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CN-224198290-U - High-strength environment-friendly plastic bag

CN224198290UCN 224198290 UCN224198290 UCN 224198290UCN-224198290-U

Abstract

The utility model relates to the technical field of packaging materials and discloses a high-strength environment-friendly plastic bag which comprises a bag body, wherein a degradable coating is fixedly connected to the outer wall of the bag body, a reinforcing rib is fixedly connected to the inner wall of the bag body, a thickened curled edge is fixedly connected to the top of the outer wall of the bag body, an inner groove is formed in the inner wall of the thickened curled edge, an inner ring is fixedly connected to the inner wall of the inner groove, an elastic rib is fixedly connected to the inner wall of the inner ring, and a draining mechanism is arranged at the bottom of the bag body. According to the utility model, through the reinforcing ribs made of PLA-based composite materials attached to the inner wall of the bag body in a grid shape, the tensile force can be uniformly dispersed when the plastic bag bears a heavy object, so that the stress concentration is prevented, the defect of insufficient strength of the traditional plastic bag is effectively overcome, the integral strength is enhanced, meanwhile, the bag body is made of polylactic acid and polyhydroxyalkanoate in a mixed mode, and the degradable coating of the waterborne polyurethane material is adopted, so that the plastic bag has the degradable characteristic.

Inventors

  • CAO YADI
  • DU JUAN

Assignees

  • 上海迅能塑胶制品有限公司

Dates

Publication Date
20260505
Application Date
20250618

Claims (8)

  1. 1. The high-strength environment-friendly plastic bag comprises a bag body (1) and is characterized in that a degradable coating (3) is fixedly connected to the outer wall of the bag body (1), a reinforcing rib (4) is fixedly connected to the inner wall of the bag body (1), a thickened curled edge (5) is fixedly connected to the top of the outer wall of the bag body (1), an inner groove (6) is formed in the inner wall of the thickened curled edge (5), an inner ring (7) is fixedly connected to the inner wall of the inner groove (6), an elastic rib (8) is fixedly connected to the inner wall of the inner ring (7), and a draining mechanism (2) is arranged at the bottom of the bag body (1).
  2. 2. The high-strength environment-friendly plastic bag as claimed in claim 1, wherein the draining mechanism (2) comprises an inner bag bottom (201), the outer wall of the inner bag bottom (201) is fixedly connected to the bottom of the inner wall of the bag body (1), a plurality of water outlet holes (202) are formed in the top of the inner bag bottom (201), outer bag bottoms (203) are fixedly connected to the front side and the rear side of the bottom of the inner bag bottom (201), tear strips (204) are fixedly connected to adjacent sides of the outer walls of the two outer bag bottoms (203), tear lines (205) are arranged on the outer walls of the two outer bag bottoms (203), and lifting pieces (206) are fixedly connected to the left side of the outer walls of the tear strips (204).
  3. 3. The high-strength environment-friendly plastic bag as claimed in claim 1, wherein rope grooves (9) are formed in the middle parts of the left side and the right side of the top of the thickened curled edge (5), and reinforcing and edge sealing (10) are fixedly connected to the inner walls of the two rope grooves (9).
  4. 4. The high-strength environment-friendly plastic bag according to claim 3, wherein the inner walls of the two elastic ribs (8) are both connected with tightening pull ropes (11) in a sliding manner, and the two rope grooves (9) are symmetrically designed.
  5. 5. The high-strength environment-friendly plastic bag as claimed in claim 1, wherein the thickness of the degradable coating (3) is set to be 0.05-0.1mm, and the thickness of the reinforcing ribs (4) is set to be 0.1-0.2mm.
  6. 6. The high-strength environment-friendly plastic bag as claimed in claim 1, wherein the grid spacing of the reinforcing ribs (4) is set to be 5-10mm, and handles (12) are fixedly connected to the middle parts of the front side and the rear side of the top of the thickened curled edge (5).
  7. 7. The high-strength environment-friendly plastic bag as claimed in claim 6, wherein the outer walls of the two handles (12) are provided with hand grooves (13), and the outer walls of the two handles (12) are rounded.
  8. 8. The high-strength environment-friendly plastic bag as claimed in claim 2, wherein the waterproof layer (14) is fixedly connected to the middle part of the top of the tear tape (204), the water outlet holes (202) are formed in the top of the bag inner bottom (201) at equal intervals, and the water outlet holes (202) are formed in the bottom of the bag.

Description

High-strength environment-friendly plastic bag Technical Field The utility model relates to the technical field of packaging materials, in particular to a high-strength environment-friendly plastic bag. Background The plastic bag is the most common plastic product in daily life, is made of polyethylene or polyvinyl chloride, is light and thin in texture, good in flexibility, transparent in appearance or provided with color and luster, has excellent waterproof and dampproof performances, is convenient for contain various commodities in shopping scenes, can effectively prolong the quality guarantee period of foods in the field of food packaging, ensures the freshness of the foods, however, has stable chemical structure, takes hundreds of years for natural degradation, and a large number of waste plastic bags are piled up, so that soil and water sources are polluted, wild animal survival is threatened, and nowadays, along with the improvement of environmental awareness, the degradable plastic bags are generated, and the innovation is hopeful to release the environmental pressure brought by the plastic bags and promote sustainable development while meeting the use requirement. The patent bulletin number is CN206599090U, which discloses a plastic bag and a using method thereof, wherein the plastic bag comprises a bag body, an opening is arranged on the bag body, a strip-shaped handle and a containing cavity for containing the handle are arranged on the edge of the opening of the bag body, both ends of the handle are fixedly connected to the bag body, an opening for the handle to be pulled out is arranged on the outer wall of the containing cavity, when the opening is opened to the maximum state, the handle is straightened and completely enters the containing cavity, and because both ends of the handle are fixed on the bag body, people can open the opening to the maximum state in the process, the handle is straightened and also can be contained in the containing cavity, if the plastic bag is needed to be carried by people, the handle can be directly pulled out from the opening, the handle and the release can be mutually switched, but the mechanical strength of the plastic bag is lower, and the high-strength use requirement is difficult to be met. Disclosure of utility model In order to make up for the defects, the utility model provides a high-strength environment-friendly plastic bag, and aims to solve the problems that the mechanical strength is low and the high-strength use requirement is difficult to meet in the prior art. In order to achieve the purpose, the high-strength environment-friendly plastic bag comprises a bag body, wherein a degradable coating is fixedly connected to the outer wall of the bag body, a reinforcing rib is fixedly connected to the inner wall of the bag body, a thickening curled edge is fixedly connected to the top of the outer wall of the bag body, an inner groove is formed in the inner wall of the thickening curled edge, an inner ring is fixedly connected to the inner wall of the inner groove, an elastic rib is fixedly connected to the inner wall of the inner ring, and a draining mechanism is arranged at the bottom of the bag body. According to the technical scheme, the degradable coating has the environment-friendly characteristic of the plastic bag, the harm to the environment is reduced, the reinforcing ribs strengthen the integral strength of the plastic bag, the plastic bag is prevented from being damaged due to overlarge stress, the strength of the bag opening is improved by the thickened curled edges, the tearing of the bag opening when a weight is lifted is avoided, the inner groove, the inner ring and the elastic ribs are mutually matched, and the plastic bag is conveniently fixed on a container. As a further description of the above technical solution: The draining mechanism comprises a bag inner bottom, the outer wall of the bag inner bottom is fixedly connected to the bottom of the inner wall of the bag body, a plurality of water outlets are formed in the top of the bag inner bottom, bag outsoles are fixedly connected to the front side and the rear side of the bottom of the bag inner bottom, tear strips are fixedly connected to adjacent sides of the outer wall of the bag outsoles, tear lines are arranged on the outer wall of the bag outsoles, and lifting sheets are fixedly connected to the left side of the outer wall of the tear strips. Through the technical scheme, the inner bottom of the bag receives accumulated water in the bag, the accumulated water flows into the outer bottom of the bag through the water outlet, the tearing strip, the tearing line and the lifting piece are matched with each other, a drainage channel is conveniently opened by a user, and convenient draining is realized. As a further description of the above technical solution: Rope grooves are formed in the middle of the left side and the right side of the top of the thickened curled edge, and reinfor