CN210162532U

CN210162532U - Biodegradable and recyclable express packaging bag

Info

Publication number: CN210162532U
Application number: CN201920486404.4U
Authority: CN
Inventors: 李成涛; 文静宜; 孔德懿; 张敏
Original assignee: Shaanxi University of Science and Technology
Current assignee: Shaanxi University of Science and Technology
Priority date: 2019-04-11
Filing date: 2019-04-11
Publication date: 2020-03-20
Anticipated expiration: 2029-04-11

Abstract

The utility model discloses a biodegradable and circulationThe express delivery wrapping bag of use belongs to packing articles for use technical field. Adopt degradable PBS base copolymer layer and kraft paper layer's bilayer structure as express delivery wrapping bag body, PBS base copolymer and kraft paper are environmental protection, pollution-free material. The PBS-based copolymer not only has good mechanical property, but also has excellent thermal stability, and can catalyze the hydrolysis of ester bonds under the action of microorganisms to finally degrade the ester bonds into CO₂And H₂O, has good biodegradability, and degradation products are nontoxic and harmless. The kraft layer can provide certain rigidity for the express delivery wrapping bag, and the inside article of packing of protection have certain waterproof performance. Meanwhile, a plurality of circles of tearing lines are arranged on the PBS-based copolymer layer, and after one circle of tearing lines is torn off during opening, the rest part can be packaged for use again. The express packaging bag has the advantages of effectively reducing cost, saving energy, reducing emission and realizing sustainable development.

Description

Biodegradable and recyclable express packaging bag

Technical Field

The utility model belongs to the technical field of packing articles for use, concretely relates to express delivery wrapping bag of biodegradable and recycling.

Background

The rapid development of the internet has enabled the generation and development of electronic commerce. The unprecedented prosperity of the online shopping market leads to the emergence of a large number of civil express enterprises like bamboo shoots in spring after rain, and also brings an opportunity for the rapid development of the whole express industry. Although the rapidly developed express delivery industry brings convenience to daily life of people, the express delivery garbage generated by the industry cannot be ignored. In recent years, the total number of express delivery in China is kept about 48 hundred million pieces per year, so that a large amount of garbage such as Polyethylene (PE) plastic bags, transparent adhesive tapes, foamed plastics and the like is generated, and the garbage can not be degraded in soil for 100 years. The pollution generated by packaging occupies the 4 th place of environmental pollution, and is next to water pollution, ocean and lake pollution and air pollution. The related data show that the total recovery rate of the current packaging materials in China is less than 20 percent, and most people throw the packaging materials of the express mail once after enjoying the furious idea of online shopping. The traditional biodegradable and recyclable express packaging bag seriously pollutes the environment and harms human health due to the fact that harmful substances are unreasonably recycled, so that the problem of packaging pollution is urgently solved, and the problems of environment-friendly design and recycling of express packaging are urgently solved.

Disclosure of Invention

In order to solve the problem, the utility model aims to provide a biodegradable and used repeatedly's express packaging bag improves biodegradable and used repeatedly's express packaging bag's environmental protection performance to but reuse has practiced thrift energy and manufacturing cost.

The utility model discloses a realize through following technical scheme:

the utility model discloses an express packaging bag which can be biodegraded and recycled, comprising an express packaging bag body, wherein the express packaging bag body consists of an outer PBS-based copolymer layer and an inner kraft layer; several circles of tear lines are provided on the PBS-based copolymer layer.

Preferably, a vibration-proof layer is further provided between the PBS-based copolymer layer and the kraft paper layer.

Further preferably, the shockproof layer is a sponge layer or an epe pearl cotton layer.

Preferably, a heat insulation layer is further arranged between the PBS-based copolymer layer and the kraft paper layer.

Further preferably, the heat insulation layer is an asbestos layer or a rock wool layer.

Preferably, the plurality of loops of tear line are arranged in parallel.

Preferably, the express packaging bag body is a flat bag, a square bottom bag, a portable bag, a letter seal type bag, a gusset bag, a hexagonal bottom bag or a special-shaped bag.

Compared with the prior art, the utility model discloses following profitable technological effect has:

the utility model discloses an express packaging bag that biodegradable and used cyclically adopts degradable PBS base copolymer layer and kraft paper layer's bilayer structure as express packaging bag body, and PBS base copolymer and kraft paper are environmental protection, pollution-free material, and wherein PBS base copolymer not only has good mechanical properties, and has excellent heat stability, can catalyze the hydrolysis of ester bond and finally degrade to CO under the microbial action₂And H₂O, has good biodegradability, and degradation products are nontoxic and harmless. The kraft layer can provide certain rigidity for the express delivery wrapping bag, and the inside article of packing of protection have certain waterproof performance. Meanwhile, a plurality of circles of tearing lines are arranged on the PBS-based copolymer layer, and after one circle of tearing lines is torn off during opening, the rest part can be packaged for use again, so that energy can be saved, and cost can be effectively reducedUse the utility model discloses an express packaging bag still has the following advantage that ① uses full biodegradable material to express packaging material field, fundamentally solves the use of a large amount of ordinary express packaging bags at present and the serious harm that causes the environment, the utility model discloses an amount of use of express packaging bag accounts for every 1 percentage point that improves, 4200 ton oil can be practiced thrift, ② provides "recycling" theory of express packaging bag, tear off the express packaging bag of tearing the line different times, remaining part can have different specification size, carry out reasonable selection according to the size of article of will packing, accomplish the rational utilization of resource, can not cause the extravagant condition of "big bagging-off thing", both saved the energy, reduced the emission, realized energy saving and emission reduction's environmental protection target, effectively reduce cost simultaneously, every recycle 1kg biodegradable plastics, reducible carbon dioxide emission 2.8kg, environmental protection, energy saving have great contribution, ③ base copolymer can adopt the hot melt to carry out, the traditional "seal" the sticky tape is upgraded to "to seal" the sealing bag "the environmental protection that the environmental protection is not realized, the environmental protection that can not be opened is opened, the environmental protection that can be opened is reduced emission reduction is opened, the environmental.

Furthermore, a shockproof layer is arranged between the PBS-based copolymer layer and the kraft paper layer, so that the contained articles can be protected from the shock of transportation, loading and unloading, and the damage in the process is avoided.

Furthermore, the shockproof layer is a sponge layer or an epe pearl cotton layer, which not only has good shockproof effect, but also is environment-friendly and nontoxic.

Furthermore, a heat insulation layer is arranged between the PBS-based copolymer layer and the kraft paper layer, so that the heat insulation layer can well insulate the contained articles, and is suitable for packaging the articles sensitive to temperature.

Furthermore, the heat insulation layer is an asbestos layer or a rock wool layer, so that a good heat insulation effect can be achieved, and the heat insulation layer is non-toxic and harmless in material and good in environmental protection performance.

Furthermore, a plurality of circles of tear lines are arranged in parallel, so that the express packaging bag is convenient to produce in batches and is convenient to use.

Furthermore, the express packaging bag body can adopt various forms and specifications according to actual needs.

Drawings

Fig. 1 is a schematic view of the overall structure of the biodegradable and recyclable express packaging bag of the present invention;

FIG. 2 is a schematic structural view of the biodegradable and recyclable express packaging bag of the present invention after being used once;

figure 3 is the utility model discloses a biodegradable and recycle's express packaging bag look sideways at the schematic diagram.

In the figure: 1 is an express packaging bag body; 1-1 is a PBS-based copolymer layer; 1-2 is a kraft layer; 1-3 is a shockproof layer; 1-4 is a heat insulation layer; and 2 is a tearing line.

Detailed Description

The utility model discloses a theoretical basis:

the PBS-based copolymers are more varied, such as: poly butylene succinate-co-butylene succinate (PBSH), poly butylene succinate-co-butylene succinate adipate (PBSA), poly butylene succinate-co-butylene succinate (PBS-co-DEGS), poly butylene succinate-co-butylene succinate (PBS-co-BDGA), poly butylene succinate-co-propylene glycol (PBS-co-PDO), poly butylene succinate-co-pentanediol (PBS-co-PeD), poly butylene succinate-co-hexanediol (PBS-co-HDO), poly butylene succinate-co-octanediol (PBS-co-ODO), poly butylene succinate-co-nonanediol (PBS-co-NDO), Poly (butylene succinate) -co-decanediol ester (PBS-co-DDO), poly (butylene succinate-co-GA), and poly (butylene succinate-co-adipate) (PBS-co-AA).

(1) Mechanical properties

Table 1 shows the tensile strength and elongation at break of PBS and copolymers.

TABLE 1 mechanical Properties of PBS and copolymers

The service performance report of the product shows that: 1, the whole production process is smooth, and the material performance is stable; 2, the material has good mechanical properties which are similar to those of low-density polyethylene (LDPE), high-density polyethylene (HDPE) and polypropylene (PP), and the tensile, bending and impact properties of the material can meet the agricultural production requirements; 3 the material has good processing formability, can be processed by using general polyester processing equipment, can be stably formed at 110-160 ℃, and has good thermal stability.

(2) Biodegradability

TABLE 2 carbon dioxide Release amount and percentage of biodegradation

The present invention will be described in further detail with reference to the accompanying drawings:

fig. 1 is a schematic view of the overall structure of the biodegradable and recyclable express packaging bag of the present invention, which includes an express packaging bag body 1, wherein the express packaging bag body 1 is composed of an outer PBS-based copolymer layer 1-1 and an inner kraft paper layer 1-2; several circles of tear lines 2 are provided on the PBS-based copolymer layer 1-1. A vibration-proof layer 1-3 may be provided between the PBS-based copolymer layer 1-1 and the kraft paper layer 1-2. The shockproof layer 1-3 can be made of sponge or epe pearl cotton. And a heat insulation layer 1-4 can be arranged between the PBS-based copolymer layer 1-1 and the kraft paper layer 1-2. The heat insulation layers 1-4 can be made of asbestos or rock wool. The plurality of circles of tearing lines 2 are arranged in parallel and can also be arranged at equal intervals. The express packaging bag body 1 is a flat bag, a square bottom bag, a portable bag, a letter seal type bag, a corner support bag, a hexagonal bottom bag or a special-shaped bag.

The utility model discloses a biodegradable and the application method who recycles express packaging bag:

like figure 2, during the primary use, can paste label or bar code on tearing the first section that line 2 cut apart, wait to receive a person and receive the back, tear off first section along tearing line 2, take out behind the contained object, retrieve remaining express packaging bag body 1. When using for the second time, adopt hot melt or gluing to seal the opening part, paste label or bar code on tearing the second section that line 2 was cut apart, wait to receive a people and receive the back, tear off first section along tearing line 2, take out after the dress article, retrieve remaining express packaging bag body 1. Analogize with this, until tearing 2 all being used up of line, retrieve remaining express delivery wrapping bag body 1, retrieve and degradation processing after tearing the structure partition.

It should be noted that the above description is only one of the embodiments of the present invention, and all equivalent changes made by the device described in the present invention are included in the protection scope of the present invention. The technical field of the present invention can be replaced by other embodiments described in a similar manner, without departing from the structure of the present invention or exceeding the scope defined by the claims, which belong to the protection scope of the present invention.

Claims

1. An express packaging bag capable of being biodegraded and recycled is characterized by comprising an express packaging bag body (1), wherein the express packaging bag body (1) is composed of an outer PBS (phosphate buffer solution) based copolymer layer (1-1) and an inner kraft layer (1-2); a plurality of circles of tearing lines (2) are arranged on the PBS-based copolymer layer; a shockproof layer (1-3) and a heat insulating layer (1-4) are also arranged between the PBS-based copolymer layer (1-1) and the kraft paper layer (1-2).

2. The biodegradable and recyclable express delivery package of claim 1, wherein the shock resistant layers (1-3) are sponge layers or epe pearl wool layers.

3. The biodegradable and recyclable express delivery package of claim 1, wherein the insulation layer (1-4) is a rock wool layer or a rock wool layer.

4. Biodegradable and recyclable express packaging bag according to claim 1, characterized in that several loops of tear lines (2) are arranged in parallel.

5. The biodegradable and recyclable express delivery package of claim 1, wherein the express delivery package body (1) is a flat bag, a square bottom bag, a portable bag, a envelope bag, a gusset bag, a hexagonal bottom bag, or a special-shaped bag.