Writing in its international patent, P&G said the grooming device integrated a series of light-sensitive proximity sensors and force-sensitive resistors that analysed the contact time, speed and brushing force during use. The device then compiled and filtered this data to communicate to the user, providing usage instructions via the device itself or through a separate connected mobile device. P&G said the invention could be designed as a bristled hairbrush or toothed comb.
“In practice, the hair grooming device (…) alone or in combination with the apparatus [external processor] can be utilised to collect and filter data during a hair grooming event involving a person’s hair,” P&G wrote in the patent filing.
Importantly, it said the data could be processed and analysed to indicate the “condition of a person’s hair during a hair grooming event”.
Integrated or external communication interface
From this data, the smart device could then “provide executable instructions” either via an integrated “communication interface” or via an external processor/device that was connected via USB cable, WiFi or Bluetooth, the company said.
In the patent, P&G demonstrated the use of the device in comparing a grooming occasion with leave-on conditioner and without. Findings showed that when brushing with a leave-on conditioner in the hair, “less gripping pressure was required” making for “easier brushing”.
“This comparison can be indicative of the effect or difference of the use of the conditioner after shampooing versus the non-use of conditioner after shampooing on then characteristics of a person’s hair,” it wrote.
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Procter & Gamble patents smart hair grooming device that measures condition during brushing - CosmeticsDesign-Europe.com
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