HOW DO CROSS-LINKING ‘RESINS’ IMPART CREASE RESISTANCE PROPERTY TO THE COTTON /CELLULOSICS AND WHAT ARE THE LIMITATIONS?
Mechanism of Crease resistance. Understanding the mechanism of creasing in cotton, it emerges that primarily cotton can be rendered crease resistant by arresting / suppressing Hydrogen bonding by adopting techniques That would block / restrict formation / cleavage and re-formation of Hydrogen bonding by cross linking with an external agent This cross linking would also improve the dimensional stability of the fibre and make it resistant to creasing. Cross linking of Urea Formaldehyde (Di-Methylol Urea – HO-CH2-HN-CO-NH-CH2 OH) is given below just to visualize /understand. Reacting with Hydroxyl groups of cellulose and elimination of water the following type of cross-links takes place. Such a cross linking would disable Hydrogen bonding at those linked sites. Resins based on ‘Urea Formaldehyde; modified urea formaldehyde are highly reactive predominantly self cross-linking type (resulting in relatively less cross linking with cellulose) tend to form self cross linked polymer film.on the
Related Questions
- HOW DO CROSS-LINKING ‘RESINS’ IMPART CREASE RESISTANCE PROPERTY TO THE COTTON /CELLULOSICS AND WHAT ARE THE LIMITATIONS?
- What limitations are placed on a debtor’s right to use, sell, or lease its property during a Chapter 11 case?
- What are the CCA deduction limitations with respect to renewable energy property?
