Tailored Paper Tube Packaging with Custom Insert for Electronic Vacuum Flasks: A Success Story from Russia
1. Client Background & Challenge
We were approached by a Russian client looking for high-end, functional packaging for their electronic vacuum flasks. The client had two primary requirements that standard packaging couldn’t meet:
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Complex Structure: The packaging needed a custom internal insert (insert tray) to securely hold electronic accessories.
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User Experience: It had to be designed for “easy-to-take,” ensuring customers could retrieve the flask and accessories effortlessly without damaging the paper tube.
To ensure a perfect fit, the client’s representative in China sent us the actual product samples for precise measurement and structural design.

A physical white sample designed for a Russian client, featuring a custom-engineered insert to securely hold an electronic vacuum flask and its components.
2. Our Solution
At Hopak Packaging, we believe that structural integrity is just as important as aesthetic appeal. Our engineering team developed a multi-step plan:
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Innovative Insert Design: We designed a sturdy, eco-friendly paper-based internal structure that partitioned the space for both the flask and its electronic components.
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Human-Centric Design: We optimized the tube’s diameter and the insert’s friction level to ensure the product stays secure during shipping but remains easy for the end-user to pull out.
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Prototyping: Before mass production, we created a physical sample. This allowed the client to test the actual fit, the “easy-to-take” functionality, and the overall hand-feel of the packaging.

3. The Result
The client was highly impressed with the precision of our sample and the thoughtfulness of our design.
“The structural design perfectly balances protection and convenience,” the client noted.
Based on the successful prototype, the client confirmed the final dimensions and placed a bulk order immediately. This project showcases Hopak Packaging’s ability to handle complex custom tube packaging needs for the international electronics market.

4. Technical Specifications
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Product Type: Cylinder Paper Tube with Custom Insert
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Application: Electronic Vacuum Flask / Smart Drinkware
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Key Features: Easy-pull structure, custom accessory compartment, 100% recyclable material.
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Service: Structural Design + Prototyping + Mass Production

Check our electronic packaging to find more tube solutions.