Effect of Solvent in Human Hair Dyeing with Natural Dye (I)

Comparison of dyeing of polyester fibers with natural dye and bio-mordant

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 ...

The Pattern of Hair Dyeing in Koreans with Gray Hair

BACKGROUND Hair graying is considered as a part of normal ageing process. Nonetheless, this process raises a significant cosmetic concern, especially among ethnic Korean elderly whose baseline hair color is black. For this reason, Korean elderly dye their hair with frequency despite the risk of dermatologic problems such as allergic contact dermatitis. OBJECTIVE In this study, the authors inv...

OPINION ON Intermediates and reaction products of oxidative hair dye ingredients formed during hair dyeing

OPINION ON reaction products of oxidative hair dye ingredients formed during hair dyeing processes

Dyeing Properties and Color Fabrics Using Natural Dye and Mordant

An ecological approach has been obtained by using natural dyes and mordant for dyeing process. Fabrics dyed using myrobalan extract as natural mordants and green dye. A red color were obtained by using theses mordants. The color of dyed fabrics was investigated in CIELab L, a and b and K/S values. Finally, all dyed fabrics were tested for wash and light fastness properties as per ISO standard t...