Preface
Water hyacinth is a water plant with the characteristics of hollow stems and rooted sert. Water hyacinth is often regarded as a weed because of its rapid vegetative growth and masking the underwater life process from the sun, causing a decrease in the oxygen solubility rate in the waters. Many people complain about the existence of water hyacinth, especially rural people who make waters such as rivers as their main transportation infrastructure.
On the other hand boardmarkers are a major requirement in education. Learning activities will not be complete without a boardmarker, especially if the teacher wants to explain something to his students. Both permanent markers and colored markers are the primary needs of various circles. Markers have some content such as Xylene or Volatile Organic Compound (VOC) that are harmful to the body such as disturbing breathing, dizziness, headache, short-term memory loss, and so on.
1. Knowing that hyacinth plants can be used as an ink boardmarker;
2. Know the characteristics of boardmarkers ink made from water hyacinth;
3. Knowing that ink from water hyacinth is feasible to produce
4. Know the right formula to make ink markers from water hyacinth.
This research utilizes carbon content in water hyacinth. Society has been assuming that water hyacinth is a pest or weed that needs to be eradicated because it disrupts the river ecosystem. Extermination with pesticides will be successful initially, but water hyacinth will boost its immune system so pesticides will not affect the water hyacinth.
The process of making ink markers first begins with the burning of water hyacinth. Once it is burned and has become, it is put in a closed container so that it does not fly. Next blender, beaker glass, and measuring cups are prepared to measure the ingredients used. Here are the ingredients and formulas used:
| water hyacinth (ml) | Resin (ml) | Alkohol (ml) | Aquades (ml) | Propilen Glikol (ml) | |
| Ink 1 | 15 | 5.5 | 35 | 45 | 3.5 |
| Ink 2 | 15 | 5.5 | 45 | 35 | 3.5 |
The measured materials are blended until well mixed, then blender is poured into the beaker glass after going through the screening process. The filtrate is then poured into a bottle of markers, and wait a while for the ink to propagate and be used. The remaining ink is then stored in a sealed container.
In testing viscosity is used ink markers as a quality comparator or control. The viscosity test aims to determine the degree of viscosity of the markers. The viscosity of the ink or viscosity is a matter of concern in the manufacture of ink. Ink should not be too thin and should not be too dense.
| Ink variation |
Viscosity |
| Ink 1 | 1,297 |
| Ink 2 | 2,725 |
| Control Ink | 1,117 |
From the test results, the viscosity of ink 1 is the most approximate ink with formula 15 ml water hyacinth, 5.5 ml resin, 35 ml alcohol, 45 ml aquades, and 3.5 ml propylene glycol.
In this chromatographic test used ink markers as a quality comparator. Chromatography test aims to know the Rf in ink. Test is done by dripping ink on iron plate then irradiated by artificial UV.
|
Ink variation |
Rf |
| Ink 1 | 1,297 |
| Ink 2 | 2,725 |
| Control Ink | 1,117 |
From the test results it can be concluded that Rf ink 1 is the most approximate ink with formula 15 ml water hyacinth, 5.5 ml resin, 35 ml alcohol, 45 ml aquades, and 3.5 ml propylene glycol.
Water hyacinth is a water plant with the characteristics of hollow stems and rooted sert. Water hyacinth is often regarded as a weed because of its rapid vegetative growth. Many people complain about the existence of water hyacinth, especially rural people who make waters such as rivers as their main transportation infrastructure.
Growth and development of water hyacinth can occur very quickly, because hyacinth is adaptable. Water hyacinth also contains tuber plants, so if the water hyacinth is cleared but not until the root, water hyacinth will remain alive and grow so as to disturb the aquatic ecosystems. This is in line with research Istighfaroh (2013), which states that water hyacinths have a negative effect on the environment that is to abandon the aquatic system so that the aquatic ecosystem is hampered which will eventually harm the community.
Worn markers will usually be discarded and then use a new one, but this adds to the amount of plastic waste in Indonesia. The Directorate General of Human Settlements also stated in 2015 that the more boardmarkers used will have an impact on the environment, especially plastic waste. Plastic waste production in Indonesia reaches 5.4 million tons per year.
In this case hyacinth plant is an alternative to safe ink marker replacement. Hyacinth plant mixed with the materials then filtered, so that the results obtained in the form of ink.
Based on the results of viscosity and chromatography test it can be concluded that ink 1 with 15 ml water hyacinth, 5.5 ml resin, 35 ml alcohol, 45 ml aquades, and 3.5 ml propylene glycol are the most similar inks to comparable inks. Ink markers from water hyacinth are eligible to be produced because of the similarity with ordinary and safer ink, as well as the raw materials obtained very easily.
The conclusion of this research is water hyacinth can be utilized as ink marker material.
Thank you for the information,water hyacinth like is beutiful flower and usefull.