What will be the texture, cost value, and acceptance in the market of paper if recycled wood bark of malunggay is used in making it?
We think that if recycled wood bark of malunggay is used in making paper, then its texture will be rough, it is cheap, and it will be acceptable in the market.
Amount of dried malunggay bark Amount of chlorine Amount of caustic soda Amount of Venus dye
The weight of each is measured.
Manipulated Variable: • The type of material used in making paper
Responding Variable: • The texture, cost value, and acceptance of the paper
500 grams of dried malunggay bark 50 grams chlorine 100 grams caustic soda
2 grams Venus Dye Mold and Deckle Silk Screen Cloth or Net Bag Weighing Scale Mortar and Scale
I. Preparation of materials The barks of Malunggay stems are removed. The outer skin was scraped off and bark was stripped off from the inner wood. Then the barks were sun-dried. The materials were first prepared before the experiment.
II. Boiling of Malunggay Barks The dried barks were boiled in caustic soda and water for 2-3 hours. Then the barks were washed to remove chemicals. They were then pounded to produce wood pulp.
II.a. The dried barks were boiled in caustic soda for 2 – 3 hours.
II.b. The barks were washed to remove chemicals.
II.c. Then pounded to produce wood pulp.
III. Bleaching and Dyeing of the Wood Pulp The pulp produced in the process was bleached using chlorine. After bleaching, it was washed to remove chemicals. The wood pulp was soaked in water for 5-15 minutes to make it whiter. Then the wood pulp was boiled in dye and water for about 15 minutes.
Dyeing of the Wood Pulp
II.d. Produced Wood Pulp
IV. Molding and Drying of Wood Pulp The dyed wood pulp can now be molded. Using the mold and deckle, the wood pulp mixed with water was molded. To dry the pulp, place it on an even wall or screen to let it dry. When the pulp has already dried, strip off the paper from the wall.
The paper produced
After we had produced the paper out of the Malunggay Bark, we asked somebody to rate the tear strength, texture and acceptance of the paper.
Our hypothesis was right. The texture of the paper out of Malunggay Bark is rough. It is acceptable in the market, and it will be cheap if sold, because the materials are not expensive.
Credits Erika Sheane Estera (Researcher and Did the Experiment) Jomel Maroma (Researcher and Did the Powerpoint)
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