Plan a trial for your application
Cotton yarn exhaust dyeing
At equal yarn count and liquor ratio, compare dye uptake curves, levelness and shade depth after washing.
Color matching with dye blends
With the target trichromatic combination, compare hue drift during heating and fixation.
Purchase specifications and incoming inspection
Use these properties to compare grades within the product family. Example figures refer to the cited grade or source. Confirm the offered specification, packaging and lead time in the quotation. Jacquard Procion MX · Reactive dye family ↗
| Property | Unit | Published or agreed specification | Test conditions and checks |
|---|---|---|---|
| Relative tinting strength | % | Agree for the grade and end use | Specify fibre, reference sample, shade depth and colour measurement method. |
| Color difference | ΔE | Agree for the grade and end use | Agree the illuminant, measurement geometry and calculation formula. |
| Wet fastness | Grade | Agree for the grade and end use | Specify the fabric used to assess staining and the wash conditions for the end-use test. |
When approving a sample, record the grade, methods, limits and specification revision. On receipt, match the packing lot number to the lot-specific COA and record the measured values and release decision.
From samples to commercial delivery
Packaging and receiving
Pack separately by commercial shade, strength grade and lot. Agree the standard dyed sample.
Storage and handling
Check moisture-related caking, destination-market restricted-substances documentation and arrangements for replenishment across lots.
Sample and order lead times
Specify colour code, surface treatment or filler grade and whether a single lot is required. Confirm trial quantity, MOQ, retention across lots and arrival.
Questions from the plant
Why does the shade difference increase after washing despite equal initial depth?
Compare fixation, removal of unfixed dye and washing. Keep samples before and after soaping.
Why does a mixed shade drift from the start to the end of a run?
Check uptake curves for each dye and changes in bath conditions. Trial the individual dyes in parallel.
Report a delivery or batch issue
Include the order number, lot number from the package, label photos and inspection records for the affected lot. When retesting, check Relative tinting strength, Color difference, Wet fastness.
Request documents for your application
TDS · Technical data sheet
For grade selection and sample approval, specify the grade and revision required.
SDS · Safety data sheet
Specify the country or region of use and the required language.
COA · Certificate of analysis
Request a sample COA during supplier review. For incoming inspection, provide the actual lot number.