In Photoshop or most graphics editors, here is what to do: Hide visibility of the background layer by clicking the eye icon. Do you see a checkered canvas in the background? If so, you have transparency in your artwork. Another way to check is to place an image underneath your artwork. If you can see the new image behind you original artwork, your artwork has Transparencies. We highly recommend avoiding Transparencies.
To get this effect create a solid file. Now create a layer mask and use a soft brush to feather the edges. This will give you a nice faded look and maintain the integrity of your print.
If you set up your masks correctly, your Transparencies should work. Transparencies are best on lighter garments. For darker garments, white ink is used underneath your color Transparencies. This may show a speckled gritty look.
Please see examples shown below.
If you are creating artwork with Transparencies, keep in mind the color of the garment. Not all artwork Transparencies look good on all color garments. To test this, try adding the color of the garment as a background layer. If you are happy with your masterpiece, remove the background tester layer. If you are unsure, use solid colors.
When printing with TMF, artwork colors that are the same as the garment color will not print. Remove for any potential errors.
Ex. Artwork with Transparencies vs Garment Color