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 (mtppl@yahoo.com)

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 mr.space 8 years ago