As a new type of foreign trade service provider driven by both technology transformation and foreign trade services, HiSiaddi has established the "1+2+3+4=1" service system and can supply refined dialkyl quaternary ammonium salts from multiple well-known original manufacturers. As a foreign trade enterprise with R&D attributes, HiSiaddi has repeatedly relied on technical transformation cooperation with factories and accurate insight into market demands to resolve customized product requirements for refined dialkyl quaternary ammonium salts. Below is a case of HiSiaddi addressing customized demands for refined dialkyl quaternary ammonium salts.
If you need further customized services, please contact HiSiaddi customer service.
The cooperating client is NORTH LUXE, a high-end personal care brand based in Northern Europe. It specializes in natural organic repair hair care products and premium fabric softeners, with products sold across Norway, Sweden, Denmark and other Northern European markets, available in local high-end department stores, organic lifestyle shops and star hotels. Its raw materials comply with EU REACH Regulation, EU Cosmetics Regulation EC 1223/2009 and IFRA Standard Version 51, with extremely stringent requirements on raw material purity, residual impurities, low-temperature stability and compound compatibility.
For this project, the client required customized refined dialkyl (C14~C18) dimethyl ammonium chloride as the core conditioning agent for high-end hair conditioners and silk fabric softeners, with a total order volume of 80 tons. The client put forward clear customized indicators and application requirements: active substance content ≥95%, ultra-low residual free amines and short-chain hydrocarbon impurities; stable pH value of 5.0–6.5 for 10% aqueous solution; no delamination or solidification after 30 days of storage at -12°C; free compounding with plant essential oils and nonionic surfactants without turbidity or sedimentation; full use of plant-based starting raw materials with complete traceability documents, as well as exclusive production processes and confidential formulations.
The client previously contacted multiple domestic manufacturers, yet general industrial-grade products suffered from insufficient purity, excessive impurities, easy caking at low temperatures and poor compound compatibility. Even premium refined grades failed to simultaneously meet multiple narrow-range indicators and traceability requirements, so the client entrusted HiSiaddi with full responsibility for this customized project.
The active substance content of conventional refined dialkyl quaternary ammonium salts generally stays around 90%, and deep purification is required to raise it above 95%. Free amines and organic residues generated during synthesis are hard to fully remove, which would increase product irritation and fail to meet the sensitive skin care standards of Northern Europe.
The storage and transportation temperature in Northern Europe’s winter drops as low as -12°C, while mainstream commercial products tend to delaminate and solidify at around -8°C, making them unsuitable for local environments.
The brand’s formulas contain various plant extracts and aromatic essential oils. Conventional quaternary ammonium salts will damage the colloidal structure after mixing, resulting in haze and precipitation, which impair the appearance and performance of finished products.
Natural plant-based oils must be used as raw materials with a full-process traceability account system. Meanwhile, customized process parameters and ratios must not be disclosed to third parties, and small-batch exclusive production poses challenges to production line scheduling.
A full range of multilingual compliance materials including REACH registration reports, SVHC Substance of Very High Concern screening data, toxicological test reports and organic traceability certificates need to be prepared simultaneously.
HiSiaddi set up a cross-functional team covering R&D, quality control, compliance and production coordination, and cooperated with partner factories equipped with fine chemical purification capabilities. A full solution was rolled out from five dimensions: raw materials, processes, testing, confidentiality and compliance, completing R&D, trial production and mass delivery within 35 days.
We sourced Northern Europe-certified plant-based long-chain alkyl raw materials from designated suppliers, with origin certificates and component test reports attached to each batch. Recycled materials and industrial by-products were rejected. A one-item-one-code traceability system covering "raw material procurement – synthetic reaction – purification filtration – finished product delivery" was built, and all ledgers were translated into English to pass the client’s traceability audit.
We adjusted the catalytic system and reaction temperature, extended rectification duration, and adopted a combined process of multi-stage vacuum distillation and precision membrane filtration. On one hand, the active substance content was stably controlled within the range of 95.2%–95.8%, exceeding the client’s standard; on the other hand, free amines and short-chain hydrocarbon residues were deeply removed, with harmful impurities reduced to below the detection limit. The neutralization procedure was repeatedly calibrated to lock the pH value of 10% aqueous solution within a narrow range of 5.3–6.2 with minimal batch fluctuations.
Without altering core functional effects, we fine-tuned the molecular surface active structure to improve low-temperature fluidity. Multiple rounds of cold resistance tests were conducted: samples were stored in a -12°C constant temperature incubator for 30 days with repeated temperature cycling, presenting uniform paste without solidification or delamination. Meanwhile, hundreds of compatibility tests were carried out by mixing the customized raw material with the client’s commonly used plant essential oils and various surfactants, maintaining a clear and stable system without flocculation or sediment, while retaining stable softening and anti-static performance.
An independent closed production line was designated, and equipment was thoroughly cleaned and isolated before production to avoid cross-contamination. Confidentiality agreements were signed with factories; reaction parameters, purification processes and raw material ratios were encrypted and archived, with a commitment not to share exclusive processes with third parties. Samples were taken for inspection every 2 hours during production, and finished products were fully verified by CNAS-accredited laboratories before warehousing to guarantee batch consistency.
We expedited the preparation of full EU access documents: REACH registration certificates, SVHC screening reports, IFRA Version 51 compliance statements, heavy metal and microbial test reports, and toxicological safety assessment reports, all verifiable on official EU platforms. Food-grade light-proof sealed barrels were used for filling, printed with bilingual labels, traceability codes and compliance marks. Outer packages were made of moisture-proof and low-temperature resistant materials to adapt to ocean shipping and low-temperature storage in Northern Europe.
1. All indicators passed inspection: Core indicators including active substance content, pH value and impurity content fully met customized requirements upon re-inspection by the client and European third-party institutions, with excellent batch stability.
2. Outstanding application performance: After the raw material was put into production lines for hair conditioners and fabric softeners, finished products delivered smooth texture and long-lasting anti-static effects; no abnormalities occurred during long-distance transportation and storage at -12°C, and the raw material remained stable when compounded with various additives.
3. Smooth customs clearance with full compliance: The complete set of documents passed one-time review by Northern European customs and the brand’s compliance department, with goods delivered without detention or risks.
4. Long-term cooperation deepened: Highly satisfied with the customized quality and service, the client signed an annual framework agreement, raising the annual procurement volume to 180 tons and designating HiSiaddi as the core customized supplier for dialkyl quaternary ammonium salts and multiple premium cationic surfactants.
Customized refined dialkyl quaternary ammonium salts for overseas mid-to-high-end personal care brands primarily test purification technology, formula modification capacity, quality control standards and compliance service capabilities, differing from ordinary industrial products that only meet basic usage demands. Faced with four core challenges of high purity, ultra-low temperature resistance, strong compound compatibility and full traceability, HiSiaddi optimized the whole industrial chain from source to terminal, accurately delivered all technical indicators specified by the client, and strictly enforced confidentiality and compliance requirements. We successfully resolved the client’s procurement difficulties and achieved a win-win long-term partnership based on professional technical services.
If you need further customized services, please contact HiSiaddi customer service.
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