needs to be resistant to the diluted product. Thus, the present packaging bag is cost-saving.

The packing bag according to the present model of Utility can be used as packaging for, for example, but not limited to, household cleaners (such as floor cleaners, bathroom cleaners, kitchen cleaners and etc.), disinfectants, insecticides and etc.

Claims

1. A packing bag comprising an outer bag with a sealable opening and a spout and an inner bag with a sealable feed opening for feeding contents and a sealed edge portion, wherein the inner bag is positioned within the outer bag, the The opening of the inner bag and the opening of the outer bag are aligned with each other and sealed together, the packing bag characterized in that it also comprises a tearing portion that is formed between the outer bag and the sealed edge portion of the inner bag, the tearing portion that includes: at least two adjoining welded points, a welded point that is welded to an inner wall of the outer bag on one side and the other welded point that is welded to an inner wall of the outer bag on the opposite side; Y at least one prefabricated slide opening that is provided between two adjoining welded points and formed in the sealed edge portion, a length of each prefabricated slide opening that is less than a width of the sealed portion.

2. The packaging bag of claim 1, wherein the tearing portion includes three contiguous welded points that are continuously arranged on the sealed edge portion of the inner bag and two prefabricated slide openings, wherein one of the openings of prefabricated slide is provided between the first and second adjacent welded points and the other of the Prefabricated slide openings are provided between the second and the third adjacent welded points.

3. The packaging bag of claim 2, wherein the sealed portion of which the tear portion is provided is positioned on a side opposite to the feed opening of the inner bag.

4. The packing bag of claim 1, wherein the spout is a two-way spout for injecting and discharging the liquid.

5. The packaging bag of claim 4, further comprising a dye injected into the outer bag through the two-way spout.

6. The packaging bag of one of claims 1 to 5, wherein the material of the inner bag is of good chemical resistance.

7. The packaging bag of claim 1, further comprising the contents fed into the intgerna bag. SUMMARY The present utility model provides a packing bag for storing and diluting liquid. The packing bag comprises an outer bag and an inner bag. The outer bag has a sealable opening and a spout and the inner bag has a sealable feed opening for feeding content and a sealed edge portion. The inner bag is positioned inside the outer bag. The feed opening of the inner bag and the opening of the outer bag are aligned with each other and sealed together. The packaging bag is characterized in that it further comprises a peelable portion that is formed between the outer bag and the sealed edge portion of the inner bag and the peelable portion includes: at least two adjacent welded pieces, one point of weld It is welded to the inner wall of the outer bag on one side and the other welding point that is welded to an inner wall of the outer bag on the opposite side; and at least one prefabricated slide opening that is provided between two contiguous welded points and formed in the sealed edge portion, a length of the prefabricated slide opening that is less than a width of the sealed portion. The packaging bag of the present utility model is advantageous for its simple structure, good stability and low cost.