DM 120 1st Edition Lecture 15 Outline of Last Lecture Textile Dyeing Color Import Classes of Dyeing Color Formulation Outline of Current Lecture Dyeing effects differences Printing All types Manufacturing issues Current Lecture Dyeing Effects Cross Dyeing fabric of two fiber dyes having different dye affinities is dyed in a single bath of different dye colors Union Dyeing two classes of dye I same bath to produce color Resist Dye color prevented from entering fabric in specific areas and creating patterns Batik hot wax on fabric and then removed wax price related to labor and quality Tie Dye yarn or fabric wrapped to prevent dye penetration Ikat yarns tried to prevent dye penetration Textile Printing Print Paste thickened dyes or pigments Adds color to fiber and produces front and back side dyed in a localized pattern Direct Printing color applied directly to desired surface Block hand pressed wood clock that stapes pattern onto fabric Screen Print screens etched with design that controls location of pattern Flat screen screen is flat with a short amount of yardage Rotary Screen screen is cylinder form to let out link used for a lot of yardage Direct Roller Print roller etched design which picks up paste and presses onto fabric up to 16 colors on rollers Duplex Printing with a pattern on both sides of the fabric Types of Print Direct design is oriented directly on white cloth a Can tell back and face side Overprint design printed over previously dyed fabric Pigment direct prints mad with pigments a Dry Printing the process of printing Heat Transfer design is oriented on transfer paper then pressed on fabric Discharge removing color with bleach which then tenders weakens the fabric a Cannot tell face and back side Wet on dry 2nd color is printed on top of previously printed color when 1 st color is finished dyeing Wet on Wet 2nd color is printed over 1st color while still wet a Creates Fallon 3rd color that is created b Strike off sample of first several printed designs Performing Issues Off the grain printing Produces different color produces out of register