A kind of degradable environmentally friendly PE packaging bag and its manufacturing method

Abstract

The invention relates to the technical field of packaging bags, in particular to a degradable and environmentally friendly PE packaging bag and a manufacturing method thereof. The degradable and environmentally friendly PE packaging bag comprises a bag body and a No. 1 seal, wherein the bag body is divided into a storage chamber, a No. 1 water storage chamber and a No. 2 water storage chamber; the storage chamber and the No. 1 water storage chamber are sealed and connected by a No. 2 seal, and the storage chamber and the No. 2 water storage chamber are sealed and connected by a No. 3 seal; the No. 1 water storage chamber and the No. 2 water storage chamber are separated by a partition; the present invention divides the bag body into the storage chamber, the No. 1 water storage chamber and the No. 2 water storage chamber; the volume ratio of the storage chamber, the No. 1 water storage chamber and the No. 2 water storage chamber is 2:1:1; the present invention alternately presses the No. 1 water storage chamber and the No. 2 water storage chamber so that water in the No. 1 water storage chamber and the No. 2 water storage chamber flows upward, thereby washing fruits in the storage chamber, thereby ensuring the refreshing taste of the fruits, and making the present invention have the effects of simple operation, convenient use, and economical and practical.

Description

Technical Field

[0001] The invention relates to the technical field of packaging bags, in particular to a degradable and environmentally friendly PE packaging bag and a manufacturing method thereof. Background Art

[0002] PE packaging bags are bags used to pack various foods and items; PE is the abbreviation of polyethylene, which is a thermoplastic resin made by polymerization of ethylene; PE packaging bags are transparent plastic bags that can be used for packaging clothing, bags, electronic products and food. With the increasing awareness of environmental protection, degradable and environmentally friendly materials are often added to PE packaging bags in the prior art to form degradable and environmentally friendly PE packaging bags; when the weather is hot, the water source is limited and the water cleanliness is not high when going out for an outing, and the fruit cannot be washed on the spot. At the same time, when going out for an outing, there are bacteria on the hands and it is not easy to directly contact the fruit, so it is generally washed at home and then put in a bag to take away, but some fruits are not easy to preserve after washing, and the skin membrane outside the peel will affect the taste if it is washed off and left for a long time, such as grapes and cherry tomatoes, so at this time, a degradable and environmentally friendly PE packaging bag that can solve the water source problem and wash the fruit and eat it immediately is needed.

[0003] For example, a Chinese patent with application number CN201910332702.2 discloses a fruit packaging bag, including a storage box, a power device is provided in the storage box, a packaging bag is provided on the lower side of the storage box, a telescopic device and a roller device are provided in the packaging bag, and the power device includes a synchronous belt cavity provided in the storage box. The device of this technical solution is simple to operate and easy to use. It can not only preserve fruits in a vacuum state and increase the preservation time, but also prevent the fruits from being damaged during transportation by surrounding the packaging film with gas. It is also convenient to transport on different road conditions. When not in use, the device can be stored to reduce space occupancy. However, this technical solution has a complex structure, high cost, and is not easy to carry. In addition, the fruits under vacuum packaging do not taste as good as the fruits that are washed and eaten immediately, which makes this solution have limitations.

[0004] In view of this, in order to overcome the above technical problems, the present invention proposes a degradable and environmentally friendly PE packaging bag and a manufacturing method thereof, which solves the above technical problems. Summary of the invention

[0005] In order to make up for the shortcomings of the prior art, the present invention proposes a degradable and environmentally friendly PE packaging bag and a manufacturing method thereof. The present invention presses the No. 1 water storage chamber and the No. 2 water storage chamber alternately so that the water in the No. 1 water storage chamber and the No. 2 water storage chamber flows upward to wash the fruits in the storage chambers, thereby ensuring that the fruits have a refreshing taste. The present invention has the effects of simple operation, easy use, and economical and practical.

[0006] The technical solution adopted by the present invention to solve the technical problem is as follows: the degradable and environmentally friendly PE packaging bag of the present invention comprises a bag body and a No. 1 seal, wherein the bag body is divided into a storage cavity, a No. 1 water storage cavity and a No. 2 water storage cavity; the storage cavity and the No. 1 water storage cavity are sealed and connected by a No. 2 seal, and the storage cavity and the No. 2 water storage cavity are sealed and connected by a No. 3 seal; the No. 1 water storage cavity and the No. 2 water storage cavity are separated by a partition; the volume ratio of the storage cavity, the No. 1 water storage cavity and the No. 2 water storage cavity is 2:1:1;

[0007] When working, when the weather is hot, when going out for an outing, the water source is limited and the water is not clean enough, so the fruit cannot be washed on the spot. At the same time, when going out for an outing, there are bacteria on the hands and it is not easy to directly touch the fruit, so it is generally washed at home and packed in a bag to take away. However, some fruits are not easy to preserve after washing, and the skin membrane outside the peel will affect the taste after being washed off for a long time, such as grapes and cherry tomatoes. Therefore, a degradable and environmentally friendly PE packaging bag that can solve the water source problem and allow the fruit to be washed and eaten immediately is needed;

[0008] Therefore, when using the present invention, the staff first opens the No. 1 seal, then opens the No. 2 seal and the No. 3 seal, fills the No. 1 water storage chamber and the No. 2 water storage chamber with water, and at the same time adds 4-5g of edible salt to dissolve with the added water, and then injects water to 4 / 5 of the height of the No. 1 water storage chamber and the No. 2 water storage chamber, closes the No. 2 seal and the No. 3 seal, and then puts the fruit into the storage chamber, closes the No. 1 seal and reserves a 0.5-1cm opening; in order to eat fresh fruits that have just been washed and To prevent bacterial infection on your hands and from the outside, pinch the two outer walls of the bag, manually open the No. 2 and No. 3 seals, and then place the biodegradable environmentally friendly PE packaging bag at a slope at an angle of 30-45 degrees, so that the No. 1 and No. 2 water storage chambers are relative to the bottom of the storage area, and then press the No. 1 and No. 2 water storage chambers alternately, first press the No. 1 water storage chamber, and the water in the No. 1 water storage chamber will enter the storage chamber. After rinsing and washing the fruit, the water will flow to the No. 2 water storage chamber under the action of gravity. The water in the water chamber is pressed again, and the water in the water chamber No. 2 enters the storage chamber to wash the fruit. After washing, the water flows into the water chamber No. 1 under the action of gravity, so as to realize the reciprocating flow of water in the whole bag. In order to ensure that the fruit is clean, the staff can rub the fruit slightly through the bag during the water flow impacting the fruit, and cooperate with the water flow impacting the fruit, so as to achieve the purpose of washing the fruit clean; after washing, the degradable and environmentally friendly PE packaging bag is picked up, which can play the effect of drying the storage chamber, and the water will flow back to the water chamber No. 1 and the water chamber No. 2, and the impurities will be brought in during the water flow back to the water chamber No. 1 and the water chamber No. 2, so as to ensure the cleanliness of the fruit surface; corresponding to the prior art, the water and the fruit are taken separately to the picnic place, and part of the water needs to be wasted for washing to ensure the cleanliness of the hands. At the same time, it is inevitable that the hands will be contaminated with bacteria when washing the fruit, which affects the health of the staff; the salt added to the water also has a bactericidal effect;

[0009] The present invention alternately presses the first water storage chamber and the second water storage chamber so that the water in the first water storage chamber and the second water storage chamber flows upward to wash the fruits in the storage chambers, thereby ensuring that the fruits have a refreshing taste. The present invention has the effects of simple operation, convenient use, and economical and practical.

[0010] Preferably, a flexible net is provided on one side of the storage cavity away from the No. 1 seal; the flexible net is fixedly connected to the two inner walls of the storage cavity; when working, the material of the flexible net is preferably PE plastic, and when water and fruit are put into the packaging bag and the packaging bag is picked up after the fruit is washed, the fruit will be blocked by the plastic net to prevent the fruit from rolling into the No. 1 water storage cavity and the No. 2 water storage cavity, so that the fruit will not be directly soaked in water and affect the taste.

[0011] Preferably, a nozzle head and a screw cap are provided on the side of the No. 2 water storage chamber away from the No. 1 water storage chamber; threads are distributed on the outer surface of the nozzle head, one end of the nozzle head is connected with the No. 2 water storage chamber, and the other end is connected with the screw cap by threads; a through hole is provided on the partition; the through hole connects the No. 1 water storage chamber and the No. 2 water storage chamber; when working, the No. 1 seal and the No. 2 seal are closed, the position of the storage chamber is turned over to the top of the No. 1 water storage chamber and the No. 2 water storage chamber, the screw cap is rotated, the nozzle head is opened, and the No. 2 water storage chamber is filled with water. After the water is filled to half the height, the screw cap is screwed on the nozzle head to close the No. 2 water filling chamber; by providing the nozzle head and the screw cap, the water storage chamber can be directly filled without passing through the storage chamber. Water is injected into the cavity to prevent the inner wall of the storage cavity from being wetted, which would affect the storage time of the fruit; when the No. 2 water storage cavity is injected with water, the injected water can enter the No. 1 water storage cavity through the through hole; the water body is kept circulating in the entire packaging bag to prevent the situation where the water volume difference between the two water storage cavities is too large to affect the fruit washing effect; after the fruit is washed, the bag body is twisted up, and then the screw cap is opened to let the water flow out. The outflowing water can wash the hands of the staff, so that the staff can use their hands to take the fruit for consumption, thereby ensuring the cleanliness of the edible fruit. Before this design, the bag body needs to be used as a glove to take the fruit through the bag body, and the process is inconvenient.

[0012] Preferably, the through hole is arranged on a side of the partition away from the storage cavity; during operation, when water is injected into the No. 2 water storage cavity, after the water is injected to a certain height, the water will flow into the No. 1 water storage cavity through the through hole, thereby achieving the effect of keeping the water volume in the No. 1 water storage cavity and the No. 2 water storage cavity balanced before pressing the No. 1 water storage cavity and the No. 2 water storage cavity; when alternately pressing the No. 1 water storage cavity and the No. 2 water storage cavity, the outer wall of the degradable and environmentally friendly PE packaging bag is pressed with a finger to achieve the purpose of blocking the through hole, thereby ensuring the amount of water flowing into the storage cavity and improving the cleaning effect of the fruit in the storage cavity.

[0013] Preferably, a flexible ball is fixedly connected at the center of the inner wall of the No. 1 water storage chamber and the No. 2 water storage chamber pair; when working, the material of the flexible ball is preferably sponge, and the two flexible balls are pressed alternately by hand. Since the flexible balls themselves have supporting force, the water body will not be crushed or squeezed through the seal; since the flexible balls themselves are elastic and can be reset in time, sufficient reserved space is left when filling the No. 1 water storage chamber and the No. 2 water storage chamber with water; since the flexible balls are made of sponge material, they can be flattened when under pressure, which is convenient for transportation and sale.

[0014] A method for making a degradable and environmentally friendly PE packaging bag, which is applicable to the above-mentioned degradable and environmentally friendly PE packaging bag, and the steps of the method are as follows:

[0015] S1: First, polyethylene is added into a reactor for heating, and the melted liquid polyethylene is taken out after heating;

[0016] S2: Secondly, the biodegradable plastic masterbatch is put into the liquid polyethylene in S1 and stirred. After stirring evenly, the solid-liquid mixture is added to the film blowing machine, the film blowing machine is turned on, the solid-liquid mixture in the film blowing machine is maintained within a suitable temperature range, and then the mixture is extruded to form an unsealed film;

[0017] S3: Again, the plastic film in S2 is cut to make its edges flat, and then the bottom and sides of the plastic film are sealed with a sealing machine, and then the middle part of one side of the plastic film is thermoplastic extruded, and a through hole is left;

[0018] S4: Finally, the plastic bag obtained in S3 is set at the set position with seal No. 1, seal No. 2, seal No. 3, nozzle head and screw cap purchased on the market before, seal No. 1 is thermoplastically bonded on the top of the plastic bag, seal No. 2 and seal No. 3 are installed in the middle of the plastic bag, the nozzle head is installed on one side of the right end of the plastic bag by thermoplasticization, the screw cap is connected to the nozzle head by threading, and a flexible ball is fixed on the lower side of the plastic bag with glue, thereby making a degradable and environmentally friendly PE packaging bag.

[0019] The beneficial effects of the present invention are as follows:

[0020] 1. The degradable and environmentally friendly PE packaging bag of the present invention alternately presses the first water storage chamber and the second water storage chamber so that the water in the first water storage chamber and the second water storage chamber flows upward to wash the fruits in the storage chamber, thereby ensuring that the fruits have a refreshing taste, making the present invention simple to operate, easy to use, and economical and practical.

[0021] 2. The degradable and environmentally friendly PE packaging bag of the present invention blocks the fruits by setting a plastic net to prevent the fruits from rolling into the first water storage chamber and the second water storage chamber, so that the fruits will not be directly soaked in water to affect the taste.

[0022] 3. The degradable and environmentally friendly PE packaging bag of the present invention is provided with a flexible ball. Since the flexible ball itself has a supporting force, the water body will not be crushed or squeezed through the seal; since the flexible ball itself has elasticity and can be reset in time, sufficient reserved space is left when filling the No. 1 water storage chamber and the No. 2 water storage chamber with water; since the flexible ball is made of sponge material, it can be flattened when under pressure, which is convenient for transportation and sale. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention will be further described below in conjunction with the accompanying drawings and implementation modes.

[0024] Figure 1 It is a front view of the present invention;

[0025] Figure 2 yes Figure 1 Sectional view of AA in the middle;

[0026] Figure 3 yes Figure 1 Cross-sectional view of the middle BB;

[0027] Figure 4 is a flow chart of the manufacturing method of the present invention;

[0028] In the figure: 1, bag body; 11, storage cavity; 111, seal No. 1; 112, flexible net; 12, water storage cavity No. 1; 121, seal No. 2; 122, flexible ball; 13, water storage cavity No. 2; 131, seal No. 3; 132, nozzle head; 133, screw cap; 14, interlayer; 141, through hole. DETAILED DESCRIPTION

[0029] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0030] like Figures 1 to 4 As shown, a degradable and environmentally friendly PE packaging bag of the present invention comprises a bag body 1 and a No. 1 seal 111, wherein the bag body 1 is divided into a storage chamber 11, a No. 1 water storage chamber 12 and a No. 2 water storage chamber 13; the storage chamber 11 and the No. 1 water storage chamber 12 are sealed and connected by a No. 2 seal 121, and the storage chamber 11 and the No. 2 water storage chamber 13 are sealed and connected by a No. 3 seal 131; the No. 1 water storage chamber 12 and the No. 2 water storage chamber 13 are separated by a partition 14; the volume ratio of the storage chamber 11, the No. 1 water storage chamber 12 and the No. 2 water storage chamber 13 is 2:1:1;

[0031] When working, when the weather is hot, when going out for an outing, the water source is limited and the water is not clean enough, so the fruit cannot be washed on the spot. At the same time, when going out for an outing, there are bacteria on the hands and it is not easy to directly touch the fruit, so it is generally washed at home and packed in a bag to take away. However, some fruits are not easy to preserve after washing, and the skin membrane outside the peel will affect the taste after being washed off for a long time, such as grapes and cherry tomatoes. Therefore, a degradable and environmentally friendly PE packaging bag that can solve the water source problem and allow the fruit to be washed and eaten immediately is needed;

[0032] Therefore, when using the present invention, the staff first opens the No. 1 seal 111, then opens the No. 2 seal 121 and the No. 3 seal 131, fills the No. 1 water storage chamber 12 and the No. 2 water storage chamber 13 with water, and at the same time adds 4-5g of edible salt to dissolve with the added water, and then injects water to 4 / 5 of the height of the No. 1 water storage chamber 12 and the No. 2 water storage chamber 13, closes the No. 2 seal 121 and the No. 3 seal 131, and then puts the fruit into the storage chamber 11, closes the No. 1 seal 111 and reserves a 0.5-1cm opening; in order to eat the fresh fruit, the staff first opens the No. 1 seal 111, and then ... Fresh fruits washed with water are prevented from being infected by bacteria on the hands and outside. At this time, pinch the two outer walls of the bag body 1, manually open the No. 2 seal 121 and the No. 3 seal 131, and then place the degradable and environmentally friendly PE packaging bag at a slope of 30-45 degrees, so that the No. 1 water storage chamber 12 and the No. 2 water storage chamber 13 are relative to the bottom of the storage area, and then press the No. 1 water storage chamber 12 and the No. 2 water storage chamber 13 alternately, first press the No. 1 water storage chamber 12, and the water in the No. 1 water storage chamber 12 enters the storage chamber 11. After the fruit is rinsed and washed, the water The water in the second water storage chamber 13 will flow into the second water storage chamber 13 under the action of gravity, and then the second water storage chamber 13 will be pressed, and the water in the second water storage chamber 13 will enter the storage chamber 11 to wash the fruit. After washing, the water will flow into the first water storage chamber 12 under the action of gravity, so as to realize the reciprocating flow of water in the whole bag body 1. In order to ensure that the fruit is cleaned, the staff can rub the fruit slightly through the bag body 1 during the water flow impacting the fruit, and cooperate with the water flow impacting the fruit to achieve the purpose of washing the fruit clean. After washing, the degradable The environmentally friendly PE packaging bag can be lifted up to dry the storage chamber 11, and the water will flow back into the No. 1 water storage chamber 12 and the No. 2 water storage chamber 13. The impurities will also be brought into the water storage chamber 12 and the No. 2 water storage chamber 13 during the process of the water flowing back to the No. 1 water storage chamber 12 and the No. 2 water storage chamber 13, thereby ensuring the cleanliness of the fruit surface. Compared with the prior art, water and fruit are taken separately to the picnic place, and part of the water needs to be wasted for washing to ensure the cleanliness of the hands. At the same time, it is inevitable that bacteria will be contaminated when washing the fruit with hands, which affects the health of the staff. The salt added to the water also has a bactericidal effect.

[0033] The present invention alternately presses the first water storage chamber 12 and the second water storage chamber 13 so that the water in the first water storage chamber 12 and the second water storage chamber 13 flows upward to wash the fruit in the storage chamber 11, thereby ensuring that the fruit has a refreshing taste, making the present invention simple to operate, easy to use, and economical and practical.

[0034] As a specific embodiment of the present invention, a flexible net 112 is provided on one side of the storage cavity 11 away from the No. 1 seal 111; the flexible net 112 is fixedly connected to the two inner walls of the storage cavity 11; when working, the material of the flexible net 112 is preferably PE plastic, and when water and fruit are put into the packaging bag and the packaging bag is picked up after the fruit is washed, the fruit will be blocked by the plastic net to prevent the fruit from rolling into the No. 1 water storage cavity 12 and the No. 2 water storage cavity 13, so that the fruit will not be directly soaked in water and affect the taste.

[0035] As a specific embodiment of the present invention, a nozzle head 132 and a screw cap 133 are provided on the side of the No. 2 water storage chamber 13 away from the No. 1 water storage chamber 12; threads are distributed on the outer surface of the nozzle head 132, one end of the nozzle head 132 is connected with the No. 2 water storage chamber 13, and the other end is connected with the screw cap 133 by threads; a through hole 141 is provided on the interlayer 14; the through hole 141 connects the No. 1 water storage chamber 12 and the No. 2 water storage chamber 13; when working, close the No. 1 seal 111 and the No. 2 seal 121, turn the position of the storage chamber 11 to the top of the No. 1 water storage chamber 12 and the No. 2 water storage chamber 13, rotate the screw cap 133, open the nozzle head 132, fill the No. 2 water storage chamber 13 with water, and after filling 4 / 5 of the height of water, screw the screw cap 133 on the nozzle head 132 to close the No. 2 water filling chamber; By providing the suction nozzle 132 and the screw cap 133, water can be directly injected into the water storage chamber without passing through the storage chamber 11, so as to prevent the inner wall of the storage chamber 11 from being wetted and affecting the storage time of the fruit; when injecting water into the second water storage chamber 13, the injected water can enter the first water storage chamber 12 through the through hole 141; the water body is kept to circulate in the entire packaging bag to prevent the situation where the difference in the amount of water in the two water storage chambers is too large and affects the fruit washing effect; after the fruit is washed, the bag body 1 is twisted up, and then the screw cap 133 is opened to let the water flow out, and the outflowing water can wash the hands of the staff, so that the staff can take the fruit with their hands for consumption, thereby ensuring the cleanliness of the edible fruit. Before this design, the bag body 1 needs to be used as a glove to take the fruit through the bag body 1, and the process is inconvenient.

[0036] As a specific embodiment of the present invention, the through hole 141 is arranged on a side of the partition 14 away from the storage chamber 11; during operation, when water is injected into the No. 2 water storage chamber 13, after the water is injected to a certain height, the water will flow into the No. 1 water storage chamber 12 through the through hole 141, so that before pressing the No. 1 water storage chamber 12 and the No. 2 water storage chamber 13, the water volume in the No. 1 water storage chamber 12 and the No. 2 water storage chamber 13 is kept balanced; when alternately pressing the No. 1 water storage chamber 12 and the No. 2 water storage chamber 13, the outer wall of the degradable and environmentally friendly PE packaging bag is pressed with a finger to achieve the purpose of blocking the through hole 141, thereby ensuring the amount of water flowing into the storage chamber 11 and improving the cleaning effect of the fruit in the storage chamber 11.

[0037] As a specific embodiment of the present invention, a flexible ball 122 is fixedly connected at the center of the inner wall of the first water storage chamber 12 and the second water storage chamber 13; when working, the material of the flexible ball 122 is preferably sponge, and the two flexible balls 122 are pressed alternately by hand. Since the flexible balls 122 themselves have supporting force, the water body will not be crushed or squeezed through the seal; since the flexible balls 122 themselves have elasticity and can be reset in time, sufficient reserved space is left when filling the first water storage chamber 12 and the second water storage chamber 13 with water; since the flexible balls 122 are made of sponge material, they can be flattened when under pressure, which is convenient for transportation and sale.

[0038] A method for making a degradable and environmentally friendly PE packaging bag, which is applicable to the above-mentioned degradable and environmentally friendly PE packaging bag, and the steps of the method are as follows:

[0039] S1: First, polyethylene is added into a reactor for heating, and the melted liquid polyethylene is taken out after heating;

[0040] S2: Secondly, the biodegradable plastic masterbatch is put into the liquid polyethylene in S1 and stirred. After stirring evenly, the solid-liquid mixture is added to the film blowing machine, the film blowing machine is turned on, the solid-liquid mixture in the film blowing machine is maintained within a suitable temperature range, and then the mixture is extruded to form an unsealed film;

[0041] S3: Again, the plastic film in S2 is cut to make its edges flat, and then the bottom and sides of the plastic film are sealed with a sealing machine, and then the middle part of one side of the plastic film is thermoplastic extruded, leaving a through hole 141;

[0042] S4: Finally, the plastic bag obtained in S3 is set at the set position with seal No. 1 111, seal No. 2 121, seal No. 3 131, nozzle head 132 and screw cap 133 purchased on the market before, seal No. 1 111 is thermoplastically bonded on the top of the plastic bag, seal No. 2 121 and seal No. 3 131 are installed in the middle of the plastic bag, nozzle head 132 is installed on one side of the right end of the plastic bag by thermoplastic, screw cap 133 is threadedly connected to nozzle head 132, and flexible ball 122 is fixed on the lower side of the plastic bag with glue, so as to make a degradable and environmentally friendly PE packaging bag.

[0043] The specific workflow is as follows:

[0044] Therefore, when using the present invention, the staff first opens the No. 1 seal 111, then opens the No. 2 seal 121 and the No. 3 seal 131, fills the No. 1 water storage chamber 12 and the No. 2 water storage chamber 13 with water, and at the same time adds 4-5g of edible salt to dissolve with the added water, and then injects water to 4 / 5 of the height of the No. 1 water storage chamber 12 and the No. 2 water storage chamber 13, closes the No. 2 seal 121 and the No. 3 seal 131, and then puts the fruit into the storage chamber 11, closes the No. 1 seal 111 and reserves a 0.5-1cm opening; in order to eat the freshly washed fruit and prevent bacterial infection on the hands and the outside world, at this time, pinch the two outer walls of the bag body 1, manually open the No. 2 seal 121 and the No. 3 seal 131, and then find the degradable and environmentally friendly PE packaging bag A slope is placed at an angle of 30-45, so that the No. 1 water storage chamber 12 and the No. 2 water storage chamber 13 are relative to the bottom of the storage area, and then the No. 1 water storage chamber 12 and the No. 2 water storage chamber 13 are pressed alternately continuously, first pressing the No. 1 water storage chamber 12, the water in the No. 1 water storage chamber 12 enters the storage chamber 11, after the fruit is rinsed and washed, the water will flow into the No. 2 water storage chamber 13 under the action of gravity, and then the No. 2 water storage chamber 13 is pressed, the water in the No. 2 water storage chamber 13 enters the storage chamber 11 to wash the fruit, and after washing, it flows into the No. 1 water storage chamber 12 under the action of gravity, realizing the reciprocating flow of water in the entire bag body 1. In order to ensure that the fruit is clean, the staff can gently rub the fruit through the bag body 1 during the water flow impacting the fruit. , and at the same time cooperate with the impact of water flow on the fruit, so that the purpose of washing the fruit can be achieved; after washing, the degradable and environmentally friendly PE packaging bag is picked up, which can play the effect of drying the storage cavity 11, and the water will flow back into the No. 1 water storage cavity 12 and the No. 2 water storage cavity 13. During the process of water flowing back to the No. 1 water storage cavity 12 and the No. 2 water storage cavity 13, impurities will also be brought in together, ensuring the cleanliness of the fruit surface; corresponding to the prior art, water and fruit are taken separately to the picnic place, and part of the water needs to be wasted for washing to ensure the cleanliness of the hands. At the same time, it is inevitable that bacteria will be contaminated when washing the fruit with hands, affecting the health of the staff; the salt added to the water also has a bactericidal effect; the material of the flexible net 112 is preferably PE plastic, and the water and fruit are placed in the packaging bag After washing the fruits and picking up the packaging bag, the fruits will be blocked by the plastic net to prevent the fruits from rolling into the No. 1 water storage chamber 12 and the No. 2 water storage chamber 13, so that the fruits will not be directly soaked in water and affect the taste; close the No. 1 seal 111 and the No. 2 seal 121, flip the position of the storage chamber 11 to the top of the No. 1 water storage chamber 12 and the No. 2 water storage chamber 13, turn the rotary cover 133, open the suction nozzle head 132, and fill the No. 2 water storage chamber 13 with water. After filling 4 / 5 of the height of water, screw the rotary cover 133 on the suction nozzle head 132 to close the No. 2 water filling chamber; by providing the suction nozzle head 132 and the rotary cover 133, water can be directly injected into the water storage chamber without passing through the storage chamber 11, so as to prevent the inner wall of the storage chamber 11 from being wetted and affecting the storage time of the fruits;When the No. 2 water storage chamber 13 is filled with water, the injected water can enter the No. 1 water storage chamber 12 through the through hole 141; the water body is kept circulating in the entire packaging bag to prevent the situation where the water volume difference in the two water storage chambers is too large and affects the fruit washing effect; after the fruit is washed, the bag body 1 is twisted up, and then the screw cap 133 is opened to let the water flow out. The flowing water can wash the hands of the staff, so that the staff can take the fruit for consumption with their hands, ensuring the cleanliness of the edible fruit. Before this design, the bag body 1 needs to be used as a glove to take the fruit across the bag body 1, and the process is inconvenient; when the No. 2 water storage chamber 13 is filled with water, after the water is injected to a certain height, the water will flow into the No. 1 water storage chamber 12 through the through hole 141, realizing that before pressing the No. 1 water storage chamber 12 and the No. 2 water storage chamber 13 , the water volume in the No. 1 water storage chamber 12 and the No. 2 water storage chamber 13 is kept balanced; when pressing the No. 1 water storage chamber 12 and the No. 2 water storage chamber 13 alternately, the outer wall of the degradable and environmentally friendly PE packaging bag is pressed with fingers to block the through hole 141, ensuring the amount of water flowing into the storage chamber 11, and improving the washing effect of the fruit in the storage chamber 11; the material of the flexible ball 122 is preferably sponge, and the two flexible balls 122 are pressed alternately by hand. Since the flexible balls 122 themselves have supporting force, the water body will not be crushed or squeezed through the seal; since the flexible balls 122 themselves have elasticity and can be reset in time, sufficient reserved space is left when filling the No. 1 water storage chamber 12 and the No. 2 water storage chamber 13 with water; since the flexible balls 122 are made of sponge material, they can be flattened when under pressure, which is convenient for transportation and sales. ;

[0045] The basic principles, main features and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which shall fall within the scope of the present invention to be protected. The scope of protection of the present invention shall be defined by the attached claims and their equivalents.

Claims

1. A degradable and environmentally friendly PE packaging bag, comprising a bag body (1) and a No. 1 seal (111), characterized in that: The bag body (1) is divided into a storage chamber (11), a first water storage chamber (12) and a second water storage chamber (13); the storage chamber (11) and the first water storage chamber (12) are sealed and connected via a second seal (121), and the storage chamber (11) and the second water storage chamber (13) are sealed and connected via a third seal (131); the first water storage chamber (12) and the second water storage chamber (13) are separated by a partition (14); the volume ratio of the storage chamber (11), the first water storage chamber (12) and the second water storage chamber (13) is 2:1:1; A flexible net (112) is provided on a side of the storage cavity (11) away from the No. 1 seal (111); the flexible net (112) is fixedly connected to two inner side walls of the storage cavity (11); A suction nozzle (132) and a screw cap (133) are provided on a side of the second water storage chamber (13) away from the first water storage chamber (12); threads are distributed on the outer surface of the suction nozzle (132); one end of the suction nozzle (132) is connected to the second water storage chamber (13), and the other end is connected to the screw cap (133) through threads; a through hole (141) is provided on the partition (14); the through hole (141) connects the first water storage chamber (12) and the second water storage chamber (13); The through hole (141) is arranged on a side of the partition (14) away from the storage cavity (11); A flexible ball (122) is fixedly connected at the center of the inner wall of the first water storage chamber (12) and the second water storage chamber (13); During operation, the flexible balls (122) are made of sponge. The two flexible balls (122) are pressed alternately by hand. Since the flexible balls (122) have a supporting force, the water body will not be crushed or squeezed through the seal. Since the flexible balls (122) have elasticity and can be reset in time, sufficient reserved space is left when the first water storage chamber (12) and the second water storage chamber (13) are filled with water. Since the flexible balls (122) are made of sponge, they can be flattened when under pressure, which is convenient for transportation and sale.

2. A method for making a degradable and environmentally friendly PE packaging bag, which is applicable to the degradable and environmentally friendly PE packaging bag according to claim 1, characterized in that: The steps of the preparation method are as follows: S1: first, polyethylene is added into a reaction kettle for heating, and the melted liquid polyethylene is taken out after heating; S2: Secondly, the biodegradable plastic masterbatch is put into the liquid polyethylene in S1 and stirred. After stirring evenly, the solid-liquid mixture is added to the film blowing machine, the film blowing machine is turned on, the solid-liquid mixture in the film blowing machine is maintained within a suitable temperature range, and then the mixture is extruded to form an unsealed film; S3: again, cutting the plastic film in S2 to make its edges smooth, then sealing the bottom and sides of the plastic film with a sealing machine, and then thermoplastic extruding the middle of one side of the plastic film, leaving a through hole (141); S4: Finally, the plastic bag obtained in S3 is set at the set position with seal No. 1 (111), seal No. 2 (121), seal No. 3 (131), nozzle head (132) and screw cap (133) purchased from the market before, seal No. 1 (111) is thermoplastically bonded on the top of the plastic bag, seal No. 2 (121) and seal No. 3 (131) are installed in the middle of the plastic bag, nozzle head (132) is thermoplastically installed on one side of the right end of the plastic bag, screw cap (133) is threadedly connected to the nozzle head (132), and the flexible ball (122) is fixedly connected to the lower side of the plastic bag with glue, thereby making a degradable and environmentally friendly PE packaging bag.

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