Why did it lose its texture?

Hi so, its been like what, 1 week since i bought my define jacket. The jacket had kinda like a silky texture, it was really soft and at the touch it felt different. It wasnt til yesterday that i washed it, i followed all recommendations, delicate washing with cold water and letting it dry naturally, and now it feels a bit.. rough? The texture doesnt feel like before, its not damaged but the texture doesnt feel like the first time I bought it. Does someone knows why?