The Environment Agency has started an investigation after a report of blue discolouration of ... found the issue was being caused by wash water containing ink used at commercial premises in ...

and ink wash painting, the dial features an intricately assembled two-part structure and latticework that allows light to reach the solar panels beneath. Treated with a deep blue vapor deposition ...

while a ao-zumi deep navy-blue dial echoes Japanese ink-wash painting and calligraphy. The tiny openings in the dial pattern ...