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Toothpaste Tube Valve

 prevent that last bit from being drawn back into the tube
  (+1, -4)
(+1, -4) 		  [vote for,
against]

They say what you can't put toothpaste back into the tube. I think we all know (or at least those of us who insist on using every possible drop) that when the tube is nearly empty, it reaches a point where you can force a dab out of the tube, but the majority of the dab gets drawn back into the tube as you attempt to place it onto the toothbrush. I propose the addition of a valve at the end of the nozzle, so that the final dab cannot be drawn back in.
—JakePatterson, Nov 06 2004
Toothpaste nozzle ~bz [bristolz, Nov 07 2004, last modified Jun 28 2005]

[link]






       So you won't be Crest fallin.
Sorry. <grabs thermos, heads to work>		   

       Sometimes, if you squeeze too-much toothpaste out of your tube, it pays to be able to suck just enough back in so as not to over-laden your toothbrush. Surely a valve of this description would invalidate that option? I'm not sure I'm ready to loose the flexibility of the traditional toothpaste tube, which, once mastered, can deliver exact-sized blobs of toothpase onto almost any bristly surface.
—zen_tom, Nov 06 2004
   

       [oniony] I didn't know you could get pressurised toothpaste tubes.
—prufrax, Nov 07 2004
   

       How about putting the toothpaste tube into a closed water filled container, and pressurise the water with a very small hand pump? Then measured dollops of paste could be dispensed. When the tube is nearly empty, the flexible part would be forced up into the shoulder area and held there by water pressure, ready for next time.
—Ling, Nov 07 2004
   

       It occurs to me [oniony] that your version is almost baked, in that you can buy pressurised toothpaste tubes with a valve at the top from which the paste emerges. Although this circumvents the fun (?) of installing a low pressure bathroom, it is still toothpaste under pressure moving into a lower pressure environment.
—wagster, Nov 07 2004
   
      
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