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General Science / How they get the stripes into toothpaste?
« on: 07/04/2010 19:59:31 »
Although in the 1960s the stripes were mixed in using a gadget at the top of the tube this is no longer the case.
We theorised and then decided to find out for sure. The stripes are extruded into the tube, in a sort of maltese cross formation.
http://www.youtube.com/watch?v=GPBxSWAXoJo
We theorised and then decided to find out for sure. The stripes are extruded into the tube, in a sort of maltese cross formation.
http://www.youtube.com/watch?v=GPBxSWAXoJo