As a new-type foreign trade service provider driven by both technological transformation and export business, HiSiaddi has established a "1+2+3+4=1" service system and can supply erucylamide sourced from multiple well-known original manufacturers.
Possessing R&D capabilities, HiSiaddi has repeatedly proposed erucylamide formula optimization plans and application improvement suggestions through technical cooperation with factories and accurate market insight. Below is a case of HiSiaddi’s consulting service for erucylamide formula optimization.
For more formula optimization consulting services, please contact HiSiaddi customer service.
SwissPack, a leading European mid-to-high-end new material enterprise headquartered in Zurich, Switzerland, focuses on three core segments: premium food flexible packaging, medical TPE hoses, and eco-friendly soybean gravure inks. Its downstream clients include high-end snack independent packaging lines of Nestlé, single-use medical consumables of major European pharmaceutical companies, and local eco-printing chains in Switzerland. Holding dual strict production qualifications for EU food contact and medical materials, the company has stably purchased high-purity erucylamide from Croda (Netherlands) for 18 years, with rigid annual demand of 225 tons split into three grades: 110 tons for CPP high-transparency food films, 75 tons for medical TPE modification, and 40 tons for eco-friendly soybean inks.
Affected by surging European chemical raw material prices and extended ocean logistics lead times, SwissPack partnered with HiSiaddi in late 2025 to launch a domestic substitution trial order of 45 tons of refined erucylamide. The client intended to match the physical, chemical and application performance of imported Croda products to cut raw material costs by 28%. However, after goods arrived at the warehouse and ran on three production lines for three weeks, three distinct production failures emerged sequentially: white bloom precipitation on CPP film surfaces, oil seepage on inner walls of medical TPE hoses, and roller sticking & screen clogging during soybean gravure ink printing. Product yield plummeted sharply across all three lines: CPP film yield dropped from 97.2% to 76.5%, defective rate of medical tubes surged to 21.3%, and daily ink equipment overhaul frequency reached six times. The client’s R&D and production departments immediately suspended all subsequent production schedules and issued an official notice to HiSiaddi: if raw material and formula technical optimization failed to completely resolve mass production failures within 40 days, the entire 45-ton batch would be returned and all Chinese supply chain cooperation permanently terminated.
The client’s product access standards comply with EU Regulation 10/2011 on food contact materials, ISO 10993 medical biosafety standards, and RoHS 2.0 environmental control. Unlike low-end bulk buyers focused solely on unit price, raw material performance directly determines the market access qualification of end consumer brands, leaving near-zero margin for error. Although physical and chemical data on the factory’s COA reports for domestic erucylamide all met national GB standards, application failures occurred after blending into the client’s downstream formulas. The supplying factory could only provide basic physical and chemical test data without capacity for downstream formula debugging and process optimization, making it impossible to locate root causes. HiSiaddi’s technical team was fully entrusted to deliver all technical troubleshooting work.
HiSiaddi assembled a dedicated technical team consisting of fine chemical engineers, rubber & plastic formula researchers, and ink application technicians, who sampled on-site at the client’s Swiss production plant and conducted full analytical testing together with domestic CNAS third-party laboratories to identify root causes of the three failures, concentrated in three dimensions: inherent indicator defects of erucylamide, imbalance of the client’s original formula compatibility, and mismatched terminal production process parameters.
Client’s original CPP film formula: 78% homopolymer PP + 19.7% LLDPE + 0.22% domestic erucylamide + 2.08% silica anti-block masterbatch, extruded via cast film at 230°C. After 15 days of ambient storage, large areas of white powdery bloom precipitated on film surfaces, reducing optical transmittance by 6.8%. The friction coefficient of fresh film reached the internal standard of 0.15, but jumped to 0.37 after 30 days of storage, causing interlayer film adhesion and jamming. Subsequent dry lamination peel strength was only 0.28N/15mm, far below the EU packaging mandatory standard of ≥1.0N/15mm, failing to meet Nestlé food packaging factory standards.
Root Cause Testing Results: ① Free erucic acid content of domestic erucylamide reached 0.31% (Croda imported ≤0.06%), with small-molecule free acid accelerating irregular migration of additives; ② Mixed carbon-chain fatty acid impurities accounted for 0.47%, with particle size distribution spanning 0.1–1.2mm. Uneven particle sizes led to divergent migration rates: small particles precipitated rapidly in the short term to form white bloom, while large particles continuously leached over time depleting effective slip additives and pushing friction coefficients upward; ③ The client retained the same erucylamide dosage used for imported Croda products, yet domestic grades exhibit higher migration activity, leading to excessive precipitation at identical addition ratios. Antagonistic adsorption occurred with silica anti-block agents, disrupting interfacial film adhesion – precipitated amides isolated composite adhesives, drastically attenuating peel strength.
TPE formula: 62% SEBS substrate + 25% PP + 11.5% white oil + 0.3% erucylamide + 1.2% antioxidant, extruded and injection molded into infusion tubes via twin-screw extruder at 195°C. A thin oil film formed on inner tube walls after 7 days of ambient storage, and oil-covered areas expanded after 121°C high-pressure sterilization, failing ISO 10993 extractable testing and posing risks of liquid medicine contamination, rendering the entire batch of tubes nearly scrapped.
Root Cause: Domestic erucylamide contained 128ppm trace low-boiling auxiliary residues (Croda imported <30ppm). Low-boiling components continuously migrated and precipitated from the substrate upon heating during TPE extrusion and sterilization. Meanwhile, poor polarity matching between domestic amides and SEBS reduced compatibility further under white oil swelling, driving small-molecule components to continuously leach to product surfaces. The client retained the original temperature settings calibrated for imported raw materials, with barrel mid-section temperature 5°C higher than optimal, exacerbating thermal precipitation of additives.
Soybean ink base formula: 48% modified soybean resin + 22% mineral oil + 25% organic pigment + 3.8% erucylamide + 1.2% dispersing agent, running on 8,000r/h high-speed gravure printing presses. After 30 minutes of operation, white waxy deposits adhered to rubber rollers, forming dense white specks and pinholes on printed products, requiring equipment cleaning every two hours and cutting production efficiency by 45%.
Technical Root Cause: Domestic erucylamide featured a broad melting range of 77–82°C. During ink grinding, partial particles failed to fully melt and disperse, blocking gravure screen cells. Free fatty acids underwent weak acid crosslinking reactions with soybean resin to form insoluble flocs generating printing white specks. The client’s ink formula grinding speed and holding temperature were calibrated for imported narrow melting range grades, lacking process adaptability for domestic raw materials.
HiSiaddi adopted a three-pronged optimization scheme: targeted fine-tuning of raw material indicators, reformulation with compound auxiliary systems, and customized terminal production process adjustment. All three product failures were fully eliminated within 36 days after lab and pilot testing. Detailed implementation measures are as follows:
HiSiaddi coordinated partner manufacturers to optimize refining processes separately for the three grades:
1. Film-Grade Amide: Add secondary molecular distillation and low-temperature ethanol recrystallization processes to reduce free erucic acid from 0.31% to 0.052%, removing mixed carbon-chain acids down to 0.11%. Granulation and screening locked particle sizes within a narrow 0.3–0.5mm range to unify crystal morphology and balance long-term migration rates.
2. Medical TPE-Grade Amide: Add negative pressure devolatilization section (1.2MPa negative pressure, constant 115°C) to remove low-boiling residues down to 26ppm, while adjusting catalytic systems to boost compatibility with SEBS substrates.
3. Ink-Grade Amide: Optimize ammonolysis reaction temperature control to narrow the melting range to 79–80°C, removing abnormal high/low melting point fractions to guarantee full melting and dispersion during grinding. Each batch of optimized products was pre-tested at domestic laboratories, with parallel samples sent to the client’s Swiss laboratory for data comparison against original Croda samples. Mass trial production only commenced after physical and chemical indicator compliance was confirmed.
HiSiaddi’s formula engineers revised each of the client’s original formulas based on measured sample data, abandoning the practice of directly retaining dosage ratios developed for imported raw materials:
1. CPP Film Formula Optimization: Reduce erucylamide dosage from 0.22% to 0.13%, compound with 0.1% modified monoglyceride to form a balanced slip system that lowers peak migration of single amides. Fine-tune silica anti-block masterbatch ratio to 2.15% to mitigate antagonistic adsorption of additives. The compound system stabilizes initial friction coefficient at 0.15–0.17 while inhibiting excessive long-term bloom precipitation, balancing slip performance and composite peel strength.
2. Medical TPE Formula Optimization: Cut erucylamide dosage to 0.21%, replace standard antioxidants with hindered phenol composite antioxidants, and add 0.08% polyethylene wax as a compatibility buffer agent to bind free small-molecule components and suppress oil precipitation under high-temperature sterilization.
3. Soybean Ink Formula Optimization: Reduce erucylamide dosage to 3.1%, add 0.35% lecithin dispersing agent to improve wetting and dispersion of amides in soybean resin, eliminating screen clogging and white speck root causes at the formula level.
HiSiaddi collaborated with the client’s workshop engineers to redefine temperature control, rotational speed, and cooling parameters for all three production lines to fit domestic raw material properties:
1. CPP Cast Film Line: Lower overall extruder barrel temperature by 4–6°C, adjust die head temperature from 230°C to 224°C, and implement gradient staged cooling of traction rollers to slow film crystallization rates and avoid concentrated short-term precipitation of amides.
2. TPE Extrusion Line: Reduce barrel mid-section temperature from 195°C to 190°C, cut screw speed by 8%, and extend static mixing sections at the extruder head to improve uniform dispersion of amides within the substrate.
3. Gravure Ink Production Line: Raise sand mill grinding speed from 2800r/min to 3400r/min, pre-stir ink at constant 45°C for 30 minutes before printing to guarantee full melting and dispersion of amides, eliminating screen clogging from unmelted particles.
After five rounds of lab trials and two pilot test batches, the client launched mass production with optimized raw materials, formulas, and processes:
1. CPP films showed no white bloom precipitation after 60 days of ambient storage, with stable transmittance meeting factory standards and friction coefficient maintained at 0.16–0.19 after 30 days. Composite peel strength reached 1.18N/15mm, complying with Nestlé food packaging regulatory requirements.
2. Medical TPE tubes passed dual ambient and sterilization oil precipitation testing, with zero inner wall oil seepage and compliance with ISO 10993 medical extractable testing, reducing tube defective rates to 0.25%.
3. Soybean inks ran continuously for 24 hours at high speed without roller sticking or screen clogging, with zero white specks or pinholes on printed products and daily equipment overhaul frequency reduced to zero.
The client’s quality control department confirmed that optimized domestic refined erucylamide delivered application performance matching imported Croda grades, immediately approving use of the existing 45-ton inventory batch under revised optimized production protocols.
SwissPack formally eliminated fixed annual procurement volumes from Croda and signed a 225-ton annual framework procurement agreement with HiSiaddi. HiSiaddi established an exclusive technical service mechanism for the Swiss mid-to-high-end client: pre-delivery sample shipment with supporting reference dosage ratios and process guidance documents attached to each raw material batch. HiSiaddi’s technical team provides free formula debugging support during iterative development of the client’s new downstream products, securing long-term cooperation via bundled professional technical services. Post-domestication, the client’s annual raw material procurement costs fell by 27.5%, with lead time shortened from 68 days to 31 days, greatly optimizing the enterprise’s global supply chain cost structure.
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Common Industry Technical Pain Points Domestic erucylamide manufacturers use national GB physical and chemical indicators as factory release standards, only monitoring core metrics including amide content, acid value, and color value, lacking R&D capacity to reverse-engineer product optimization based on downstream film, TPE, and ink end-use scenarios. Domestic suppliers only deliver finished products without supporting formula optimization and production process calibration technical services. Physical and chemical compliance does not guarantee application compatibility – the most common hidden hazard when exporting domestic amides to mid-to-high-end EU clients. European mid-to-high-end clients have long used top international brands, with formulas and production lines fully calibrated for imported raw materials. Direct retention of original parameters after switching to domestic raw materials easily triggers application failures, and single manufacturers cannot deliver full-chain technical optimization support.
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Differentiated Technical Demands of Mid-to-High-End Clients Mid-to-high-end European end enterprises represented by SwissPack serve high-threshold food and medical sectors, requiring not only physically qualified raw materials but also full compatibility with their proprietary formulas, production equipment, and finished products. Any application failure may trigger end-brand qualification loss and order compensation, creating demand for bundled formula debugging and process optimization technical support alongside raw material procurement – a core requirement absent among low-volume bulk purchasers.
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HiSiaddi’s Core Technical Value as a Foreign Trade Service Provider Breaking away from the pure commodity trading logic of general intermediaries, HiSiaddi leverages upstream production resources and downstream rubber, plastic & ink application technical reserves to act as a technical bridge between raw material manufacturers and overseas end clients. The team delivers closed-loop solutions for application failures across three dimensions: molecular indicator improvement of raw materials, formula compatibility adjustment, and on-site production process optimization, compensating for domestic manufacturers’ gaps in end-use application technology while enabling mid-to-high-end overseas clients to smoothly substitute imported raw materials with domestic alternatives. Irreplaceable supply chain value is built via comprehensive professional technical services.
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For more formula optimization consulting services, please contact HiSiaddi customer service.
+86-13120989737 
info@hisiaddi.com 
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