Bleaching and drawing

Although bleaching is not a process associated with chipboard or mechanical wood production, it is a prime factor in the creation of the super white paper pages of sketchbooks and computer paper.  The wood pulp is bleached to whiten the fibres in the paper.  Bleaching is also the first part of the process of tinting analogue photos.  The bleach breaks down the emulsions and removes the silver nitrates.  This turned out to be a bit of an all or nothing process……too little bleach and nothing happened (except a sort of roughing of the top surface).  Thick domestic bleach created a sizzling reaction….

Bleach onto exposed and developed photo paper - looking for a smoke effect.
Bleach onto exposed and developed photo paper – looking for a smoke effect.
Blog15th nov007
Bleached photo after cleaning – traces of image left, but much destroyed.

The destructive results allowed for the possibility of drawing back on top with bleach (hard to control), watercolour, ink, rotring pen and anything to hand.

ink, tipex, gelpen, on bleached black and white photo
ink, tipex, gelpen, on bleached black and white photo
ink and pen on bleached black and white photo
ink and pen on bleached black and white photo
ink drawing on bleached black and white photo
ink drawing on bleached black and white photo

All images from sketchbook.

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