EchemiReviews 4

Our company subscribed to Echemi's Data Trade Service and paid them a thousands of dollars but never got our money's worth. Contacting their staff, Bingo Mao is a pain! Not returning calls, texts, won't pick up our international direct calls on his mobile phone! Pathetic excuses from their customer service. NEVER SUBSCRIBE ANY SERVICES FROM THIS COMPANY!

You get scammed, file a dispute with all the evidence they request, but they do nothing about it. Just go silent.

This DHA is extracted from seaweed and is healthier. I know Echemi, a very large and best company in China. It buys products from many very large manufacturers in China for sales, because China's labor costs are very low. But technology is enough to satisfy the extraction of these best things, so I bought it decisively. For these products from China, only the best can be exported, otherwise the customs will not export them, so you can buy them with confidence. I am in love with this product, you must buy it.

Reactive dyes: Also referred to as reactive dyes. This kind of dye might be a new type of dye created inside the 1950s. Its molecular structure contains numerous active groups, and under appropriate conditions, it might chemically speak with the fiber to create a covalent bond. Technology-not only for dyeing cotton, linen, silk, produced from made of wool, viscose, nylon, vinylon as well as other textiles.

Sulfur dyes

A number of these dyes are insoluble in water and organic solvents, but may be dissolved in alkali sulfide solution, and could directly dye fibers after being dissolved. Speculate the dye liquor is just too alkaline, it's not suitable for dyeing protein fibers. This sort of dyes has relatively uniform chromatogram, affordable and good color fastness, nevertheless cooler areas is not vibrant.

Disperse Dyes

This kind of dye has truly low solubility in water and offers very fine particles. It is a dispersion inside the dye liquor. It is a non-ionic dye. It's mainly useful for dyeing polyester and offers high dye fastness.

Acidity Dyestuff

These dyes are water-soluble, and most of them contain water-soluble genes for instance sulfonic acidity groups and carboxyl groups. It might directly dye protein fiber in acidity, weak acidity or neutral medium, nevertheless the wet fastness is poor.