#7 Research Initiatives- Sami Ford

 Supima Cotton  

Apparel and home fashion quality begins with the fiber supima is a special and rare extra-long staple cotton, which is grown on Family Farms in California's San Joaquin Valley. This is known as the world’s finest cotton, strength and fitness give it softness and lasting color that make it the cotton of choice for the world’s leading designers and retailers supima’s exceptional softness results from its longer fibers, which are on average 35% longer than regular cotton. Because of the longer length it is smoother and cleaner yarns creating softer fabrics that are more resistant to pilling. Supima fibers are 45% stronger than regular cotton, creating beautiful drapery and great comfortable breathability, allowing garments to have a longer life.  

Additionally, it delivers long lasting color because its fibers are finer, that are able to absorb dyes deeper (reducing color fading). Supima cotton only represents 1% of cotton. However, it is the seeds that give them these amazing characteristics rather than the country of origin. Supima cotton is considered a 100% extra-long staple cotton, while Egyptian cotton averages only 20%. Supima cotton was developed over 100 years ago in Arizona! The name Supima comes from the superior puma and has a guaranteed unsurpassed product integrity through its network of top-quality license suppliers. Supima is the key to producing the highest quality products that are comfortable, beautiful, and long lasting.  

Technical Polypropylene 

In this video we learned about the structure, the process, the properties, and application of polypropylene. Polypropylene is produced by polymers or copolymers of propylene by addition of polymerization or propylene. They have three structures of polypropylene Isotactic polypropylene (used for fibers and plastics is suitable for textiles fibers because of its strength), Syndiotactic and Atactic Polypropylenes.  

In the production of Polypropylene, there are three phases it can use catalysts in polymerization: solution, mass, or gas phase. Polypropylene is fed into the polymerization vessel, along catalysts and solvent. Temperatures of 50-80 degrees and atmospheric pressure between 2-4 is maintained. Polypropylene polymer is formed continuously, and the slurry becomes very thick, the slurry then flows to the flush tank where unreacted polypropylene is vaporized for recirculation into the reactor. The slurry is then centrifuged to remove the solvent. It is removed from the centrifuge and is treated with anhydrous iso propane to remove solvent and other catalyst residues, which is then washed and dried. The dried polypropylene flake is supplied directly to polymer processors or compounded with suitable stabilizers. This is just one method of production.  

Some properties are that it is a lightweight material, has a low moisture regain, it has a melting point of 160-170 Celsius degrees, and is resistance to most acids, Alkalies, bacteria, and mildew. It is used in packaging materials (because of low moisture regain), masks, ropes and twines, and many other applications.  

Comments

  1. KatieOctober 6, 2024 at 12:06 PM

    Your summary is very good! You captured the main points really well and it was easy to follow.

    ReplyDelete
  2. Eliana JohnsonOctober 10, 2024 at 10:51 AM

    I love how detailed yet simple your summary is. it is very easy to follow and understand.

    ReplyDelete

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