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Cranfield 3D-prints natural rubber gloves, skips the dipping line entirely

Cranfield University has built a printer, called 3D-PEP (3D printer for elastomeric products), that sprays natural rubber latex onto a mould and heats the glove from both sides at once so it vulcanises as it’s formed. The target is the dipping line: the standard glove process that runs a mould through a series of latex baths, drying each coat before the next dip.

Cranfield developed the machine with glove manufacturer Meditech. The pitch is footprint and flexibility, not speed. A dipping line needs the full run of baths and drying stages; 3D-PEP needs less floor space and, the researchers say, suits small batches better than committing to a long dip run. Eva Peláez-Álvarez, a research fellow in advanced materials at Cranfield, said the process lets a manufacturer scan a person’s hand and print a glove sized to it, something a dipping line has no reasonable way to do.

The material choice is the other half of the pitch. Natural rubber latex breaks down in roughly a year, against synthetic rubber gloves which the researchers say degrade more than 100 times slower, some requiring additives before they degrade at all. With billions of gloves made globally each year, that degradation gap is the volume argument, not the printing method itself.

What’s not published: any print time per glove, throughput compared to a dipping line, tensile or barrier-performance data against medical glove standards, unit cost, or a date for commercial deployment with Meditech. Call it what it is: a lab demonstration with an industrial partner attached, no shipping date.

Sources

bedfordtoday.co.uk via 3dprinting.com