The open circulatory system is a system in which a fluid in a cavity called the hemocoel bathes the organs directly with oxygen and nutrients and there is no distinction between blood and interstitial fluid; this combined fluid is called hemolymph or haemolymph.
Be sure to pre-heat dryer. The heat set with an iron it's important to note that temperatures vary from iron to iron. When using an iron, pre-heat iron to maximum temperature safe for fabric. Place aluminum foil on ironing board and the painted side of the fabric down. Press against the backside for at least 15-25 seconds per square foot.
Step 5. Pour hot water into a bucket or sink. Pour enough water into the sink or bucket that the item can move around freely in the water. Use half of a bottle of liquid Rit dye and three gallons of hot water for each pound of fabric. Pre-dissolve the liquid Rit dye in two cups of hot water.