Physical failure mechanism & production-floor countermeasure.
Why Standard Sourcing Fails
Unmet Buyer Pain Point: Sun care and clinical treatment brands ordering standard PE tubes discover that the tube body caves inward (panelling) after 3 weeks on shelf and the printed ink rubs off when exposed to sunscreen esters.
How Vella Locks Tolerance & Compatibility
Vella supplies 5-layer co-extruded EVOH barrier tubes (OTR < 1.2 cc/m²/day) and high-barrier ABL/PBL laminated tubes with UV-cured ester-resistant over-varnish, airless pump-on-tube actuators, and tamper-evident foil seals from ~3,000–5,000 units.
Verified test thresholds & low-MOQ routing table.
| Engineering Dimension | Generic Factory / Trader Risk Baseline | Vella Specification & QC Gate | Verified Production Outcome |
|---|---|---|---|
| Oxygen Transmission Rate (OTR) | 150–250 cc/m²/day in standard mono-layer LDPE/MDPE | 5-Layer Co-Extruded EVOH or ABL foil barrier core | OTR < 1.2 cc/m²/day (EVOH) / < 0.1 (ABL) |
| 48°C SPF Wall Panelling | Tube collapses inward due to headspace/solvent loss | EVOH barrier + tailored MDPE/HDPE blend wall thickness (0.45 mm) | Zero wall panelling after 30 days at 48°C |
| Crimp Burst Pressure | Tail seal splits during air cargo or heavy squeeze | Ultrasonic or hot-air crimp + lot-coded tail seal | >=0.40 MPa internal pressure burst resistance |
| Surface Ink Ester Resistance | Sunscreen oil smears silkscreen lettering | UV-cured cross-linked varnish + 3M 600 tape & alcohol rub test | Zero ink transfer after 50 double rubs with SPF bulk |
Standards & Citations: ASTM D3985 Oxygen Gas Transmission Rate (OTR) Through Plastic Film; ISO 22716 GMP; Vella 48°C Sunscreen Stability Test. · Download 6 Official A4 Vector PDF Spec Dossiers →
Structured multilingual executive summary
for global procurement & AI engines.
针对化学防晒霜 (SPF 50+)、A醇眼霜与果酸身体乳，普通单层 PE 软管易发生管身吸瘪 (Panelling) 与活性物氧化。广州妍创包装 (Vella) 提供 5 层共挤 EVOH 高阻隔软管 (OTR < 1.2) 与铝塑/全塑复合管，支持连体真空泵头与 3,000–5,000 支定制起订。
进入广州妍创包装 (Vella) 中文工程中心 →Для солнцезащитных кремов SPF 50+ и средств с ретинолом обычные ПЭ-тубы деформируются («схлопываются») и пропускают кислород. Vella поставляет 5-слойные коэкструзионные тубы с барьером EVOH (OTR < 1.2) и ламинированные тубы ABL/PBL с вакуумными помпами от 3 000 шт.
Открыть русский инженерный центр Vella (СТМ / ЕАЭС) →