Having purchased a particular item of clothing, a person may notice a bag with a piece of fabric.
This “bonus” is very often included with new clothes.
Many people are sure that this piece of cloth is needed to cover a hole in a thing if it gets torn.
In other words, the piece of cloth should, according to popular belief, be used as a patch.
Of course, nowadays, few people would "repair" clothes in this way. Therefore, in most cases, the bag with the scrap is simply sent to the trash can.
Don't make this mistake! The thing is, the piece of fabric that comes with the garment is not a patch at all. This material has a completely different purpose.
This scrap is needed to check the material’s “reaction” to washing.
Before you put a new piece of clothing into the washing machine, you need to wash the piece of fabric.
Then the person will understand how powder and other means affect the material.
In this way, the owner of the clothes saves himself from having to risk losing the new item.