The theory of "Hawking radiation" says that black holes can emit different particles. We have a particle-antiparticle pair and one of them falls into the black hole while the other one escapes. On the other hand, we know that particles with color charge like quarks or gluons cannot travel freely. So my question is simple: Can black hole emit quarks or gluons ? I would be grateful if you could make it more understandable for me.