  It is shown that the short-range part of the Goldstone boson exchange
interaction between the constituent quarks which explains baryon spectroscopy
and the short-range repulsion in the NN system induces a strong short-range
repulsion in the flavour-singlet state of the $\Lambda\Lambda$ system with
$J^P=0^+$. It then suggests that a deeply bound H-particle should not exist. We
also compare our approach with other models employing different hyperfine
interactions between quarks in the nonperturbative regime of QCD.
