Interview questions for Wet processing - (Part 1)

byShakil ahmed -

Some interview questions for wet processing engineering.


Wet processing in fabric refers to a series of chemical and physical treatments that are applied to fabric or yarn to attain the favored properties such as color, texture, durability, and feel. These treatments contain the use of water, chemicals, and various machines to regulate the cloth or yarn's appearance, properties, and functionality.


Interview questions for Wet processing - (Part 1)
Interview questions for Wet processing - (Part 1)


What is the basic knowledge of dyeing?


Wet processing can involve one-of-a-kind stages, together with pre-treatment, dyeing, printing, finishing, and garment washing. In the pre-treatment stage, cloth or yarn is washed to eliminate any impurities or dirt, and then it is handled with chemicals to put together it for dyeing or printing. Dyeing includes the software of color to fabric or yarn, at the same time as printing entails making use of a sample to the material or yarn's surface.


Finishing strategies can consist of numerous remedies to enhance the fabric's properties, such as softening, wrinkle-resistance, or water repellency. Garment washing is the final stage, where the completed garment is washed to improve its softness and cast off any closing impurities.





Interview Questions For WET PROCESSING - (Part 1)
Interview Questions For WET PROCESSING - (Part 1)

01. What is dye?
Ans: Dye is a color substance which has ability to create bond with fiber.

02. What is pigment?
Ans: Pigment is a color substance which has not any ability to create bond with fiber.

03. Dyes or pigment, which one can use for coloration of any types of fiber?
Ans: Pigment. 04. When binder is used? Ans: Binder is used in pigment printing.

05. Which process is used for fixation of pigment color?
Ans: Curing.


06. Which process is used for fixation of color dyeing?
Ans: Steaming.

07. What is shade?
Ans: Shade is a depth of color.

08. What is shade%?
Ans: Shade% is defined an amount of dye in a textile material.

09. How much the capacity of atmospheric dyeing machine?
Ans: 600 kg/batch.

10. How much the capacity of HTHP dyeing m/c?
Ans: 700 kg/batch.

11. What’s the reason for producing uneven dye shade?
Ans: Uneven dyeing, improper chemical use, improper cycle time.

12. What is sizing?
Ans: Sizing is a process in which size material like starch, guran etc. is used in warp yarn.

13. What is the percentage of light shade?
Ans: 0.4% to 1%.

14. For which fabric mercerizing is done?
Ans: Woven.

16. What is the reason of doing mercerizing?
Ans: Increase luster and absorbency.

17. For which strength of fabric is increase?
Ans: Mercerizing.

Interview Questions For WET PROCESSING - (Part 3)

19. What is fastness?
Ans: Fastness is the capacity of fiber to contain color on its own structure.

20. Which dye is used in denim?
Ans: 90% denim is dyed by vat dye.

21. Why stabilizer is used in H2O2 bleaching?
Ans: For maintain the proper action of H2O2.

22. What the range of rubbing fastness of vat dye?
Ans: 2-3, Bad.

Related tag:

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