阅读说明：本技术 一种环保抑菌塑料袋 (Environment-friendly antibacterial plastic bag ) 是由 王洛 陈远 于 2020-04-30 设计创作，主要内容包括：本发明属于高分子材料技术领域,具体的说是一种环保抑菌塑料袋,包括袋体、提手和收纳块；所述袋体为单面开口的长方体结构；所述收纳块数量为四；所述收纳块均为“L”形设计；所述收纳块均与袋体固连；所述收纳块内均开设有第一凹槽；所述第一凹槽“L”形设计且相邻两收纳块上开设的第一凹槽对称设计；所述第一凹槽内均转动连有转动杆；相邻两所述转动杆之间均固连有弹力带；所述收纳块内均开设有第二凹槽；所述第二凹槽内固连有增强带；相邻两所述收纳块相对一侧均开设有卡槽；相邻两所述收纳块相对一侧均固连有卡块；本发明通过将可降解的植物纤维使用胶质层进行包裹、降低降解速率,从而增强塑料袋力学性质、延长塑料袋使用寿命。(The invention belongs to the technical field of high polymer materials, and particularly relates to an environment-friendly antibacterial plastic bag which comprises a bag body, a handle and a containing block; the bag body is of a cuboid structure with a single-side opening; the number of the containing blocks is four; the accommodating blocks are all designed in an L shape; the accommodating blocks are fixedly connected with the bag body; the containing blocks are internally provided with first grooves; the first grooves are designed in an L shape, and the first grooves formed in the two adjacent receiving blocks are symmetrically designed; rotating rods are rotatably connected in the first grooves; elastic bands are fixedly connected between every two adjacent rotating rods; the containing blocks are internally provided with second grooves; a reinforcing belt is fixedly connected in the second groove; the opposite sides of two adjacent accommodating blocks are provided with clamping grooves; clamping blocks are fixedly connected to the opposite sides of the two adjacent accommodating blocks; the degradable plant fibers are wrapped by the colloidal layer, so that the degradation rate is reduced, the mechanical property of the plastic bag is enhanced, and the service life of the plastic bag is prolonged.)

1. An antibacterial plastic bag of environmental protection which characterized in that: the environment-friendly antibacterial plastic bag is prepared from the following raw materials:

30-35 parts of polyvinyl chloride resin, 2-3 parts of Arabic gum powder, 5-6 parts of corn starch, 0.5-0.6 part of phthalate, 5-8 parts of epoxy resin, 1-1.2 parts of stearic acid, 8-12 parts of plant fiber bundles, 20-25 parts of ethanol and 5-6 parts of acetic acid;

the preparation method of the environment-friendly antibacterial plastic bag comprises the following steps:

s1: introducing polyvinyl chloride resin and epoxy resin into a crushing device, crushing under the impact of high-speed inert gas flow, introducing into a reaction kettle after crushing, sequentially adding Arabic gum powder, corn starch, phthalate and stearic acid into the reaction kettle, and uniformly stirring and mixing at normal temperature to obtain mixed powder for later use;

s2: placing the plant fiber bundles in a mixed solution of ethanol and acetic acid, preserving heat at 45-50 ℃, soaking and softening for 5-6 hours, naturally drying the plant fiber bundles after soaking, and twisting into silk threads with the diameter of 0.1-0.15 mm;

s3: heating the mixed powder in the S1 to 140-160 ℃ to melt the mixed powder into colloid, enabling the yarn in the S2 to pass through the colloid at a constant speed, uniformly spraying talcum powder on the surface of the yarn passing through the molten colloid, and immediately cooling and solidifying the yarn by using inert gas flow after spraying the talcum powder;

s4: weaving the solidified silk threads at the S3 position into base cloth, introducing the base cloth into a press, controlling the temperature of an iron plate of the press to be 80-100 ℃ and the pressure to be 20-30 KG, performing compression molding on the base cloth, and cutting and bonding the compressed base cloth to obtain the environment-friendly antibacterial plastic bag.

2. An environment-friendly bacteriostatic plastic bag according to claim 1, characterized in that: wherein the plant fiber bundles in the raw materials are hemp fibers, ramie fibers, sisal fibers, astragalus fibers and coconut shell fibers according to the weight ratio of 1: 2: 1: 3: 3, and mixing the fiber bundles.

3. An environment-friendly bacteriostatic plastic bag according to claim 1, characterized in that: wherein silver bromide nano-particles are also added in the raw materials.

4. An environment-friendly bacteriostatic plastic bag according to claim 1, characterized in that: the environment-friendly antibacterial plastic bag comprises a bag body (1), a handle (2) and a containing block (3); the bag body (1) is of a cuboid structure with a single-side opening; the number of the accommodating blocks (3) is four; the accommodating blocks (3) are all designed in an L shape; the accommodating blocks (3) are fixedly connected with the bottom of the bag body (1); the accommodating blocks (3) are internally provided with first grooves (31); the first grooves (31) are designed in an L shape, and the first grooves (31) formed in the two adjacent accommodating blocks (3) are symmetrically designed; rotating rods (32) are rotatably connected in the first grooves (31); the number of the rotating rods (32) in the same first groove (31) is two, and the rotating rods are respectively positioned at two ends of the L shape of the first groove (31); elastic bands (33) are fixedly connected between every two adjacent rotating rods (32); second grooves (34) are formed in the accommodating blocks (3); a reinforcing belt (35) is fixedly connected in the second groove (34); the reinforcing strip (35) is of "X" -shaped design; clamping grooves (36) are formed in opposite sides of every two adjacent accommodating blocks (3); clamping blocks (37) are fixedly connected to the opposite sides of the two adjacent accommodating blocks (3); the clamping groove (36) is matched with the clamping block (37); the handles (2) are fixedly connected to two sides of the opening of the bag body (1); a buffer pad (4) is sleeved on the outer surface of the handle (2); the buffer pad (4) is made of cow leather material.

5. An environment-friendly bacteriostatic plastic bag according to claim 1, characterized in that: one side of the accommodating block (3) far away from the bag body (1) is fixedly connected with a reinforcing rib (5); the reinforcing ribs (5) are made of soft thread rope materials; the reinforcing ribs (5) are fixedly connected to the outer surface of the bag body (1); the reinforcing ribs (5) extend into the cushion pad (4) and penetrate through the cushion pad (4).

6. An environment-friendly bacteriostatic plastic bag according to claim 1, characterized in that: folding layers (6) are arranged on two side walls of the bag body (1); the bag body (1) is fixedly connected with a fixing strip (61) at the outer side of the folding layer (6); the fixing strip (61) is made of a magnetic material; the position of the accommodating block (3) opposite to the fixing strip (61) is fixedly connected with a permanent magnet (62).

Technical Field

The invention belongs to the technical field of high polymer materials, and particularly relates to an environment-friendly antibacterial plastic bag.

Background

Plastic bags are bags made of plastics (common plastics include polyethylene, polypropylene, polyester, nylon and the like) as main raw materials, are essential articles in daily life of people, are often used for containing other articles, are widely used due to the advantages of low price, extremely light weight, large capacity and convenient storage, but are prohibited from being produced and used by some countries due to the defects of extremely long degradation period and difficult treatment of the plastic bags, so that some plastic bags with high degradation rate are put into use, but the plastic bags with high degradation rate have short service lives, so the plastic bags with good degradability and mechanical property and capable of being used for a long time are more and more popular with people.

An environment-friendly antibacterial plastic bag and a preparation method thereof, which are issued by Chinese patent, the patent numbers: 2018110644855, which is composed of the following raw materials by weight: 200 parts of high-density polyethylene 160-one-wall material, 3-4 parts of triethanolamine, 2-5 parts of stearic acid, 0.1-0.2 part of butyltin trioctoate, 20-30 parts of ester solution, 2-4 parts of epoxy octyl stearate, 0.01-0.02 part of catalyst, kh5500.4-1 part of silane coupling agent and 14-20 parts of titanium dioxide.

In view of the above, the companies develop an environmentally friendly antibacterial plastic bag swimsuit which has degradable performance but can be stored properly for long-term use to solve the above problems.

Disclosure of Invention

In order to make up for the defects of the prior art and solve the problems of short service life and insufficient toughness of the degradable plastic bag in the prior art, the invention provides an environment-friendly antibacterial plastic bag.

The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to an environment-friendly antibacterial plastic bag which is prepared from the following raw materials:

30-35 parts of polyvinyl chloride resin, 2-3 parts of Arabic gum powder, 5-6 parts of corn starch, 0.5-0.6 part of phthalate, 5-8 parts of epoxy resin, 1-1.2 parts of stearic acid, 8-12 parts of plant fiber bundles, 20-25 parts of ethanol and 5-6 parts of acetic acid;

the preparation method of the environment-friendly antibacterial plastic bag comprises the following steps:

s1: introducing polyvinyl chloride resin and epoxy resin into a crushing device, crushing under the impact of high-speed inert gas flow, introducing into a reaction kettle after crushing, sequentially adding Arabic gum powder, corn starch, phthalate and stearic acid into the reaction kettle, and uniformly stirring and mixing at normal temperature to obtain mixed powder for later use; the polyvinyl chloride resin and the epoxy resin are quickly crushed into uniform powdery particles under the cooling action of inert gas, and then are uniformly mixed with the gum arabic powder, the corn starch, the phthalate and the stearic acid at low temperature, so that the problem that the prepared product has low performance due to nonuniform distribution of the components caused by different bonding coefficients among the components in the mixed powder in a molten state can be effectively avoided;

s2: placing the plant fiber bundles in a mixed solution of ethanol and acetic acid, preserving heat at 45-50 ℃, soaking and softening for 5-6 hours, naturally drying the plant fiber bundles after soaking, and twisting into silk threads with the diameter of 0.1-0.15 mm; firstly, softening and toughening treatment is carried out on plant fiber bundles by ethanol and acetic acid, so that the softness and toughness of the plant fibers are effectively enhanced, twisting is carried out after softening to form silk threads, and the prepared silk threads have better mechanical properties by utilizing the winding between the fibers;

s3: heating the mixed powder in the S1 to 140-160 ℃ to melt the mixed powder into colloid, enabling the yarn in the S2 to pass through the colloid at a constant speed, uniformly spraying talcum powder on the surface of the yarn passing through the molten colloid, and immediately cooling and solidifying the yarn by using inert gas flow after spraying the talcum powder; heating and melting the mixed powder to 140-160 ℃, wherein the viscosity of the molten colloid is smooth, the silk thread penetrates through the molten colloid at a constant speed, the molten colloid is uniformly coated on the surface of the silk thread and is immediately condensed after being adhered by the talcum powder, the cooled colloid layer on the surface of the silk thread has stronger softness due to the softening action of the stearic acid in the molten colloid, and the talcum powder adhered to the surface can effectively improve the weather resistance and oxidation resistance of the silk thread;

s4: weaving the solidified silk yarns at the S3 position into base cloth, introducing the base cloth into a press, controlling the temperature of an iron plate of the press to be 80-100 ℃ and the pressure to be 20-30 KG, pressing and molding the base cloth, and cutting and bonding the pressed base cloth to obtain the environment-friendly antibacterial plastic bag; the prepared silk threads are used for weaving and forming, so that the tensile resistance of the base cloth is effectively enhanced, a press machine is used for heating and pressing to melt the colloidal layer on the surface of the silk threads, so that gaps between the silk threads are blocked, and meanwhile, after the press machine is used for pressing, the thickness of the base cloth is reduced, the density of the base cloth is increased, so that the mechanical property of the base cloth is effectively enhanced, and the prepared environment-friendly antibacterial plastic bag is firmer and more durable;

the gum arabic powder, the corn starch and the lignin fiber bundles added in the raw materials are all natural organic matters and have high-quality microbial degradation performance, the gum arabic powder, the corn starch and the lignin fiber bundles are added into the raw materials, so that the prepared environment-friendly antibacterial plastic bag has microbial decomposition performance, and meanwhile, the gum layer coated on the outer surface of the twisted silk threads of the plant fiber bundles effectively isolates the plant fiber bundles from the outside, so that the plant fiber bundles are protected, the premature self-degradation of the plant fiber bundles serving as a bearing material is avoided, and the service life of the prepared environment-friendly antibacterial plastic bag is short.

Preferably, the plant fiber bundles in the raw materials are hemp fibers, ramie fibers, sisal fibers, astragalus fibers and coconut fibers according to the weight ratio of 1: 2: 1: 3: 3 in the ratio of the total amount of the fiber bundles; the hemp fiber, the ramie fiber, the sisal fiber, the astragalus fiber and the coconut shell fiber which are selected from the raw materials are plant fibers with good toughness, meanwhile, the sisal fiber has strong microbial degradation resistance, the hemp fiber and the ramie fiber are soft, the odor emitted by the astragalus fiber can also effectively inhibit the breeding of bacteria, and the plant fiber silk thread which is manufactured by mixing the hemp fiber and the ramie fiber is soft in texture and extremely strong in toughness, has the specific natural smell of plants, and can effectively generate the functions of expelling insects and inhibiting bacteria.

Preferably, silver bromide nanoparticles are also added into the raw materials;

the silver bromide granule of choosing in the raw materials is a material that effectively restraines bacterial growing harmless to the human body, add the performance that can effectual reinforcing environmental protection antibacterial plastic bag itself possesses of its suppression bacterial growing in the raw materials, silver bromide itself possesses better photocatalytic decomposition's nature simultaneously, add it to the raw materials, can carry out photocatalytic decomposition to the colloidal layer of vegetable fibre silk thread surface cladding effectively, thereby make the plastic bag after the abandonment degrade fast, and it is long to reduce illumination when not abandoning, alright in order to avoid the reduction of plastic bag life.

Preferably, the environment-friendly bacteriostatic plastic bag comprises a bag body, a handle and a containing block; the bag body is of a cuboid structure with a single-side opening; the number of the containing blocks is four; the accommodating blocks are all designed in an L shape; the accommodating blocks are fixedly connected with the bottom of the bag body; the containing blocks are internally provided with first grooves; the first grooves are in L-shaped design, and the first grooves formed in two adjacent receiving blocks are symmetrically designed; rotating rods are rotatably connected in the first grooves; the number of the rotating rods in the same first groove is two, and the rotating rods are respectively positioned at two L-shaped ends of the first groove; elastic belts are fixedly connected between every two adjacent rotating rods; the containing blocks are internally provided with second grooves; a reinforcing belt is fixedly connected in the second groove; the reinforcing belt is designed in an X shape; clamping grooves are formed in opposite sides of every two adjacent accommodating blocks; clamping blocks are fixedly connected to the opposite sides of the two adjacent accommodating blocks; the clamping groove is matched with the clamping block; the handles are fixedly connected to two sides of the opening of the bag body; a buffer pad is sleeved on the outer surface of the handle; the buffer cushion is made of cow leather material;

the degradation performance of the plastic bag is important along with the enhancement of consciousness of protecting the environment of people, most of the plastic bags in the prior art are modified to ensure that the plastic bag has stronger degradation performance, so that the pollution caused by the waste plastic bag is effectively reduced, but the degradation performance of the corresponding plastic bag is enhanced, so that the service life of the plastic bag is shortened, the toughness is poorer, and the plastic bag is easy to damage, so that the waste rate of the plastic bag is higher, the use of a material bag cannot be effectively reduced, when the plastic bag is used in work, the plastic bag which is folded and stored in the storage blocks is opened, the material is loaded into the plastic bag, the four storage blocks are mutually separated under the action of gravity of the plastic bag, so that the elastic belt wound on the rotating rod is stretched and opened, the pressure on the bottom of the plastic bag is gradually increased along with the increase of the material, and the elastic, thereby playing a pressure buffering effect on the bottom of the plastic bag, effectively avoiding the bottom damage caused by overlarge stress of the plastic bag, folding the bag body after the plastic bag is used, when the plastic bag is folded, because the containing blocks are mutually closed under the action of the elastic belt, inserting the clamping blocks on the containing blocks into the clamping grooves to combine the four containing blocks into a whole, then uniformly pressing the folded bag body into the cavity formed by the containing blocks, thereby containing the plastic bag in a light-shielding manner, fixedly connecting the containing blocks and the bag body, integrating the environment-friendly antibacterial plastic bag, avoiding the loss of the containing blocks caused by the separated arrangement, simultaneously effectively matching the woven structure of the bag body by the setting of the elastic belt and the reinforcing belt, enhancing the bearing capacity of the environment-friendly antibacterial plastic bag, reducing the damage probability, effectively prolonging the service life of the environment-friendly antibacterial plastic, and simultaneously reducing the pressure of articles in the environment-friendly antibacterial plastic bag on hands by the buffer layer sleeved outside the handle, the use body feeling of the environment-friendly antibacterial plastic bag is enhanced.

Preferably, the side of the containing block, which is far away from the bag body, is fixedly connected with uniformly distributed reinforcing ribs; the reinforcing ribs are made of soft thread rope materials; the reinforcing ribs are fixedly connected to the outer surface of the bag body; the reinforcing ribs extend into the cushion pad and penetrate through the cushion pad; when the plastic bag is used in the prior art, pressure is mainly concentrated on the bottom and the lifting handle, damage and deformation are very easy to occur to the lifting handle, so that the plastic bag is discarded, the lifting handle, the accommodating block, the reinforcing belt and the elastic belt are integrated through the reinforcing ribs, the pressure concentrated on the lifting handle is dispersed, the resistance of the lifting handle to the pressure can be effectively enhanced, the probability of damage of the lifting handle is effectively reduced, and the environment-friendly antibacterial plastic bag is more durable.

Preferably, folding layers are arranged on two side walls of the bag body; the bag body is positioned on the outer side of the folding layer and fixedly connected with a fixing strip; the fixing strip is made of a magnetic material; the permanent magnet is fixedly connected with the position of the containing block, which is opposite to the fixing strip; in the prior art, the volume of the interior of the opened plastic bag is constant, when articles are few, the plastic bag is too bloated and unattractive, when the articles are many, the packaging cannot be completed, the side face of the bottom of the environment-friendly antibacterial plastic bag is designed to be a folding layer, the folding part is compressed and fixed by utilizing the attraction between the fixing strip and the permanent magnet, when the articles are few, the environment-friendly antibacterial plastic bag is regular and attractive, when the articles are many, the folding layer is opened, the volume of the environment-friendly antibacterial plastic bag is effectively increased, and therefore the environment-friendly antibacterial plastic bag is more comfortable to use.

The invention has the following beneficial effects:

1. according to the environment-friendly antibacterial plastic bag, the silk threads twisted after the plant fiber bundles are softened are coated with the colloidal layer, the raw materials of the colloidal layer are limited, the mechanical property of the colloidal layer is changed, and the environment-friendly antibacterial plastic bag is prepared by weaving and pressing through the silk threads, so that the environment-friendly antibacterial plastic bag has the degradation performance, the service life of the environment-friendly antibacterial plastic bag is effectively prolonged, the prepared environment-friendly antibacterial plastic bag has strong tensile resistance, the mechanical property of the environment-friendly antibacterial plastic bag is superior, and the environment-friendly antibacterial plastic bag is more durable.

2. According to the environment-friendly antibacterial plastic bag, the bag body, the containing block, the elastic band and the reinforcing band are arranged, so that the compression resistance of the environment-friendly antibacterial plastic bag is effectively enhanced, and meanwhile, the breakage probability of the environment-friendly antibacterial plastic bag is effectively reduced through the arrangement of the reinforcing ribs and the lifting handle, so that the environment-friendly antibacterial plastic bag is longer in service life and better in use feeling.

Drawings

The invention will be further explained with reference to the drawings.

FIG. 1 is a flow chart of a method of the present invention;

FIG. 2 is a front view of the bacteriostatic eco-friendly plastic bag;

FIG. 3 is an enlarged view of a portion of FIG. 2 at A;

FIG. 4 is a front view of a housing block;

FIG. 5 is a cross-sectional view of the receiving block;

in the figure: the bag comprises a bag body 1, a handle 2, a containing block 3, a first groove 31, a rotating rod 32, an elastic band 33, a second groove 34, a reinforcing band 35, a clamping groove 36, a clamping block 37, a cushion pad 4, a reinforcing rib 5, a folding layer 6, a fixing strip 61 and a permanent magnet 62.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

As shown in fig. 1 to 5, the environment-friendly bacteriostatic plastic bag is prepared from the following raw materials:

30-35 parts of polyvinyl chloride resin, 2-3 parts of Arabic gum powder, 5-6 parts of corn starch, 0.5-0.6 part of phthalate, 5-8 parts of epoxy resin, 1-1.2 parts of stearic acid, 8-12 parts of plant fiber bundles, 20-25 parts of ethanol and 5-6 parts of acetic acid;

the preparation method of the environment-friendly antibacterial plastic bag comprises the following steps:

s1: introducing polyvinyl chloride resin and epoxy resin into a crushing device, crushing under the impact of high-speed inert gas flow, introducing into a reaction kettle after crushing, sequentially adding Arabic gum powder, corn starch, phthalate and stearic acid into the reaction kettle, and uniformly stirring and mixing at normal temperature to obtain mixed powder for later use; the polyvinyl chloride resin and the epoxy resin are quickly crushed into uniform powdery particles under the cooling action of inert gas, and then are uniformly mixed with the gum arabic powder, the corn starch, the phthalate and the stearic acid at low temperature, so that the problem that the prepared product has low performance due to nonuniform distribution of the components caused by different bonding coefficients among the components in the mixed powder in a molten state can be effectively avoided;

s2: placing the plant fiber bundles in a mixed solution of ethanol and acetic acid, preserving heat at 45-50 ℃, soaking and softening for 5-6 hours, naturally drying the plant fiber bundles after soaking, and twisting into silk threads with the diameter of 0.1-0.15 mm; firstly, softening and toughening treatment is carried out on plant fiber bundles by ethanol and acetic acid, so that the softness and toughness of the plant fibers are effectively enhanced, twisting is carried out after softening to form silk threads, and the prepared silk threads have better mechanical properties by utilizing the winding between the fibers;

s3: heating the mixed powder in the S1 to 140-160 ℃ to melt the mixed powder into colloid, enabling the yarn in the S2 to pass through the colloid at a constant speed, uniformly spraying talcum powder on the surface of the yarn passing through the molten colloid, and immediately cooling and solidifying the yarn by using inert gas flow after spraying the talcum powder; heating and melting the mixed powder to 140-160 ℃, wherein the viscosity of the molten colloid is smooth, the silk thread penetrates through the molten colloid at a constant speed, the molten colloid is uniformly coated on the surface of the silk thread and is immediately condensed after being adhered by the talcum powder, the cooled colloid layer on the surface of the silk thread has stronger softness due to the softening action of the stearic acid in the molten colloid, and the talcum powder adhered to the surface can effectively improve the weather resistance and oxidation resistance of the silk thread;

s4: weaving the solidified silk yarns at the S3 position into base cloth, introducing the base cloth into a press, controlling the temperature of an iron plate of the press to be 80-100 ℃ and the pressure to be 20-30 KG, pressing and molding the base cloth, and cutting and bonding the pressed base cloth to obtain the environment-friendly antibacterial plastic bag; the prepared silk threads are used for weaving and forming, so that the tensile resistance of the base cloth is effectively enhanced, a press machine is used for heating and pressing to melt the colloidal layer on the surface of the silk threads, so that gaps between the silk threads are blocked, and meanwhile, after the press machine is used for pressing, the thickness of the base cloth is reduced, the density of the base cloth is increased, so that the mechanical property of the base cloth is effectively enhanced, and the prepared environment-friendly antibacterial plastic bag is firmer and more durable;

the gum arabic powder, the corn starch and the lignin fiber bundles added in the raw materials are all natural organic matters and have high-quality microbial degradation performance, the gum arabic powder, the corn starch and the lignin fiber bundles are added into the raw materials, so that the prepared environment-friendly antibacterial plastic bag has microbial decomposition performance, and meanwhile, the gum layer coated on the outer surface of the twisted silk threads of the plant fiber bundles effectively isolates the plant fiber bundles from the outside, so that the plant fiber bundles are protected, the premature self-degradation of the plant fiber bundles serving as a bearing material is avoided, and the service life of the prepared environment-friendly antibacterial plastic bag is short.

As an embodiment of the present invention, wherein the plant fiber bundles in the raw material are hemp fibers, ramie fibers, sisal fibers, astragalus fibers and coconut fibers in a ratio of 1: 2: 1: 3: 3 in the ratio of the total amount of the fiber bundles; the hemp fiber, the ramie fiber, the sisal fiber, the astragalus fiber and the coconut shell fiber which are selected from the raw materials are plant fibers with good toughness, meanwhile, the sisal fiber has strong microbial degradation resistance, the hemp fiber and the ramie fiber are soft, the odor emitted by the astragalus fiber can also effectively inhibit the breeding of bacteria, and the plant fiber silk thread which is manufactured by mixing the hemp fiber and the ramie fiber is soft in texture and extremely strong in toughness, has the specific natural smell of plants, and can effectively generate the functions of expelling insects and inhibiting bacteria.

As an embodiment of the present invention, silver bromide nanoparticles are further added to the raw material;

the silver bromide granule of choosing in the raw materials is a material that effectively restraines bacterial growing harmless to the human body, add the performance that can effectual reinforcing environmental protection antibacterial plastic bag itself possesses of its suppression bacterial growing in the raw materials, silver bromide itself possesses better photocatalytic decomposition's nature simultaneously, add it to the raw materials, can carry out photocatalytic decomposition to the colloidal layer of vegetable fibre silk thread surface cladding effectively, thereby make the plastic bag after the abandonment degrade fast, and it is long to reduce illumination when not abandoning, alright in order to avoid the reduction of plastic bag life.

As an embodiment of the invention, the environment-friendly bacteriostatic plastic bag comprises a bag body 1, a handle 2 and a containing block 3; the bag body 1 is of a cuboid structure with a single-side opening; the number of the receiving blocks 3 is four; the accommodating blocks 3 are all designed in an L shape; the accommodating blocks 3 are fixedly connected with the bottom of the bag body 1; the accommodating blocks 3 are internally provided with first grooves 31; the first grooves 31 are in an L-shaped design, and the first grooves 31 formed in the two adjacent accommodating blocks 3 are symmetrically designed; the first grooves 31 are all rotatably connected with rotating rods 32; the number of the rotating rods 32 in the same first groove 31 is two, and the rotating rods are respectively positioned at two L-shaped ends of the first groove 31; an elastic band 33 is fixedly connected between every two adjacent rotating rods 32; the accommodating blocks 3 are internally provided with second grooves 34; a reinforcing belt 35 is fixedly connected in the second groove 34; the reinforcing strip 35 is of an X-shaped design; the opposite sides of two adjacent accommodating blocks 3 are provided with clamping grooves 36; the opposite sides of two adjacent accommodating blocks 3 are fixedly connected with clamping blocks 37; the clamping groove 36 is matched with the clamping block 37; the handles 2 are fixedly connected to two sides of the opening of the bag body 1; the outer surface of the handle 2 is sleeved with a cushion pad 4; the buffer pad 4 is made of cow leather material;

the degradation performance of the plastic bag is important along with the enhancement of consciousness of protecting the environment of people, most of the plastic bags in the prior art are modified to ensure that the plastic bag has stronger degradation performance, so that the pollution caused by the waste plastic bag is effectively reduced, but the degradation performance of the corresponding plastic bag is enhanced, so that the service life of the plastic bag is shortened, the toughness is poorer, and the plastic bag is extremely easy to damage, so that the waste rate of the plastic bag is higher, the use of a material bag cannot be effectively reduced, when the plastic bag is used in work, the plastic bag which is folded and stored in the storage blocks 3 is opened, the material is loaded into the plastic bag, the four storage blocks 3 are mutually separated under the action of gravity of the plastic bag, so that the elastic belt 33 wound on the rotating rod 32 is stretched and opened, the pressure on the bottom of the plastic bag is gradually increased along with the increase of the material, and the elastic, thereby playing a pressure buffering effect on the bottom of the plastic bag, effectively avoiding the bottom damage caused by the overlarge stress of the plastic bag, simultaneously folding the bag body 1 after the plastic bag is used, when the plastic bag is folded, because of the action of the elastic belt 33, the containing blocks 3 are mutually closed, inserting the fixture blocks 37 on the containing blocks 3 into the clamping grooves 36, combining the four containing blocks 3 into a whole, then evenly pressing the folded bag body 1 into the cavity formed by the containing blocks 3, thereby containing the plastic bag in a light-tight way, setting the fixed connection between the containing blocks 3 and the bag body 1, integrating the environment-friendly antibacterial plastic bag, avoiding the loss of the containing blocks 3 caused by the separate setting, simultaneously, the setting of the elastic belt 33 and the reinforcing belt 35 can effectively cooperate with the weaving structure of the bag body 1 to enhance the bearing capacity of the environment-friendly antibacterial plastic bag, reduce the damage probability, and effectively prolong the service life of the antibacterial plastic, meanwhile, the buffer layer sleeved outside the handle 2 can reduce the pressure of articles in the environment-friendly antibacterial plastic bag on hands, and the use body feeling of the environment-friendly antibacterial plastic bag is enhanced.

As an embodiment of the invention, the sides of the receiving blocks 3 away from the bag body 1 are fixedly connected with uniformly distributed reinforcing ribs 5; the reinforcing ribs 5 are made of soft thread rope materials; the reinforcing ribs 5 are fixedly connected to the outer surface of the bag body 1; the reinforcing ribs 5 extend into the cushion pad 4 and penetrate through the cushion pad 4; when the plastic bag is used in the prior art, pressure is mainly concentrated on the bottom and the handle 2, damage and deformation are very easy to occur to the handle 2, the plastic bag is discarded, the handle 2 and the containing block 3 are integrated through the reinforcing ribs 5 between the reinforcing belt 35 and the elastic belt 33, and the pressure concentrated on the handle 2 is dispersed, so that the resistance of the handle 2 to the pressure can be effectively enhanced, the damage probability of the handle 2 is effectively reduced, and the environment-friendly antibacterial plastic bag is more durable.

As an embodiment of the present invention, the two side walls of the bag body 1 are both provided with folding layers 6; the bag body 1 is fixedly connected with a fixing strip 61 positioned on the outer side of the folding layer 6; the fixing strip 61 is made of a magnetic material; a permanent magnet 62 is fixedly connected to the position of the accommodating block 3, which is opposite to the fixed strip 61; in the prior art, the internal volume of the opened plastic bag is constant, when articles are few, the plastic bag is too bloated and unattractive, when the articles are many, the packaging cannot be completed, the side face of the bottom of the environment-friendly antibacterial plastic bag is designed to be the folding layer 6, the folding part is compressed and fixed by utilizing the attraction between the fixing strip 61 and the permanent magnet 62, when the articles are few, the environment-friendly antibacterial plastic bag is regular and attractive, when the articles are many, the folding layer 6 is opened, the volume of the environment-friendly antibacterial plastic bag is effectively increased, and therefore the environment-friendly antibacterial plastic bag is more comfortable to use.

The specific working process is as follows:

when the folding plastic bag is used, the plastic bag which is folded and stored in the storage blocks 3 is opened, articles are loaded, the plastic bag separates the four storage blocks 3 from each other under the action of gravity, so that the elastic belt 33 wound on the rotating rod 32 is stretched and opened, the pressure on the bottom of the plastic bag is gradually increased along with the increase of the articles, the elastic belt 33 and the reinforcing belt 35 are tightly attached to the bottom of the plastic bag, the effect of pressure buffering is achieved on the bottom of the plastic bag, the bottom damage caused by overlarge stress on the plastic bag can be effectively avoided, meanwhile, after the plastic bag is used, the bag body 1 is folded, when the folding plastic bag is folded, the storage blocks 3 are mutually closed under the action of the elastic belt 33, the clamping blocks 37 on the storage blocks 3 are inserted into the clamping grooves 36, the four storage blocks 3 are combined into a whole, and then the folded bag body 1 is uniformly pressed into the cavities formed by the storage blocks 3, thereby the plastic bag is put away from light and is received.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.