The Chemistry Behind Textiles is Not What it Seams

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Across
  1. 4. The first synthetic dye, made in 1856.
  2. 8. Fibre with twists and a flattened kidney bean shape in the cross section.
  3. 9. Linen/Flax is made up of cellulose, ________, and lignin.
  4. 10. _______'s Reagent: Cuprammonium hydroxide solution used to identify wool.
  5. 12. Keratin-based fibre.
  6. 13. A dye that forms covalent bonds with hydroxyl groups in cellulose.
  7. 14. ________ Wool Standard.
  8. 15. A fibre that dissolves in glacial Acetic Acid and is weakened in acetone
  9. 16. Helps dyes form a strong bond with the fibre.
  10. 19. A type of rayon fibre that is cellulose treated with a base and carbon disulphide.
Down
  1. 1. Fibre that burns rapidly, forms a black bead, self-extinguishing, gives off black smoke, and smells fishy.
  2. 2. Silk that has been weighted with metallic salts often results in "________ silk".
  3. 3. The shape of nylon in a cross section.
  4. 5. A treatment using concentrated sodium hydroxide or potassium hydroxide.
  5. 6. Ability of a dye to resist fading from UV radiation.
  6. 7. N=N group that is sometimes present in direct dyes.
  7. 11. Rayon is ________-based.
  8. 17. A good dye for wool and silk fibres and has acid groups like COO-.
  9. 18. Made from a repeating chain of the amino acids glycine, alanine, and serine.