Search

CN-121974025-A - Paper cup and bottom thereof

CN121974025ACN 121974025 ACN121974025 ACN 121974025ACN-121974025-A

Abstract

The invention provides a paper cup and a cup bottom thereof, and belongs to the technical field of paper containers. It has solved how to avoid the problem that liquid leaked by the clearance department of high-bottom paper cup bottom. The utility model provides a bottom of cup of paper cup, includes the backing paper, the backing paper edge turns over downwards and forms the turn-ups, turn-ups bottom is supporting part, the supporting part top is equipped with a plurality of fold, the fold evenly sets up around the central axis circumference of backing paper to inwards the protruding range upon range of setting of turn-ups, a plurality of groove has been seted up on the supporting part, the groove is located the fold below for make the turn-ups thickness after turning over downwards unanimous. Through set up a plurality of dent and groove on the turn-ups at base paper edge, make the thickness of turn-ups unanimous, avoid the turn-ups to lead to water to leak by this clearance with the too big local distance of cup body inboard.

Inventors

  • DING JIAOPING
  • DING YUFAN

Assignees

  • 湖北克拉弗特实业有限公司

Dates

Publication Date
20260505
Application Date
20260212

Claims (9)

  1. 1. The utility model provides a cup bottom of paper cup, includes base stock (2), turn over downwards at base stock (2) edge forms turn-ups (2 a), the bottom of turn-ups (2 a) is equipped with supporting part (2 a 1), a serial communication port, supporting part (2 a 1) top is equipped with a plurality of fold 2a2b, fold 2a2b evenly sets up around the central axis circumference of base stock (2) to inwards protruding range upon range of setting of turn-ups (2 a), a plurality of groove (2 a1 a) have been seted up on supporting part (2 a 1), groove (2 a1 a) are located fold 2a2b below for make turn-ups (2 a) thickness after turning over downwards unanimous.
  2. 2. The bottom of the paper cup according to claim 1, wherein the middle part of the bottom paper (2) is a bottom surface part (2 b), the flange (2 a) further comprises an adhesive part (2 a 2), the adhesive part (2 a 2) is located between the bottom surface part (2 b) and the supporting part (2 a 1), and the folds (2 a2 b) are uniformly arranged on the adhesive part (2 a 2).
  3. 3. The bottom of the paper cup according to claim 2, wherein a plurality of concave downward dents (2 a2 a) are circumferentially arranged on the circumference of the bottom surface part (2 b), and when the edge of the bottom paper (2) is turned downward to form a flanging (2 a), the lamination of the bottom of the groove (2 a1 a) of the dent (2 a2 a) and the flanging (2 a) forms a fold (2 a2 b).
  4. 4. A bottom of a paper cup according to any one of claims 1 to 3, characterized in that a number of said folds 2a2b divide the adhesive portion (2 a 2) evenly into a number of adhesive segments (2 a2 c).
  5. 5. The bottom of the paper cup according to claim 4, characterized in that each of the adhesive segments (2 a2 c) and the bottom surface (2 b) is coated with a water-proof coating (3).
  6. 6. The cup bottom of the paper cup according to claim 5, wherein the groove (2 a1 a) is located at an end of the supporting portion (2 a 1), and an opening of the groove (2 a1 a) is provided downward.
  7. 7. The bottom of the paper cup according to claim 5, wherein the folds 2a2b are curved inwards after the edge of the base paper (2) is folded down to form the bottom.
  8. 8. The bottom of the paper cup according to claim 7, wherein the folds 2a2b are arranged vertically or obliquely with respect to the upper surface of the bottom when the edge of the base paper (2) is turned down to form the bottom.
  9. 9. A paper cup, which is characterized by comprising a cup body (1) and a cup bottom of the paper cup in claim 1, wherein the cup bottom is positioned at the bottom of the cup body (1) and is connected with the cup body (1) in an adhesive manner.

Description

Paper cup and bottom thereof Technical Field The invention belongs to the field of paper containers, and particularly relates to a paper cup and a cup bottom thereof. Background Paper cups are widely used in catering, offices and various occasions because of the advantages of low manufacturing cost and easy degradation, and generally comprise a cup body and a cup bottom connected with the bottom of the cup body. Wherein, a common paper cup structure is including the turn-up portion that is located the cup body bottom and be located the turn-ups of cup bottom week side, through the cooperation and the bonding connection of turn-up portion and turn-ups, and then obtain bottom confined paper container, however, for reducing the area occupied of paper cup when depositing, the mode that a plurality of paper cup can be piled up from top to bottom is deposited to the ordinary person of skill in the art, but after piling up the paper cup, can be because the inner wall contact of last cup and lower cup, frictional force increases and leads to last cup to be difficult to take out. In order to solve the above problems, the paper cup in the prior art is provided with a lining above the cup bottom or a mode of increasing the height of the cup bottom, the distance between the cup bottom and the upper cup bottom is raised through the lining positioned at the cup bottom, the contact area between the upper cup and the lower cup is reduced, the taking of the upper cup is facilitated, but the lining is placed inside the paper cup, the production cost is increased, the lining can fall down in the use process, and when the height of the cup bottom is increased, folds are generated on the flanging due to the fact that the edge of the base paper is bent by stamping, and the folds are unevenly distributed, so that the size of a gap between the flanging and the cup body is different, and leakage is easy to occur. Disclosure of Invention The invention aims to solve the problems in the prior art, and provides a paper cup and a cup bottom thereof, wherein the technical problems to be solved by the invention are as follows: how to avoid the leakage of liquid from the gap at the bottom of the high-bottom paper cup. The aim of the invention can be achieved by the following technical scheme: the utility model provides a cup bottom of paper cup, includes the backing paper, the backing paper edge turns over downwards and forms the turn-ups, turn-ups bottom is supporting part, its characterized in that, the supporting part top is equipped with a plurality of fold, the fold evenly sets up around the central axis circumference of backing paper to inwards the protruding range upon range of setting of turn-ups, a plurality of groove has been seted up on the supporting part, the groove is located the fold below for make turn-ups thickness after turning over downwards even. According to the application, on the basis of the existing high-bottom paper cup, the folded edges of the cup bottom are circumferentially provided with the inwards protruding stacked folds, the supporting part is provided with the plurality of grooves, the plurality of folds are used as the guiding area and the containing area for materials in the folding process, the problem that the gap between the cup bottom and the cup body is larger than the coverage range of the waterproof coating due to the fact that the local thickness is increased due to unordered arrangement of redundant materials after folding is avoided, the sealing performance of the bottom of the high-bottom paper cup is improved, leakage is avoided, and the inner side structural strength of the cup bottom is improved in a mode that the folds are inwards protruding. In the bottom of the paper cup, the middle part of the bottom paper is the bottom part, the flanging further comprises a bonding part, the bonding part is positioned between the bottom part and the supporting part, and the folds are uniformly arranged on the bonding part. Through setting up the fold protrusion in the inboard of bonding portion, avoid the bottom of cup and the bonding of cup back, bonding portion and the too big and leakage that leads to of cup body inner wall distance, and increase bonding portion's structural strength. In the bottom of the paper cup, a plurality of concave dents are circumferentially arranged on the periphery of the bottom surface part, and after the edge of the bottom paper is turned down to form a flanging, the bottoms of the dents and the flanging are laminated to form wrinkles. By means of presetting the dents, the direction of extra arrangement of the wrinkles in the folding process is avoided, and the difficulty of production and processing is reduced. In the bottom of the paper cup, the plurality of folds uniformly divide the bonding part into a plurality of bonding sections. In the bottom of the paper cup, each of the bonding sections and the bottom surface portion is coated with a waterproof coating. Through