Can end for a can and such can

Abstract

The invention relates to a can end for a can, such as an easy opening can, comprising - a central panel, - a can end radius for connection to a body of the can; and - a countersink connected via a transition wall to the can end radius and via a panel wall to the panel, wherein - a panel wall angle (A 2 ,P 2 ) is 2 DEG - 45 DEG , - a panel radius (R 4 ) is larger than 0.5 mm - a panel depth (H 2 ) is 1 mm - 7 mm, and - a counter sink radius (R 3 ) is less than 5 mm, and to cans provided with at least one such a can end.

Description

technical field [0001] The present invention relates to a can end for such an easy open can, and to a can having at least one such can end. [0002] Such cans are intended to be used as beverage or food cans. Background technique [0003] Typically, beverage cans have relatively thin walls (0.04-0.15mm). Such beverage cans gain their strength (after filling and sealing) from the increased pressure inside them. To that extent, the tank is filled and loaded with gas generating material. After sealing, the gas buildup results in an increase in internal pressure. [0004] Usually, food jars that contain food are pasteurized or sterilized. Therefore, the increased pressure during the above process is temporary. However, due to undesired circumstances, after the food jar is filled and sealed, bacterial growth can lead to an increase in internal pressure. [0005] In the case of food and beverage cans, improper filling and handling of such cans can lead to temporary or sustai...

AI Technical Summary

Problems solved by technology

However, due to undesired circumstances, after the food jar is filled and sealed, bacterial growth can lead to an increase in internal pressure

[0005] In the case of food and beverage cans, improper filling and handling of such cans can lead to temporary or sustained pressure buildup which in turn can cause cans, especially those closed at their top and / or bottom Deformation of the tank

Thus, overfilling of cans with content material, excessively high process temperatures, unsatisfactory cooling operations, insufficient vacuum suction in cans, pretreatment of spoiled contents, undesired contact between can metal and contents Gas build-up such as hydrogen due to reactions, and shocks to tanks due to improper handling can result in sustained or temporary pressure build-up

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