How to water dextrin based printing ink water resistance?

I am trying to formulate water based rotogravure printing ink with dextrin as main binder inside, for printing on paper . Only problem I am facing  is  of water resistance. The dried ink (pigments) smudges when water is put over it. Please suggest the additive to over come this problem. Thanks. - Manish Patel (

Asked by mtppl 4 years ago

what do i need to do to use sparkler fountain black powder in a homemade fuse?

Hi, a fireworks sparkler fountain that i had lying around in my room has dropped its contents as the base clay stuff crumbled away, and what i was left with was a paper case full of fountain powder. the kind of fountain is the kkind that is it a paper tube like normal fireworks, but make a spray of sparks fames and colours of the ground, not a sparkler stick, now sparkler fountain powder isnt like gun powder, this stuff burns slowly, probably because it has less oxidizer. what i need to know, is what i should do to the powder to make it suitable to use as normal black powder when making a fuse using dextrin in the proportions 10/1. i have access to a large amount of potassium nitrate, do i perhaps need to add more of it to the sparkler powder.

Asked by oldmanbeefjerky 7 years ago

Chemicals people would want to make?

Basically I want to know what lab chemicals you want to make, if you know how to make any useful chemicals. please post, I am not responsible for and injury's, fatality's, or "bad things" of any sort that come from this thread, all things posted here are to assumed for informational purposes only.

Posted by 8 years ago