Description
Discharge paste is a printing process that is used to print designs on dark or colored fabric. It is a type of screen printing technique that involves removing the dye from the fabric, leaving the design in the original color of the fabric. This creates a unique look where the design appears to be “burned” into the fabric.
Technical specifications of discharge paste include:
Composition: Discharge paste typically consists of a reducing agent, an activator, and a carrier. The reducing agent is responsible for removing the dye from the fabric, while the activator helps to speed up the reaction. The carrier helps to distribute the paste evenly on the fabric.
Application: Discharge paste is applied to the fabric using a screen printing technique. The screen is coated with the paste, and then the design is transferred onto the fabric by pressing the screen onto the fabric.
Drying time: Discharge paste usually requires a longer drying time compared to other screen printing inks, as the reaction time for removing the dye from the fabric can take several hours.
Compatibility: Discharge paste is not compatible with all types of fabric, and it is important to choose the right type of paste for the specific fabric being used. Some fabrics may not respond well to discharge paste, leading to a lackluster or faded design.
Health and safety: Discharge paste contains chemicals that can be harmful if not handled properly. It is important to wear gloves and protective eyewear when working with discharge paste, and to follow proper ventilation procedures.
Results: The end result of discharge printing is a soft, breathable print that has a vintage or “burned-in” look. The design appears as the original color of the fabric, which creates a unique and eye-catching effect.