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- How is wool made?
- What is carbonizing process of wool?
- What is grading of wool?
- What is scouring of wool?
- What is the shearing process of wool?
- What is the value of pure wool in the global market?
- What is the value of worsted wool yarn in the global market?
- What is worsted wool?
- Where is wool produced in the world?
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- How is cotton made?
- What are the properties of cotton?
- What is carding process?
- What is combing?
- What is cotton ginning and its types?
- What is the chemical composition of cotton?
- What is the value of cotton in the global market?
- Where is cotton produced in the world?
- Why is organic cotton expensive?
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- How is nylon made?
- What are nylon chips or polyamide chips?
- What are the properties of nylon?
- What is benzene?
- What is caprolactam (CPL)?
- What is NFY?
- What is the chemical composition of nylon?
- What is the value of nylon fiber in the global market?
- Where is nylon produced in the world?
- Who are the global caprolactam producers?
- Who are the major global producers of benzene?
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- How is polyester made?
- What are polyester chips?
- What are the end uses and countries producing PSF (polyester staple fiber)?
- What are the end-uses of polyester chips?
- What are the properties of polyester?
- What are the uses of paraxylene?
- What is MEG and who are its producers?
- What is paraxylene and its properties?
- What is polyester staple fiber (PSF)?
- What is Purified Terephthalic Acid (PTA)?
- What is the chemical composition of polyester?
- Where is polyester produced in the world?
- Who are the global paraxylene producing countries?
- Who are the global producers of Purified Terephthalic Acid?
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- How is acrylic made?
- What are the properties of acrylic?
- What is acrylonitrile?
- What is ASF?
- What is propylene?
- What is the chemical composition of acrylic?
- What is the global market of acrylonitrile and who are its producers?
- What is the global market of propylene and who are its producers?
- Where is acrylic produced in the world?
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What are the properties of rayon?
Let us now discuss the properties of rayon.
Microscopic Properties:
• Longitudinal Section (L.S.): Rayon has the presence of striations along the length of fiber that is the result of the solidification process used in fiber manufacturing while the surface is quite irregular.
• Cross Section (C.S.): Rayon has an extremely irregular cross-section from round to oval due to tiny grooves. The cross-section of rayon is difficult to control owing to the process of melt spinning which involves coagulation and precipitation of the filaments.
Physical Properties:
• Tenacity: The tenacity of the rayon is lower than the natural cellulosic fibers because the amorphous region in the fibers is greater, as a result, less hydrogen bonds are formed by the loosely arranged polymers. The strength further worsens in the wet state.
• Elongation and Resiliency: Rayon fabric is quite prone to wrinkling and creasing which reflects that the elongation is poor and resiliency is low.
• Density: Rayon is a quite lightweight fabric having a density of about 1.5g/.
• Moisture regain: Rayon has high moisture regain and takes up the moisture quickly. This is because of the presence of a high amorphous region that contributes towards the hygroscopic nature of rayon.
• Thermal Property: Rayon is a flammable fabric that ignites quickly. The heat conductivity is low in the rayon due to the more amorphous region.
Chemical Properties:
• Acids: Dilute acids at cold temperatures do not have much impact on the rayon. However concentrated acids cause fiber disintegration.
• Alkalis: Rayon is not damaged by the alkaline solution.
Organic Solvents: Rayon is highly resistant to organic solvents.