MySQL binary logs - skip a table
There is no mysql option to ignore a table in binary log.

If you could move the table to a separate database you might use binlog-ignore-db option, but this has its gotchas. You should understand how MySQL evaluates replication rules.

If you can write a wrapper script to load the data instead of mysqlimport (the manpage says that it's a command line interface to LOAD DATA INFILE), and the user you are importing the data with can have the SUPER privilege you might use sql_log_bin session variable like:

    SET @@session.sql_log_bin=0;
    LOAD DATA INFILE 'file_name' 
      -- other LOAD DATA INFILE options ;
    SET @@session.sql_log_bin=1;


This will disable binary logging for the current session, load the data and enable binary logging again.