What are the key properties of Sulphur Black?

It is cheap, has good wash fastness, is easy to apply, and turns green-black in sodium sulfide solution.

What is the loading quantity for a 20-foot container?

A 20-foot container can hold 800 bags (20MT) or 640 drums (16MT).

Fabric

Name: Sulphur Black Dyes for Textile/Dying/Jean/Fabric
Brand: Zhengzhou Kelai Chemical Co., Ltd.
SKU: 753719582

Henan, ChinaZhengzhou Kelai Chemical Co., Ltd.

US$1,350.00

5-19 Tons

US$1,200.00

20-49 Tons

US$1,100.00

50+ Tons

Sample price:US$0.00/piece.Request sample

Product profile

Customization

Available

CAS No.

1326-82-5

Formula

C6h4n2o5

Model NO.

sulphur black

EINECS

215-444-2

Colour

Black

Appearance

Powder, Granular, Crystal

Usage

Cosmetic, Leather, Paper, Textile

Application Material

Textile

Type

Synthetic

Solubility

Varieties

Sulphur Black Br

Production Method

Starbucks Roast

Product Name

Sulphur Black

Model

200%/220%/240%

Grade

Top Grade

Application

Textile

Strength

100%-240%

Molecular Weight

184.1

Sulphur Black Fomula

C6h4n2o5

Degree of Fineness

3% Max

Moisture

2.9% Max

Free Sulphur

0.31%

Degree of Fineness 

3% Max

Sample

Available

Storage

Cool, Dry and Ventilated Place

Packing

25kg Net/PP Bag or Customized

Loading Quantity

20mt/20'container

Transport Package

PP Bag or Kraft Bag

Specification

25kg

Trademark

Kelai

Origin

Henan

HS Code

32041911

Production Capacity

20000 Mt/Year

Key features

Versatile Textile Application: Suitable for dyeing cotton, cambric, viscose, and vinylon fabrics.

High Wash Fastness: Offers excellent color retention and durability on cotton materials.

Cost-Effective Solution: Economical choice for large-volume cotton dyeing operations.

Multiple Strength Grades: Available in 200%, 220%, and 240% strength options.

Factory Direct Supply: Direct from manufacturer ensuring quality control and competitive pricing.

Free Sample Available: Customers can request free samples for quality verification.

Customized Packaging: Options include 25kg bags, drums, or customized packing solutions.

Established Export Experience: Over ten years of international trading experience since 2015.

Company profile

Zhengzhou Kelai Chemical Co., Ltd.

Henan, China

Business Type: Manufacturer/Factory, Trading CompanyExport Year: 2015-01-21Average Response Time: ≤2.42hTerms of Payment: LC, T/T, D/P, etc.International Commercial Terms(Incoterms): FOB, CFR, CIF, DDP, DAP

AI-Powered supplier vetting

SummaryZhengzhou Kelai Chemical Co., Ltd. is identified as a trading company headquartered in Zhengzhou, Henan, with permitted import and export activities. The provided information describes fine-chemical R&D, production, operations, and exports to more than 68 countries, although other records characterize the entity as a chemical-products trading business. It reports ISO 9001 and ISO 14001 certifications, OEM/ODM availability, recent new-product activity, and multiple customization options. Service logistics include warehousing, contract-carrier transportation, and stated lead times within 15 working days in both peak and off-season periods. However, it has no overseas showroom, agents, branches, or offline trade-show participation, and no SDK is available. Financial records are indicated for 2023–2025, but no substantive financial-performance evidence is provided. Supplier-management procedures are not documented, and customer evidence is limited to general claims of OEM service for known brands and exports...

Supplier typeThe supplier is explicitly classified as a trading company, with permitted import/export activities and a Zhengzhou, Henan location. Its background description also states involvement in fine-chemical R&D, production, and operations, so the available records present both trading and product-related capabilities.

CertificationsThe supplier reports holding ISO 14001 and ISO 9001 certifications. These are explicit certifications relevant to environmental and quality management systems.

After-Sales capabilityService support includes warehousing, contract-carrier transportation, and stated lead times within 15 working days in both peak and off-season periods. However, the supplier reports no overseas showroom, agents, branches, or offline trade-show participation, and offers overseas services in zero countries; therefore, after-sales coverage is not demonstrated as strong, particularly internationally.

R&D capabilityThe supplier reports R&D capability, at least one new product during the past year, and ODM services; its company background describes fine-chemical R&D. However, it explicitly has no available SDK, so innovation support is evidenced for product development but not for SDK-based integration.

Customization capabilityThe supplier explicitly offers customization from samples, full customization, minor customization, flexible customization, and customization from designs. It also reports ODM availability, providing direct evidence of broad customization support.