Remazol is a synthetic dye from chemicals. Remazol can be used by dyeing, dripping or quenching. This dyestuff has water soluble properties, has brilliant colors with good fastness, low affinity. In the coloring process, color requires a fixation process. Fixation process, as a binder or reinforcement so that the color does not fade. Fixation is done with Na2CO3 or soda ash. soda ash or also known as Sodium carbonate, Na2CO3, is a sodium salt of carbonic acid which is easily soluble in air, white powder. soda ash can be used as a reinforcement for reactive type dye batik. By adding soda ash to a reactive dye solution or remazol, this automatic dye can become strong and not fade. After the soda ash fixation process is added starch which has the function to glue the fabric to the dye so that it is strong and does not easily wear off.
In Indonesia where population is increasing significantly each year, managing the usage of fuels and searching biofuels alternative is an important thing to study. Banana is abundant in every region which resulted in waste. The fermentation of banana pseudo stem to bioethanol is interesting to proceed in mass production. S. cereviceae is used as a yeast and the ethanol content was estimated from samples by using gas chromatography. The results shown that all types of banana can be utilized to produce bioethanol. Based on three types of banana used in this study, uter banana produces more bioethanol and higher level percentage than becici and kapok bananas. The longer the fermentation process, the higher the bioethanol content.
Reactive dyes are a dye that can react with cellulose or protein, thus providing good colorfastness. Reactive dyes, besides being used to dyeing cellulose fibers, can also dye wool and silk fibers. One of the reactive dyes is remazol. Waterglass is a durable strong alkaline compound in the form of a thick colorless liquid. The use of waterglass in the textile industry itself varies greatly, including as a color reinforcement in the fixation process. Because of its essential function, the waterglass has become an urgent material for craftsmen, especially abstract batik craftsmen. Waterglass like it can’t be replaced, but it turns out there is a material that can be formulated to make artificial waterglass from salt, boarding, and water. For the media on dyeing, you can use a cotton cloth. Cotton cloth has strong properties (even when wet still absorbs), attracts body heat, wrinkles, shrinks, or shrinks (unless appropriately handled), is damaged by the sun, sweat and decay.
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