On clothes and other fabric trich and Trichomoniasis can only live on the clothes and other fabric for only 45 minutes.
However it's still good to wash the clothes or other fabric to help kill the Trichomoniasis or Trich sooner than waiting.
But if it's been 45 minutes or longer since the person wore the clothing then the Trichomoniasis or Trich will have died off.
The Trichomoniasis only lives 45 minutes on clothes, towels, toilet seats and even bath water.
On hard surfaces though other than toilet seats the Trichomoniasis can live up to 1 to 2 hours.
If someone in your house has Trichomoniasis you should disinfect things in your house every few hours or so to kill the Trichomoniasis off so that it does not possibly spread to someone else.