IDS: Unlocking New Performance for European Detergents—Color Protection, Stain Removal, and Anti-Precipitation in One

In the European daily chemical consumer market, "cleaning thoroughly" is no longer the sole standard—German households worry about fading fabrics, French users struggle with soap scum, and Dutch families deal with hazy residue on stainless steel.

These pain points are precisely the core solutions that Tetrasodium Iminodisuccinate (IDS) brings to European detergent formulations. With its precise capabilities in "color protection, stain removal, and anti-precipitation," IDS has become a key ingredient that meets the EU's "high performance + safety and environmental protection" standards.

I. Color Preservation Technology: Preventing Fabric Fading and Oxidation

IDS equips laundry detergents with "color preservation technology," directly addressing the color protection needs of European consumers. European households prefer natural fabrics, but the dyes in cotton and wool are prone to oxidation by metal ions such as Fe3+ and Cu2+ in water, leading to dull colors.

When IDS is added to laundry detergent formulations, the carboxyl groups in its molecules act like "magnets" to precisely chelate these metal ions, preventing them from reacting chemically with dyes. Compelling test data from a high-end German brand shows that detergents containing 0.5% IDS only had a CIE LAB color difference value of 1.3 after 20 washes, compared to 4.1 in the IDS-free group. The fabric's vibrancy retained 91% of its original state, easily passing the strict "color protection performance" certification of the EU Ecolabel.

II. Hard Water Solutions: Enhancing Stain Removal and Soap Efficiency

In soap formulations, IDS solves the stain removal challenge in European hard water. Approximately 60% of European regions have hard water (Ca2+ and Mg2+ concentration >150 mg/L). Traditional soap reacts with hard water to form water-insoluble soap scum, reducing efficiency by over 30%.

The core role of IDS is to cut off the soap scum formation pathway by "shielding metal ions"—it binds to calcium and magnesium ions first, allowing the active ingredients in soap to focus on removing oil and stains. Experiments showed a 28% improvement in stain removal efficiency in hard water. More thoughtfully, IDS's neutral property (pH 7.0-7.5) complies with the skin irritation requirements of the EU's Cosmetics Regulation (EC 1223/2009), making it safe for users with sensitive skin.

III. Anti-Precipitation Magic: Spotless Cleaning for Stainless Steel Tableware

IDS also endows dishwashing detergents with "anti-precipitation magic," adapting to the stainless steel dish cleaning scenarios of European households. The white residue on stainless steel surfaces is mostly salts formed by the reaction of metal ions in water with detergents.

After IDS is added to formulations, it continuously chelates metal ions, reducing residue formation at the source. Comparative tests confirmed that products containing 0.8% IDS only had a 2.8% surface residue coverage rate, far lower than the 26% of the IDS-free group. More importantly, IDS has passed the EU's EC 1935/2004 food contact material certification, ensuring no chemical residues on washed dishes.

IV. Environmental Compliance: Meeting REACH and EU Green Deal Standards

IDS's environmental compliance is equally outstanding, securing its position in the European market. It has passed all 233 tests for Substances of Very High Concern (SVHC) under the EU REACH Regulation, containing no phosphorus or nitrogen.

It achieved a 94% degradation rate within 28 days in the OECD 301B biodegradation test, far exceeding the EU's standard for daily chemical ingredients. Today, major European daily chemical giants such as Henkel (Germany) and L'Oreal (France) have integrated IDS into their core formulations. In 2024, the procurement volume of IDS in the European daily chemical sector increased by 37% year-on-year.