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Direct Black D-RSN Powder for Paper and Cotton Textile Dyeing sourcing visualCandidate for RFQ after CAS/CI and document verification
Back to sourcing hubCoatings & Pigments

Direct Black D-RSN Powder for Paper and Cotton Textile Dyeing

Buyer-facing sourcing candidate for Direct Black D-RSN, a black direct dye powder offered for paper and cotton textile applications. Overseas buyers should verify the exact CAS or CI identity, strength or shade standard, impurity profile, document set, packing configuration, and export classification before RFQ or sample approval.

Quick buying facts

Identify the grade, package, and import market before comparing suppliers.

Use this page to check the product identity, common specification points, document scope, package notes, and destination-market questions before sending a China sourcing request.

CAS No.: Not stated / N/A in source listing; buyer should request confirmed CAS or CI referenceDirect dye / black dye powderCandidate for RFQ after CAS/CI and document verification
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Identity and grade

Typical specifications

  • Product name: Direct Black D-RSN
  • Colour: Black
  • Appearance: Powder
  • Application: Paper dyeing and cotton textile dyeing
  • CAS No.: Not stated / N/A in source listing; buyer should request confirmed CAS or CI reference
  • EINECS: Not stated / N/A in source listing
  • CI No.: Listed as Black D-RSN; buyer should confirm full Colour Index name or number
  • HS Code: 32041400 as listed by source
  • Brand / trade name: Skydiro as listed by source
  • Customization: Available according to source listing
  • Production capacity: 12000 T/year as listed by source
Who uses this page

Target buyers

  • Paper mills sourcing black direct dye for paper coloration
  • Textile dyeing houses working with cotton fabric
  • Dye distributors serving paper and textile customers
  • Printing and dyeing chemical importers
  • Industrial colorant formulators requiring black direct dye candidates
Before matching

Documents to check

  • CAS number, grade, assay, and impurity profile
  • SDS, COA, TDS, HS code, and transport classification
  • Destination-market import documents before supplier matching
Package and route

Packing notes

  • Listed packing: 25 kg new carton box with pallet
  • Confirm inner liner, moisture protection, pallet type, pallet dimensions, and container loading quantity
  • Request batch-specific label format including product name, lot number, net weight, gross weight, origin, and shipping marks
  • Confirm whether sample packs, pre-shipment retained samples, and sealed reference samples are available for shade approval
Applications and sourcing options

Check whether this product fits the buyer's actual application.

Clear application, grade, package, and document notes help separate real sourcing demand from a vague price check.

Use context

Common applications

  • Paper dyeing qualification where a black direct dye powder is required
  • Cotton fabric shade-matching trials using buyer-approved lab standards
  • Distributor sampling program for regional paper and textile customers
  • Replacement sourcing where buyers need to compare shade, strength, solubility, and batch consistency
  • Export procurement requiring document review before commercial shipment
How we compare

Sourcing options

  • Request lab sample with COA and SDS before bulk RFQ
  • Ask for standard grade and customized shade or strength options
  • Compare 25 kg carton packing with alternative export packing formats
  • Request pre-shipment sample from production batch for approval
  • Use FOB, CIF, or buyer-nominated freight forwarder subject to document and DG confirmation
Human review

Compliance notes

  • CAS and Colour Index identity are not fully defined in the source data; confirm identity before import checks or customer qualification
  • Request SDS, TDS, COA, lot traceability, and export packing list before shipment
  • Confirm DG / non-DG transport classification with current SDS and carrier requirements
  • Check destination-market requirements for textile, paper, and consumer-contact applications before purchase
  • Source mentions ISO9001, OEKO-TEX, and GOTS; request valid certificates, scope, product coverage, and expiry dates if relevant to the end use
  • No regulatory approval or import clearance should be assumed from the listing alone
Buyer search paths

Related sourcing terms

These terms support long-tail discovery while keeping the page focused on useful product and China export buying context.

Direct Black D-RSNdirect black dye powderpaper dye suppliercotton direct dyeblack direct dye for papertextile dye black powderCI direct black dyeSkydiro Direct Black D-RSNHS 32041400 dye
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RFQ questions before supplier matching

Turn this product into a quote request.

Share target market, quantity, packaging scope, artwork status, delivery destination, and required documents so CHN Chemicals can prepare a cleaner supplier comparison.

Questions to confirm
  • What is the confirmed CAS number, Colour Index name, and Colour Index number for this Direct Black D-RSN grade?
  • What is the dye strength, shade standard, and test method used for batch release?
  • Can you provide a recent COA showing moisture, insolubles, strength, shade difference, and relevant impurity limits?
  • Is the product intended for paper, cotton textile, or both, and are separate grades available for each application?
  • What are the typical impurities or restricted substances monitored for export customers?
  • Can you provide SDS, TDS, COA, certificate of origin, packing list, and any applicable certification documents before order confirmation?
  • Is the product classified as dangerous goods for sea, air, road, or rail transport under the latest SDS?
  • What is the MOQ for commercial order, and what sample quantity is available for buyer-side lab evaluation?
Checks before quote
  • CAS and Colour Index identity are not fully defined in the source data; confirm identity before import checks or customer qualification
  • Request SDS, TDS, COA, lot traceability, and export packing list before shipment
  • Confirm DG / non-DG transport classification with current SDS and carrier requirements
  • Check destination-market requirements for textile, paper, and consumer-contact applications before purchase
  • Source mentions ISO9001, OEKO-TEX, and GOTS; request valid certificates, scope, product coverage, and expiry dates if relevant to the end use
  • No regulatory approval or import clearance should be assumed from the listing alone
Next step

Send the product page with your target quantity and market. A sourcing manager can then confirm sample options, supplier fit, packaging details, and open document gaps.