How to distress a t-shirt design for screen printing

Coreldraw 2018. I have created the design in vector with a monochrome bitmap as part of the design. I have a distress texture in monochrome bitmap that I have on top of the design. This is perfect for mockups and showing the customer what it will look like. However it is not what is needed for the screen print operation. I need to remove the distress texture from the design. Any help or walkthrough would be greatly appreciated. Do I have to convert the raster / monochrome bitmap to vector for this or can I use the raster texture? I have used corel for several years but have only used it for vector objects / designs. I am just learning how to use the raster and photo paint portions of this amazing software.