There are Dye inks and Pigment inks. Dye inks are generally less desirable than pigment inks.
I had problems with the results with refilling HP color cartridges. Seems that Universal Cyan plugs the cyan jet. Out of 6 refilled color cartridges, only one of them printed properly, and for only a short while. Never had a problem with Yellow or Magenta.
Same with my Canon printer. I had replaced the head twice, probably for no good reason thinking that the problem was with the heads. With the Canon, I soaked two plugged heads in cleaning solution and switched to generic Canon formulated Cyan. Problem cured! No more plugging.
My suggestion is that refilling should be done with dyes formulated for that particular printer cartridge. The dyes won't cost anymore than the "Universal Ink" but you won't have a problem.
Interesting that the "inks" are actually dyes. Why are they promoted as Ink?