Monday, November 29, 2010
Saturday, November 27, 2010
The Best Solution!
Paper Hot Cups with PLA Lining:
The Solution of The Unsafe Plastic Lining Paper Cups
The Solution of The Unsafe Plastic Lining Paper Cups
Instead of using petroleum based plastics which create toxicity and environmental pollution, you can now use the compostable alternatives- the PLA lining paper cups.
World Centric biodegradable and compositable paper hot cups are lined with NatureWorks Ingeo™ polylactic acid (PLA), which is derived from corn grown in the USA. Most cups you'll find on the market are lined with polyethylene and wont compost. This PLA cups are compostable and heat resistant up to 200 degrees Fahrenheit.
These compostable cups will biodegrade within 30 days in a commercial composting facility, and within 90 days in a home composting system.
More information>>
Waxes are safer material for coating paper cups, but not for hot coffee !
Even through all waxes are organic compounds, both synthetic and naturally occurring, they are not the ideal material for coating hot drink paper cup due to their melt above 45 °C (113 °F). According to the Wikipedia website. Usually, the hot drinks temperature like coffee is between 160 degree to 185 which is much higher than the melting point of wax 113 degree.
Conclusion: it is not a solution for the unsafe coffee paper cup :(
Cetyl palmitate, a typical wax ester formula :
Look at the different coffee temperature that provided by the website Planet freeback.com.
Dennys 175 degrees 7-11 175 degrees Jack in the Box 160 degrees
Starbucks 175 degrees
McDonalds 185 degrees
Tuesday, October 12, 2010
Hi guys,
This is my survey for plastic lining in paper coffee cups. I really appreciate your taking the time to take the survey.
Many thanks :')
http://www.surveymonkey.com/s/THCQN3Z
This is my survey for plastic lining in paper coffee cups. I really appreciate your taking the time to take the survey.
Many thanks :')
http://www.surveymonkey.com/s/THCQN3Z
Monday, October 11, 2010
Final Problem and Purpose Statement:
Final Problem and Purpose Statement:
Problem Statement:
Coffee drinkers at SFSU are unaware that coffee paper cups cause health issues due
to the use of polythene lining.
Purpose Statement:
The purpose of this study was to research and develop a system for informing the SFSU campus
coffee drinkers of the dangers of unsafe paper coffee cups.
Tuesday, September 7, 2010
Problem and Purpose Statement
Problem Statement:
The information signs at the Millbrae Caltrain Station cause confusion to passengers who
always get wrong direction from the signs.
Purpose Statement:
The purpose of this study was to research and develop a clear and efficient information
sign for all passengers to get information easily and quickly.
Problem statement:
The Borders Cafe in Down Town Sunnyvale is not functional or comfortable, which doesn't meet readers' needs and wants.
Purpose statement:
The purpose of this study was to observe and develop the Borders Cafe to be functional and convenient for its readers especially the hacker group.
Problem and statement:
The Starbucks Coffee paper cups cause healthy problem for its consumers due to the plastic (polythene) internal layer cannot handle the 70+ Degree heat.
Purpose statement:
The purpose of this study was to research and develop a healthy material to make safe paper coffee cups for its coffee consumers.
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