Restoration graphics

[Amateur]

Сообщение от Marina13

To dissolve in water (distilled), 5.7%p-p.

Swedes recommend weaker: 3 - 4%solution.

Сообщение от Marina13

The main long time to keep in solution, because paper can greatly raskisnut and tear when they remove it.

And specifically how long to keep that paper does not limp? I understand that it depends on many factors: variety, content of wood pulp, age, and keeping the original quality of paper production, so it is difficult to give an exact answer, but at least an order of magnitude? And can we somehow move the process to determine that the paper is about raskisnet, and urgently need to remove it from the solution?

[Марина13]

The lower the concentration of the solution, the longer the holding time, which is undesirable. I always see to eye when it's time to remove. I think time 10 minutes - maximum. If the paper is not enough bleach - better to repeat again after complete drying.

[K-Maler]

Сообщение от sergejnowo

redpolagayu that yellowing around the figure can be removed. But is it possible to remove the yellowing under the picture?
Our offer as an example to discuss the work of Ilya Repin:

Not really understand why remove the yellowing. it does not spoil the picture, if it does not stain. DI Kiplik ( "painting technique", izd.SVAROGi K, 1998. MOSCOW) advises yellowed paper bleach wetting it with hydrogen peroxide. I was so bleached some drawings and even watercolors, rubbing the swab on the back side, but first I want to try on something irresponsible. And do not use it where there is a gouache.

[sergejnowo]

Сообщение от K-Maler

Do not really understand why remove the yellowing.

I have a couple of very decorative watercolors.
Strong zheltinka led to a lack of contrast, painting hard to see.

[NATA NOVA]

Though I liked the last picture (but rarely like that) .. Stylish, literate, soulful ...