Exhaust · high fixation
Bifunctional HF
Yellow HF-4GL to Black HF-GSP, with C.I. Yellow 160A, Red 222, Blue 221 and more. Light 4 to 6-7, washing 4-5 on most shades. Starred H/C grades are heavier shades.
Dragonfix · Cotton · United States
Dragonfix fiber reactive dye in five ranges, HF, vinyl sulfone, HE, P and new type, more than 90 shades on cotton, with fastness and solubility for each shade.
Samples and data sheets come straight from the team that makes the product.

Product brochure
The Dragonfix brochure lists every shade at 3% owf on cotton (blacks at 6%), with C.I. Reactive number, fastness to light (xenon), washing at 95°C and perspiration in acid and alkali, split into change of colour and staining on cotton, plus solubility in g/l at 50°C.
Exhaust · high fixation
Yellow HF-4GL to Black HF-GSP, with C.I. Yellow 160A, Red 222, Blue 221 and more. Light 4 to 6-7, washing 4-5 on most shades. Starred H/C grades are heavier shades.
Classic VS range
Yellow FG, GL, GR, Orange 3R, Red RB and 5B, Violet 5R, Blue R and BB, Turq. Blue G, Navy GG, Brown GR and Blacks B, RL, NR. Light 4 to 5-6, washing 4 to 5.
Hot exhaust · printing · XL
HE for hot exhaust dyeing, P for printing including Black PN, and the XL, HW and H/C new type grades for deep blacks and navies. Washing 4 to 4-5, solubility 100 to 200 g/l.
Buying it right
A fiber reactive dye bonds to the cotton, which is why it holds through repeated washing. The catch is that each range is built for a different process: exhaust, hot exhaust, printing or deep shades.
Dragonfix covers the five. HF for high fixation in exhaust, vinyl sulfone for medium temperature, HE at 95°C, P for printing and H/C grades for deep blacks and navies.
Each shade lists light, washing and perspiration fastness, plus solubility at 50°C. Your dye house can pick the range by its machines and its fastness target.
The partnership
Support
Samples, datasheets and technical answers come straight from the team that makes the product. Formulation advice, matching against your current reference and follow-up after delivery are part of the partnership, included from the first order.
Product
Seven registered brands, from Dragon Dyes to Chemtech, all backed by Hongda's in-house R&D teams. Dyes, pigments, additives and functional chemicals come from the same group, so you can widen your catalogue while keeping a single supplier.
Experience
Documentation, logistics and compliance are routine here after three decades of cross-border trade. Hongda exports to more than 30 countries and works with over 500 distributors worldwide, so the paperwork your market requires has most likely been solved here before.
Supply
You buy at origin, in the quantities a distributor needs to stay competitive in its market. Volume pricing, consolidated shipments and production planned around your forecast give you the economics to defend margin against any local reseller.






Questions

The bifunctional HF and vinyl sulfone ranges are listed for exhaust dyeing of cotton knits and wovens.
Yes. The P range covers reactive printing on cotton, Black PN included.
Most shades sit at 4 to 4-5 in the HF, HE and new type ranges, and 4 to 5 in the vinyl sulfone range.
Solubility is listed at 50°C for every shade, from 100 to 200 g/l on the new type grades.
Where it ships from
Hongda ships from Ningbo, China, to distributors in more than 30 countries, North America included. Samples, data sheets and documents for each order come from the team in Ningbo.
Strategic partners
Write directly to the partner team, or send the short application. It reaches Hongda's partner team by email.
info@hongda-chem.comOr call the group directly: +86 574 87907888