Research Journal of Chemical Sciences _________________________________ ______ _____E-ISSN 2231-606X Vol. 6(5), 34-41, May (2016) Res. J. Chem. Sci. Optimization of organosolv Pulping, Bleaching process and Physico - chemical Characteristic for Mango Seed paper Saiprabha Mahale* and Anita S. Goswami-Giri Chemistry Research Laboratory, Department of Chemistry, B. N. Bandodkar College of Science Chendani Bunder road, Thane - 400 601 Maharashtra, India [email protected] Available online at: www.isca.in, www.isca.me Received 22 nd March 2016, revised 19 th April 2016, accepted 9th May 2016 Abstract There is a growing concern over use of wood pulp for paper making which has led to increase the usage of low -cost non- wood pulp for papermaking. Mango seed hard cover is having great potential for cellulose. Hence the present research paper focused on Mango seed hard cover as a source of Pulp and Paper industries. Developed Paper from mango seed using Flat sieve and Hand sheet press mould methods was compared based on Por osity, Thickness, absorbency, Tensile strength, etc. Physic chemical characteristics of paper were deliberated by optimizing organosolv process followed by bleaching. Keywords: Mango seed, pulp, Organosolv, Bleaching, etc. Introduction natural products that are identical for w ood pulp. Yet, researcher has been paid attention on pulp for paper industry developed 1 Mangifera indica (Mango) belongs Anacardiaceae family . from mango seed wastes. Hence, the attempt was made to Mango is addicted for having high nutritional and medicinal investigate more on mango seed wastes for the extraction of value, due to its tastes and flavour. Mango adds value as by - pulp, processing it towards the paper making, and it’s various products are used for animal fodder, and the timber is used for applications. canoe building and making charcoal. Mango friut source are effective against many diseases viz- arthritis, tumours, Materials and Methods infections etc 2. Raw material preparation: Mango seeds from fruit were The major constituents of wood fibers are lignin, cellulose, separated manually and sun dried for five weeks. After hemi-cellulose, extractives agricultural waste. These non -wood separation, the outer hard cover and inner kernel was separated fibers are used in more than 50% of pulp production in India and sun dried for two weeks. Hard cov er was chopped and and china 3. The economic advantage in many developing converted in to chips of an approximate size of 1 cm and oven countries is the presence of non-wood resources, a growing dried at 50 oC to remove moisture. domestic market for paper, reasonable labour costs, and absence of wood raw materials 4. Nowadays, the hig hest ratio of non- Pulp making by organosolv method 6: Fabrication from mango wood to total papermaking pulp capacities are in the developing seed hard cover pulp was carried out by the chemical process. market economies of Asia, Africa and Latin America, as well as Initially, mango seed hard cover in cooking operation, a the centrally planned economies of Asia. Some of these regions revolving (at 2 rpm) laboratory rotating digester with a capacity have more non-wood plant pulping capacities than wood of 15 litres was used. 40% Ethanol –water liquor was used as pulping capacities. Indeed, China has more than twice as much. cooking liquor, according to the general principles of Kleinert 7 Further, total non-wood plant pulping capacity worldwide is (1975) . Catalyst (H 2SO 4) was added to the liquor to increase increasing faster than the wood pulping capacity. With this delignification. In this study, the pulp was treated at 95 oC for background special emphasis on pulp and paper from MSHC is 60 min by 8% alkaline environment. Precipitated pulp which is in increasing demand for eco-friendly materials and the desire to cleaned from organosolv lignin was washed with water. The pH reduce the cost of pulp, agricultural wastes have been developed value of extracted pulp and bla ck liquor, taken from the digester for reduction of wood pulp in paper industries 5. at the end of cooking, was measured. India is rapidly industrial and economical growing country After these operations, the pulp was filtered and uncooked resolves that demand sup ply gap for paper. Researchers have material was separated. The pulp was then squeezed to 20 -25% attended on pulp achieved from agricultural wastes as a ratio of solid particle and placed into polyethylene bags and replacement for the wood pulp to reduce deforestation. Mango used for further process of paper making. seed act as renewable sources for pulp making due to presence International Science Community Association 34 Research Journal of Chemical Sciences __________________________________________________________ E-ISSN 2231-606X Vol. 6(5), 34-41, May (2016) Res. J. Chem. Sci. Optimization condition for manufacturing of pulp from Ash Content: Ash contain was determined as per the standard mango seed hard cover: Optimization for manufacturing of crucible method. pulp from mango seed hard cover was carried out to obtain Ash, percent by weight = 100 ∗µ maximum yield of pulp by using organosolv method. The following optimization studied by varying different conditions Where: w= weight in g of the crucible and the ash, X= weight in such as by varying percentage of Ethanol–water, percentage of g of the crucible, W+ weight in g of the crucible and the catalyst (H SO ), by varying time at constant temperature 95 oC 2 4 material and pressure at 25 kg cm-2 and by varying percentage of NaOH. Moister content: Table-1 ͽΜΗ΢ΗΏΚ ΋ΓΗΕΖ΢ͯͺΗΜΏΚ ΋ΓΗΕΖ΢ % Moisture content= X100 Optimization for manufacturing of pulp from mango seed ͽΜΗ΢ΗΏΚ ΋ΓΗΕΖ΢ hard cover by varying following cooking conditions % Time /min % catalyst Tensile strength: Tensile Strength is measured by standard Ethanol- @ T- 95 oC and P- %NaOH (H SO ) TAPPI T 494 method. Water 2 4 25 kg cm -2 10 0.1 20 2 Porosity: Porosity of paper is measure by Air resistance of paper (Gurley method) T 460. 8 20 0.2 30 4 Filtration Speed: 30 0.3 40 6 Filtration speed of the developed paper is measured as the time in second required passing 100ml of soft 40 0.4 50 8 water at ambient temperature under gravity flow. 50 0.5 60 10 Water absorbency: Total weight of dry bowl and dry paper - 0.6 70 12 was measured with the help of digital balance and is to be considered as dry weight. The combined weight of the bowl and the wet paper will be called the wet weight. Oxidation of Pulp /Bleaching of pulp: The Hydrogen Peroxide bleaching process was conducted at 10% pulp consistency with The weight of the water absorbed by the paper = wet weight - 2% H 2O2 based on oven dried pulp in plastic bags placed in a dry weight water bath. 3% Na 2SiO 3 based on oven dried pulp was used as peroxide stabilizer. Before adding bleaching chemicals, the pulp Water penetration test: Around six strips of paper are put in a was pre warmed. During the bleaching experiment the pulp was glass container by 1 cm of its bottom deep in water. Water mixed every 15 minutes for uniformity in bleaching process. penetrated by sheet is then observed by average distance (cm) travelled by water in 1 min. Characterization of paper A) Using Flat sieve and B) Using Hand sheet press mold: Manufacture of paper sheets was carried out by above two methods. Characteristic of it was observed by following conditions. GSM ( Grammage per square meter ): Grammage of a sheet of paper in g/m 2 is calculated by following formula, ΋ Φ ͥͤͤ Grammage= Ώ Φ ΐ Where: w+ weight of sheet in g , a= length of sheet in cm, b= width of sheet in cm Figure-1 Thickness/ Caliper: Thickness is measured by using properly Water penetration test (Capillary rise) calibrated thickness measurement micrometer. Ink Absorption Test: 10 ml of 1% ink solution taken in beaker. Density: Density of hand sheet is calculated by following Strip of MSHC sheet are fixed to paper clip onto the end of it. calculations. Slide the paperclip onto the glass rod, so that the paper hangs down. Glass rod is placed in the beaker so that the ends of the ͶΏΡΗΡ ΋ΓΗΕΖ΢ Density= paper are in the ink with taking care that the strip of paper does ΈΖΗΑΙΜΓΡΡ not touch. When the ink reaches top of the strip then taken out it International Science Community Association 35 Research Journal of Chemical Sciences __________________________________________________________ E-ISSN 2231-606X Vol. 6(5), 34-41, May (2016) Res. J. Chem. Sci. from the ink solution. Time and distance covered by ink is different conditions: Optimization for manufacturing of pulp measured. from mango seed hard cover was carried out to obtain maximum yield of pulp by using organosolv method. The results for Results and Discussion optimization study are expressed in following Tables and Figures. Optimization for manufacturing of Pulp from Mango seed hard cover by using Organosolv method by varying Table-2 Optimization for manufacturing of pulp from Mango seed hard cover by varying Ethanol–water % % Ethanol- % catalyst % % % Yield % Yield Time /min % Yield water (H 2SO 4) NaOH Yield 10 25 0.1 46 20 16 2 19 20 32 0.2 51 30 32 4 33 30 47 0.3 58 40 49 6 46 40 59 0.4 53 50 56 8 62 50 61 0.5 47 60 61 10 65 0.6 45 70 55 12 69 70 70 60 60 50 50 40 40 % Ethanol–water 30 Yield 30 20 % Yeild % % Yield % 20 10 10 0 0 10 20 30 40 50 0.1 0.2 0.3 0.4 0.5 0.6 % Ethanol–water % catalyst (H 2SO 4) A B 80 70 70 60 60 50 50 40 40 Yield 30 Yield 30 20 Yield % 20 % Yeild % 10 10 0 0 20 30 40 50 60 70 2 4 6 8 10 12 Time /min NaOH % D C Figure-2 Optimization for manufacturing of pulp from Mango seed hard cover by varying o A.