Effervescent Plastic Bottles

The technology of effervescent plastic bottles is an important innovation in the field of pharmaceutical and health product packaging, aimed at addressing the shortcomings of traditional packaging in terms of ease of use, moisture-proof sealing, and hygiene and safety. The following is a detailed analysis based on the latest patents and technologies:

I. Core Structural Design

1. Limited-Dispensing System

   • Inner Insert & Tablet Outlet: The cap features a ring-shaped inner insert with a side outlet that allows only one tablet to pass through. Limit protrusions and locking blocks ensure the outlet is precisely exposed when opened, preventing complete cap detachment or excessive spillage.

   • One-Handed Operation Optimization: For example, the FOG 27 cap adopts an intuitive safety strap design, reducing opening time from 25.8 seconds (traditional) to 9.2 seconds and lowering required pressure by 70%, making it ideal for elderly users.

2. Double-Layer Moisture-Proof Bottle

   • Outer & Inner Tube Structure: The space between the inner and outer tubes is filled with desiccants (e.g., silica gel). The reaction between the desiccant and moisture generates gas, creating positive pressure to enhance sealing. The interference fit between the inner tube and cap further blocks humidity.

   • Integrated Desiccant Chamber: A desiccant chamber (with breathable holes) is built into the cap base, or a removable desiccant holder is placed at the bottle bottom to avoid direct contact with tablets.

3. Anti-Contamination & Hygiene Features

   • Sealing Ring & Tamper-Evident Structure: Initial opening requires breaking a one-time sealing ring. Some designs include anti-theft rings (e.g., hook locks) to prevent reuse.

   • Powder Filter: A conical funnel and guide at the bottle bottom collect powder residue and prevent backflow during pouring, keeping tablets clean.

II. Key Technological Innovations

1. Materials & Manufacturing

   • Transparent Body & Waterproof Coating: The tablet storage unit uses transparent materials (e.g., PC or PET) for easy visibility of remaining tablets. The second baffle is coated with waterproof material to block moisture.

   • In-Mold Labeling (IML): For instance, Brilliance effervescent tubes employ integrated label printing for improved aesthetics and readability.

2. Multifunctional Integration

   • All-in-One Brewing Bottle: The tablet storage unit is fixed to the cap top, with a sliding baffle to control the number of tablets dropped into water for instant drinking.

   • ZIF-8-90 Specialized Bottle: Designed for adsorbent-type effervescent tablets (e.g., for testing), the moisture-proof bottle maintains material activity, while CO₂ generated during effervescence accelerates adsorbent dispersion.

III. Future Trends

1. Smart Packaging: Integration of humidity sensors or RFID tags for real-time monitoring.

2. Eco-Friendly Materials: Use of biodegradable plastics (e.g., PLA) to reduce environmental impact.

3. Customization: IML-enabled personalized designs to enhance brand recognition.