Not much but temp is supposed to effect penetration, Just follow instructions per dye maker
The powder may not completely dissolve and cause spots. Either one will dye to the same color. Putting salt in the dye bath will help set the color.
How can I remove dye stain in the bath
To redye bleached out clothes, first choose a fabric dye suitable for the material. Follow the instructions on the dye package to prepare the dye bath. Submerge the garment in the dye bath for the recommended time, agitating occasionally. Rinse the garment thoroughly with cold water, then wash it separately to remove excess dye before drying.
One will dye your hair blonde and one will dye your hair brown.
Cold dye is denser than warm water, so it sinks instead of rising. When cold dye is added to warm water, it stays at the bottom because the warm water is less dense and stays on top. This difference in density causes the cold dye to remain submerged in the warm water.
the difference in densities caused by the pattern of movement observed when the hot dye was placed in cold water was that the dye rose quickly - since its less dense and began to cool which is why it dropped.
Bleach
The cold dye did not immediately rise into the warm water because of the difference in temperature. Cold liquids are denser than warm liquids, causing the cold dye to stay at the bottom initially. As the dye warms up, it becomes less dense and starts to rise through the warm water.
Hair dye is the initial stage. The intensifiers are used later if desired to boost your colour.
Yes you can!
Not really, in fact, many players use the Dye backs and a Proto tip.
just set it out until you detect it is dry!