B - Operations – Transporting – 05 – B
Patent
B - Operations, Transporting
05
B
299/23, 61/34, 1
B05B 1/20 (2006.01) A01G 25/02 (2006.01) B23K 26/40 (2006.01) B29C 47/04 (2006.01)
Patent
CA 2007139
A tube having holes formed at precise positions is obtained by preparing a tube in which a substantially black synthetic resin film portion and a synthetic resin film portion substantially having a color other than black are formed alternately in its circumferential direction and then by drilling the black synthetic resin film portion by a laser beam.
On obtient un tube ayant des trous en des endroits précis en préparant un tube dans lequel on forme alternativement, dans le sens de sa circonférence, une partie en pellicule de résine synthétique substantiellement noire et une partie en pellicule de résine synthétique ayant substantiellement une couleur autre que noire, puis en perçant les trous au rayon laser dans la partie en pellicule de résine synthétique noire.
Kirby Eades Gale Baker
Mitsui Chemicals Inc.
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