Three-zone dual-compartment dry-humid gas separation bag

Abstract

The utility model discloses a three area double storehouse formula dry and wet gas separation bag relates to cosmetic packing technical field. The separation bag main part includes the first chamber for containing liquid, the second chamber for containing dry powder and empty chamber, and three chambers are in triangle arrangement, and the first chamber is side by side with the second chamber on, and the empty chamber is semicircular, is set in the below of first chamber and second chamber, is provided with the edge sealing between three chambers and divides, is provided with the first edge sealing between the first chamber and the second chamber, and is provided with the second edge sealing between the first chamber and the second chamber and the empty chamber, and the width of second edge sealing is less than the width of first edge sealing. The utility model not only can realize the dry and wet mixture of commodity under the condition that outer package is unopened, and the second edge sealing between the empty chamber and the first chamber and the second chamber is thin and easy to break through, and the liquid and dry powder in the first chamber and the second chamber can be mixed by pressing the empty chamber, and the mixing is easier and the effect is better.

Description

Technical Field

[0001] This utility model relates to the field of cosmetic packaging technology, specifically to a three-zone, dual-compartment dry and wet air separation bag. Background Technology

[0002] Most existing cosmetic packaging bags directly package the mixed liquid without separating the dry and wet components. However, mixing liquid and dry powder too early in some cosmetics can easily affect product quality and shelf life. Therefore, in order to improve product quality and shelf life, it is necessary to separate the dry and wet components during the packaging stage.

[0003] To address this issue, dry-wet separation bags have been proposed, which divide cosmetic packaging bags into multiple areas. Narrow sealing strips are installed on the separators between each area so that the dry and wet parts can be mixed by squeezing the packaging bag, thereby effectively improving product quality.

[0004] However, existing wet and dry separation bags have several drawbacks. First, they require significant external force to connect the various chambers, and there is a problem of incomplete mixing of wet and dry materials, which can easily lead to waste. Second, once opened, they cannot guarantee the isolation effect between the inside of the bag and the outside air. Utility Model Content

[0005] To address the aforementioned issues, this utility model discloses a three-zone, dual-compartment dry-wet separation bag. This bag not only enables the mixing of dry and wet products when the outer packaging is unopened, but also features a thinner, more easily perforated second seal between the cavity and the first and second compartments. By pressing the cavity, liquids and dry powders from the first and second compartments can enter the cavity for mixing, resulting in easier and better mixing.

[0006] According to the purpose of this utility model, a three-zone, dual-compartment dry and wet air separation bag is proposed, comprising a separation bag body. The separation bag body includes a first chamber for holding liquid, a second chamber for holding dry powder, and an empty chamber. The three chambers are arranged in a triangular pattern, with the first and second chambers side by side on top, and the empty chamber being semi-circular and located below the first and second chambers. The three chambers are separated by sealing edges. A first sealing edge is provided between the first and second chambers, and a second sealing edge is provided between the first and second chambers and the empty chamber. The width of the second sealing edge is smaller than the width of the first sealing edge.

[0007] Preferably, the side of the second sealing edge closest to the cavity is wavy, and the width of the narrowest part of the second sealing edge is one-seventh to one-sixth of the width of the first sealing edge.

[0008] Preferably, the second chamber has an easy-tear notch on its side.

[0009] Preferably, a sealing strip is provided on the inner side of the tear-off notch, and the sealing area divided by the sealing strip is triangular.

[0010] Preferably, the main body of the separation bag is made of a composite film, and the inner surface of the PET film in the composite film is provided with a PE easy-tear film, which is disposed on the inner side of the separation bag; the thickness of the PET film is 12μm-14μm, and the thickness of the PE easy-tear film is 95μm-99μm.

[0011] Compared with the prior art, the advantages of the three-zone dual-compartment dry and wet air separation bag disclosed in this utility model are:

[0012] (1) This utility model can not only achieve dry and wet mixing of goods when the outer packaging is not opened, but also the second sealing edge between the cavity and the first and second cavities is wavy, thin and easy to break, making mixing easier; at the same time, the cavity is set so that the liquid and dry powder in the first and second cavities can enter the cavity for mixing by pressing the cavity, resulting in a better mixing effect.

[0013] (2) The separation bag has an easy-tear notch on the side of the second chamber containing the dry powder, which makes it convenient to open the bag and obtain the mixture inside. It can also guide the user to squeeze the mixture out of the first chamber, thereby improving the utilization rate of the dry powder.

[0014] (3) The separation bag is also equipped with a sealing strip inside the tear-off notch. After the user finishes using the product once, the sealing strip can isolate the contents of the bag from the outside air, thereby improving the storage effect of the bag. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0016] Figure 1 This is a structural diagram of a three-zone, dual-compartment dry and wet air separation bag disclosed in this utility model.

[0017] Figure 2 This is a cross-sectional view of the main body of the separation bag.

[0018] In the diagram: 1-Separation bag body; 11-PET film; 12-PE easy-tear film; 2-First chamber; 3-Second chamber; 4-Empty chamber; 5-First sealing edge; 6-Second sealing edge; 7-Easy-tear notch; 8-Sealing strip; 9-Sealing area. Detailed Implementation

[0019] The specific embodiments of this utility model will be briefly described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0020] Figures 1-2 A preferred embodiment of the present invention is shown and analyzed in detail.

[0021] like Figure 1 The illustrated three-zone, dual-compartment dry / wet separation bag includes a main body 1. The main body 1 comprises a first chamber 2 for holding liquids, a second chamber 3 for holding dry powders, and a hollow chamber 4. The three chambers are arranged in a triangular pattern, with the first chamber 2 and second chamber 3 side-by-side at the top, and the hollow chamber 4 located below them. Separating edges are provided between the three chambers. A first seal 5, formed by heat pressing, is provided between the first chamber 2 and second chamber 3, and a second seal 6, formed by heat pressing, is provided between the first chamber 2 and second chamber 3 and the hollow chamber 4. This allows the main body 1 to simultaneously package two mixed products that are not easily stored for long periods but are better suited for mixed use.

[0022] The cavity 4 is designed to allow the liquid and dry powder from the first and second chambers 2 and 3 to mix by pressing the cavity 4, resulting in better mixing. Specifically, the cavity 4 is semi-circular. Firstly, the semi-circular design is more aesthetically pleasing; secondly, according to gas dynamics, the semi-circular sealing edge allows for complete penetration of the second sealing edge 6 during extrusion. When the sealing edge curvature R ≥ 3mm, the stress distribution is reduced by 40-60%. Under the same conditions, when the peak stress of a right-angle sealing edge reaches 25MPa, the corner cracks, while when the peak stress of a rounded corner sealing edge reaches 10MPa, uniform deformation is achieved. Simultaneously, during heat sealing of the second sealing edge 6, V-shaped microgrooves with a depth of 0.1-0.3mm are set near the cavity 4 to promote uniform air pressure diffusion. The groove spacing follows the formula:

[0023]

[0024] Where E is the elastic modulus, v is Poisson's ratio, t is the film thickness, and Pmax is the maximum working air pressure. During production, the injection air pressure in chamber 4 must be strictly controlled. An inert gas with a stable coefficient of thermal expansion is used. Depending on the packaging volume, a 5-10% expansion space is reserved. For example, for a 1L gas space with a temperature difference of 50℃, we will reserve 9.2% (1*0.00367*25) of expansion space. This avoids the gas from breaking the seal due to thermal expansion and contraction caused by external temperature changes. Furthermore, by controlling the air pressure, we can ensure that only a large pressure applied manually at the center of chamber 4 can break the second seal 6. Moreover, during transportation, the separation bags must be placed in a packaging box to prevent accidental damage.

[0025] The second sealing edge 6, near the cavity 4, is wavy. The narrowest point of the second sealing edge 6 is one-sixth the width of the first sealing edge 5, while the widest point is the same width as the first sealing edge 5. The second sealing edge 6 is designed as a "weak point," with a rupture pressure far lower than that of the separation bag body 1 and the first sealing edge 5. Thus, when the internal air pressure reaches the weak point rupture value, the second sealing edge 6 will break first, releasing the pressure and preventing it from rising further to the rupture threshold of the separation bag body 1 and the first sealing edge 5. In addition to the width difference between the sealing edges, we also achieve the above effect by using different sealing strengths for different sealing edges: the second sealing edge 6 uses a weak heat seal with a sealing strength of 1-2 N / 15 mm, while the separation bag body 1 and the first sealing edge 5 use a strong heat seal with a sealing strength of 3-5 N / 15 mm or higher. This ensures that the second seal 6 will not break when the bag body 1 and the first seal 5 are separated by squeezing open the seal. The second seal 6 can be broken by squeezing the lower cavity 4, so that the substances in the first cavity 2 and the second cavity 3 can be mixed, that is, the dry and wet products can be mixed when the outer packaging is not opened.

[0026] The second chamber 3 has an easy-tear notch 7 on its side. The easy-tear notch 7 makes it easy for the user to tear open the seal of the separation bag body 1, so that the user can easily get the items inside the separation bag body 1. It can also guide the user to squeeze out the mixture from the second chamber 3, thereby improving the utilization rate of the dry powder and the ease of use of the bag.

[0027] A sealing strip 8 is provided on the inside of the tear notch 7. The sealing strip 8 divides the sealing area 9 into a triangle. After the user has used the product once, the contents of the bag can be isolated from the outside air, thus improving the storage effect of the bag.

[0028] like Figure 2As shown, the separation bag body 1 is made of a composite film, and the inner surface of the PET film 11 in the composite film is provided with a PE easy-tear film 12. When the composite film is made into the separation bag body 1, the PE easy-tear film 12 is located inside the separation bag body 1. The thickness of the PET film 11 is 13μm, and the thickness of the PE easy-tear film 12 is 96μm. Such a composite film is not only easy to heat seal, but also relatively easy to be peeled off.

[0029] The main body of the separation bag 1 is made of light-proof material, which is beneficial for the storage of substances that need to be protected from light.

[0030] The above description of the disclosed embodiments enables those skilled in the art to make and use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit and scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A three-zone, dual-compartment dry and wet gas separation bag, comprising a separation bag body (1), characterized in that, The main body (1) of the separation bag includes a first chamber (2) for holding liquid, a second chamber (3) for holding dry powder, and an empty chamber (4). The three chambers are arranged in a triangle. The first chamber (2) and the second chamber (3) are side by side on top, and the empty chamber (4) is semi-circular and located below the first chamber (2) and the second chamber (3). The three chambers are separated by sealing edges. A first sealing edge (5) is provided between the first chamber (2) and the second chamber (3), and a second sealing edge (6) is provided between the first chamber (2), the second chamber (3), and the empty chamber (4). The width of the second sealing edge (6) is smaller than the width of the first sealing edge (5).

2. The three-zone, dual-compartment dry and wet gas separation bag according to claim 1, characterized in that, The second sealing edge (6) is wavy on the side near the cavity (4), and the width of the narrowest part of the second sealing edge (6) is one-seventh to one-sixth of the width of the first sealing edge (5).

3. The three-zone, dual-compartment dry and wet gas separation bag according to claim 1, characterized in that, The second chamber (3) has an easy-tear notch (7) on its side.

4. A three-zone, dual-compartment dry and wet gas separation bag according to claim 3, characterized in that, A sealing strip (8) is provided on the inner side of the tear-off notch (7), and the sealing area (9) divided by the sealing strip (8) is triangular.

5. A three-zone, dual-compartment dry and wet gas separation bag according to claim 1, characterized in that, The separation bag body (1) is made of composite film, and the inner surface of the PET film (11) in the composite film is provided with PE easy-tear film (12), which is set on the inner side of the separation bag; the thickness of the PET film (11) is 12μm-14μm, and the thickness of the PE easy-tear film (12) is 95μm-99μm.

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