Metal foils have non-contact inner space which keep cups and lid to cold/warm

Abstract

In 2021, major industrial countries announced a 50% carbon reduction in 2030. Disposable paper cups with plastic inner membranes and disposable plastic cups are banned globally are required for recycling and reuse. Double-layer near-vacuum metal foil cups with cold and warm preservation functions, also for keeping cold and warm preservation are Low-carbon market needs.

Claims

1. A process for manufacturing a metal foils have non-contact inner space which keep cups and lid to cold/warm as shown in FIG. 1, Its characteristics include: A recycled pulp with multi-hole wave-shaped low-conductivity round cup support liner (211) is placed between metal foil made inner cup (301) and outer cup (101); Heat sealed a vacuum valve (13) at the bottom of (101) the metal foil cup and heat-press the top (23) of the cup and vacuum through (13) to complete the construction; The outer film metal foil cup (101) and the inner film metal foil cup (301), with all holes (221) in the support frame (211), would be of non-contact with each other with near-vacuum space; The lid must also be inserted with the lining bracket (211) using the same process as previously described; Heat sealed vacuum valve (13) in the lid rim (23) to heat seal the beverage in the (301) metal foil cup; Its including the exemption of the (211) support frame; The use of thicker and stronger materials for the production of the outer cup (101), ensuring that after completion of vacuuming through the (101) outer cup bottom vacuum pumping valve (13) so that there is a non-contact vacuum space (20) between the inner metal foil cup (301) and the outer cup (101), and a inner space with no supporting bracket used in the beverage cup is completed; A metal foils have non-contact inner space to keep cold/warm used in the food and cold/warm beverage cups and lid assembly is completed.

Description

A SIMPLE DESCRIPTION OF THE SCHEMA

[0004] FIG. 1 is a schematic drawing of this creative application applied to a metal foil food and cold/warm beverage cups and lid.

APPLICATION METHOD

[0005] The present invention utilizes a plan perspective view FIG. 1 to a near-vacuum and cold/warm insulating composite material is further described in detail in FIG. 1 by using an iced beverage container and a lid. A metal foil cup made of a cup inner film (301) is used to sheath a cup outer film (101). To make large-size metal foil cups, use a recycled pulp between the inner metal foil cup (301) and the outer metal foil cup (101). Insert a circular wave-shaped multi-hole low-conductivity lining bracket (211) between the inner metal foil cup (301) and the outer foil cup (101). The cup top edge (23) is sealed. A suction valve (13) is heat-sealed at the bottom of the cup (101) to ensure that there is no contact between the inner mezzanine and outer cups after vacuuming. At (221) there is a near-vacuum space. The lids bottom inner film (24) and the top cover outer film (25) shall be placed in the same support frame (211) closed at the cover edge (23). A suction valve (13) is heat-sealed at the bottom of the lid (24). A metal foil cups with lid for food and cold/warm beverage is completed.

[0006] The function of the composite metal foil in cold/warm beverage cup application must have a low conductive lining bracket (211), because the inner cup (301) and outer cup (101) foil are too thin to support the near-vacuum space (221) to make the inner cup (301) and the outer cup (101) not contacting each other at the (20) position to achieve the purpose of keeping cold or keeping warm. For a cup-shaped beverage container, when the atmospheric pressure is applied to the outside of the inner cup (301), the outer dimensions of the inner cup (301) will not be changed due to the surface tension of the columnar metal foil. When people choose thicker or higher strength foil for the outer cup (101), the outer cup (101) shape does not change after vacuum, the inner metal foil cup (301) would not make contact with outer foil cup (101), ensure that (20) position would have near vacuum space, then there is no need to have support frame (211) and still achieve the purpose of insulation of keeping cold/warm.

SYMBOL DESCRIPTION

[0007] 13 Suction valve. [0008] 20 Near-vacuum chamber. [0009] 23 Hot-pressing and welding position. [0010] 24 Cover bottom. [0011] 25 Cover upper. [0012] 101 Outer foil cup [0013] 211 Round wave with multi-hole low conduction lining bracket. [0014] 221 Non-contacting near-vacuum inner space. [0015] 301 Metal foil cups.