TECHNOLOGY DEVELOPMENT OF LEATHER PRESERVATION FOR CRAFT HANDICRAFT PRODUCTS

Abstract

The purpose of  this  research   is  developing  preservation   technology  of  the  Pondoh zalacca  and  Zalacca  Gading peel for craft products   material.  The study  begins  with analyzing  content,  water,  carbohydrates, and proteins  in the peel  of zalacca  that is the cause of the growth  of fungus  and microorganisms. The next step is preservation  using borax, formalin, and  chlorine  at concentrations: 2, 4, 6, 8, and  10%. The activity  of fungal   growth  on  the peel  were  observed  in  microscopic,   and  the  characteristics of materials for  craft products  made by observing  the characteristics  of the peel  including the texture, softness,  andfracture. The results showed  that the bark peel has high content of  water which is 74.67% in Pondoh zalacca and 30.06% in zalacca gading. The carbohydrate   content  of  Pondoh  zalacca  peel   at 3.8%,  and  zalacca  gading  peel   at 5.5%. Protein  content at 0.565% in Pondoh zalacca  and 1.815% in zalacca  gading.  The observation for 3 (three) months showed preservation  with borax, formalin,  and chlorine at  all  concentrations  effectively  prevent  fungal   growth.  The  good  peel   elasticity   of Pondoh  zalacca  and  Gading produced by  using borax, formalin, and chlorine  in  the concentration  of below 6%, while giving preservative  chlorine above 4% make the peel a -little whiter, and preservation  of over 4% borax makes chapped peel so it is difficult to be attached to the craft media.

Keywords:  Technology, Preservation,  Zalacca peel, and Art Crafts