3 washing process, 4 low temperature washing process

Which factor does not belong to the Sinner`s Circle?
1. textile type
2. time
3. chemical Action
Which factor is sometimes shown as additional factor to the Sinner`s Circle?
1. mechanical action
2. water
3. bleach
At which washing temperature is the removal of fat, oil and grease more efficient?
1. at room temperature
2. At 70°C
3. higher than 70°C
Why is it necessary to have more chemical action at lower washing temperature?
1. otherwise it does not smell nice
2. otherwise insufficient strength to kill bacteria
3. otherwise there is no foam formation
The time in minutes necessary to kill 90% of the present bacteria
1. only depends on the amount of chemicals applied
2. increases linear with decreasing temperature
3. increases exponentially with decreasing temperature
Why can, due to lower washing temperatures, the load of polyester-cotton workwear be increased?
1. because less program changes had to be made due to equal washing temperatures
2. there is less risk of excessive wrinkle of the workwear
3. this is due to less wear and tear of the workwear
What makes chemicals for lower washing temperatures more expensive?
1. the combination of enzymes and organic bleaches, such as PAP
2. the fact that they are biodegradable
3. the buffer chemicals that maintain a constant pH above 9
Economical benefit of washing at low temperature depends on
1. textile savings and chemical costs
2. labor costs
3. bacterial growth
Economical benefit of low washing temperature needs to be evaluated for
1. each laundry
2. bacterial growth
3. labor costs

3 washing process, 4 low temperature washing process

We now come to the saving possibilities. That is, there are a lot of possibilities to design a sustainable process. Module 3 chapter 4 handled two of them.