Composite bag with guiding easy-to-tear performance

Abstract

The utility model relates to the technical field of composite bags, in particular to a composite bag with guiding easy-to-tear performance, which comprises a composite bag body, a bag body to be torn, a matt printing layer, a blocking layer, a reinforcing layer and a heat sealing layer, the sealing unit is connected with the composite bag body, is used for sealing the composite bag body and comprises a first-stage sealing assembly for sealing an object in the composite bag body and a second-stage sealing assembly which is arranged at one end far away from the first-stage sealing assembly and is used for sealing a tearing area; the tearing unit is connected with the sealing unit, is used for providing a tearing point position, and comprises a positioning assembly which is arranged between the primary sealing assembly and the secondary sealing assembly and is used for forming a tearing track; according to the utility model, the tearing position of the composite bag is accurately positioned, the tearing strength is low, and the use is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of composite bags, in particular to a composite bag with guided easy-tear properties. Background Art

[0002] In the prior art, composite bags used for medical devices, medicines, foods, etc. to meet product packaging requirements are usually not easy to tear for patients with impotence or people with poor eyesight.

[0003] Chinese Patent Publication No.: CN213567382U discloses a transversely tearable composite soft packaging bag, which includes: a rectangular bag body, a tear notch, a first positioning plate, a transverse guide strip, and a finger positioning block; the rectangular bag body is provided with an antibacterial BOPP film, an aluminum foil barrier layer, a PET film waterproof layer and a kraft paper outer layer in sequence from the inside to the outside; the tear notch is a V-shaped structure, and the top corner of the tear notch is set to the right, and the upper end surface of the transverse guide strip is flush with the top corner of the tear notch; it can be seen that the transversely tearable composite soft packaging bag has the problems of inaccurate positioning, difficult tearing and inconvenient use. Utility Model Content

[0004] To this end, the utility model provides a composite bag with guided easy-tear properties, so as to overcome the problems of inaccurate tearing position positioning, high tearing strength and inconvenient use in the prior art.

[0005] To achieve the above-mentioned purpose, the utility model provides a composite bag with guided easy-tear performance, comprising: a composite bag body and a bag body to be torn, comprising a printing layer, a barrier layer, a reinforcement layer and a heat-sealing layer; a sealing unit, which is connected to the bag body to be torn and is used to seal the composite bag body, including a primary sealing component for sealing objects in the composite bag body, and a secondary sealing component arranged at one end of the bag body to be torn away from the primary sealing component for sealing a tearing area; a tearing unit, which is connected to the sealing unit and is used to provide a plurality of tearing points, including a positioning component arranged between the primary sealing component and the secondary sealing component to form a tearing track.

[0006] Furthermore, the sealing unit also includes a third sealing component connected to the primary sealing component and the secondary sealing component respectively for sealing the composite bag body and the tearing area simultaneously.

[0007] Furthermore, the third sealing assembly comprises:

[0008] A first sealing strip, used to seal the composite bag body and reinforce the primary sealing assembly;

[0009] A second sealing strip, which is arranged at one end of the composite bag body away from the first sealing strip, is used to seal the composite bag body and reserve a tearing space for the tearing unit;

[0010] The third sealing strip is connected to the first sealing strip and the second sealing strip and is used for performing secondary sealing on the composite bag body.

[0011] Furthermore, the tearing unit also includes a tearing line composed of tearing points to constrain the tearing trajectory.

[0012] Furthermore, the tearing line includes a horizontal tearing line and a curved tearing line.

[0013] Further, the positioning assembly includes a first positioning element and a second positioning element;

[0014] Among them, the first positioning element and the second positioning element are connected to jointly determine the tearing trajectory; the first positioning element is arranged on one side of the bag body to be torn off close to the first sealing strip, and the second positioning element and the first positioning element are axially symmetrically arranged with the horizontal tearing line as the symmetry axis.

[0015] Furthermore, the first positioning element is also used to provide a mounting space for mounting the composite bag body before and after the tearing line is torn off.

[0016] Furthermore, the thickness of the printing layer is set to 18-25um, and the material of the printing layer is matte BOPP film; the thickness of the barrier layer is set to 7-16um; the material of the barrier layer is aluminum foil, the thickness of the reinforcement layer is set to 15um, and the material of the reinforcement layer is BOPA; the thickness of the heat sealing layer is set to 40-80um, and the material of the heat sealing layer is PE.

[0017] Furthermore, the inner circles of the first positioning element and the second positioning element are left unsealed for 1 mm to prevent cutting hands.

[0018] Furthermore, the density of tearing points of the horizontal tearing line is greater than the density of tearing points of the curved tearing line.

[0019] Compared with the prior art, the beneficial effect of the utility model lies in that, when in use, the user can clearly and intuitively put the fingers of both hands into the first positioning element and the second positioning element, and use the arms of both hands to drive the fingers to exert force and tear along the tearing line. The positioning is clear, the operation is simple, and the tearing is easy. The composite bag body includes a matte BOPP film printing layer, an aluminum foil barrier layer, a BOPA reinforcement layer and a PE heat sealing layer, which has the characteristics of blocking oxygen and water vapor and having high heat sealing tensile strength.

[0020] Furthermore, the utility model provides three sealing components on the composite bag body, thereby realizing that the composite bag provides a sterile environment for the product in the bag; a sealing unit is provided in the tearing area to prevent air leakage at the tearing point, thereby further realizing the airtight protection of the product by the composite bag.

[0021] Furthermore, the utility model improves the tearability of the composite bag by arranging a tearing line composed of tearing points on the tearing unit.

[0022] Furthermore, the utility model realizes the constraint on the tearing trajectory by setting a tearing line composed of a horizontal tearing line and a curved tearing line, and further realizes the guiding performance of the composite bag tearing.

[0023] Furthermore, the utility model helps the user to clearly identify the tearing position by providing the first positioning element and the second positioning element, and realizes the mounting function of the composite bag by providing the first positioning element, which is convenient for the user to use.

[0024] Furthermore, the utility model sets the density of tearing points of the horizontal tearing line to be greater than the density of tearing points of the curved tearing line. When the bag to be torn is torn, the probability of the bag to be torn along a non-tearing trajectory is reduced, thereby reducing the tearing strength and improving the practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the overall structure of a composite bag with easy-tear properties according to an embodiment of the utility model. DETAILED DESCRIPTION

[0026] In order to make the purpose and advantages of the utility model more clearly understood, the utility model is further described below in conjunction with embodiments; it should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model.

[0027] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0028] It should be noted that, in the description of the present invention, terms such as "up", "down", "left", "right", "inside", and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings. This is merely for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0029] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0030] See also Figure 1 As shown, it is a schematic diagram of the overall structure of the composite bag with easy-tear performance according to an embodiment of the utility model, including:

[0031] The composite bag body 1 and the bag body to be torn off 9 include a printing layer, a barrier layer, a reinforcement layer and a heat-sealing layer;

[0032] A sealing unit connected to the composite bag body 1 for sealing the composite bag body 1, comprising a primary sealing component 5 for sealing the object in the composite bag body 1, and a secondary sealing component 8 arranged at one end of the bag body 9 to be torn away from the primary sealing component 5 for sealing the tearing area;

[0033] The tearing unit is connected to the sealing unit to provide a tearing point, and includes a positioning component arranged between the primary sealing component 5 and the secondary sealing component 8 to form a tearing track.

[0034] Specifically, the sealing unit further includes a third sealing component which is respectively connected to the primary sealing component and the secondary sealing component for sealing the composite bag body 1 and the tearing area simultaneously.

[0035] Specifically, the primary sealing component 5 is a zipper closure strip. Those skilled in the art will appreciate that, in practice, the width of the zipper closure strip can be adaptively modified or replaced according to the volume of the different composite bag bodies 1, and it is only necessary to ensure that the zipper closure strip can seal the space of the composite bag body 1.

[0036] Specifically, the third sealing assembly includes:

[0037] A first sealing strip 6, used to seal the composite bag body 1 and reinforce the primary sealing assembly;

[0038] A second sealing strip 7, which is arranged at one end of the composite bag body 1 away from the first sealing strip 6, for sealing the composite bag body 1 and reserving a tearing space for the tearing unit;

[0039] The third sealing strip 10 is connected to the first sealing strip 6 and the second sealing strip 7 to perform secondary sealing on the composite bag body 1 and ensure the sealing performance near the tearing point.

[0040] In practice, the utility model provides three sealing components to achieve a composite bag providing a sterile environment for the product in the bag; a sealing unit is provided in the tearing area to prevent air leakage at the tearing point, thereby further achieving airtight protection of the product by the composite bag.

[0041] Specifically, the tearing unit further includes a tearing line 3 formed by tearing points, which is used to constrain the tearing trajectory.

[0042] In practice, the utility model improves the tearability of the composite bag.

[0043] Specifically, the tearing line 3 includes a horizontal tearing line 31 and a curved tearing line 32 .

[0044] In practice, the utility model realizes the constraint on the tearing trajectory by setting the tearing line 3 composed of the horizontal tearing line 31 and the curved tearing line 32, and further realizes the guiding performance of the composite bag tearing.

[0045] Specifically, the positioning assembly includes a first positioning element 2 and a second positioning element 4, wherein the first positioning element 2 and the second positioning element 4 are connected to jointly determine the tearing trajectory; the first positioning element 2 is arranged on one side of the bag body 9 to be torn off close to the first sealing strip 6, and the second positioning element 4 is axially symmetrical with the first positioning element 2 with the horizontal tearing line 31 as the axis of symmetry.

[0046] Specifically, the first positioning element 2 and the second positioning element 4 are both annular edge seals, and the diameter thereof is 20 mm.

[0047] Specifically, the first positioning element 2 is also used to provide a mounting space for mounting the composite bag body 1 before and after the tearing line 3 is torn off.

[0048] Specifically, the thickness of the matte BOPP film printing layer is set to 18-25um, the thickness of the aluminum foil barrier layer is set to 7-16um, the thickness of the BOPA reinforcement layer is set to 15um, and the thickness of the PE heat sealing layer is set to 40-80um.

[0049] Specifically, 1 mm of the inner circles of the first positioning element 2 and the second positioning element are left unsealed to prevent cutting hands.

[0050] In practice, the utility model helps the user to identify the tearing position by setting the first positioning element 2 and the second positioning element 4. The first positioning element 2 further realizes the mounting characteristics of the composite bag, which is convenient for the user to use.

[0051] Specifically, the density of the tearing points of the horizontal tearing line 31 is greater than the density of the tearing points of the curved tearing line 32 .

[0052] In practice, the tear line segment is generally set to 2 mm, the tear point density of the horizontal tear line 31 is set to 0.42 per mm, and the tear point density of the curved tear line 32 is set to 0.40 per mm.

[0053] Furthermore, when the user is tearing the bag, the probability of the bag being torn along a non-tearing trajectory is reduced, thereby reducing the tearing strength and improving the practicality.

[0054] So far, the technical solution of the utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings, but it is easy for those skilled in the art to understand that the protection scope of the utility model is obviously not limited to these specific embodiments. Without departing from the principle of the utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the utility model.

Claims

1. A composite bag with guided tearing performance, characterized in that: include: The composite bag body and the bag body to be torn off include a printing layer, a barrier layer, a reinforcement layer and a heat sealing layer; A sealing unit connected to the composite bag body for sealing the composite bag body, comprising a primary sealing component for sealing the object in the composite bag body, and a secondary sealing component arranged at one end of the bag body to be torn away from the primary sealing component for sealing the tearing area; The tearing unit is connected to the sealing unit and is used to provide a plurality of tearing points, including a positioning component arranged between the primary sealing component and the secondary sealing component to form a tearing track.

2. The composite bag with guided tearing performance according to claim 1, characterized in that: The sealing unit further comprises a third sealing component which is respectively connected to the primary sealing component and the secondary sealing component and is used for sealing the composite bag body and the tearing area simultaneously.

3. The composite bag with guided tearing performance according to claim 2, characterized in that: The third sealing assembly comprises: A first sealing strip, used to seal the composite bag body and reinforce the primary sealing assembly; A second sealing strip, which is arranged at one end of the composite bag body away from the first sealing strip, is used to seal the composite bag body and reserve a tearing space for the tearing unit; The third sealing strip is connected to the first sealing strip and the second sealing strip and is used for performing secondary sealing on the composite bag body.

4. The composite bag with guided tearing performance according to claim 3, characterized in that: The tearing unit also includes a tearing line formed by tearing points to constrain the tearing trajectory.

5. The composite bag with guided tearing performance according to claim 4, characterized in that: The tear-off line includes a horizontal tear-off line and a curved tear-off line.

6. The composite bag with guided tearing performance according to claim 5, characterized in that: The positioning assembly includes a first positioning element and a second positioning element; Among them, the first positioning element and the second positioning element are connected to jointly determine the tearing trajectory; the first positioning element is arranged on one side of the bag body to be torn off close to the first sealing strip, and the second positioning element and the first positioning element are axially symmetrically arranged with the horizontal tearing line as the symmetry axis.

7. The composite bag with guided tearing performance according to claim 6, characterized in that: The first positioning element is also used to provide a mounting space for mounting the composite bag body before and after the tearing line is torn off.

8. The composite bag with guided tearing performance according to claim 1, characterized in that: The thickness of the printing layer is set to 18-25um, and the material of the printing layer is matte BOPP film; the thickness of the barrier layer is set to 7-16um, and the material of the barrier layer is aluminum foil; the thickness of the reinforcement layer is set to 15um, and the material of the reinforcement layer is BOPA; the thickness of the heat sealing layer is set to 40-80um, and the material of the heat sealing layer is PE.

9. The composite bag with guided tearing performance according to claim 6, characterized in that: The inner circles of the first positioning element and the second positioning element are left unsealed by 1 mm.

10. The composite bag with guided tearing performance according to claim 5, characterized in that: The density of the tearing points of the horizontal tearing line is greater than the density of the tearing points of the curved tearing line.

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