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Freeze drying uses sublimation to remove water, water istransformed from solid to gas without the solution state. This prevents damage to colours and can remove water from deep in a structure.
But its expensive, and I wouldn't recommend running a vacuum at the levels required.
If its a cheap system your probably only evaporating drying - reducing the vapour pressure around the clothes so they dry fast.
In the winter if you live in a place that freezes overnight you can do this, my grandparents used to have to freeze dry their clothes in the winter and it worked fine. It is not expensive it if it free, but only in the winter.
So if you live in a cold place during winter, get yourself a clothes line and you can freeze dry your clothes.
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∙ 13y ago
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Is freeze drying a physical change or chemical?
Freeze-drying is a chemical change because it changes the actual composition of the object by removing water.
What is drying efficiency?
The coefficient of drying is a number about the utility of a dryer. A simple example : You have dirty clothes dry, and you wash them. So now, you have a totally of 4kg wet clothes and you put them on the dryer. The coefficient of drying K come from this formula : K = Weight of wet clothes / Weight of dry clothes So it depends from the speed of your dryer!
Is freeze drying physical change or chemical?
Answer: It is a chemical change, it changes the actual composition of the object by removing water.
What is vaccume freeze drying?
Under reduced pressure, under carefully controlled conditions, ice sublimes - it goes straight from ice to vapour - no liquid water. It is very useful for drying almost anything, but especially for anything that would be damaged by heating or boiling the water off. That is vacuum freeze drying - the name is often used without the "vacuum" included.
What steps would you take to dry wet clothes faster?
first squeeze the water from the clothes secondly hang it where the rays of sun are falling directly "your clothes will dry faster" or put the clothes in to the drying machine
Clothes drying on a clothes line is it Melt Freeze Evaporate or condense?
Evaporate
What is lyphilization?
freeze-drying
What two of state are involved in freeze drying?
The two changes of state involved in freeze drying are melting and freezing.
What are two changes of states are involved in freeze-drying?
The two changes of state involved in freeze drying are melting and freezing.
Which component of sun energy is responsible for drying clothes?
Ultraviolet rays of sunlight helps in drying of clothes.
Is freeze drying a physical change or chemical?
Freeze-drying is a chemical change because it changes the actual composition of the object by removing water.
How is drying by freeze drying possible at room temperature?
A good example would be a person hanging out wet clothing in freezing conditions. the clothes freeze as soon as they are on the line. however the amount of water in the air is far lower then the amount of water in the clothing. and whether the water is frozen or not it will evaporate and the clothes will dry. slightly quicker if there is a breeze. All of a sudden you can see the clothes being moved about by the wind and you know they are dry. I have seen this happen. Indians in the south American mountains used to freeze dry potatoes the same way in the mountains, by leaving them out in dry freezing conditions.
What are freeze dryers used for?
Freeze drying is a method of dehydrating a perishable product to enable long term storage or easier transportation. One well known application is freeze drying coffee.
Where can I buy a clothes drying rack?
There are several places you can find clothes drying racks online. You can try Walmart website, Ebay, Amazon, JcPenny, Kmart, or Sears. They offer clothes drying racks online and in store.
What stores sell clothes drying racks?
There are many stores that sell clothes drying racks. Some of the best stores that sell clothes drying racks are Wall-Mart, Target, Super Store and many more.
How much does air drying clothes save compared to drying them using a dryer?
It saves the total cost of running the clothes dryer.
What is the difference between lyophilization and freeze drying?
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