| 摘要 |
<p>When placing block carton linings in freezing frames it is important that the existing corner flaps (20, 27) on the carton insertion are placed externally on the adjoining side panels (8), so that they cannot be frozen when sticking into the material filled into the lined freezing frame. During a fast mounting of the block carton it may be difficult to perceive whether these corner flaps are placed inwardly or outwardly of the adjoining carton sides, since they visibly will become indistinguishable in relation to the surroundings. By the invention this will be changed, so that the inwardly facing sides of the corner flaps (20, 27) are made with a surface characteristic, e.g. a distinct signal colour, which is deviating in such a way from the outlook of the rest of the inside of the carton, that a faulty placing of the corner flaps will be discovered instantly by sight.</p> |
