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Questions and Answers
Which of the following is true about scouring?
Which of the following is true about scouring?
- It removes all impurities and natural color of silk threads
- It only removes impurities
- It only removes natural color of silk threads
- It removes all impurities except natural color of silk threads (correct)
What is the effect of oxidizing agents on silk thread?
What is the effect of oxidizing agents on silk thread?
- They turn silk threads yellow
- They give a more permanent white color (correct)
- They give a temporary white color
- They do not affect the color of silk threads
What is the reason for yellowish inherent color of degummed mulberry silk?
What is the reason for yellowish inherent color of degummed mulberry silk?
- The silkworm has a yellowish color
- The degumming process adds a yellowish tint
- The silk gum contains natural dyestuff
- The silk gum is not removed completely during degumming (correct)
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