Abstract: The piezoelectric generator is characterized by providing a spacer member in the vicinity of a fixed end of an elastic plate mounted on a base plate by means of affixing both ends in such a way as to prevent the elastic plate not to be deformed unnecessarily when a load is applied to the elastic plate from above, so that a piezoelectric ceramic plate glued onto the elastic plate generates electric power by the elastic plate's deformation.

Abstract: A disperse dye composition containing:20 to 50% by weight of a water-insoluble or sparingly soluble dye; and1 to 5% by weight of a water-soluble surface active agent represented by the formula: ##STR1## wherein R.sup.1 is a hydrogen atom or an .alpha.-methylbenzyl group, R.sup.2 is a hydrogen atom or an .alpha.-methylbenzyl group, R.sup.3 is a hydrogen atom or a methyl group, R.sup.4 is a hydrogen atom, a methyl group or an .alpha.-methylbenzyl group, any one of l and n is 0 and the other is an integer of 7 to 20, and m is an integer of 0 to 5.