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When hand-colouring with dyes, a weak solution of dye in water is preferred, and colours are often built up with repeated washes rather than being applied all at once. The approach is to stain or dye the print rather than to paint it, as too much paint will obscure photographic details. Blotting paper is used to control the amount of dye on the ...
Insects and pests can destroy woodblock prints by eating through the paper or leaving droppings that stain the paper. A common cause of holes in Japanese woodblock prints is the deathwatch beetle (Xestobium rufovillosum). These beetles were commonly found in wood used to build furniture in the Edo period. Woodblock prints that were stored on ...
Basic dyes are also used in the coloration of paper. Direct or substantive dyeing is normally carried out in a neutral or slightly alkaline dye bath, at or near boiling point, with the addition of either sodium chloride (NaCl) or sodium sulfate (Na 2 SO 4) or sodium carbonate (Na 2 CO 3). Direct dyes are used on cotton, paper, leather, wool ...
Natural dyes are dyes or colorants derived from plants, invertebrates, or minerals. The majority of natural dyes are vegetable dyes from plant sources—roots, berries, bark, leaves, and wood—and other biological sources such as fungi. [1] Archaeologists have found evidence of textile dyeing dating back to the Neolithic period.
The five common chemical agents that damage wood are: Light – Creates a chemical reaction within the cell walls of wood, leading to a change in color or texture; Acids – Cause wood to become brittle. Alkalies – Cause the fibers of the wood to separate and break down. Salts – Similar to alkalies, salts break down the fibers of wood.
The beginnings of modern wood engraving techniques developed in the late 17th century, by which time publishers of quality books only used the relief printing of wood blocks for small images in the text such as initials, taking advantage of relief printing blocks to be fitted into the same forme or set-up page as the letterpress type of the text.