cotton and polyester puma sock I washed with some pooped underwear, so I don’t know if this sock looks brownish due to fecal matter.
I used a cold cycle and abundant detergent. Every other undie looks fine.
I don’t know if I should leave the piece to rinse in a cold water bucket with some detergent and wash again.
It really depends on what brand of sock and where you got it. The trick is to go there again and get another pair.
P 🅾️ 🅾️ p s 🅾️ c k.
Some kinds of black dyes are actually just really dark brown. When they start to fade they turn lighter which reveals the brown colour. There’s no way a poop stain transferred to your sock in the laundry. The enzymes in laundry detergent break that stuff down and keep it suspended in the water.
Poly-cotton shouldn’t have reacted like that.
Poop, by itself, doesn’t do much of anything to black dyes. At most, you might run into a spot where it weakened the cotton fibers, but it should have done that only where the feces was in direct contact with the fabric. Poo can be acidic enough to weaken some natural fibers, I’ve just never seen it do so after being soaked and diluted by a significant amount of water.
So, I’d expect the undies to be discolored, not something washed with them.
The only reason it matters is that if the fabric of the sock is damaged, you’ll have issues getting any new dye to do much.
But that’s the answer, dye. You can try washing it again to see if the color change is from residual detergent (which isn’t usually going to only appear on one sock and not the things touching the sock as well), but once cotton loses pigment, you have to apply more to get it back.
Cheap option is a sharpie. The color won’t match exactly, but it’s cheap and fast Rit dye is the next option, but the black tends to be more of a dark gray on poly blends, in my experience. Heck, it’s barely black black on cotton. And it tends to wash out to a dark gray in a few washes even then. I’m not sure where you’d get the dyes that manufacturers use, I’ve never had call to try. But that’s the final option.
But, when you wash/rinse it to see if it’s residue or whatever, cold water isn’t special. Warm or hot water would dissolve the likely culprits better, but don’t use a detergent. The goal is to get out any residue, not add in more soap that could be what’s causing the color change to begin with.
I also noticed you said “abundant detergent”. Extra laundry soap isn’t beneficial. You don’t really get things cleaner after a normal amount for the size of the load, you just get soap left behind.
Fun fact, hotels routinely buy permanent red dye. I used to work for a major distributor of hotel supplies.
I believe you are talking about the yellow discoloration. That’s from leaving the clothes dirty for an extended amount of time and when you wash the detergent turns the stains yellow instead of removing them. You are letting your pile of clothes build up too long.
