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WE ARE PULPEX
About Pulpex Technology
Find answers to common questions about Pulpex fibre bottles, including recyclability, materials, shelf life, product compatibility, decoration, filling lines and sustainability benefits.
Frequently Asked Questions
About PulpexSourcing & Raw MaterialsBottle Properties Bottle DecorationManufacturing ProcessEnd of Life CircularityFilling Lines & OperationsProduct Quality & ComplianceMarket Availability
Can Pulpex bottles be used on existing filling lines?
Yes. Pulpex bottles are designed to integrate into existing rigid packaging filling infrastructure. They are intended to be interchangeable with other rigid packaging formats, subject to line testing and validation.
Which filling styles are compatible with Pulpex bottles?
Pulpex bottles are compatible with a range of filling styles, including gravity, pressure, vacuum or low-vacuum, volumetric and overflow filling systems. Hot-fill and aseptic applications may be possible but should always be validated through product and line trials.
Can Pulpex bottles be used with existing labelling equipment?
Yes. Pulpex bottles can be labelled on existing standard equipment. Pulpex can also provide preferred adhesive and paper label stock recommendations to a brand’s chosen label print partner.
Can Pulpex bottles go through temperature pasteurisation?
Yes, although there are limits. Pulpex bottles should not currently be put through a retort process.
Can Pulpex bottles go through chemical washing?
Yes, but compatibility should always be checked through pre-testing on the specific filling line.
Can Pulpex bottles be used with automated pallet unloaders?
Yes. Pulpex has not experienced issues in trials, although manual layer pad removal may be required depending on the level of automation.
What filling line speeds are Pulpex bottles compatible with?
There is no specific fixed line-speed limit for Pulpex bottles. They are designed to run as an interchangeable rigid packaging format. In some cases, depending on the customer’s line, thread adapter customisation may be required.
Other FAQ's
Why do we need a paper bottle? Glass is great, and recyclable too.
At Pulpex, we believe consumers should decide what type of bottle they prefer to use. Glass bottles are created using a lot of energy (which can create CO2 emissions) and recycling glass also takes a lot of energy. Many glass bottles are not recycled, especially in geographies with poor recycling infrastructure. Glass bottles that aren't recycled can last hundreds of years in the natural environment and if broken can create a safety hazard to humans and animals.
What are the technical specifications?
Technical specifications for three of our typical bottle shapes can be found here. When bottle manufacturers begin to roll-out the technology, information packs on how to work with Pulpex for your packaging design will be more broadly available.
Are you hiring?
We are always looking for great talent to join us on our journey to create the future of sustainable packaging. Any open roles are posted on our LinkedIn page.
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