Bava Kamma

[the owner of the crops] may request [the owner of the vineyard] to repair it;  so also if it is broken through again he may similarly request him to repair it. But if the owner of the vineyard abandons it altogether and does not repair it he would render the produce proscribed and would incur full responsibility. MISHNAH. IF WOOL WAS GIVEN TO A DYER AND THE DYE  BURNT IT, HE WOULD HAVE TO PAY THE OWNER THE VALUE OF HIS WOOL. BUT IF HE DYED IT KA'UR,  THEN IF THE INCREASE IN VALUE  IS GREATER THAN HIS OUTLAY THE OWNER WOULD GIVE HIM ONLY THE OUTLAY, WHEREAS IF THE OUTLAY  WAS GREATER THAN THE INCREASE IN VALUE HE WOULD HAVE TO PAY HIM THE AMOUNT OF THE INCREASE, [WHERE WOOL WAS HANDED TO A DYER] TO DYE RED AND HE DYED IT BLACK, OR TO DYE BLACK AND HE DYED IT RED, R. MEIR SAYS THAT HE WOULD HAVE TO PAY [THE OWNER] FOR THE VALUE OF HIS WOOL. R. JUDAH, HOWEVER, SAYS: IF THE INCREASE IN VALUE  IS GREATER THAN THE OUTLAY, THE OWNER WOULD PAY THE DYER HIS OUTLAY, WHEREAS IF THE OUTLAY EXCEEDED THE INCREASE IN VALUE HE WOULD HAVE TO PAY HIM NO MORE THAN THE INCREASE. GEMARA. What does KA'UR mean? — R. Nahman said that Rabbah b. Bar Hanah stated: It means that the 'copper'  dyed it. What is meant by saying that the 'copper' dyed it? — Said Rabbah b. Samuel: