For ink manufacturers, waxes and additives are a relatively small portion of ink formulations, but these products drive performance. Leading suppliers of waxes and additives said the past year saw improvements in sales, and they anticipate further growth in the coming year. “The additives business for Shamrock fared well in 2013,” said Craig Baudendistel, director of sales at Shamrock Technologies. “We had a number of new product developments that were introduced in late 2012 and early 2013 t...