PA seccotine has strong oil resistance, acid resistance and alkali resistance, with which can protect the printing machine from the erosion of fountain solution.
Second process: After operated by the front forward gas baffler, the paper reciprocates to the drum of the second layer to perform flanging of the backside.
Third process: After operated by the back forward gas baffler, the paper reciprocates to the drum of the third layer to perform flanging of the front side.