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March 05, 2015 01:00 AM

LiquiForm looks to fundamentally change blow molding process for bottles

Jim Johnson
Senior Reporter
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    Jim Johnson
    O'Hara

    ATLANTA — Those in the know are lifting the veil, just a bit, on fledgling technology being developed that would fundamentally change the way plastic bottles are formed and filled.

    Dubbed LiquiForm, the concept was revealed last summer, but now the principals are providing more detail about the idea to take the blow out of the blow molding process.

    The idea, said LiquiForm President Ann O'Hara, is easy enough to understand. Use liquid, instead of air, to form and fill a bottle in one step.

    “The technology itself is a great leap forward,” she said.

    But replacing the time-honored approach of forming containers with air and then shipping them off to be filled on bottling lines is both a technological challenge and a significant departure from the norm.

    “This is a major step change, and quite a simple idea,” she said recently at the Packaging Conference in Atlanta.

    Confidentiality still cloaks much of the work being done in the name of LiquiForm, but partners in the project figured now is the time to provide some more details beyond the original announcement months ago. And get some useful feedback.

    That announcement was driven by the need for public disclosure of a joint venture between packaging company Amcor Ltd. and machinery maker Sidel Inc. that was formed to pursue the LiquiForm concept.

    “I think in our industry, it is time for a change,” said Luc Desoutter, sustainability officer for Sidel. “This is a brand new paradigm that we are opening with this LiquiForm technology.”

    LiquiForm leaders said they would talk about the project on a limited basis in both the United States and in Europe, and they chose the Packaging Conference for their U.S. discussion. In other words, they said, don't expect to hear much more talk of the project as it evolves over time.

    “This is still a confidential project,” O'Hara said. “Likewise, I'll be honest about this, there are some things we just don't know yet because it's still in the research phase.”

    LiquiForm is looking to develop and then license the technology to other companies for widespread implementation. O'Hara expects LiquiForm to be commercialized during the next two to three years, but there's still plenty of work to get to that point.

    “It's hard to tell with such technology like this. We could foresee in the next couple of years the first application and then an S curve of adoption. And how long that S curve is remains to be seen,” she said.

    Following introduction of the idea last summer, the folks at LiquiForm have heard many different ideas that they did not even anticipate for the technology.

    “What we heard from people who are not part of the project, they have come to us with various different applications that we didn't foresee,” she said.

    LiquiForm

    LiquifForm's process would use liquid to blow mold a PET preform.

    Core benefits to the LiquiForm approach are both the reduction of energy and waste vs. traditional filling.

    Energy required through LiquiForm could be as little as 1/15th needed compared with a process that uses air to blow mold containers, which are then shipped off to be filled at a different location.

    Tod Eberle, vice president at Amcor Rigid Plastics, pointed to the elimination of air compressors to form bottles as a key component of LiquiForm's appeal.

    “They require a lot energy,” he said. “We know, we have a lot of them. We know how to run them efficiently. We know that they are our biggest cost in the container blow molding process together with the freight associated with delivering bottles just in time to customers around the world.”

    LiquiForm, instead, combines the bottle forming and filling processes into one step by pressurizing the consumable content of the bottles.

    But this is a fundamental change to the current business model, one that will have both machinery makers and bottling companies re-examining how they want to do business.

    “With liquid forming, they have to happen at the same location. So it's also a challenge to brand owners because they become container makers if they are doing it on their own sites,” O'Hara said. “It is a challenge for container makers because now those containers ... are being made with liquid.

    “So this is quite a challenging change. All the players are being affected, not the least is the air compressor companies,” O'Hara said.

    “It does change the way roles are played,” she said. “It does challenge people.”

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