... shirt printing, you can printing directly, don't need to do any pretreatment. B. we have the ... we have heat press machine. After printing, we need to make the color fastness on the fabric, so ... glass , ceramic, metal, paper, leather, wood 3.Do i need to do some pretreatment or aftertreatment ?no, you don't ... need. we have developed muiti-functional ink, it is ...