A - Human Necessities – 23 – P
Patent
A - Human Necessities
23
P
A23P 1/10 (2006.01) A23L 1/00 (2006.01) A23P 1/08 (2006.01) A47G 21/18 (2006.01)
Patent
CA 2301504
A method for manufacturing a tube, such as a straw, which is defined with a through hole therein, using starch, thereby preventing the tube from being hazardous to the human body and from generating environmental pollution. The tube is manufactured using an extruding process. In accordance with the present invention, air is blown into a through hole defined in a tube, being extruded, in order to prevent facing portions of the inner surface of the tube from coming into contact with each other, thereby preventing the through hole from being clogged.
La présente invention concerne un procédé de fabrication d'un tube, tel qu'une paille, traversé par un trou de passage à base d'amidon, procédé qui rend le tube inoffensif pour le corps humain et non nuisible pour l'environnement. Le tube est fabriqué par extrusion. Selon la présente invention, on introduit à l'intérieur d'un trou de passage défini dans le tube qui est extrudé un courant d'air qui empêche les faces opposées de la surface interne du tube d'entrer en contact les unes avec les autres et d'obstruer le trou de passage en s'affaissant.
Kim Youn Young
Smart & Biggar
LandOfFree
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