Investigatory Project (methodology)

METHODOL OGY A. Ho w to Ma ke •

Mater ials:

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

Other Mat eria ls: 2 grams Venus Dye Mold and Deckle Silk Screen Cloth or Net Bag Weighing Scale Mortar and Scale •

Proce dur e: 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 sundried. The materials were first prepared before the experiment. 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. 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. 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.

B. How to T est After, producing the paper out of the Malunggay Bark, the researchers will ask somebody to rate the tear strength, texture and acceptance of the paper. Tear str eng th Rating

Description

1

extremely tough

2

very tough

3

tough

4

moderately tough

5

durable soft

Rating: _______ Textu re Rating

Description

1

extremely tough

2

very tough

3

tough

4

moderately tough

5

durable soft

Rating: _______ Acce ptance Rating 1

Description extremely tough

2

very tough

3

tough

4

moderately tough

5

durable soft

Rating: _______