Continuous box-in-box bag

Abstract

A continuous box-in-box bag comprises a plurality of box-in-box bags which are sequentially connected into a whole through spot breaking tearing lines, a bag body of each box-in-box bag is formed by connecting a front surface layer and a rear surface layer, at least one temperature sensing ink identification layer is arranged in one surface layer, an inclined sealing edge is arranged on the inner side of a corner on the periphery of the bag body in a heat sealing mode, and a corner part for grabbing is formed on the outer side of the inclined sealing edge. According to the utility model, the bag-in-box adopts a connected form, so that the storage and transportation cost can be reduced, the continuous automatic filling can be realized, and meanwhile, the temperature sensing ink on the bag body can have an indication effect on the problems of over-high temperature and over-low temperature in the storage and transportation process.

Description

Technical Field

[0001] The utility model relates to a packaging bag, more specifically to a continuous bag-in-box. Background Art

[0002] Bag-in-box is a packaging form designed and developed based on the problem of difficult liquid packaging and transportation. Compared with traditional hard packaging, it saves about 35% of transportation and storage costs, and generates 85% less garbage than bottled packaging. The packaging material cost is lower than other packaging forms, and it can be recycled, making it a more environmentally friendly material. Bag-in-box packaging can be widely used in juice, wine, juice drinks, mineral water, edible oil, food additives, industrial agents, medical reagents, liquid fertilizers, pesticides, etc.

[0003] Existing bag-in-boxes are all single bags made of 4 or 6 layers of materials. The finished product is a single bag, which is stacked for packing. Since the bags contain tube caps, the number of boxes packed is small, and the storage and transportation costs are high. During filling, non-connected bags-in-box need to be hung on the machine one by one before filling, which is inefficient. During filling, the bags need to be placed on the machine manually. Since the position of the bag mouth and the position of the machine filling port are easily misaligned, filling leakage often occurs, and high labor costs are required. The contents of many bag-in-boxes are sterile products, and there is a risk of bringing in foreign matter or infection of miscellaneous bacteria when manually hanging and touching the bags.

[0004] Furthermore, after filling, the entire bag will be very large and bulging. When the contents are liquid, the bag will be filled all around. The inner edge of the bag will form a heat-sealed edge, which is inconvenient to grab when transporting or taking. In addition, since bag-in-box is generally used to hold liquid food, when the bag is heated or cooled, the products transported in the bag, such as food, will deteriorate due to high / low temperature, which is difficult to detect without opening the bag. This case is caused by this. Utility Model Content

[0005] The utility model aims to provide a continuous bag-in-box, which adopts a connected form, can reduce storage and transportation costs, and can realize continuous automatic filling. At the same time, the temperature-sensitive ink on the bag body can indicate the problem of too high or too low temperature during storage and transportation.

[0006] In order to achieve the above purpose, the solution of the utility model is:

[0007] A continuous bag-in-box comprises a plurality of bags-in-boxes which are connected in sequence through dot-break tear lines. The bag body of each bag-in-box comprises two front and rear surface layers connected together, one of which is provided with at least one temperature-sensitive ink marking layer. The inner side of the corners around the bag body is heat-sealed with an oblique sealing edge, and the outer side of the oblique sealing edge forms a corner portion that can be grasped.

[0008] Furthermore, a high temperature marking layer and a low temperature marking layer are arranged on the temperature sensitive ink marking layer, and the high temperature marking layer and the low temperature marking layer are arranged at intervals.

[0009] Furthermore, a bag mouth for filling is arranged on the bag body of each bag-in-box, the temperature-sensitive ink marking layer is located near the bag mouth, and the temperature-sensitive ink marking layer is printed on the inner side of the outer layer of the surface layer.

[0010] Furthermore, the bag mouth is matched with a cover or a valve for closing the bag mouth, the bag mouth is sealed on the surface layer, and the cover or the valve is closely matched with the bag mouth to form a seal.

[0011] Furthermore, the outer corner edge of the corner portion is chamfered into an arc shape.

[0012] Furthermore, the point-break tear line is formed by punching between the bag bodies with a sawtooth rolling cutter.

[0013] After adopting the above structure, the utility model arranges the bag-in-box as a connected form, and the bag-in-box is transported in a whole roll, with a small transportation volume and low storage and transportation costs. Since the bags-in-box are connected as a whole by a point-break tear line, they can be easily cut and separated, thereby realizing continuous automatic filling; temperature-sensitive ink is printed in the bag body, which has an indication effect on problems of too high or too low temperatures during storage and transportation. At the same time, the corner design of the bag body can also avoid the problem of inconvenient picking and carrying after bagging. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the structure of the utility model. DETAILED DESCRIPTION

[0015] In order to further explain the technical solution of the present utility model, the present utility model is described in detail below through specific embodiments.

[0016] Combination Figure 1As shown, the utility model discloses a continuous bag-in-box, including a plurality of bags-in-box 1 connected in sequence by a dot-break tear line 21, and only two bags-in-box 1 are shown in the figure. The bag body of each bag-in-box 1 may include two front and rear surface layers 11 connected by heat sealing. The bag body of each bag-in-box 1 is provided with a bag mouth 12 for filling, and the bag mouth is matched with a cover or valve (not shown in the figure) for closing the bag mouth. The bag mouth 12 is sealed on the surface layer 11, and the cover or valve and the bag mouth are closely matched to form a seal. The dot-break tear line 21 can be formed by punching between the bag bodies by a serrated roller. In the bag making process, the serrated roller can be mounted on the bag making equipment. After the bag passes the corresponding width, the guide roller stops working, the bag is stationary, and the serrated roller moves from the left (right) side of the bag to the right (left) side of the bag at a pressure of 0.2Mpa and a speed of 3 seconds per bag, so that an easy-tear line can be formed between the bags. By forming the bag in box into a connected form, it can be rolled up and transported as a whole roll, with a small transportation volume and low storage and transportation costs. During filling, it can be automatically loaded on the machine for filling, saving labor and achieving continuous automatic filling. During the filling process, the bag mouth and the filling port of the machine can be closely matched, which is not easy to leak or be infected with bacteria.

[0017] Furthermore, in the bag-in-box 1, at least one temperature-sensitive ink identification layer 3 may be provided in one of the surface layers, and the temperature-sensitive ink identification layer 3 is printed on the inner side of the outer layer of the surface layer 11, and the ink will not fall off in the inner printing method. The temperature-sensitive ink identification layer 3 may be located near the bag mouth 12. Since the liquid content enters from the bag mouth 12 during filling, the temperature-sensitive ink identification layer 3 is arranged near the bag mouth to sense the temperature of the liquid content at the first time. A high-temperature identification layer and a low-temperature identification layer may be provided on the temperature-sensitive ink identification layer, and the high-temperature identification layer and the low-temperature identification layer are arranged at intervals. The temperature can be judged according to the temperature-sensitive ink identification layer. When the temperature is higher than a certain temperature, the high-temperature identification layer changes color, and when the temperature is lower than a certain temperature, the low-temperature identification layer changes color. Therefore, when the bag-in-box 1 is heated or cooled beyond a certain temperature range, the obvious color change can be used as a warning or indication to remind people that the food in the bag is overheated / overcooled or the transported products may deteriorate due to high temperature / low temperature.

[0018] In addition, the bag in box 1 can be formed by connecting the peripheries of the two surface layers 11 by heat sealing. The bag body in this embodiment is rectangular and has four corners. The inner side of the corners around the bag body is heat-sealed with an oblique sealing edge 13, and the outer side of the oblique sealing edge 13 forms a corner portion 14 that can be grasped. At the same time, the corner edge of the outer side of the corner portion 14 forms an arc chamfer to avoid stabbing the bag easily due to the right angle, and also provides a certain guiding effect for tearing. After filling, the bag will be very large and bulging. When the content is liquid, it fills all around, which is inconvenient to take and carry. Since the oblique sealing edge 13 is added around the bag body, the liquid will not enter the corner portion 14, and the corner portion 14 can play a role of being grasped by hand, which is convenient for taking the bag in the box after filling.

[0019] The above embodiments and drawings do not limit the product form and style of the present utility model. Any appropriate changes or modifications made by ordinary technicians in the relevant technical field should be deemed to be within the patent scope of the present utility model.

Claims

1. A continuous bag-in-box, characterized in that: The invention comprises a plurality of bags in boxes which are connected in sequence through dot-break tear lines. The bag body of each bag in box comprises two front and rear surface layers connected together. One of the surface layers is provided with at least one temperature-sensitive ink marking layer. The inner sides of the corners around the bag body are heat-sealed with oblique edges, and the outer sides of the oblique edges form corners that can be grasped.

2. A continuous bag-in-box as claimed in claim 1, characterized in that: A high temperature marking layer and a low temperature marking layer are arranged on the temperature sensitive ink marking layer, and the high temperature marking layer and the low temperature marking layer are arranged at intervals.

3. A continuous bag-in-box as claimed in claim 1, characterized in that: A bag mouth for filling is arranged on the bag body of each bag in box, a temperature-sensitive ink marking layer is located near the bag mouth, and the temperature-sensitive ink marking layer is printed on the inner side of the outer layer of the surface layer.

4. A continuous bag-in-box as claimed in claim 3, characterized in that: The bag mouth is matched with a cover or a valve for closing the bag mouth, the bag mouth is sealed on the surface layer, and the cover or the valve is closely matched with the bag mouth to form a seal.

5. The continuous bag-in-box according to claim 1, characterized in that: The outer corner edge of the corner portion is formed into a circular arc chamfer.

6. The continuous bag-in-box according to claim 1, characterized in that: The point-break tear line is formed by punching between the bag bodies with a serrated rolling cutter.

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