摘要:
The present invention relates to a ventilation board, an insulating board, a ventilation system, and articles and architectural applications comprising said ventilation board and a method of manufacturing the ventilation board. The said ventilation board comprises a layer (11) provided with a first aperture (5); an adjacent layer provided (13) with a second aperture (7), the first and second apertures being located relative to each other such that they are non-aligned and are substantially without overlap; and a passageway (9) interconnecting the first and second apertures thereby permitting the passage of fluid therebetween. Therefore, the carton comprising said ventilation board when used for fast food packaging provides sufficient ventilation of the carton so that water condensed from food vapours does not run on to the food in the carton, and sufficient insulation so that the food in the carton is kept warm.
摘要:
A ventilation board of the present invention is manufactured from a corrugated board comprising at least one depressed portion on both side of the board in such a way that flutes of the corrugated layer between said depressed portions are exposed to form a plurality of passageways for passage of fluid across the board, in other word, from one side to other side of the board. According to a method of the present invention, the depressed portion is formed by forming a cut on the surface of each side of the board in such a way that the cut penetrating from one side of the board passes through the corrugated layer of the corrugated board but does not pass through the other side of the corrugated board and depressing the cuts in such a way that the flutes between the depressed portion get exposed in order to provide passageways for passage of the fluid across the board.
摘要:
The present invention relates to a ventilation board, an insulating board, a ventilation system, and articles and architectural applications comprising said ventilation board and a method of manufacturing the ventilation board. The said ventilation board comprises a layer (11) provided with a first aperture (5); an adjacent layer provided (13) with a second aperture (7), the first and second apertures being located relative to each other such that they are non-aligned and are substantially without overlap; and a passageway (9) interconnecting the first and second apertures thereby permitting the passage of fluid therebetween. Therefore, the carton comprising said ventilation board when used for fast food packaging provides sufficient ventilation of the carton so that water condensed from food vapours does not run on to the food in the carton, and sufficient insulation so that the food in the carton is kept warm.
摘要:
The present invention provides a luggage, which is mainly foldable and/or disposable. In preferable terms, the present invention provides said foldable and/or disposable luggage made of corrugated board having wheels adapted detachably to the luggage, which makes the luggage easy to handle, store and stackable. Said foldable and/or disposable luggage comprises two main panels, namely top main panel and a bottom main panel, and a plurality of side panels of the luggage formed by folding at least one scored die-cut flat blank, an extended panel, and a ply having wheels aligning with the holes of the said panel.