Original Name for "Wen Zi" Is "Shu" and "Qi"

It is undoubted that han is the name for the words used by Han Nationality.But at the time when han zi(the Chinese character) was invented,was it called and zi? Or,in fact,it had another name? According !to the historical documents,this paper proves that in terms of philology and phonology,the original name for wen should be pronounced as shu and qi,and that and zi are the loan characters of the original ones.