Glass surface delamination, which leads to the detachment of microscopic glass fragments known as “flakes,” has long been a chronic quality concern for the food and pharmaceutical industries. To resolve this critical issue, Dongwon Systems is maximizing the chemical stability of its glass containers by implementing advanced dealkalization treatment processes, setting a new benchmark for packaging reliability.
■ Setting the Standard for Pharma Vials: Ammonium Sulfate Treatment
For glass bottles requiring high-purity stability—such as injectables and semiconductor reagents—Dongwon Systems applies a specialized Ammonium Sulfate treatment.
This process involves introducing ammonium sulfate into the glass container at room temperature, followed by heating it above 500°C. This thermal reaction successfully extracts alkaline components (such as sodium and calcium) from the inner glass surface. Following the treatment, the resulting by-product powder deposited on the surface is thoroughly eliminated through a rigorous water-washing process.
■ Transparency and Safety: Innovative DCS Treatment
Another core innovation deployed by Dongwon Systems is the DCS (Dealkalization Control System) treatment. This high-difficulty 공법 injects DFE GAS (Freon 152a) directly into the hot glass containers (maintained at 400–500°C) during the forming stage, instantaneously vaporizing surface alkali. This method offers distinct operational advantages:
Pristine Transparency: It leaves absolutely no residue or cosmetic trace on the glass surface, allowing for seamless automated visual inspections and a premium aesthetic finish.
Eco and Worker-Friendly: The process utilizes an odorless, FDA-approved substance that does not deplete the ozone layer.
Long-Term Storage Stability: Dongwon Systems’ long-term stress tests proved that even after 200 days, alkali leaching from treated bottles remains near zero, demonstrating unparalleled anti-flaking performance.
■ Elevating Quality Standards in the Global Packaging Market
Glass flaking poses severe risks, from altering the taste of contents to triggering massive corporate product recalls. Despite the high process complexity and potential equipment corrosion hazards, Dongwon Systems successfully minimized flaking rates by optimizing nozzle configurations and refining its engineering parameters.
“Our mission goes beyond simply manufacturing containers; it is about flawlessly preserving the value and safety of the contents inside,” stated a representative from Dongwon Systems. “Moving forward, we will continue to strengthen our global quality safety net through our proprietary dealkalization technologies.”