[zanarota]

Hi, I'm a designer, not a chemist. I am developing a new material from recycled cardboard, impregnated with latex and finished with zinc chloride. I don't know how to bleach the paper with hydrogen peroxide. Can you help me? Remember, I am not a chemist, so it would be the easiest way. Thanks.

[zanarota]

3% aqueous solution doesn't work.

[pcm81]

Hydrogen peroxide has bleaching effect at temperatures above 60*C.
Well, it will bleech at all temperatures, but very slowly at lower temps.
https://en.wikipedia.org/wiki/Peroxide-based_bleach

You need bleach activators to use it at lower temps: https://en.wikipedia.org/wiki/Bleach_activator

[zanarota]

Is it necessary buffering agent? Do I need to neutralize the paper after bleaching?

[zanarota]

Hydrogen peroxide has bleaching effect at temperatures above 60*C.
Well, it will bleech at all temperatures, but very slowly at lower temps.
https://en.wikipedia.org/wiki/Peroxide-based_bleach

You need bleach activators to use it at lower temps: https://en.wikipedia.org/wiki/Bleach_activator

Thanks a lot