Pressure-resistant container

A tank shell and internal pressure technology, applied in the field of pressure-resistant tanks, can solve problems such as damage, tank shell tearing, bursting, etc., and achieve the effect of firm and good restraint

Active Publication Date: 2020-01-31
ENVICA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0016] It has proven to be disadvantageous that, in the case of paper or cardboard composite cans made of wound individual plies, there is a gap between the barrier laminate structure of plastic film and optionally aluminum foil and the subsequent layer of paper or cardboard material. The maintenance effect between them is not enough for packaging used as a pressurized medium, especially carbonated beverages, which may lead to damage causing leakage, especially in the area of ​​the folded seam, which in turn leads to Tearing or bursting due to moisture in paper or cardboard material

Method used

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Examples

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example 1

[0219] use Figure 27 A particularly preferred layer structure for a beverage can with a height of 134 mm and an outer diameter of 52.4 mm and a filling volume of 250 ml of carbonated beverages was produced. As paper or kraft layer 105, use a less tear-resistant, wood-free paper, especially Lumiflex TM 110 gsm Stora Enso AG provided with a PE coating on the outside of the rear of the tank. The top and bottom of beverage cans are sealed with standard bottoms, and the lids of aluminum cans are sealed with standard closures.

[0220] The layers used and the resulting layer structure are specified in the table below.

[0221]

[0222]

[0223] Tensile strength MD (machine direction) indicates the tensile strength of kraft paper in the longitudinal direction of the tank body 101 , and tensile strength CD (cross direction) indicates the tensile strength of kraft paper in the circumferential direction of the tank body 101 . It can be seen that the conventional paper used for...

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Abstract

The invention relates to a container containing a liquid and / or gaseous medium which has a negative pressure or develops a negative pressure during transportation or storage. The cylindrical containercover (101) is made primarily from a paper or cardboard-based material and is closed at the bottom by a base element and on the top by a cover. The container can withstand an internal pressure of atleast 5 bar. The inner-most layer of the container cover (101) comprises a straight, wound barrier layer (102) which has a fold which folds with itself and which extends in the longitudinal directionof the container. The barrier layer (102) is a prefabricated laminate made from an inner diffusion-tight barrier film or from an inner diffusion-tight barrier laminate (108) and an outer kraft paper layer (107).

Description

technical field [0001] The invention relates to a pressure tank with a tank shell of composite material. Background technique [0002] A pressure tank is a tank used to pack a medium with positive pressure, or a medium that may generate positive pressure during storage, transportation or use. [0003] The present invention therefore relates to a fluid container, in particular a beverage container, which can also be used to discharge canned beverages, such as carbonated mineral water, sweetened drinks, energy drinks or beer, since as a special feature it is These objects are sufficiently pressure-resistant. By design, it is suitable for all kinds of aerosol cans with even higher internal pressure. Furthermore, the present invention relates to an industrial manufacturing and logistics method with which beverage cans facilitate the filling of beverages, in particular containers on-site and can be produced on demand, preferably synchronously with existing filling facilities. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B65D3/04B32B27/10B65D3/14B65D3/22B32B7/12B29C53/48B31C3/00B31C1/06
CPCB29C53/50B29C53/8091B29C57/04B29C57/12B29C2793/0027B31B2105/00B31B2120/408B31C3/02B31C3/04B31C11/02B32B7/12B32B27/10B65D3/04B65D3/14B65D3/22B32B27/32B32B29/005B32B27/306B32B2255/26B32B29/08B32B2307/54B32B2307/732B32B2307/5825B32B2260/046B32B2255/06B32B2307/7163B32B2307/7244B32B2307/7242B32B2439/66B32B2307/7246B32B1/08B32B2307/7248B32B2439/70B32B15/08B32B15/12B32B15/20B32B2307/718B32B27/08B32B15/085B32B2255/12B29C53/566B29D22/003B29K2711/123B29L2031/717B32B1/02B65D15/06B65D65/40B67B1/10B67C3/225
Inventor 托马斯·德雷格尔克里斯托福·施厄尼格
Owner ENVICA
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