Biodegradable PLA environment-friendly plastic bag

Abstract

The utility model belongs to the technical field of environment-friendly plastic bags, and particularly relates to a biodegradable PLA environment-friendly plastic bag which comprises a bag body assembly, the bottom of the bag body assembly is fixedly connected with a liquid drainage assembly, and the top of the bag body assembly is fixedly connected with a lifting assembly. Through the structural design that the environment-friendly plastic bag is prepared from the polylactic acid layer and the polyhydroxyvalerate layer, good biodegradability is achieved, the environment-friendly plastic bag can be completely degraded by microorganisms in the nature after being used, carbon dioxide and water are finally generated, and the environment is not polluted, so that the function of protecting the environment is very beneficial, the problem that the organisms are difficult to decompose is solved, and the environment-friendly plastic bag is suitable for popularization and application. The use efficiency of the environment-friendly plastic bag is improved, by means of the structural design of the liquid drainage pipe, the filter plate and the filter holes, the function of filtering moisture of a bearing object is achieved, the problem that the environment-friendly bag is broken due to the fact that moisture is doped in the environment-friendly bag is solved, and the adaptability of the environment-friendly bag to bearing various objects is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of environmentally friendly plastic bags, in particular to a biodegradable PLA environmentally friendly plastic bag. Background Art

[0002] Environmentally friendly plastic bags are the abbreviation of various biodegradable plastic bags. With the development of science and technology, various materials that can replace traditional PE plastics have emerged, including PLA, PHAS, PBA, PBS and other polymer materials. They can all replace traditional PE plastic bags. Environmentally friendly plastic bags have been widely used: supermarket shopping bags, roll fresh-keeping bags, ground films, etc. have been widely used in China.

[0003] Existing technologies, such as: CN217416643U, a biodegradable PLA environmentally friendly plastic bag, is horizontally installed in the environmentally friendly plastic bag body through an interlayer cloth, and the internal space of the environmentally friendly plastic bag body is divided into several parts, which is convenient for classifying and packing items. The covering cloth is installed on the environmentally friendly plastic bag body to prevent dust from entering the environmentally friendly plastic bag body. The environmentally friendly plastic bag body is first flattened longitudinally, rolled up from the upper end of the environmentally friendly plastic bag body, and wrapped around the environmentally friendly plastic bag body through a binding belt, which is convenient for the environmentally friendly plastic bag body to be stored.

[0004] However, this environmentally friendly plastic bag still has certain shortcomings when used. There are many specific problems in this environmentally friendly plastic bag that cannot be solved, and it is extremely difficult to promote it. The prospects are not optimistic. The reason is that the degradable plastic bag has low load-bearing capacity and cannot meet customers' requirements for carrying more things and repeated use. The degradable plastic bag is dull and yellow in color and has low transparency, giving people a feeling of being unclean and ugly, making it unsafe to use. It also ignores the characteristics of environmentally friendly plastic bags in terms of heat resistance, water resistance and mechanical strength.

[0005] Therefore, a biodegradable PLA environmentally friendly plastic bag is proposed to address the above problems. Utility Model Content

[0006] In order to make up for the fact that the environmentally friendly plastic bag has many specific problems that cannot be solved, it is extremely difficult to promote it and the prospect is not optimistic. The reason is that the degradable plastic bag has low load-bearing capacity and cannot meet the customers' requirements for more things and repeated use. The degradable plastic bag is dull and yellow in color and has low transparency, giving people a feeling of being unclean and ugly, making it unsafe to use. It also ignores the characteristics of the environmentally friendly plastic bag in terms of heat resistance, water resistance and mechanical strength. The utility model proposes a biodegradable PLA environmentally friendly plastic bag.

[0007] The technical solution adopted by the utility model to solve the technical problem is: a biodegradable PLA environmentally friendly plastic bag, comprising a bag body component, the bottom of the bag body component is fixedly connected to a drainage component, and the top of the bag body component is fixedly connected to a lifting component;

[0008] The bag assembly comprises a protective outer layer, a polylactic acid layer is fixedly connected to the side of the protective outer layer, a polyhydroxyvalerate layer is fixedly connected to the side of the polylactic acid layer, a polycaprolactone layer is fixedly connected to the side of the polyhydroxyvalerate layer, and a polyester biodegradable plastic layer is fixedly connected to the side of the polycaprolactone layer;

[0009] The drainage assembly includes a water storage tank, a drainage pipe is fixedly connected to the side of the water storage tank, a plug is arranged on the side of the drainage pipe, a filter plate is fixedly connected to the inside of the water storage tank, and filter holes are opened inside the filter plate.

[0010] Preferably, a polyvinyl alcohol layer is fixedly connected to a side of the polyester biodegradable plastic layer, and an aliphatic polycarbonate layer is fixedly connected to a side of the polyvinyl alcohol layer.

[0011] Preferably, a carbon dioxide resin layer is fixedly connected to a side surface of the aliphatic polycarbonate layer, and a heat-insulating inner layer is fixedly connected to a side surface of the carbon dioxide resin layer.

[0012] Preferably, a support seat is fixedly connected to the bottom of the water storage tank, and four support seats are provided.

[0013] Preferably, the drain pipe extends to the interior of the water storage tank, and a plurality of filter holes are provided.

[0014] Preferably, the lifting assembly includes drawstrings, and four drawstrings are provided.

[0015] Preferably, a fixing hoop is fixedly connected inside the drawstring, and two fixing hoop are provided.

[0016] Preferably, a positioning hole is provided inside the fixing hoop, and a plurality of positioning holes are provided therein.

[0017] The utility model is beneficial in that:

[0018] 1. The utility model realizes good biodegradability by using a polylactic acid layer and a polyhydroxyvalerate layer to make an environmentally friendly plastic bag. After use, it can be completely degraded by microorganisms in nature, and finally generates carbon dioxide and water without polluting the environment. This is a very beneficial function for protecting the environment, solves the problem of biological difficulty in decomposition, and improves the use efficiency of environmentally friendly plastic bags;

[0019] 2. The utility model realizes the function of filtering the moisture of the carried object by utilizing the structural design of the drainage pipe, filter plate and filter holes, solves the problem of the load-bearing rupture of the environmental protection bag caused by the mixing of moisture inside the environmental protection bag, and improves the adaptability of the environmental protection bag to carry various items. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the decomposition of materials used to make the environmentally friendly plastic bag of the utility model;

[0023] Figure 3 This is a schematic diagram of the structure of the filter and drainage assembly of the utility model;

[0024] Figure 4 It is a schematic diagram of the structure of the lifting component of the utility model.

[0025] In the figure: 1. Bag body assembly; 101. Protective outer layer; 102. Polylactic acid layer; 103. Polyhydroxyvalerate layer; 104. Polycaprolactone layer; 105. Polyester biodegradable plastic layer; 106. Polyvinyl alcohol layer; 107. Aliphatic polycarbonate layer; 108. Carbon dioxide resin layer; 109. Insulating inner layer; 2. Drainage assembly; 201. Water storage tank; 202. Support seat; 203. Drainage pipe; 204. Plug; 205. Filter plate; 206. Filter hole; 3. Pulling assembly; 301. Pull belt; 302. Fixing hoop; 303. Positioning hole. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] The following is combined with Figure 1-Figure 4 To further explain this application in detail,

[0028] The present application embodiment discloses a biodegradable PLA environmentally friendly plastic bag. Figure 1 and Figure 4 A biodegradable PLA environmentally friendly plastic bag comprises a bag body component 1, a drainage component 2 is fixedly connected to the bottom of the bag body component 1, and a lifting component 3 is fixedly connected to the top of the bag body component 1;

[0029] Reference Figure 1, Figure 2 and Figure 3 The bag body component 1 includes a protective outer layer 101, a polylactic acid layer 102 is fixedly connected to the side of the protective outer layer 101, a polyhydroxyvalerate layer 103 is fixedly connected to the side of the polylactic acid layer 102, a polycaprolactone layer 104 is fixedly connected to the side of the polyhydroxyvalerate layer 103, and a polyester biodegradable plastic layer 105 is fixedly connected to the side of the polycaprolactone layer 104. The structural design of the environmentally friendly plastic bag made of the polylactic acid layer 102 and the polyhydroxyvalerate layer 103 achieves good biodegradability. After use, it can be completely degraded by microorganisms in nature, and finally generates carbon dioxide and water, which does not pollute the environment. This is a very beneficial function for protecting the environment, solves the problem of biological difficulty in decomposition, and improves the use efficiency of environmentally friendly plastic bags;

[0030] The drainage component 2 includes a water storage tank 201, a drainage pipe 203 is fixedly connected to the side of the water storage tank 201, a plug 204 is provided on the side of the drainage pipe 203, a filter plate 205 is fixedly connected to the inside of the water storage tank 201, and filter holes 206 are provided inside the filter plate 205. The structural design of the drainage pipe 203, the filter plate 205 and the filter holes 206 is used to achieve the function of filtering the moisture of the carried object, solve the problem of the load-bearing rupture of the environmentally-friendly bag caused by the mixing of moisture inside the environmentally-friendly bag, and improve the adaptability of the environmentally-friendly bag to carry various items.

[0031] The side of the polyester biodegradable plastic layer 105 is fixedly connected to a polyvinyl alcohol layer 106, and the side of the polyvinyl alcohol layer 106 is fixedly connected to an aliphatic polycarbonate layer 107. The polyester biodegradable plastic layer 105 has the advantages of good heat resistance, low processing conditions and easy storage.

[0032] The side of the aliphatic polycarbonate layer 107 is fixedly connected to the carbon dioxide resin layer 108, and the side of the carbon dioxide resin layer 108 is fixedly connected to the insulating inner layer 109. The aliphatic polycarbonate layer 107 has high strength and elastic modulus, high impact strength, a wide operating temperature range, high transparency and free dyeing, low molding shrinkage, good dimensional stability, and excellent fatigue resistance.

[0033] The bottom of the water storage tank 201 is fixedly connected with a support seat 202, and four support seats 202 are provided. The support seat 202 can prevent the bottom of the environmentally friendly plastic bag from being corroded, thereby increasing the service life of the environmentally friendly plastic bag.

[0034] The drain pipe 203 extends to the interior of the water storage tank 201 , and a plurality of filter holes 206 are provided. A plurality of filter holes 206 can increase the filtering speed.

[0035] Reference Figure 1 and Figure 4The pulling component 3 includes a drawstring 301, and four drawstrings 301 are provided. Two drawstrings 301 can increase the convenience of pulling the environmentally friendly plastic bag.

[0036] A fixing hoop 302 is fixedly connected inside the drawstring 301 . Two fixing hoop 302 are provided. The fixing hoop 302 can increase the toughness of the drawstring 301 , so that the drawstring 301 is not easy to break.

[0037] A plurality of positioning holes 303 are provided inside the fixing hoop 302 , and the positioning holes 303 are auxiliary for lifting the environmentally friendly plastic bag.

[0038] Working principle: When using the environmentally friendly plastic bag, the two fixing hoops 302 inside the drawstring 301 can be used to lift the environmentally friendly plastic bag. When items containing moisture are loaded inside the environmentally friendly plastic bag, the moisture will be filtered from the filter holes 206 on the filter plate 205 into the water storage tank 201. The plug 204 can be opened to discharge the moisture from the drain pipe 203 for easy use next time.

[0039] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A biodegradable PLA environmentally friendly plastic bag, comprising a bag body component (1), characterized in that: The bottom of the bag body component (1) is fixedly connected to a drainage component (2), and the top of the bag body component (1) is fixedly connected to a lifting component (3); The bag body assembly (1) comprises a protective outer layer (101), a polylactic acid layer (102) is fixedly connected to a side surface of the protective outer layer (101), a polyhydroxyvalerate layer (103) is fixedly connected to a side surface of the polylactic acid layer (102), a polycaprolactone layer (104) is fixedly connected to a side surface of the polyhydroxyvalerate layer (103), and a polyester biodegradable plastic layer (105) is fixedly connected to a side surface of the polycaprolactone layer (104); The liquid discharge assembly (2) comprises a water storage tank (201), a liquid discharge pipe (203) is fixedly connected to the side of the water storage tank (201), a plug (204) is provided on the side of the liquid discharge pipe (203), a filter plate (205) is fixedly connected to the inside of the water storage tank (201), and filter holes (206) are provided inside the filter plate (205).

2. The biodegradable PLA environmentally friendly plastic bag according to claim 1, characterized in that: A polyvinyl alcohol layer (106) is fixedly connected to the side of the polyester biodegradable plastic layer (105), and an aliphatic polycarbonate layer (107) is fixedly connected to the side of the polyvinyl alcohol layer (106).

3. The biodegradable PLA environmentally friendly plastic bag according to claim 2, characterized in that: A carbon dioxide resin layer (108) is fixedly connected to the side surface of the aliphatic polycarbonate layer (107), and a heat-insulating inner layer (109) is fixedly connected to the side surface of the carbon dioxide resin layer (108).

4. The biodegradable PLA environmentally friendly plastic bag according to claim 1, characterized in that: The bottom of the water storage tank (201) is fixedly connected to a support seat (202), and four support seats (202) are provided.

5. The biodegradable PLA environmentally friendly plastic bag according to claim 1, characterized in that: The liquid discharge pipe (203) extends to the interior of the water storage tank (201), and a plurality of filter holes (206) are provided.

6. The biodegradable PLA environmentally friendly plastic bag according to claim 1, characterized in that: The lifting assembly (3) comprises a drawstring (301), and four drawstrings (301) are provided.

7. The biodegradable PLA environmentally friendly plastic bag according to claim 6, characterized in that: A fixing hoop (302) is fixedly connected to the interior of the drawstring (301), and two fixing hoop (302) are provided.

8. The biodegradable PLA environmentally friendly plastic bag according to claim 7, characterized in that: A positioning hole (303) is provided inside the fixing hoop (302), and a plurality of positioning holes (303) are provided.

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