Blaženka Kučinac is one of the most important product designers (produkt dizajnerica) in Croatia. In 1953, Kučinac enrolled at Škola Primijenjene Umjetnosti i Dizajna (School for Applied Arts and Design) in Zagreb, where she decided to study interior design (unutarnja arhitektura). After her graduation in 1958, she was employed at the Zagrebačka tvornica pokućstva (Zagreb Furniture Factory) where she worked as an industrial aesthetic (industrijski estetičar) for a year and a half. In 1960 she moved to Osijek and married her friend and colleague Adam Kučinac. There she started working at the Furniture Factory (Tvornica Mobilia) of Ivo Marinković. This is where many of her designs were realized. After some years she achieved the position of chief designer in this company. While working there, Kučinac graduated from the Department of Furniture Design (Odjel za Oblikovanje Namještaja) at the Faculty of Forestry (Šumarski Fakultet) in Zagreb. After almost 20 years of working in Osijek she moved back to Zagreb, where she found a job as architect consultant (arhitekt savjetnik) at the department store Šipad in Dubrava. After being back in Zagreb for two years, she got a position at a craft foundation Solidarity (obrtnička zaklada Solidarnost) as furniture designer and salon manager.

She retired in 1991 and to this day enjoys gardening.