Alternatively, the coatings may comprise self contained coatings which combine to form colored visible areas upon impact or {TAIL ~ pressure} comprising either pressure rupturable microcapsules containing {HEAD ~ color formers} or color developers, or self contained coatings of solvent soluble dye particles and solvent containing microcapsules 
Alternatively , the coatings may comprise self contained coatings which combine to form colored visible areas upon impact or { TAIL ~ pressure } comprising either pressure rupturable microcapsules containing { HEAD ~ color formers } or color developers , or self contained coatings of solvent soluble dye particles and solvent containing microcapsules
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