CN215321151U

CN215321151U - Cup cover film for PS cup

Info

Publication number: CN215321151U
Application number: CN202120397950.8U
Authority: CN
Inventors: 鲜志德; 康秀华; 杨勇
Original assignee: Zhejiang Yongzheng Packaging Co ltd
Current assignee: Zhejiang Yongzheng Packaging Co ltd
Priority date: 2021-02-23
Filing date: 2021-02-23
Publication date: 2021-12-28
Anticipated expiration: 2031-02-23

Abstract

The utility model discloses a cup cover film for a PS (polystyrene) cup, which comprises a cup cover film body, wherein the cup cover film body sequentially comprises a waterproof layer, a printing layer, a first heat insulation layer, an aluminum foil layer, a raw paper pad thick layer, a middle layer, a second heat insulation layer and an easy-to-tear heat sealing layer from top to bottom, a plurality of through holes are formed in the raw paper pad thick layer, so that the raw paper pad thick layer is of a honeycomb structure, a protruding cover opening structure is arranged at the edge of one side of the cup cover film body, and a protruding sawtooth structure is arranged at the other side, away from the cover opening structure, of the cup cover film body. According to the utility model, the double-layer heat insulation layer is designed, so that the heat insulation performance of the cup cover film is effectively improved, the heat loss speed in the cup can be reduced, and the cup can be prevented from being scalded; the design of the base paper cushion thick layer has the function of heat insulation, the internal honeycomb-shaped through hole structure effectively enhances the mechanical property of the cup cover film, and the quality of the cup cover film can be reduced, so that the cup cover film is lighter.

Description

Cup cover film for PS cup

[ technical field ] A method for producing a semiconductor device

The utility model relates to the technical field of cup cover films, in particular to the technical field of cup cover films for PS cups.

[ background of the utility model ]

PS is a colorless and transparent thermoplastic plastic having a glass transition temperature higher than 100 ℃, and thus is often used to make various disposable containers, which need to withstand the temperature of boiling water, and disposable foam lunch boxes, etc. The disposable cup made of PS material is a PS cup, and when the disposable cup is used, the PP cup can be thermally sealed with a cup cover film to prevent the contained articles from flowing out. The existing cup cover film generally does not have high heat insulation performance, is easily scalded by the surface of the cup cover film, and can not be covered after the cup cover film is uncovered.

[ Utility model ] content

The utility model aims to solve the problems in the prior art, and provides a cup cover film for a PS cup, which has high heat insulation performance and can be covered again after the cup cover film is opened, so that the cup cover film is very convenient.

In order to achieve the purpose, the utility model provides a cup cover film for a PS cup, which comprises a cup cover film body, wherein the cup cover film body sequentially comprises a waterproof layer, a printing layer, a first heat insulation layer, an aluminum foil layer, a raw paper pad thick layer, a middle layer, a second heat insulation layer and an easy-to-tear heat sealing layer from top to bottom, a plurality of through holes are formed in the raw paper pad thick layer, so that the raw paper pad thick layer is of a honeycomb structure, a convex cover opening structure is arranged at the edge of one side of the cup cover film body, a convex sawtooth structure is arranged at the other side, away from the cover opening structure, of the cup cover film body, the cover opening structure comprises a pasting layer, the pasting layer is of a circular structure, the pasting layer is folded and pasted inwards, and convex strips convenient to tear are arranged at the outer edge of the pasting layer.

Preferably, the easy-to-tear heat-sealing layer is a film obtained by blending ethylene-vinyl acetate copolymer and ethylene-methyl methacrylate copolymer.

Preferably, the intermediate layer is a film obtained by blending LLDPE and LDPE.

Preferably, the first heat insulation layer is a mixed coating of a foam coating and resin, and the second heat insulation layer is a mixed coating of a foam coating and resin.

Preferably, the waterproof layer consists of a polyurethane film layer and a PTFE film layer.

The utility model has the beneficial effects that: according to the utility model, the double-layer heat insulation layer is designed, so that the heat insulation performance of the cup cover film is effectively improved, the heat loss speed in the cup can be reduced, and the cup can be prevented from being scalded; the design of the base paper cushion thick layer has a heat insulation effect, and the internal honeycomb-shaped through hole structure effectively enhances the mechanical property of the cup cover film, and can lighten the quality of the cup cover film, so that the cup cover film is lighter and more convenient; the design of the easy-to-open heat-sealing layer is convenient for opening the cup cover film, and plastic residues can not be left on the cup body, so that labor is saved and the cover is clean when being opened; the structural layer of pasting of uncapping conveniently opens and covers again behind the cup epiphragma, and the sawtooth structure of opposite side is lifted the back and can only pour out the hot water in the cup, conveniently carries out waste classification.

The features and advantages of the present invention will be described in detail by embodiments in conjunction with the accompanying drawings.

[ description of the drawings ]

FIG. 1 is a schematic structural view of a cup cover film for a PS cup according to the present invention;

FIG. 2 is a schematic view of a waterproof layer structure of a cover film for a PS cup according to the present invention;

FIG. 3 is a schematic structural diagram of a cup cover film body of the cup cover film for the PS cup according to the present invention;

FIG. 4 is a schematic view showing a structure of the PS cup cover film of the present invention after the adhesive layer is spread.

In the figure: the heat-insulation paper comprises, by weight, 1-a waterproof layer, 2-a printing layer, 3-a first heat-insulation layer, 4-a base paper padding thick layer, 5-a middle layer, 6-a second heat-insulation layer, 7-an easy-to-uncover heat-sealing layer, 8-an uncovering structure, 9-a sawtooth structure, 10-a cup cover film body, 11-a polyurethane film layer, 12-a PTFE film layer, 31-an aluminum foil layer, 81-an adhering layer and 82-convex strips.

[ detailed description ] embodiments

Referring to fig. 1, 2, 3 and 4, the cup cover film for the PS cup of the present invention comprises a cup cover film body 10, wherein the cup cover film body 10 sequentially comprises, from top to bottom, a waterproof layer 1, a printing layer 2, a first thermal insulation layer 3, an aluminum foil layer 31, a raw paper pad thick layer 4, an intermediate layer 5, a second thermal insulation layer 6 and an easy-to-tear heat-seal layer 7, the raw paper pad thick layer 4 is provided with a plurality of through holes, the raw paper pad thick layer 4 is in a honeycomb structure, a protruding cover-opening structure 8 is disposed at an edge of one side of the cup cover film body 10, the other side of the cup cover film body 10, which is far away from the cover-opening structure 8, the cover-opening structure 8 comprises a paste layer 81, the paste layer 81 is in a circular structure, the paste layer 81 is folded and pasted inwards, a protruding strip 82 which is convenient to tear is disposed at an outer edge of the paste layer 81, and the easy-to-tear heat-seal layer 7 is obtained by blending ethylene-vinyl acetate copolymer and ethylene-methyl methacrylate copolymer The middle layer 5 of the obtained film is a film obtained by blending LLDPE and LDPE, the first heat insulation layer 3 is a mixed coating of a foaming coating and resin, the second heat insulation layer 6 is a mixed coating of a foaming coating and resin, and the waterproof layer 1 is composed of a polyurethane film layer 11 and a PTFE film layer 12.

The working process of the utility model is as follows:

in the working process of the cup cover film for the PS cup, the cup cover film is firstly uncovered by the uncovering structure 8, the cup cover film is covered after hot water is injected into the cup body, the adhesive layer 81 is spread and then is adhered to the cup body, the cup cover film is fixed, the cup cover film is uncovered for eating after the soaked noodles are well-done, and the sawtooth structure 9 is uncovered after eating is finished to pour out the soup, so that garbage classification is facilitated. According to the utility model, the double-layer heat insulation layer is designed, so that the heat insulation performance of the cup cover film is effectively improved, the heat loss speed in the cup can be reduced, and the cup can be prevented from being scalded; the design of the raw paper cushion thick layer 4 has a heat insulation effect, and the internal honeycomb-shaped through hole structure can effectively enhance the mechanical property of the cup cover film, reduce the quality of the cup cover film and ensure that the cup cover film is lighter; the design of the easy-to-open heat-sealing layer 7 is convenient for opening the cup cover film, and plastic residues can not be left on the cup body, so that labor is saved and the cover is cleanly opened; the layer 81 of pasting on the structure 8 of uncapping conveniently opens the cup and covers back again behind the epiphragma, and the sawtooth structure 9 of opposite side is uncovered the back and can only pour out the hot water in the cup, conveniently carries out waste classification.

The above embodiments are illustrative of the present invention, and are not intended to limit the present invention, and any simple modifications of the present invention are within the scope of the present invention.

Claims

1. A cup cover film for a PS cup is characterized in that: comprises a cup cover film body (10), the cup cover film body (10) sequentially comprises a waterproof layer (1), a printing layer (2), a first heat-insulating layer (3), an aluminum foil layer (31), a base paper padding thick layer (4), a middle layer (5), a second heat-insulating layer (6) and an easy-to-tear heat-sealing layer (7) from top to bottom, the raw paper cushion thick layer (4) is provided with a plurality of through holes, so that the raw paper cushion thick layer (4) is of a honeycomb structure, a convex cover opening structure (8) is arranged at the edge of one side of the cup cover film body (10), the other side of the cup cover film body (10) far away from the cover opening structure (8) is provided with a convex sawtooth structure (9), the uncovering structure (8) comprises an adhesive layer (81), the adhesive layer (81) is of a circular structure, paste layer (81) and fold inside and paste the setting, the outward flange of pasting layer (81) is equipped with sand grip (82) that conveniently tear.

2. The cup cover film for a PS cup according to claim 1, wherein: the waterproof layer (1) is composed of a polyurethane film layer (11) and a PTFE film layer (12).