Thickeners control pastes rheology, dye transfer, and fixing efficiency, making them essential in textile printing. Thestability, color compatibility, and reproducibility of conventional natural and modified polysaccharide thickenersare limited, while synthetic versions pose toxicological and environmental issues. In order to improve performancein Direct, Reactive, and Disperse dye printing, this study examines flaxseed gel as an environmentally acceptablethickener and assesses derivatives modified by acrylation. The findings show that acrylated modified thickenersprovide better color strength and washing fastness than gum indalca, ZnO and TiO₂ modified thickeners. Notably, a40.27% increase in color strength is achieved in Reactive dye printing, with consistently high performanceobserved across all dye classes. These findings highlight the strong potential of acrylated flaxseed-based thickenersas sustainable, high-efficiency rheology modifiers, contributing to advancements in green and performance-driventextile printing technology.