Valerie Ziani de Ferranti was born in London to Vincent Ziani de Ferranti, a prominent electrical engineer and inventor. Growing up in an environment steeped in innovation and invention likely fostered her own creative and problem-solving abilities from a young age.

Valerie married Commander Hon. Alistair Hunter Gordon, son of Granville Gordon, 12th Marquess of Huntly, and started a family. Motherhood would soon become the catalyst for her most significant invention, arising from the practical challenges of managing infant care.

The birth of Valerie's third child presented the challenge of laundry and nappy management in her country home, which lacked reliable washing facilities. Frustrated with traditional cloth nappies and seeking a more convenient and hygienic solution, Valerie began experimenting with alternatives.

Valerie designed and created the PADDI, a two-part system featuring a disposable cellulose wadding pad wrapped in a reusable, washable net garment made from old nylon parachutes. This innovative design reduced laundry demands and offered a more hygienic option compared to traditional cloth nappies.

Unable to find a manufacturer willing to take a chance on her product, Valerie began producing PADDI nappies at home with the help of her mother-in-law. She sold them locally and at Harrods department store, where they quickly gained popularity among mothers.

The demand for PADDI nappies grew rapidly, exceeding Valerie's home production capacity. Recognizing the potential of her invention, she entered into a licensing agreement with Robinson & Sons, a major manufacturer of surgical dressings. This partnership enabled wider distribution and market penetration.

Valerie also invented Nikini, an early sanitary towel system, using a similar concept to PADDI with disposable cellulose wadding pads held in place by a reusable garment. This product addressed the need for more discreet and convenient feminine hygiene products.

Valerie lived a relatively quiet later life, enjoying her family and grandchildren. Although she didn't maintain a prominent public profile, her inventions had a profound and lasting impact on society. Her legacy includes the foundation of the modern disposable nappy industry and a significant contribution to women's personal hygiene.

Valerie Hunter Gordon passed away on October 16, 2016, at the age of 94. Her ingenuity and entrepreneurial spirit are remembered for revolutionizing childcare and feminine hygiene practices, making life easier for countless individuals and setting the stage for future innovations in the field.