How to choose halogen-free nitrile gloves? Lijiejing halogen-free nitrile gloves are the preferred choice.

Lijiejing Halogen-Free Nitrile Gloves achieve strict halogen content control through a triple closed-loop system of “source material selection control, production process precision control, and finished product accurate testing.” Specific measures include: Source Material Selection: Eliminate halogen introduction at the raw material stage by selecting low-halogen/halogen-free nitrile latex, ensuring inherent halogen content ≤150ppm. Rigorous Control of Additive Selection: All additives, including vulcanizing agents and accelerators, are selected from halogen-free, environmentally friendly types, such as halogen-free vulcanization systems. While these eco-friendly additives carry higher costs, they prevent halogen introduction at the source. Production Precision Control: Optimizing polymerization processes throughout production to minimize halogen residues. Precisely regulating temperature, pressure, and reaction duration during emulsion polymerization. Employing staged polymerization techniques to reduce halogenated hydrocarbon byproducts—though increasing energy consumption, this significantly lowers halogen content. Enhanced Washing and Purification: Post-polymerization latex undergoes a combined process of 3-5 multi-stage water washes + centrifugal separation. Deionized water thoroughly removes residual halogen monomers and additives, far exceeding the 1-2 wash standard for ordinary gloves. Low-temperature drying technology (≤90°C) or vacuum drying is employed to prevent material degradation and halogen compound formation caused by high temperatures, ensuring stable halogen values. Precise chlorine washing parameter control: Chlorine content in the washing solution is strictly limited to 350-600 ppm, with washing duration controlled at 0.3-1 minute, balancing cleaning efficacy with residual halogen risk. Precision Testing: Batch-by-Batch Compliance Release Establishes a high-precision testing system equipped with ion chromatographs, X-ray fluorescence spectrometers, and other instruments. Conducts quantitative analysis of chlorine (Cl) and bromine (Br) content in each batch, achieving detection limits at the ppm level or even ppb-level trace identification. Strict adherence to international standards ensures compliance with IEC and RoHS directives: chlorine (Cl) and bromine (Br) content below 900 ppm each, total halogen content below 1500 ppm, with select products achieving total halogen levels as low as 50 ppm or less.