EGGSHELL
WASTE OR RESOURCE?

SOFIDAR SOFEE

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SUMMARY

WHAT: Sketchbooks made by eggshells for sustainability.

WHY: Eggshells cause problems for the staff in recycling stations, as they are like sediment (matter that settles to the bottom of tanks and pipes). This means that the staff have to work manually and extra hard. This causes useful material with the potential to be used as biogas to disappear.

COLLABORATORS: Bakeries and households (source for eggshells).

MENTOR: Lars Löfqvist

ASSIGNMENT: The purpose of this thesis is to explore the material eggshells to find new sustainable uses. In addition, I want to draw people's attention to eggshells and let them know how to use waste as a resource. I also want to produce a material that is biodegradable.

INVOLVED: Sofidar Sofee

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THE PRODUCT: A sketchbook made of eggshells, a biocomposite developed by using starch such as tapioca and potato with water, vinegar and glycerol.

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If the sketch book is used it can be easily replaced with new egg-paper. But the cover can also be used more than once.

EGGSHELL

According to statistics from 2010 to 2019, egg consumption has increased with 32.6%. The average person in Sweden consumes about 350 eggs annually, an amount higher than other European countries. On Easter evening, egg consumption reaches its peak with six million eggs per hour. Think of the amount of eggshells being thrown out annually!

The average eggshell weighs 5.5 grams, contains 94% calcium carbonate, 2% phosphorus, 3% magnesium, traces of sodium, potassium, zinc, manganese, iron and copper.

Nowadays eggshells are used as fertilizers, used in medicine, cosmetic surgery, dental care, calcium supplements, in the food industry and in crafts.

RESEARCH & INTERVIEWS

The work began with literature search, interviews and a survey to understand people's views on eggshells. In literature research I came across many scientific articles on eggshells. I used toolkits and a material driven design method adapted to my process. Material driven design is a process where designers use a material to find the attributes of the material.

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The color of the cover and paper are made of natural ingredients such as onion peels, beets and food coloring.

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This color combination makes the sketch more vivid compared to normal sketch paper, and makes it pop.

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The shape of the sketchbook is like other sketchbooks, but the feeling it gives is different.

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This sketchbook has the size A5, which is good as you can bring it along with you and capture every idea you get.

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