Mangosteen rind was dried and
ground in a grinding mill through mesh
number 35. Desized, scoured and
bleached 65 x 60 plain cotton woven
fabric weighing 137 g/m2
was purchased
from BekerTex Co., LTD. Chitosan
purchased from Seafresh Chitosan (Lab)
Company Limited with a molecular
weight of 111,000 g/mol and 95% degree
of deacetylation was used. Aluminium
potassium sulphate dodecahydrate (KAl
(SO 4 ) 2 . H 2 O), ferrous sulphate
heptahydrate (FeSO4.7H2O), stannous
chloride (SnCl2.2H2O) and copper
sulphate pentahydrate (CuSO4.5H2O)
were laboratory grade and used as
mordants. All chemicals were purchased
from suppliers in Bangkok.