Biodegradable Chelating Agent for Textile Dyeing: Tetrasodium Iminodisuccinate (IDS) | Yuanlian Chemical

In the European textile and dyeing industry, the shift toward Circular Chemistry and REACH-compliant auxiliaries is no longer a trend—it is a regulatory requirement. For decades, traditional sequestering agents like EDTA and DTPA have been the industry standard. However, their poor biodegradability has led to significant environmental concerns regarding wastewater toxicity.

Yuanlian Chemical is proud to offer Tetrasodium Iminodisuccinate (IDS), a high-performance, 100% biodegradable chelating agent. IDS serves as the premier green alternative for modern dye houses seeking to balance superior fabric quality with stringent ecological standards.

I. Why IDS is Essential for Modern Textile Dyeing

During the various stages of textile wet processing—from scouring and bleaching to dyeing and soaping—the presence of heavy metal ions (such as Fe3+, Cu2+, and Mn2+) and alkaline earth ions (Ca2+, Mg2+) can cause catastrophic quality failures.

1. Peroxide Bleaching Stabilization

In hydrogen peroxide (H2O2) bleaching, trace amounts of iron or manganese act as catalysts, causing the rapid, uncontrolled decomposition of the peroxide. This leads to:

• "Pinholes" and localized fiber damage due to intense catalytic action.

• Reduced whiteness and uneven bleaching results.

IDS Logic: Unlike traditional stabilizers, IDS effectively complexes these transition metals even in highly alkaline environments, ensuring a controlled release of oxygen and protecting the tensile strength of the fiber.

2. Prevention of Dye Specks and Shade Inconsistency

In the dyebath, calcium and magnesium ions react with dyes to form insoluble "dye lakes," leading to:

• Poor color fastness and rubbing fastness.

• Shade deviations (dullness) in reactive and direct dyeing.

Yuanlian Chemical’s IDS acts as a powerful water softener and dispersant, ensuring that dyes remain fully soluble and penetrate the fiber evenly for vibrant, consistent results.

II. The "Green Advantage": Sustainability in the European Market

For European manufacturers, the environmental profile of a chemical is as critical as its technical performance.

• 100% Biodegradability: IDS is readily biodegradable according to OECD 301E standards. It breaks down into harmless components, significantly reducing the Chemical Oxygen Demand (COD) in textile effluent.

• Non-Toxic and Phosphorus-Free: Unlike phosphonates, IDS does not contribute to the eutrophication of water bodies, aligning with the EU Ecolabel and OEKO-TEX® requirements.

• Safety: It is non-sensitizing and safe for use in the production of garments for infants and sensitive skin.

III. Application Stages for IDS in Textile Mills

Yuanlian Chemical recommends integrating IDS into the following processes:

IV. Why Partner with Yuanlian Chemical?

As a dedicated manufacturer of amino acid-based chelating agents, Yuanlian Chemical provides more than just raw materials; we provide systemic solutions.

• Precision Engineering: Our IDS is produced with high purity, ensuring minimal secondary impurities that could interfere with sensitive dye recipes.

• Cost-Efficiency: Due to its high chelation value per gram, IDS allows for lower dosage compared to other green alternatives, optimizing your total cost of ownership.

• Technical Support: We offer laboratory testing to determine the optimal IDS dosage based on your specific water hardness and fabric type.

V. Contact and Inquiry

Elevate your textile processing to meet the global standards of sustainability. For technical data sheets (TDS), safety data sheets (SDS), or to request a sample, please contact our international service desk.

• International Hotline: +86 537-3739818

• Company: Yuanlian Chemical

• Core Products: Tetrasodium Iminodisuccinate (IDS), GLDA-Na4, PASP, and specialized textile auxiliaries.

Yuanlian Chemical: Innovative Chemistry for a Sustainable Textile Future.