Investigatory Project by Erika Sheane Estera and Jomel Maroma

RECYCLED WOOD BARK OF MALUNGGAY (Moringga Oleifera) AS HANDMADE PAPER An Investigatory Project By ERIKA SHEANE ESTERA JOMEL MAROMA Submitted to: Anne Mylene S. Itucal, PSHS WVC Integrated Science Teacher SY 2008-2009

Problem

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?

Hypothesis

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.

Experimental Design

Controlled Variables: Amount of dried malunggay bark Amount of chlorine Amount of caustic soda Amount of Venus dye

The weight of each is measured.

Experimental Design

Manipulated Variable: • The type of material used in making paper

Experimental Design

Responding Variable: • The texture, cost value, and acceptance of the paper

Materials

Raw Materials: 500 grams of dried malunggay bark 50 grams chlorine 100 grams caustic soda

Other Materials: 2 grams Venus Dye Mold and Deckle Silk Screen Cloth or Net Bag Weighing Scale Mortar and Scale

Procedures 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.

Procedures 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.

Procedures 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

Procedures 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.

Final Output

The paper produced

Data Gathered

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.

Tear Strength RATING

DESCRIPTION

5

Extremely tough

4

Very tough

3

Tough

2

Moderately soft

1

Durable soft

Rating: 2

Texture RATING

DESCRIPTION

5

Extremely tough

4

Very tough

3

Tough

2

Moderately soft

1

Durable soft

Rating: 3

Acceptance RATING

DESCRIPTION

5

Extremely acceptable

4

Very acceptable

3

Acceptable

2

Moderately Acceptable

1

Not Acceptable

Rating: 3

Conclusion

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)

ALL RIGHTS RESERVED Thank You for Watching!