Test this, surely that it is going to works:
col1=col1.replaceAll("\\n"," ");
col1=col1.replaceAll("\\t"," ");
col1=col1.replaceAll("\\r"," ");
col1=col1.replaceAll("\\v"," ");
col1=col1.replaceAll("\\chr(9)"," ");
col1=col1.replaceAll("\\chr(10)"," ");
col1=col1.replaceAll("\\chr(13)"," ");
//col1=col1.replaceAll("\\-"," ");
Take care of that it validates those to him that knew that they were jumps of line of tabulator, vertical tabulator etc.
Daniel