Optimization Of Crayon Production From Rumex Abyssinicus Dye Extract

Abstract

In This Study, The Natural Dye Was Extracted From ?�?Rumex Abyysinicus?�? By Using Soxhlet Extraction And Applied For Crayon Formulation, Because Of Its Good Affinity, Brilliant Colors, Non-Allergic On The Human BeingIn This Study, The Natural Dye Was Extracted From ?�?Rumex Abyysinicus?�? By Using Soxhlet Extraction And Applied For Crayon Formulation, Because Of Its Good Affinity, Brilliant Colors, Non-Allergic On The Human Being, Locally Accessibility, Non toxicity, And Not Damaging To The Environment. The Objective Of This Thesis Was To Investigate Proximate And Mineral Analysis, Effects Of Extraction Time, Solid-Liquid Ratio, And Particle Size Impact On The Yield Of Dye, And Characterization Of The Dye Obtained By Uv-Vis Spectroscopy And Ft-Ir To Determine Functional Groups. Design Of Experiment For Rsm Three-Variable And Three-Level Was Used To Analyze And Optimize The Effect Of Extraction Time (1.5h, 3.25h, And 5h), Dried Ground Rumex Abyssinicus To The Volume Of Ethanol Ratio Of (0.05g/Ml, 0.075g/Ml And 0.1g/Ml) And Particle Size (0.355mm-0.71mm) To Obtain The Maximum Yield Of Dye. Maximum Yield Of Dye (0.53%) Was Obtained At Extraction Time Of 5hr, Particle Size (0.355mm-0.5325mm) And Rumex To Volume Ethanol Ratio (0.075g/Ml). Ft-Ir Was Determined Functional Group Present On The Dye And Nature Of Bands And Uv-Vis Spectra Were Showed Absorbance Of Dye (0.908) At ??Max = 281n. And Also, This Study Investigated The Effect Of Paraffin Wax, Talc, Extracted Dye, And Temperature On The Formulated Crayon. And The Crayon Was Characterized By Using Uv-Vis Spectroscopy, Ft-Ir, Tga, Tensile Strength, Visibility, And Durability By Comparing It With Commercial Crayon. Design Of Experiment For Rsm Of Four Variable And Three-Level Was Used To Analyze And Optimize The Effect Of Paraffin Wax (4g To 8g), Dye (0.5g To 2g), Talc (5g To 9g), And Temperature (80 100 ) And Also At A Constant Value Of Stearic Acid 0.5g And Bee Wax 1g To Determine Maximum Absorbance Of Crayon Color By Using Uv-Vis Spectra. Uv-Vis Showed A Maximum Absorbance Of (0.830) At ??Max =298.7nm For The Crayon Formulated And The Commercial Crayon Was (0.68) At ??Max = 305.5nm, Tensile Strength Of Formulated Crayon Was 1.48n/Mm?? And Commercial Crayon Was 1.53n/Mm?? Respectively And The Percentage Of Elongation Of E (%) Break Strength Of Formulated Crayon Was 1.34% And For The Commercial Was 1.4%., Locally Accessibility, Non toxicity, And Not Damaging To The Environment. The Objective Of This Thesis Was To Investigate Proximate And Mineral Analysis, Effects Of Extraction Time, Solid-Liquid Ratio, And Particle Size Impact On The Yield Of Dye, And Characterization Of The Dye Obtained By Uv-Vis Spectroscopy And Ft-Ir To Determine Functional Groups. Design Of Experiment For Rsm Three-Variable And Three-Level Was Used To Analyze And Optimize The Effect Of Extraction Time (1.5h, 3.25h, And 5h), Dried Ground Rumex Abyssinicus To The Volume Of Ethanol Ratio Of (0.05g/Ml, 0.075g/Ml And 0.1g/Ml) And Particle Size (0.355mm-0.71mm) To Obtain The Maximum Yield Of Dye. Maximum Yield Of Dye (0.53%) Was Obtained At Extraction Time Of 5hr, Particle Size (0.355mm-0.5325mm) And Rumex To Volume Ethanol Ratio (0.075g/Ml). Ft-Ir Was Determined Functional Group Present On The Dye And Nature Of Bands And Uv-Vis Spectra Were Showed Absorbance Of Dye (0.908) At ??Max = 281n. And Also, This