Flexible packaging bag capable of being opened and sealed for multiple times

Abstract

The flexible packaging bag capable of being opened and sealed repeatedly comprises a bag opening and a bag body, the bag opening is sequentially provided with a sealing line, an easy-to-tear opening and a clamping chain self-sealing strip from top to bottom, the sealing line is used for sealing the flexible packaging bag, the easy-to-tear opening is used for tearing the upper portion of the bag opening to remove the sealing line, and the upper portion of the flexible packaging bag is opened. The clamping chain self-sealing strip is used for sealing the opened flexible packaging bag again; at least one outer side of the flexible packaging bag is provided with a drawstring, the drawstring is used for pulling open the clamping chain self-sealing strip, the upper end of the drawstring is fixed between the easy-to-tear opening and the clamping chain self-sealing strip, and the lower end of the drawstring is suspended or fixed below the clamping chain self-sealing strip. The flexible packaging bag capable of being opened and sealed for multiple times is simple in structure and low in processing and manufacturing cost; and the drawstring is arranged between the easy-to-tear opening and the clamping chain self-sealing strip, so that the opening pulling force is smaller, the bag body cannot be violently deformed, the contained articles are prevented from spilling out, and the use is convenient.

Description

Technical Field

[0001] The utility model belongs to the technical field of packaging products, and in particular relates to a soft packaging bag which can be opened and sealed multiple times. Background Art

[0002] In the fields of camping, life-saving, medicine, daily life, etc., a packaging bag that can be opened and sealed multiple times is needed to hold food, drinking water, medicine, etc. The existing technology usually adopts zipper bags, spout bags or buckles at the bag mouth to achieve this. However, ordinary zipper bags require fingers to be extended to the inside of the bag mouth to open the zipper bag, which can easily cause the inside of the bag mouth to be contaminated by fingers. When taking food, drinking water, medicine and other supplies in the zipper bag, the supplies will inevitably contact the inside of the bag mouth and be contaminated. According to the packaging industry standard "BBT0014-2011 Zipper Ziplock Bag", the zipper of the zipper ziplock bag must have an inner opening tension greater than 5N and an outer opening tension less than 3N, that is, it is convenient to open the zipper from the outside of the bag mouth, while ensuring that the zipper will not be easily opened from the inside to prevent the bag from being accidentally opened due to squeezing.

[0003] Patent document CN209889415U discloses a packaging bag that can be opened and closed multiple times. Multiple opening and closing is achieved by arranging multiple pairs of tear notches at the bag opening and adding Japanese-shaped buckles. Although this solves the problem of multiple openings and avoiding bag opening contamination, the parts structure is complex, the processing cost is high, and the operation is inconvenient during the sealing process. At the same time, the Japanese-shaped buckles used for sealing are easily separated from the bag body and easy to be lost.

[0004] Patent document CN203094693U discloses a zipper bag that is easy to open. By setting a zipper at the mouth of the zipper bag and a pull ring at the bag body, it is convenient to hook the pull ring with fingers to open the zipper, thereby realizing the multiple opening and sealing functions of the zipper bag. However, the pull ring in this scheme is set at the bag body. In actual application, in order to prevent the zipper bag from opening from the inside due to pressure, the bag body side has a larger tensile resistance and the bag mouth side has a smaller opening tension. Therefore, setting a pull ring on the bag body side is not conducive to convenient opening of the zipper, which is inconsistent with the requirements of the industry standard "BBT0014-2011 Zipper Self-sealing Bag". When the bag body contains liquid, the drawstring set on the bag body side will pull the bag body during the opening process, causing the bag body to be greatly deformed and cause the liquid in the bag body to splash out; at the same time, it is not suitable for special-shaped bags, because the bag body is a special-shaped structure, which will affect the opening of the zipper due to the change in the force direction. Utility Model Content

[0005] In order to improve the deficiencies of the prior art, the utility model provides a flexible packaging bag that can be opened and sealed multiple times, which includes at least one of the following advantages: simple structure, easy to open the seal, and suitable for a flexible packaging bag that can be opened and sealed multiple times with a special-shaped bag structure.

[0006] In order to achieve the above purpose, the technical solution adopted is:

[0007] A flexible packaging bag that can be opened and sealed multiple times comprises a bag opening and a bag body, wherein the bag opening is provided with a sealing line, an easy-tear notch and a ziplock self-sealing strip in sequence from top to bottom, wherein the sealing line is used to seal the flexible packaging bag, the easy-tear notch is used to tear open the upper part of the bag opening to remove the sealing line and open the upper part of the flexible packaging bag, and the ziplock self-sealing strip is used to re-seal the flexible packaging bag after opening; a drawstring is provided on at least one outer side of the flexible packaging bag, the drawstring is used to pull open the ziplock self-sealing strip, the upper end of the drawstring is fixed above the ziplock self-sealing strip, and the lower end is suspended or fixed below the ziplock self-sealing strip, and preferably the upper end of the drawstring is fixed between the easy-tear notch and the ziplock self-sealing strip.

[0008] According to the implementation scheme of the utility model, when the lower end of the drawstring is suspended in the air, the length of the drawstring is 2 to 5 cm, the width is 1 to 2 cm, and a structure such as a buckle is provided at the lower end to facilitate finger insertion.

[0009] According to the implementation scheme of the utility model, when the lower end of the drawstring is fixed below the zipper self-sealing strip, the length of the drawstring is 3 to 10 cm, the width is 1 to 2 cm, and the distance between the upper end and the zipper self-sealing strip is smaller than the distance between the lower end and the zipper self-sealing strip.

[0010] According to the implementation scheme of the utility model, the middle part of the drawstring is fixed on the bag body at a position corresponding to the zipper self-sealing strip, and the drawstring is in an n-shaped or m-shaped structure, so that the drawstring can easily open the zipper self-sealing strip.

[0011] According to the implementation scheme of the utility model, the upper end of the drawstring is fixed between the easy-tear opening and the clip chain self-sealing strip, and the distance between the drawstring and the clip chain self-sealing strip is 0.5 to 1.5 cm.

[0012] According to the implementation scheme of the utility model, there are one or more drawstrings. When there is one drawstring, the drawstring is arranged on one side of the bag body. When there are two drawstrings, the drawstrings are arranged on both sides of the bag opening 1 relatively.

[0013] As another preferred solution of the utility model, one end of the drawstring is bonded to the bag opening, and the other end is suspended, so as to avoid both ends being bonded to form a ring structure, which is easily hooked by protruding objects during storage and use, causing accidental opening.

[0014] As another preferred embodiment of the present invention, the bag opening is in the shape of a nozzle, and the clip chain self-sealing strip is arranged in the neck transition area between the bag opening and the bag body, which is suitable for special-shaped liquid packaging bags.

[0015] Compared with the prior art, the flexible packaging bag that can be opened and sealed multiple times provided by the utility model has the following advantages:

[0016] The utility model discloses a flexible packaging bag which can be opened and sealed multiple times, has a simple structure, only needs one end to be bonded to the bag opening, can be heat-formed once in the bag-making process, and has a low processing and manufacturing cost; when opening the ziplock bag, there is no need to reach the inner side of the bag opening with hands, and the bag opening can be opened by pulling the drawstrings on both sides of the bag opening, thus avoiding contamination of the bag opening; the drawstring is arranged between the easy-tear opening and the ziplock self-sealing strip, and the opening tension is smaller; the force process of the bag during the opening process is consistent with the force mode of opening the bag directly, and will not cause severe deformation of the bag body, thus avoiding spillage of the contained items, and is convenient to use and suitable for special-shaped bags. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of a flexible packaging bag that can be opened and sealed multiple times in Embodiment 1 of the present utility model;

[0018] Figure 2 It is a structural schematic diagram of a flexible packaging bag that can be opened and sealed multiple times in Example 2 of the utility model, which is a special-shaped bag.

[0019] Among them: 1-bag opening; 11-sealing line; 12-easy-tear opening; 13-draw strap; 14-zipper self-sealing strip; 2-bag body. DETAILED DESCRIPTION

[0020] The structure of the present utility model will be further described in detail below in conjunction with specific embodiments. It should be understood that the following embodiments are only exemplary descriptions and explanations of the present utility model, and should not be interpreted as limiting the scope of protection of the present utility model. All technologies implemented based on the above content of the present utility model are included in the scope of protection intended by the present utility model.

[0021] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0022] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] Example 1

[0024] As attached Figure 1 As shown, a flexible packaging bag that can be opened and sealed multiple times includes a bag opening 1 and a bag body 2. The bag opening 1 is provided with a sealing line 11, an easy-tear opening 12 and a zipper self-sealing strip 14 from top to bottom. The sealing line 11 is used to seal the flexible packaging bag, the easy-tear opening 12 is used to tear the upper part of the bag opening 1 to remove the sealing line 11 and open the upper part of the flexible packaging bag, and the zipper self-sealing strip 14 is used to re-seal the flexible packaging bag after opening.

[0025] At least one outer side of the flexible packaging bag is provided with a drawstring 13 for pulling open the zipper self-sealing strip 14 . The upper end of the drawstring 13 is fixed above the zipper self-sealing strip 14 , and the lower end is suspended or fixed below the zipper self-sealing strip 14 .

[0026] When the lower end is suspended, the length of the drawstring 13 is 2 to 5 cm, and the width is 1 to 2 cm. A structure such as a buckle can be provided at the lower end to facilitate finger insertion.

[0027] When the lower end is fixed below the zipper self-sealing strip 14 , the length of the drawstring 13 is 3 to 10 cm, the width is 1 to 2 cm, and the distance between the upper end and the zipper self-sealing strip 14 is smaller than the distance between the lower end and the zipper self-sealing strip 14 .

[0028] Furthermore, the middle portion of the drawstring 13 can also be fixed to the zipper self-sealing strip 14 to form an n-shaped or m-shaped structure, so that the drawstring 13 can pull the zipper self-sealing strip 14 open.

[0029] In this embodiment, the upper end of the drawstring 13 is fixed between the tear-away opening 12 and the zipper self-sealing strip 14. To facilitate the drawstring 13 to better open the zipper self-sealing strip 14, the distance between the drawstring 13 and the zipper self-sealing strip 14 is 0.5 to 1.5 cm.

[0030] The number of drawstrings 13 is set according to actual needs, and can be set on only one side; however, they are usually set in pairs and are relatively set on both sides of the bag opening 1.

[0031] The draw tape 13 is used to provide a pulling position when opening the zipper self-sealing strip 14. Since the draw tape 13 is arranged between the easy-tear opening 12 and the zipper self-sealing strip 14 and is at a small distance from the zipper self-sealing strip 14, the pulling force required to open the zipper self-sealing strip 14 is smaller. The force applied to the bag during the opening process is consistent with the force applied when the bag is opened directly from the bag mouth 1, and the bag body 2 will not be drastically deformed, thereby preventing the contents from spilling out.

[0032] The flexible packaging bag that can be opened and sealed multiple times provided in this embodiment has a simple structure. Only one end of the draw tape 13 needs to be bonded to the bag opening 1. It can be heat-formed once during the bag-making process, and the processing and manufacturing cost is low. It can be sealed multiple times through the clip chain self-sealing strip 14. When opening the flexible packaging bag, there is no need to reach the inside of the bag opening 1 with your hands. The bag opening can be opened by pulling the draw tape 13 to avoid contaminating the bag opening 1.

[0033] Example 2

[0034] As attached Figure 2 As shown, a flexible packaging special-shaped bag that can be opened and sealed multiple times includes a bag opening 1 and a bag body 2. The bag opening 1 is in the shape of an elliptical suction nozzle with a width of 2 to 4 cm. A sealing line 11, an easy-tear opening 12 and a zipper self-sealing strip 14 are arranged on the bag opening 1 from top to bottom in sequence. The number of drawstrings 13 is set according to actual needs. This embodiment includes two drawstrings 13, and the two drawstrings 13 are symmetrically arranged on both sides of the bag opening 1. The length of the drawstrings 13 is 3 to 10 cm and the width is 1 to 1.5 cm. The upper end of the drawstring 13 is a connecting section, which is fixed to the bag opening 1, and the other end is a tearing end, which is suspended, and when the drawstring 13 is not in use, the drawstring 13 can be attached to the outside of the bag body 2; in this embodiment, the two drawstrings are symmetrically arranged between the easy-tear opening 12 and the zipper self-sealing strip 14 on both sides of the bag opening 1; the zipper self-sealing strip 14 is arranged in the neck transition area between the bag opening 1 and the bag body 2.

[0035] The flexible packaging special-shaped bag that can be opened and sealed multiple times provided in this embodiment directly sets the bag opening 1 into an elliptical suction nozzle shape during bag making, replacing the screw-on suction nozzle. The various parts of the bag opening 1 have simple structures and can be heat-formed once during the bag making process, with low processing and manufacturing costs. For the first use, it can be eaten by tearing it directly from the easy-tear opening 12, and the uneaten food can be sealed by the clip chain self-sealing strip 14. When opening the flexible packaging special-shaped bag again, it only needs to pull open the clip chain self-sealing strip 14 through the drawstring 13, which is simple and convenient.

[0036] The above contents are further detailed descriptions of the present invention in combination with specific preferred implementations, and the specific implementation of the present invention cannot be considered to be limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention, which should be regarded as falling within the protection scope of the present invention.

Claims

1. A flexible packaging bag that can be opened and sealed multiple times, comprising a bag opening and a bag body, characterized in that: The bag opening is provided with a sealing line, an easy-tear notch and a zipper self-sealing strip in sequence from top to bottom. The sealing line is used to seal the soft packaging bag, the easy-tear notch is used to tear open the upper part of the bag opening to remove the sealing line and open the upper part of the soft packaging bag, and the zipper self-sealing strip is used to re-seal the soft packaging bag after opening; at least one outer side of the soft packaging bag is provided with a draw tape, the draw tape is used to pull open the zipper self-sealing strip, the upper end of the draw tape is fixed between the easy-tear notch and the zipper self-sealing strip, and the lower end is suspended in the air or fixed below the zipper self-sealing strip.

2. The flexible packaging bag that can be opened and sealed multiple times according to claim 1, characterized in that: When the lower end of the drawstring is suspended in the air, the length of the drawstring is 2 to 5 cm and the width is 1 to 2 cm.

3. The flexible packaging bag that can be opened and sealed multiple times according to claim 1, characterized in that: When the lower end of the drawstring is fixed below the clip chain self-sealing strip, the length of the drawstring is 3 to 10 cm, the width is 1 to 2 cm, and the distance between the upper end and the clip chain self-sealing strip is smaller than the distance between the lower end and the clip chain self-sealing strip.

4. The flexible packaging bag that can be opened and sealed multiple times according to any one of claims 1 to 3, characterized in that: The middle part of the drawstring is fixed on the bag body at a position corresponding to the clip chain self-sealing strip, and the drawstring is in an n-shaped or m-shaped structure.

5. The flexible packaging bag that can be opened and sealed multiple times according to any one of claims 1 to 3, characterized in that: The distance between the drawstring and the clip chain self-sealing strip is 0.5 to 1.5 cm.

6. The flexible packaging bag that can be opened and sealed multiple times according to any one of claims 1 to 3, characterized in that: The number of the drawstrings is one or more.

7. The flexible packaging bag that can be opened and sealed multiple times according to claim 6, characterized in that: The soft packaging bag comprises two drawstrings which are arranged oppositely at two sides of the bag opening.

8. A flexible packaging bag that can be opened and sealed multiple times according to any one of claims 1 to 3, characterized in that: One end of the drawstring is bonded to the bag opening, and the other end is suspended.

9. A flexible packaging bag that can be opened and sealed multiple times according to any one of claims 1 to 3, characterized in that: The bag opening is in the shape of a nozzle, and the clip chain self-sealing strip is arranged in a neck transition area between the bag opening and the bag body.

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