What is Flow Blue?
Flow Blue is highly collectible, antique blue-and-white china. The vintage dishware was most popular during the Victorian era and has experienced several surges of renewed popularity in the past 45 years.
Flow Blue is a type of antique china called transferware. The production of this attractive dishware produces a gentle, hazy quality in the design that was originally a mistake. The brilliant white background contrasts with the beautiful cobalt blue color of the decoration.
How Flow Blue Was Invented and Produced
In the late 18th century, Chinese porcelain was an extremely sought-after product in England. The rich blue patterns, hand-painted on a bright white background, were very expensive and limited to the wealthier class.
It took over 100 years for English potters to duplicate the salt-glazed earthenware that created the brilliant white background, along with the application of cobalt oxide that made the Oriental blue patterns so attractive.
In the late 1700s, English potters created a technique for imprinting a design on china called transferware:
A copper plate is engraved with a design and heated.
Cobalt oxide is applied onto the engraved copper plate.
Damp tissue paper is then applied to the engraved copper plate.
The tissue is lifted off the copper plate and then applied onto the pottery.
The pottery piece is placed in water so that the tissue paper floats off.
There is some contention about the exact origin of Flow Blue. Some sources claim that the coloring agent diffused by accident, allowing the cobalt oxide to slightly bleed outside of the lines of the design. Other sources say that the diffusion was intentional in order to soften the edges of the pattern. Perhaps it was an accident at first, with the result being so pretty that the practice became more common.
Evolution of Patterns
The introduction of transfer ware to the china industry created a product that was less expensive than imported, hand-painted Chinese porcelain. The affordable product was very attractive to the surging Victorian middle class.
At first, transfer ware Flow Blue patterns incorporated Oriental designs and motifs, including temples, pagodas, and Asian scenery. Later, the Victorian romantic sensibility created a market for floral and pastoral patterns that highlighted English culture.