Are you one of those people that squeezes out toothpaste onto your toothbrush, brushes your teeth, and gets on with your day? Yeah? Ok, you're done, read no further.
Are you one of those people that squeezes out toothpaste onto your toothbrush, starts brushing your teeth, and two minutes in you say "Wait a second...." Yeah? Cool, this one's for you.
Toothpaste tubes are pretty pedestrian things, and if you manage to get most of the toothpaste out of the tube, most people would call that a success. But countless times we've all used the edges of our toothbrush, or the counter, or something to get the last bit of toothpaste out. Well, seems there is finally a solution. Crest has this cool little dispenser they call a "Neat Squeeze." It stands up in the medicine cabinet (another bonus), but it also squeezes out nearly ever dollop of toothpaste without all of that annoying flattening, rolling, or otherwise. How's it work?
Are you one of those people that squeezes out toothpaste onto your toothbrush, starts brushing your teeth, and two minutes in you say "Wait a second...." Yeah? Cool, this one's for you.
Toothpaste tubes are pretty pedestrian things, and if you manage to get most of the toothpaste out of the tube, most people would call that a success. But countless times we've all used the edges of our toothbrush, or the counter, or something to get the last bit of toothpaste out. Well, seems there is finally a solution. Crest has this cool little dispenser they call a "Neat Squeeze." It stands up in the medicine cabinet (another bonus), but it also squeezes out nearly ever dollop of toothpaste without all of that annoying flattening, rolling, or otherwise. How's it work?
Notice in the bottom there are three little holes in a circular pattern. This is the inlet of an air check valve.
If you cut open the bottom you'll find a very thin film of plastic heat (or ultra-sonically) staked down over it. Since the tube is otherwise sealed, when you squeeze the tube, the check valve is closed, and when the tube is released it draws air in through the air check valve.
Now, chop through the top of the container and you find a similar check valve, this time for the toothpaste. It consists of two plastic parts, a flapper and a face seal. These two parts make sure that when you squeeze the tube the toothpaste comes out, and when you release it the valve closes, and air is pulled into the tube. The toothpaste itself is contained in a metalized foil bag.
So, there you have it, a pair of check valves and you squeezing the tube will eventually empty the toothpaste, without ever flattening or rolling it.
1 comment:
Here I sit with a container of Neat Squeeze. I can feel that there is a lot more in there, but there is NO WAY to squeeze anything more out of it. I've had to lay it on the counter and put my weight on it to get as much as I have! I've tried waterboarding and bamboo shoots under the fingernails, and I can't get any more out of it. What's the secret? It's super irritating.
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