Lignosulfonate used as a pigment dispersant in paints, coatings, inks, textile pigments or aqueous colour systems belongs to GreenAgrochem.net, the Green Agrochem Surface & Interface Technology Division. Performance depends on the exact lignosulfonate grade, pigment surface, binder, pH, water quality, salts and milling process.
Use the complete Lignosulfonate as a Pigment Dispersant: Selection and Formulation Guide for grade variables, dispersion mechanism, trial design, mill-base and finished-formulation testing, limitations and technical enquiry requirements.
Former Numerical Data and Evidence Status
| Former value | Evidence/status | Required treatment |
|---|---|---|
| Molecular-weight bands of 5,000–10,000 Da, 10,000–30,000 Da and >30,000 Da assigned to specific dispersion behavior. | Unverified on the former page; no exact lignosulfonate, pigment, molecular-weight method, calibration or primary source. | Not Green Agrochem grade specifications or universal selection limits. Publish only with the tested material, analytical method, formulation and verified source. |
| Sulfonate/sulfur value of 1.45–2.04 mmol/g. | Basis and source not identified. | Do not use as a product requirement without exact analyte terminology, test method, grade and source. |
| Approximately 3.5 wt% sulfur for improved hydrophobicity or pigment dispersion. | Unverified research-style statement with no identified system. | Restore only as a literature-reported result tied to the original material, pigment, conditions and source. |
Claims Requiring Formulation Evidence
| Former claim | Status | Correct approach |
|---|---|---|
| Sodium grades are generally superior to calcium grades. | Unsupported universal comparison. | Compare exact grades on equal active-solids basis in the actual pigment and binder system. |
| Stable suspension, no settling, higher pigment loading, stronger colour, longer shelf life, fewer defects and improved durability. | Unverified formulation outcomes. | Measure viscosity, particle size/fineness, sedimentation, colour strength/shade, gloss, hiding, filtration and storage against a matched control. |
| Eco-friendly, biodegradable, sustainable, low impact and cost-effective. | Environmental and commercial claims unsupported for every grade, process and comparison. | Use current product-specific environmental evidence and a defined cost-in-use comparison. |
Information Needed for Pigment Screening
- Pigment identity, surface treatment, particle size and loading.
- Aqueous phase, binder, pH, water hardness, salts and complete additive package.
- Milling equipment, order of addition, energy/time, temperature and let-down procedure.
- Current dispersant, target defect, colour constraints, test methods and storage requirements.
- Exact-grade TDS, SDS, COA, sample quantity and annual demand.
Compare the Surface & Interface Technology portfolio and Dispersant NNO grades, or contact info@greenagrochem.com.
Division note: LigninCorp continues to manage industrial procurement for concrete, ceramics, mining, drilling and industrial binder products.
