I wonder you could explore further on the colors. Right now and all the while it has been limited colors or narrow scope of colors. Traditionally, it has been black color, light black or medium black. Likewise for blue color, it is either deep blue, light or medium blue. I knew that the colors were derived from plants, from the three leaves or natural ways. Since your country scientific research is very advance, why didn't you get your research center to assist to produce any others color in natural ways. Eg. Using various plants, combinations of various kind of growth that could possibly produce more others color so that you can use in this industry. I believe scientific research could help in this respect ( producing colors deduced from plants/growth or mixtures of any nature gift materials - ofcourse thru. Scientific research ). Coz' if you have more colors, obviously you could enlarge your markets. Customers do have different taste. Besides creating more jobs. I believe you are not going to stay stagnant or monotonous as such forever. Furthermore, you can also widen the scope by producing the various design. Instead of only using tying up methods, you could also introduce waxing methods like ' wax sprinkle ' , 'wax spraying' , 'wax dotting' , 'wax linning' , wax crisscross ', or etc, before soaking into the color liquids. Using wax to follow certain illustrated design that customer would be please to try for themselves. Ofcourse, it must be easy, enjoy, with funs , beautiful attractive design like flowers, etc. Now you have more products & more customers rather then the same design for centuries. I am sorry , i can't write chinese .