Lac extract is an affordable alternative to obtain pinks, purples and burgundy reds on protein fibers using an alum mordant. However, you will need a small amount of citric acid to use with lac. 50g of lac extract will dye approximately 500g of fiber (1.1 pounds) to a dark red shade.

Lac is harvested by cutting the tree branches that hold sticklac. If dye is being produced, the insects are kept in the sticklac because the dye colour comes from the insects rather than their resin. They may be killed by exposure to the sun.

Lac extract yields crimsons to burgundy reds to deep purples. The colours are similar to those from cochineal but warmer, softer, and more muted. The lac dye has high light and washfastness on silk and wool.

Lac Dye | C26H35N3O11 | CID 134264 - structure, chemical names, physical and chemical properties, classification, patents, literature, biological activities, safety/hazards/toxicity information, supplier lists, and more.

As a major component of lac dye, LCA is usually chosen as a representative for the lac dye to describe their thermodynamics properties including adsorption, dyeability, fastness and shade variation of lac dyeing on silk and cotton.

Let’s follow the trail of natural dyes to lac in Southeast Asia, with a focus on Thailand and Laos. The soft red of lac in an eco-dyed sample by Judy Newland. More than 160 tree varieties play host to kerria lacca, which is found both wild and cultivated in Southeast Asia.

Oct 6, 2022 · Lac dye is a byproduct produced during the shellac purification process. Its primary colorant is laccaic acid (C20H14O11). Lac dye was an important dyestuff used since ancient times.

Jan 5, 2025 · The exploration of lac dye, a significant constituent of the lac exudate produced by the scale insect L. lacca, unfolds a multifaceted landscape that extends from its historical mentions to modern scientific inquiry. Specific habitats, cultivation conditions, and environmental factors have been shown to play a significant role in influencing ...

We employ the natural lac dye in powder form to produce pinks (light to dark shades), burgundy, purple etc by standardized dyeing process using different combination of natural mordants on fibers, fabric and garments with medium to good performance properties.

Lac is a very strong natural dye and 6 grams of Lac extract will dye two 100 gram hanks of Blue-faced Leicester superwash wool to a crimson and raspberry, respectively, depending on water quality and other factors.