Discussion
Match each fibre with the class of brightener normally used on it.
List I
A. Cotton
B. Polyester
C. Wool
D. Polyamide
List II
1. a type stable under the mild acidic conditions used
2. a substantive type resembling a direct dye
3. a type with affinity under weakly acidic conditions
4. a disperse type applied at high temperature
Answer: A
A brightener must have affinity for the fibre in the same way a dye does, so no single product serves every substrate. Blends often need two brighteners together. Each class matches a family of dyes. No single product covers every substrate.
No comment is present. Be the first to comment.
Loading…
Post your comment
Please log in or register to post a comment.
Examination Categories
- SSC Exams
- Banking Exams
- Teaching Exams
- Civil Services Exams
- Railways Exams
- Engineering Recruitment Exams
- Defence Exams
- State Government Exams
- Police Exams
- Insurance Exams
- Nursing Exams
- Other Government Exams
- NRA CET
- PG Entrance Exams
- Campus Placement
- MBA Entrance Exams
- CUET and UG Entrance
- Judiciary Exams
- Regulatory Body Exams
- Software Development