A stand-up pouch with a flow guiding function

Abstract

This utility model relates to the field of stand-up pouches, specifically a stand-up pouch with a flow-guiding function. The utility model includes a stand-up pouch body with a shaped spout at its upper left corner. The front and back of the spout are provided with laser-cut easy-tear lines and flow-guiding embossing, which extend to the front and back of the stand-up pouch body. The flow-guiding embossing on the front and back protrudes outward to form a flow-guiding groove. This stand-up pouch with flow-guiding function is widely applicable to liquid packaging. Its size can be customized according to customer needs. It is easy to pour and allows for smooth liquid discharge. Compared to welded spout stand-up pouches, this mechanism does not require additional packaging components. Its process is simple, its effect is good, and its cost is not significantly increased, giving it strong market competitiveness.

Description

Technical Field

[0001] This utility model relates to the field of stand-up pouches, and specifically to a stand-up pouch with a flow guiding function. Background Technology

[0002] Stand-up pouches are a common type of flexible packaging bag, widely used in various fields such as food and daily chemicals due to their excellent display and portability. Depending on the usage scenario, stand-up pouches have also evolved into various types, such as zipper stand-up pouches, spout stand-up pouches, and irregularly shaped spout stand-up pouches. Among them, irregularly shaped spout stand-up pouches are mainly used for refill packs, and their spout-like design makes it easy to inject product into the bottle opening.

[0003] To accommodate bottle openings of different sizes, the opening size of the irregular nozzle needs to be designed to be narrow, which restricts the flow channel of the liquid, resulting in a slow flow rate and requiring repeated force to squeeze the bag to squeeze out the liquid; the stand-up pouch is made of soft film material, and during the squeezing process, the upper and lower layers of film at the bag opening will adhere to each other due to intermolecular forces, directly blocking the already narrow flow channel and exacerbating the difficulty of squeezing.

[0004] Therefore, in order to overcome the shortcomings of the existing technology, it is necessary to design a stand-up pouch with a flow guiding function. Utility Model Content

[0005] This invention provides a stand-up pouch with a flow guiding function to solve the problems of the prior art.

[0006] The purpose of this utility model can be achieved through the following technical solution: A stand-up pouch with a flow guiding function includes: a stand-up pouch body, wherein a special-shaped nozzle is provided at the upper left corner of the stand-up pouch body, and the front and back of the special-shaped nozzle are provided with laser easy-tear lines and flow guiding embossing, and the flow guiding embossing extends to the front and back of the stand-up pouch body, and the flow guiding embossing on the front and back protrudes outward to form a flow guiding groove.

[0007] In a further improvement, the flow-guiding embossing includes multiple flow-guiding lines, and the diameter of the flow-guiding groove formed by the arching of the flow-guiding embossing is set to decrease along the irregular nozzle of the stand-up pouch body.

[0008] In a further improvement, the laser-tearable line consists of 3 to 5 parallel lines, with a spacing of 1 mm between each parallel line, and the laser-tearable line is set perpendicular to the central axis guide line of the flow guiding embossing.

[0009] In a further improvement, the stand-up pouch body comprises a polyester film layer, a nylon film layer, and a polyethylene film layer sequentially laminated together.

[0010] In a further improvement, a printed film layer is provided between the polyester film layer and the nylon film layer, and the laser-tearable line penetrates the polyester film layer, the printed film layer and the nylon film layer in sequence, but does not penetrate the polyethylene film layer.

[0011] Compared with existing technologies, the beneficial effects of this utility model of a stand-up pouch with a flow guiding function are as follows: The embossed patterns on both sides of the irregularly shaped nozzle protrude outwards, forming independent flow channels. On one hand, the raised flow channels can support the upper and lower films at the bag opening when the bag body is not squeezed, preventing the two films from naturally adhering and sticking together, and reserving a liquid flow channel in advance; on the other hand, when the bag body is squeezed, the film will deform in a directional manner along the trajectory of the raised flow embossed patterns, rather than shrinking randomly, ensuring that the flow channel is always unobstructed and solving the problem of compression deformation and blockage.

[0012] This stand-up pouch with a diversion function is widely applicable to liquid packaging. The size can be customized according to customer needs. It is easy to pour and the liquid flows smoothly. Compared with welded nozzle stand-up pouches, this mechanism does not require additional packaging components. Its process is simple, the effect is good, and the cost is not significantly increased, giving it a strong market competitiveness. Attached Figure Description

[0013] Figure 1 This is a structural schematic diagram of the present invention. Figure 2 This is a partially enlarged structural schematic diagram of the present invention. In the picture, 1-stand-up pouch body, 2-unique nozzle, 3-laser easy-tear line, 4-flow guide embossing. Detailed Implementation

[0014] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model; unless otherwise expressly specified and limited, the terms "installed," "connected," and "joined" should be interpreted broadly, for example, they can refer to fixed connections or detachable connections, etc. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0015] The following is a description of the embodiments and appendices. Figures 1-2 The technical solution of this utility model will be further described below.

[0016] Example 1 A stand-up pouch with a flow guiding function includes: a stand-up pouch body 1, wherein a special-shaped nozzle 2 is provided at the upper left corner of the stand-up pouch body 1, and the front and back of the special-shaped nozzle 2 are provided with laser easy-tear lines 3 and flow guiding embossing 4, and the flow guiding embossing 4 extends to the front and back of the stand-up pouch body 1, and the flow guiding embossing 4 on the front and back protrudes outward to form a flow guiding groove.

[0017] like Figures 1-2 As shown, the working principle of this utility model is as follows: The irregularly shaped nozzle in the upper left corner can be naturally aligned with the bottle opening. The nozzle's bottle-mouth-like contour can be adapted to most standard bottle openings, making it compatible with original packaging bottles from different brands and ensuring universality.

[0018] The embossed patterns on both sides of the irregularly shaped nozzle protrude outwards, forming independent flow channels. On one hand, the raised flow channels can support the upper and lower films at the bag opening when the bag body is not squeezed, preventing the two films from naturally adhering and sticking together, and reserving a liquid flow channel in advance; on the other hand, when the bag body is squeezed, the film will deform in a directional manner along the trajectory of the raised flow embossed patterns, rather than shrinking randomly, ensuring that the flow channel is always unobstructed and solving the problem of compression deformation and blockage.

[0019] The laser-cut easy-tear line only damages the surface structure of the bag without penetrating the whole. While ensuring the bag's airtightness, it provides users with an opening path. When users tear along the easy-tear line, a flat opening can be quickly formed without the need for tools such as scissors.

[0020] As a further preferred embodiment, the flow-guiding embossing 4 includes multiple flow-guiding lines. The diameter of the flow-guiding groove formed by the arched flow-guiding embossing decreases from the self-standing bag body 1 along the shaped nozzle 2. The multiple flow-guiding lines are symmetrically distributed, which can guide the dispersed liquid flowing inside the bag. The wide groove inside the bag body can accommodate more liquid flowing simultaneously, reducing local congestion; the groove that gradually narrows towards the shaped nozzle guides the liquid to converge, avoiding liquid dispersion and splashing at the bag opening, reducing the resistance of the liquid in the flow channel, and improving the flow rate stability.

[0021] As a further preferred embodiment, the laser-cut easy-tear line 3 comprises 3 to 5 parallel lines, with a spacing of 1 mm between each parallel line. The laser-cut easy-tear line 3 is perpendicular to the central axis of the flow-guiding embossing 4. A single easy-tear line is prone to incomplete opening due to excessive local force. 3 to 5 parallel lines can disperse the tension during opening, allowing the tear to break simultaneously along multiple lines, ensuring a smooth opening edge and preventing tearing of the bag. The reasonable spacing ensures convenient opening while preventing leakage of contents. The easy-tear line is perpendicular to the central axis of the flow-guiding embossing, and the edge of the bag opening formed after opening is completely consistent with the extension direction of the flow-guiding groove.

[0022] As a further preferred embodiment, the stand-up pouch body 1 comprises a polyester film layer, a nylon film layer, and a polyethylene film layer sequentially laminated together. A printed film layer is disposed between the polyester film layer and the nylon film layer. A laser-cut easy-tear line 3 sequentially penetrates the polyester film layer, the printed film layer, and the nylon film layer, but does not penetrate the polyethylene film layer. The multi-layer composite structure integrates the advantages of each film: the outer polyester film is abrasion-resistant and maintains the bag's rigidity; the middle nylon film is puncture-resistant and tensile-resistant; and the inner polyethylene film is compression-resistant. This effectively prevents damage or deformation of the bag during transportation, storage, and use, reduces product loss, and extends the bag's service life.

[0023] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this utility model through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A self-standing bag with a flow guiding function, characterized in that include: The stand-up pouch body has a shaped nozzle at the upper left corner. The front and back of the shaped nozzle are provided with laser-cut easy-tear lines and flow-guiding embossing. The flow-guiding embossing extends to the front and back of the stand-up pouch body, and the flow-guiding embossing on the front and back protrudes outward to form a flow-guiding groove.

2. The self-standing bag with a flow guiding function according to claim 1, characterized in that, The flow guiding embossing includes multiple flow guiding lines, and the diameter of the flow guiding groove formed by the arching of the flow guiding embossing is set to decrease along the irregular nozzle of the stand-up pouch body.

3. A stand-up pouch with a flow-guiding function according to claim 1, characterized in that, The laser-tearable line consists of 3 to 5 parallel lines, with a spacing of 1 mm between each parallel line. The laser-tearable line is perpendicular to the central guide line of the flow guiding embossing.

4. The self-standing bag with a flow guiding function according to claim 1, characterized in that, The stand-up pouch body comprises a polyester film layer, a nylon film layer, and a polyethylene film layer that are sequentially laminated together.

5. The self-standing bag with a flow guiding function according to claim 4, characterized in that, A printed film layer is provided between the polyester film layer and the nylon film layer. The laser-tearable line penetrates the polyester film layer, the printed film layer and the nylon film layer in sequence, but does not penetrate the polyethylene film layer.

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