KNOW YOUR COTTON

Know Your Cotton: How to Check Purity

Understanding the purity of cotton is essential for ensuring quality in textiles and clothing. Here are some methods to check the purity of cotton:

Visual Inspection

• Examine the Fiber: Pure cotton fibers are generally soft and fluffy. Look for any synthetic fibers that may appear shiny or slick.

• Check the Color: Natural cotton is typically off-white or cream. Bright white cotton may indicate bleaching or the presence of synthetic fibers.

Burn Test

• Take a small sample of the cotton fiber and carefully ignite it. Pure cotton will burn quickly, producing a smell similar to burning paper.

• Observe the Ash: Cotton leaves a fine, soft ash, while synthetic fibers may produce hard, bead-like residues.

Water Test

• Soak a small piece of cotton in water. Pure cotton absorbs water well and will feel wet after a short time.

• Synthetic fibers may repel water or take longer to absorb moisture.

Microscopic Examination

• Using a microscope, examine the fibers. Pure cotton fibers are typically twisted and have a natural irregular shape.

• Synthetic fibers will appear smoother and more uniform under magnification.

Label Verification

• Check the product label for information regarding fiber content. Look for terms like "100% cotton" or "cotton blend."

• Be cautious of misleading labels that may use terms like "cotton-rich" which can indicate a blend with synthetic fibers.

Conclusion

By utilizing these methods, you can effectively assess the purity of cotton and make informed decisions when purchasing cotton products.