In this embodiment, {HEAD ~ the color former} containing {TAIL ~ microcapsules} may be produced by any method known in the art; however, a preferred method of microencapsulation is disclosed in Seitz, U.S. Pat No 4,889,877, the disclosure of which is incorporated by reference 
In this embodiment , { HEAD ~ the color former } containing { TAIL ~ microcapsules } may be produced by any method known in the art ; however , a preferred method of microencapsulation is disclosed in Seitz , U.S. Pat No 4,889,877 , the disclosure of which is incorporated by reference
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH