There arc several well-known methods of iron hematoxylin staining of protozoa in smears and tissue sections, viz, Heidenhain's, Mallory's, and Weigert's. In the first two of these methods, the mordant, an iron salt, and the stain hematoxylin, are applied separately; and in Weigert's method, the mordant and the stain are mixed up immediately before staining. Though excellent results can be obtai...

In this study, dyeing of two regenerated polyester fibers, poly-trimethylene terephthalate (PTT) and poly-lactic acid (PLA), with natural dyes were compared with that of poly-ethylene terephthalate (PET) fiber. Lac was used as the primary natural colorant while Catechu was chosen as a natural color that can also act as a biomordant. The effects of temperature, initial pH of dye bath and dyeing ...

Many handmade ancient and recent oriental wool carpets show outstanding brilliance and persistence of colour that is not achieved by common industrial dyeing procedures. Anthropologists have suggested the influence of wool fermentation prior to dyeing as key technique to achieve the high dyeing quality. By means of μ-XRF elemental mapping of mordant metals we corroborate this view and show a de...

Synthetic dyes are hazardous to the environment and humans due their toxic recalcitrant nature. Hence, present study attempts produce eco-friendly dye from sago industrial waste using S. marcescens SS1. The produced by bacterial bioconversion of was characterized GC-MS obtained 13.423 acquisition time, which is similar standard prodigiosin. effects dyeing parameters were optimized for Jute fabr...

Carthamin, the natural dye of carthamus tinctorius (Golrang) was separated by soxhlet extraction and further purified in good yields. Its mordant dyeing of wool, using potassium dichromate as mordant, showed a high washing fastness (above 4). Mordanting by "sweet chrome", "sour chrome", and "reduced chrome" proved that last one to be superior.

Havacıva grass used in this study is one of the natural plants and belongs to genus Alkanna family Boraginaceae. strigosa Boiss. & Hohen. plant known as Havaco or Havaciva region. In study, dyes derived from root plant, which was introduced a new record for Turkey 2017, given. As result different colors with without mordant were obtained. A total 9 dyeings made research using dried wet grass. S...