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Two Technical Questions

post #1 of 6
7/23/10 at 2:37pm
Thread Starter 
1.) How can you measure the amount of liquid within a painted bottle without ruining the finish by scraping it off or even by spraying the juice into a bowl and -then- measuring? Oh...and by "painted", I mean a bottle like GIT by Creed.

2.) Can the color tone of juice change with each batch made? Meaning, is it possible to receive a yellow-in-tone Rose 31 and then receive a some what clear Rose 31 in your next order? Or should the color be fairly consistent?
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post #2 of 6
8/9/10 at 3:55am
1) I can only see two ways - the way you suggested or by weight (but you'd have to know how much an empty bottle and a full bottle weigh).

2) The color can change when exposed to light or heat. I guess the color could also change after a reformulation. But if there's significant color change between two bottles of the same formulation, I'd assume discoloration has taken place due to heat/light exposure.
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post #3 of 6
8/9/10 at 9:58am
1.) Have you ever left a half-empty can of pop out on warm humid day? Remember how only the bottom half had condensation, only to the level of the liquid on the inside? The same should happen with perfume bottles. Put it in the fridge for a couple hours then set it out on the counter. Once the top half of the bottle, the part not touching liquid on the inside, warms up then you should see the liquid level. However, you would also need to know how thick the bottom of the bottle is in order to be accurate, which may be a problem.
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post #4 of 6
8/9/10 at 10:05am
Quote:
Originally Posted by DocmanCC View Post

1.) Have you ever left a half-empty can of pop out on warm humid day? Remember how only the bottom half had condensation, only to the level of the liquid on the inside? The same should happen with perfume bottles. Put it in the fridge for a couple hours then set it out on the counter. Once the top half of the bottle, the part not touching liquid on the inside, warms up then you should see the liquid level. However, you would also need to know how thick the bottom of the bottle is in order to be accurate, which may be a problem.

That's a neat trick!
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post #5 of 6
8/12/10 at 4:57pm
Thread Starter 
Quote:
Originally Posted by DocmanCC View Post

1.) Have you ever left a half-empty can of pop out on warm humid day? Remember how only the bottom half had condensation, only to the level of the liquid on the inside? The same should happen with perfume bottles. Put it in the fridge for a couple hours then set it out on the counter. Once the top half of the bottle, the part not touching liquid on the inside, warms up then you should see the liquid level. However, you would also need to know how thick the bottom of the bottle is in order to be accurate, which may be a problem.

Brilliant, thanks!

Thanks to you, too, Point Blank!
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post #6 of 6
8/12/10 at 9:31pm
If natural materials are used in formulation, their color can vary from one batch to another, causing the color of the perfume to change even if it hasn't been reformulated or exposed to light/heat.
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