1. Chemical Product Design & Development (CP5070)
Joanne Foo ( ) Pritipal Kaur ( )
Mohd Syaqif ( ) DCHE/FT/2B/01

2. Overview Target User Persona Product Requirements Engineering Concept
Test of Proof of Concepts
Testing Results
Process Flow Diagram
Product Life Cycle
Prototype
Conclusion

3. Target Users

5. Product Quality Factors
Based on the needs of our persona and target users;
The product should be able to maintain dryness of the foot.
The product should ensure the comfort of users.

6. JPS INSOLE

7. Materials
Non-woven fabric
Activated Carbon
Polyester

8. Testing for Proof of Concepts

9. contains trace amounts of minerals, lactic acid, and urea
Sweat
contains trace amounts of minerals, lactic acid, and urea
Properties (g/L)
sodium (0.9)
potassium (0.2)
calcium (0.015)
magnesium (0.0013)

10. Mimicking Sweat
for 100 mL of water, we used 0.09 g of salt to mimic sweat produced
100 mL water
0.09 g salt

11. Engineering Concepts Adsorption Desorption
Adsorption = adhesion of atoms, ions or molecules from a gas, liquid or dissolved solid to a surface. This process creates a film of the adsorbate on the surface of the adsorbent.
Desorption = phenomenon whereby a substance is released from or through a surface.
Keep the sole of the feet dry, so that it can prevent bacteria from growing → preventing odour
Desorption so that the spent activated carbon

12. Testing Procedure: Adsorption
Measure 2g of activated carbon in a weighing boat.
Put the measured activated carbon between 2 pieces of fabric.
Measure out 1.5g of saltwater and pour it over the fabric with activated carbon.
Weight was applied to the activated carbon.
Weigh out the wet activated carbon.

13. Testing Procedure: Desorption
After the salt water has been adsorbed, leave the activated carbon out to dry for 15 mins.
Measure the new mass of activated carbon.

14. Mass of activated carbon (g) Mass of saltwater adsorbed (g)
Results
Runs
Mass of activated carbon (g)
Mass of saltwater (g)
Mass of saltwater adsorbed (g)
Efficiency (%) 1
2.0092
1.517
0.767
50.6 2
2.0102
1.526
0.698
45.7 3
2.0033
1.509
0.748
49.5

15. Product Specification
From our results, 2g of activated carbon adsorbs 0.74g of “sweat”.
A person sweats 5g on average each day.
Assuming the person wears the shoe everyday for 12 hours and for 30 days, the shoe sole would require 400g of activated carbon.

16. Manufacturing Process
Continuous Process.
Increases productivity, where more units are completed in a certain amount of time.
Improves quality of the product since errors are easier to be spotted and corrected.

17. Process Flow Diagrams

18. Activated Carbon

19. Polyester

20. Non-Woven Fabric

21. Activated Carbon Insole

22. Prototype
Actual prototype

23. 1 2 3 TOP LAYER Non-woven Fabric MIDDLE LAYER Activated Carbon
BOTTOM LAYER
Polyester 1 2 3
Redraw the sketch!!!

24. Prototyping Procedure
Grind the activated carbon into powder form using pestle and mortar.
Cut the fabric cloth & polyester into the insole shape.
Spread a layer of activated carbon on the polyester.
Attach the top fabric to the polyester using shoe adhesive.

25. Some sweat will be absorbed by the fabric layer in contact with the feet.
Not all sweat will be adsorbed by activated carbon.
Creates a watery base around the carbon if it can’t adsorb anymore.
Limitations

27. OUR PRODUCT WORKS BASED ON OUR USERS NEEDS!!
Conclusion
OUR PRODUCT WORKS BASED ON OUR USERS NEEDS!!
Activated carbon does adsorb water molecules.
The fabric used allows “sweat” to pass through.
Water molecules are able to desorb from the activated carbon.

28. THE JPS TEAM
PRITIPAL
JOANNE
SYAQIF

29. Thank You!