Complaint
Natural Indigo Blue Dye 94% Granular Powder Indigo for Jeans Dyeing
The granular indigo is processed by spray drying the slurry of acid washing indigo with additive,This product is dark-blue uniform powdery or granular. It cannot be dissolved in water and common organic solvents such as ethanol and aether, but can be dissolved in hot aniline and melt phthalic anhydride. Its melting point in the closed capillary is 390-392°C, and it begins sublimating slowly at 290°C. It has very good sunburn endurance and application performance.
1.Introduction
Appearance:Dark blue Powder, Granule
Molecular formula: C16H10N2O2
Molecular weight: 262.67
CAS No.:482-89-3
HS No.: 3204.1510.00
Function :For dyeing on cotton fabrics and Jeans and making up indigo bromide or made into organic pigment.
| Item | original powder | Powder (Diffusion) | Granule |
| Appearance | Dark blue even powder | Dark blue even powder | Dark blue even granule |
| Content (Oxidimetry)% | ≥94 | ≥93 | ≥93 |
| Particbe size (-60 mesh)% | ≥96 | ≥96 | - |
| Moisture% | ≤1.0 | ≤1.0 | ≤1.0 |
| Fe3+ | ≤500ppm | ≤300ppm | ≤200ppm |
It is mainly used to dye cotton fibre .The pop "cowboy" clothes mostly are made by indigo blue dying longitudinal
yarn and white yarn interweaving;It can be used with sulfurated coloring matter;Also we can get indigo white,bromized
indigo blue from it,they are well used in food coloring matter,biochemistry etc
We are TOP 10 pigment manufacturer in China , and we have more than ten year export
experience for carbon black. Our carbon black have exported the following main markets:
1. European market : Spain / Portugal / Serbia
2. Middle East and central Asia: Saudi Arabia, Nepal,Turkey, Ukraine, Uzbekistan, Bangladesh and pakistan.
3. African: Kenya,Tanzania,Nigeria, Tunisia and sounth africa and so on.
4. Southeast Asia: Singapore, Vietnam, Indonesia Australia.
5. South America: Brazil, Argentina,Chile Peru, Colombia and Mexico.
With more than 10 years experience in chemical industry, Henan Sinowin Chemical Industry Co.,Ltd. is one of
the premier Supplier.Our aim is to provide customers the high quality products, most competitive pricing, the
shortest delivery time and the unequaled service. To reach this, we keep our advantages:
+10 years experience
With our good experience, we offer detailed technical support and advice to assist customers. We communicate
closely with customers to establish their quality requirements.
Consistent Quality
Our plant has strict quality control in each manufacturing process. Our goods passed BV,ISO9001 & SGS
which quality can be control and guaranteed. Meanwhile all the materials are tested before each shipment
in our laboratory to double confirm the quality.
Most competitive pricing
With more than 10 years working experience, we always offer the most competitive pricing to customers to
help lower their cost in application.
Shortest delivery time
90% of orders are shipped within 7-10 days after receipt of the prepayment or workable L/C.
our factory have five production lines and one backup production line,can support any urgent orders.
Respond in 24 hours to inquiry, feedback or other requirements Our experienced staff is dedicated
to answer all of your inquires, feedback or other requirements in 24 hours.
We welcome you to contact us for more information and look forward to working with you.
