The Bose--Fermi recoupling of particles arising from the \bZ_{2}--grading
of the irreducible representations of SU(2) is responsible for the Pauli
exclusion principle. We demonstrate from fundamental physical assumptions how
to extend this to gradings, other than the \bZ_{2} grading, arising from
other groups. This requires non--associative recouplings where phase factors
arise due to {\it rebracketing} of states. In particular, we consider
recouplings for the \bZ_{3}--grading of SU(3) colour and demonstrate that all
the recouplings graded by triality leading to the Pauli exclusion principle
demand quark state confinement. Note that quark state confinement asserts that
only ensembles of triality zero are possible, as distinct from spatial
confinement where particles are confined to a small region of space by a {\it
confining force} such as given by the dynamics of QCD.Comment: 15 pages, 4 figure