4 - Talking to your classmates and with the help of your Chemistry teacher, discuss and write:
a) What change(s) did the fabric go through as a result of being soaked in a solution with white vi-
negar? Would the result be the same if white vinegar were not used?
b) What other possibilities of natural dye could you use to tie-dye cotton fabric?
c) What is the role of heat in the process of dyeing?
d) What is the environmental advantage of using natural dyes?
Soluções para a tarefa
Resposta:
a) What change(s) did the fabric go through as a result of being soaked in a solution with white vinegar? Would the result be the same if white vinegar were not used?
R: Because he's a chemist.
b) What other possibilities of natural dye could you use to tie-dye cotton fabric?
R: You can use berries, flowers, tree bark, leaves and nuts. Keep in mind that the flower or berry color may not be the resulting color on the fabric. For example, you can get a light pink avocado bark and pit. Berries or strawberries also create a pink hue.
c) What is the role of heat in the process of dyeing?
R:
d) What is the environmental advantage of using natural dyes?
R: Thus, through the use of natural dyes it is possible to achieve a Cleaner Production (PmaisL), which aims to reduce the impacts generated on the environment in the life cycle of products (CEBDS, 2020).
fiquei com uma certa dificuldade na C, mais é isso ai.
Resposta:
c) Cook the beets to form the color of the paint.
Explicação:
espero ter ajudado :)