https://vibookmark.com/shopping/how-ink-flow-and-pigment-quality-affect-sketch-pen-performance/ Sketch pens have become indispensable tools for artists, designers, and students alike. Their versatility, precision, and vivid colors make them ideal for sketching, coloring, and lettering. But behind every smooth stroke and vibrant hue lies careful engineering. Two key factors that determine how well a sketch pen performs are ink flow and pigment quality. Thu, 20 Nov 2025 06:46:28 UTC en