Packaging Dieline, Barrier Lamination & Print Tolerances
This technical specification establishes the mandatory engineering standards for contract packaging of Waterless Hair Cleansing Wipes (14ml Full-Scalp Heavy-Duty Towel) and Bangs Sebum Pocket Wipes (3.5ml Sachet) produced by Guangzhou Yanse Cosmetics Co., Ltd. (YANSE COS). Adherence to this specification guarantees 36 months of hermetic barrier preservation without volatile solvent dry-out.
1. Standard Dieline Architecture & Bleed Allowances
All foil sachets are manufactured on high-speed continuous multi-lane form-fill-seal (FFS) lines in an ISO 22716 Class 100,000 cleanroom. Both 3-side seal and 4-side seal configurations feature tear notches placed 10–15mm below the top seal edge.
2. Multi-Layer High-Barrier Foil Laminate Specification
Because the cleansing formulation contains fast-evaporating volatile carriers, generic single-layer or metallized plastic (VMPET) films will suffer micro-porous solvent vapor transmission, resulting in dry wipes after 6–9 months. Yanse enforces a Pure Aluminum Foil Barrier (AL) structure:
| Layer Position | Material Substrate | Caliper / Thickness | Primary Engineering Function |
|---|---|---|---|
| Outer Layer (Print Surface) | Matte Biaxially Oriented PET (BOPET) | 12 μm | Reverse gravure printing surface; scratch-resistant matte tactile finish. |
| Barrier Layer (Gas/Vapor Barrier) | Soft Annealed Pure Aluminum Foil (AL) | 7 μm | Zero Pin-Hole Gas Barrier: Water Vapor Transmission Rate (WVTR) < 0.05 g/m²·24h; Oxygen Transmission Rate (OTR) < 0.05 cc/m²·24h. |
| Inner Layer (Hermetic Seal) | Linear Low-Density Polyethylene (LLDPE) | 50–60 μm | Low-temperature high-integrity thermal sealing; inert chemical compatibility with cleansing emulsion. |
3. Brand Color Palette & Printing Cylinders
* Printing Process: High-precision electronic cylinder rotogravure printing (up to 10 colors). Food/cosmetic grade odorless solvent-free dry lamination.
4. Regulatory Labeling & Export Compliance
- US FDA MoCRA Compliance: Every production batch bears factory identification, full INCI ingredient disclosure, adverse event contact portal, and PAO 12M symbol.
- Non-Dangerous Goods Export Appraisal: Officially certified under IATA DGR Special Provision A46/A158. Exempt from UN1950 Class 2.1 Flammable Gas hazardous shipping documentation.
- Cleanroom Bioburden Control: Formulated and sealed under ISO 14644-1 Class 100,000 cleanroom environments. Total viable aerobic count guaranteed <10 CFU/g.