Luxury Bottled Water Overcomes rPET Design Limitations

Other requirements for the bottle were that it would have a convex front panel that would allow the label, adhered to the back of the bottle with the graphics facing inwards, to be viewed through the bottle and water without any distortion, as well as a flat, ergonomic shape that would enable it to fit easily into small spaces such as crossbody bags, back pockets, and seat-back storage on trains and planes.

Although Lowers’ requirements seem straightforward, the combination of material and shape presented a challenge. While rPET offers the necessary properties to develop a transparent and recyclable bottle, the material’s strength and stiffness create considerable resistance to force, making it difficult to create a distinctive bottle shape through the traditional injection stretch blow-molding (ISBM) process.

To solve this design and manufacturing challenge, Lowers worked with Berry Agile Solutions, a new division of Berry Global that offers short lead times and low minimum order quantities. According to Berry Global Product Line Director Joe Horton, by using its global in-house material science, design, and manufacturing expertise, Berry Agile Solutions was able to successfully adapt ISBM technology to accommodate the bottle design for NEUE Water.

The flask-like bottle features a flat, ergonomic shape that enables it to fit easily into small spaces such as crossbody bags, back pockets, and seat-back storage on trains and planes.“Our technical team understands the properties of PET and PCR and designed the preform to enable this difficult shape to be properly manufactured within the ISBM process to enable correct distribution of the polymer,” says Horton. “The shape was difficult due to the stretch-blow ratio between the neck and the width of the bottle. As the bottle is relatively shallow, front to back, we had to correctly stretch and blow the bottle while also getting the right balance of magnifying effect on the front panel, which can happen when too much material freezes off on the front panels. Too much magnification would have significantly reduced the ease of reading the label, which is positioned at the back and designed to be read through the bottle. This was achieved by using high ovalization on the preform.” Ovalization occurs when the circular finish of a preform becomes slightly or moderately oval in shape due to high temperature or compressive forces.

The resulting 500-mL bottle sports a flask-like shape with an uninterrupted convex window on one side that magnifies the label area. The bottle uses Multi-Color Corp.’s RecycLABEL clear #11581 and RecycLABEL white #11582 biaxially oriented polypropylene labels, which are specifically designed to be fully removable in one piece from the hot washing solution during the PET recycling process.

Read about the popularity of bottled water in this related article, “Bottled Water Continues to Make a Splash.”

The label artwork is an intrinsic part of the premium experience, as it features different artist-designed collections that change with each fashion season. Says Lowers, “We wanted it [the bottle] to be an accessory people coveted because it looked great, as well as distinctively standing out on shelf.”

Within a week of NEUE Water’s launch in September 2022 in U.K.’s Harrods department store, the new water brand sold out and since then has continued to receive an overwhelmingly positive response. “People seem to love the functionality and the uniqueness of the designs,” says Lowers. “Customers tell us they don’t like to throw the bottles out and end up using them for months, which is great to hear. As you will see on the labels, we actually encourage customers to reuse the bottles before recycling, which is another first.”  PW