HSL Coated Aluminium Foil for Pharmaceutical Packaging

As technicians at Haomei Aluminum specializing in pharmaceutical aluminum foil exports, we understand that HSL coated aluminum foil, with its precise performance adaptability, has become a core material for pharmaceutical blister packaging of oral solid dosage forms and inhalers. Its core value stems from its scientific layered structure, stringent specification control, and iteratively optimized production technology.

HSL coated aluminum foil for pharmaceutical packaging employs a “substrate-functional coating” composite system, far exceeding a simple coating process. Each structural layer works synergistically to ensure performance:

– Substrate Selection and Treatment:

8011 grade aluminum alloy is preferred, formed through multiple rolling and annealing processes, with a thickness precisely controlled at 0.02mm. Thorough removal of rolling oil residue ensures coating adhesion from the source.

– Dual-sided functional coating design:

The inner layer is an HSL heat-sealing layer, using a vinyl resin system, which can precisely adapt to the heat-sealing requirements of mainstream blister materials such as فيلم PVC and PVDC film; the outer layer is layered with a primer, printing layer, and acrylic-amino resin protective layer in sequence, forming a complete protective chain, ensuring both printing stability and anti-fouling capabilities.

Specification control must simultaneously meet international standards, which is a core prerequisite for exported products. We implement the requirements of USP<662> standards, controlling the thickness tolerance within ±0.001mm and the heat-sealing strength ≥1.5N/15mm, ensuring the sealing reliability of high-speed blister production lines. For markets such as the EU and North America, we have further strengthened the testing of extractable elements and residual solvents, with total residual solvents below 5mg/m², and heavy metal leaching meeting FDA 21 CFR 175.300 المعايير. Each batch of رقائق الألومنيوم الصيدلانية products is accompanied by a traceable test report.

Core technologies of HSL coated aluminium foil for pharmaceutical packaging focus on closed-loop control of the entire process, balancing stability and innovation:

– Substrate pretreatment process:

Precise control of roll roughness and rolling oil viscosity during the rolling stage ensures a substrate surface roughness Ra≤0.2μm, providing a high-quality surface foundation for subsequent corona treatment and improving coating adhesion.

– Precise coating and drying:

Utilizing imported Italian roller coating equipment, the HSL coating thickness is precisely controlled at 3-5μm, with a stable drying temperature gradient of 80-120℃, effectively avoiding common defects such as coating bubbles and pinholes.

– Environmentally friendly process innovation:

Employing a solvent-free coating process completely eliminates the residual risks of traditional solvent-based processes while achieving zero VOC emissions, meeting the increasingly stringent environmental requirements of overseas pharmaceutical companies.

Based on export practical scenarios, the HSL coated aluminium foil’s practical advantages are concentrated in three dimensions:

– Superior barrier performance:

Nearly zero oxygen permeability and 30% higher moisture resistance than ordinary coated aluminum foil, effectively ensuring the stability of drug components within its shelf life.

– Highly Efficient Production Adaptability:

A wide heat-sealing temperature window of 120-160℃, compatible with high-speed blister pack machines operating at 600 meters per minute, significantly reducing customer production and setup costs.

– Comprehensive Adaptability:

Manufactured in a GMP-compliant system and a 100,000-level cleanroom, our products are stably supplied to pharmaceutical companies in Europe, America, and Southeast Asia. They are compatible with multiple dosage forms, بما في ذلك الأجهزة اللوحية, كبسولات, and dry powder inhalers, and can withstand high-temperature and high-humidity sea transport environments with consistently stable performance.

Haomei Aluminum adheres to the principles of “process traceability and performance quantification.” Through optimization of the entire technology chain—from substrates and coatings to testing—HSL رقائق الألومنيوم المطلية للتغليف الصيدلانية meets both pharmaceutical safety standards and compliance and production requirements in overseas markets, providing highly reliable packaging solutions for global pharmaceutical companies.