Continuous inflation bag-in-bag

Abstract

The utility model discloses a continuously inflated bag-in-bag, and relates to the technical field of bags-in-bag. According to the technical scheme, the packaging bag is characterized by comprising a plurality of bag bodies which are sequentially connected with one another, an easy-to-tear line is arranged between every two adjacent bag bodies, each bag body comprises an inner bag and an outer bag, the edges of the inner bags and the outer bags are sealed through hot pressing, inflation cavities are formed in the edges of the inner bags and the outer bags, the inner bags are provided with open type containing cavities, and the open type containing cavities are communicated with the outer bags. And the air inflation assembly is used for inflating the air inflation cavities. The utility model aims to provide a continuously inflated bag-in-bag.

Description

Technical Field

[0001] This utility model relates to the field of bag-in-bag technology, and more specifically, to a continuously inflatable bag-in-bag. Background Technology

[0002] With the increasing prevalence of express delivery and the complex logistics environment, the requirements for product protection are becoming more stringent. Commonly used inflatable bags, made of high-strength kraft paper, PP woven bags, or PE film, are shock-absorbing cushioning materials used in cargo transportation. Inflatable bags offer numerous advantages, including low manufacturing costs, ease of use, and good transport performance.

[0003] Chinese Patent CN210083978U discloses an inflatable bag-in-bag with cushioning effect, relating to the field of cushioning packaging, mainly to solve the problem of poor cushioning effect of existing inflatable bag-in-bags; the inflatable bag-in-bag with cushioning effect includes an inflatable bag, an inflation port, and an inflation valve. The inflatable bag includes an inner bag and an outer bag. The front end of the inflatable bag is provided with an inflation port, which is connected to the inner bag through the inflation valve. The inflatable bag is provided with several heat-sealing points. By setting heat-sealing points between the inner bag and the outer bag, the packaging effect is improved and the packaging breakage rate is reduced.

[0004] The above technical solution requires each bag to be inflated individually during use. When a large number of bags are needed, a significant amount of labor is required for inflation.

[0005] Therefore, a new technical solution is urgently needed to solve the above-mentioned technical problems. Utility Model Content

[0006] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a continuous inflatable bag-in-bag.

[0007] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a continuous inflatable bag-in-bag, comprising a plurality of bag bodies connected sequentially to each other, with an easy-tear line provided between two adjacent bag bodies, each bag body comprising an inner bag and an outer bag, the edges of the inner bag and the outer bag being sealed by heat pressing and forming an inflation cavity, the inner bag being provided with an open receiving cavity, and further comprising an inflation component for inflating each inflation cavity.

[0008] The present invention is further configured such that: the inflation component includes an air channel formed by hot pressing in the interlayer between the inner bag and the outer bag, the air channels between two adjacent bags are interconnected, and an inflation port formed by hot pressing in the interlayer between the inner bag and the outer bag, the inflation port being connected to the air channel and the inflation chamber, and during inflation, the airflow passes through the continuous air channel and fills each inflation chamber through the inflation port.

[0009] The present invention is further configured such that: the inflation assembly also includes an inflation valve disposed in the inflation port, the outer surface of the inflation valve is sealed to the inner surface of the inflation port, and the inflation valve is specifically a one-way valve, the opening direction of which faces the inside of the inflation chamber.

[0010] The present invention is further configured such that: a vertical sealing line is formed between the inner bag and the outer bag by heat pressing, so that the inflation cavity forms a left cavity and a right cavity, and the left cavity is connected to the right cavity.

[0011] The present invention is further configured such that: the easy-tear line adopts a composite structure of laser marking and intermittent indentation, the marking depth is 40%-60% of the total thickness of the bag, and the spacing between adjacent indentations is 2-5mm.

[0012] The present invention is further configured such that: the outer bag is made of three-layer co-extruded nylon composite material with a thickness of 80-120μm, the inner bag is made of food-grade polyethylene material with a thickness of 50-80μm, and the width of the heat-sealed edge of the two is 8-12mm.

[0013] The present invention is further configured such that: a self-adhesive sealing strip is provided at the opening of the inner bag, specifically a pressure-sensitive adhesive layer protected by release paper, with a sealing width ≥15mm.

[0014] The present invention has the following advantages: before use, the inflation component can quickly and conveniently inflate the inflation chambers inside each bag, thereby reducing a lot of labor costs and making it convenient to use. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this embodiment.

[0016] Attached diagram descriptions: 1. Bag body; 101. Inner bag; 102. Outer bag; 2. Easy-tear seam; 3. Inflation chamber; 301. Left chamber; 302. Right chamber; 4. Air flow channel; 5. Inflation port; 6. Inflation valve; 7. Sealing line; 8. Self-adhesive sealing strip. Detailed Implementation

[0017] The present invention will be further described in detail below with reference to the accompanying drawings.

[0018] Identical parts are indicated by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "up," and "down" used in the following description refer to directions in the accompanying drawings, while the terms "bottom surface," "top surface," "inner," and "outer" refer to directions toward or away from the geometric center of a specific part, respectively.

[0019] As shown in the figure, a continuous inflatable bag-in-bag includes several bag bodies 1 connected in sequence. An easy-tear line 2 is provided between two adjacent bag bodies 1. The bag body 1 includes an inner bag 101 and an outer bag 102. The edges of the inner bag 101 and the outer bag 102 are sealed by heat pressing and form an inflation cavity 3. The inner bag 101 is provided with an open receiving cavity. It also includes an inflation component for inflating each inflation cavity 3.

[0020] Before use, the inflation components can quickly and easily inflate the inflation chambers 3 inside each bag 1, thereby reducing a lot of labor costs and making it convenient to use.

[0021] The inflation assembly includes an air channel 4 formed by hot pressing in the interlayer between the inner bag 101 and the outer bag 102. The air channels 4 between two adjacent bags 1 are interconnected. It also includes an inflation port 5 formed by hot pressing in the interlayer between the inner bag 101 and the outer bag 102. The inflation port 5 is connected to the air channel 4 and the inflation chamber 3. During inflation, the airflow passes through the continuous air channel 4 and fills each inflation chamber 3 through the inflation port 5.

[0022] One end of the air channel 4 is sealed, and air is inflated from its open end. During inflation, the airflow passes through the continuous air channel 4 and fills each inflation chamber 3 through the inflation port 5, thereby quickly inflating each inflation chamber 3.

[0023] The inflation assembly also includes an inflation valve 6 disposed within the inflation port 5. The outer surface of the inflation valve 6 is sealed to the inner surface of the inflation port 5. Specifically, the inflation valve 6 is a one-way valve, and its opening direction faces the inside of the inflation chamber 3. Under the action of the inflation valve 6, air can smoothly enter the inflation chamber 3. After inflation is completed, the bag 1 is torn off through the easy-tear line 2, and the air passage 4 is also torn open at the same time. Under the action of the inflation valve 6, air leakage can be prevented, ensuring the effectiveness of each individual bag 1.

[0024] A vertical sealing line 7 is formed between the inner bag 101 and the outer bag 102 by heat pressing, so that the inflation chamber 3 forms a left cavity 301 and a right cavity 302. The top of the left cavity 301 is connected to the right cavity 302. Air enters the left cavity 301 and the right cavity 302 simultaneously after passing through the inflation port 5, so as to improve its protective effect on items placed in the open-type containment cavity.

[0025] The easy-tear line 2 adopts a composite structure of laser marking and intermittent indentation. The marking depth is 40%-60% of the total thickness of the bag body 1, and the spacing between adjacent indentations is 2-5mm.

[0026] The outer bag 102 is made of three-layer co-extruded nylon composite material with a thickness of 80-120μm, and the inner bag 101 is made of food-grade polyethylene material with a thickness of 50-80μm. The heat-sealed edge width of the two is 8-12mm.

[0027] The inner bag 101 has a self-adhesive sealing strip 8 at the opening, which is a pressure-sensitive adhesive layer protected by release paper, with a sealing width of ≥15mm, which can seal the items in the inner bag 101.

[0028] The specific embodiments are merely explanations of this utility model and are not intended to limit it. After reading this specification, those skilled in the art can make modifications to these embodiments without contributing any inventive step, but such modifications are protected by patent law as long as they fall within the scope of the claims of this utility model.

Claims

1. A continuous inflatable bag-in-bag, characterized in that: It includes several bags (1) connected in sequence, with an easy-tear line (2) between two adjacent bags (1). Each bag (1) includes an inner bag (101) and an outer bag (102). The edges of the inner bag (101) and the outer bag (102) are sealed by heat pressing and form an inflation cavity (3). The inner bag (101) is provided with an open receiving cavity. It also includes an inflation component for inflating each inflation cavity (3).

2. The continuous inflatable bag-in-bag according to claim 1, characterized in that: The inflation assembly includes an air channel (4) formed by hot pressing in the interlayer between the inner bag (101) and the outer bag (102), the air channels (4) between two adjacent bags (1) are interconnected, and an inflation port (5) formed by hot pressing in the interlayer between the inner bag (101) and the outer bag (102), the inflation port (5) is connected to the air channel (4) and the inflation chamber (3), during inflation the air flows through the continuous air channel (4) and fills each inflation chamber (3) through the inflation port (5).

3. A continuous inflatable bag-in-bag according to claim 2, characterized in that: The inflation assembly also includes an inflation valve (6) disposed in the inflation port (5). The outer surface of the inflation valve (6) is sealed to the inner surface of the inflation port (5). Specifically, the inflation valve (6) is a one-way valve, and its opening direction is towards the inside of the inflation chamber (3).

4. A continuous inflatable bag-in-bag according to claim 1, characterized in that: A vertical sealing line (7) is formed between the inner bag (101) and the outer bag (102) by heat pressing, so that the inflation cavity (3) forms a left cavity (301) and a right cavity (302), and the left cavity (301) is connected to the right cavity (302).

5. A continuous inflatable bag-in-bag according to claim 1, characterized in that: The tear line (2) adopts a composite structure of laser marking and intermittent indentation. The marking depth is 40%-60% of the total thickness of the bag body (1), and the spacing between adjacent indentations is 2-5mm.

6. A continuous inflatable bag-in-bag according to claim 1, characterized in that: The outer bag (102) is made of three-layer co-extruded nylon composite material with a thickness of 80-120μm, and the inner bag (101) is made of food-grade polyethylene material with a thickness of 50-80μm. The width of the heat-sealed edge of the two is 8-12mm.

7. A continuous inflatable bag-in-bag according to claim 1, characterized in that: The inner bag (101) has a self-adhesive sealing strip (8) at the opening, which is specifically a pressure-sensitive adhesive layer protected by release paper, with a sealing width ≥15mm.

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