Wet Processing Engineering Interview Questions with Answers
Question: 1. What Is Dye?
Answer:
Dye is a coloration substance which has ability to create bond with fiber.
Question: 2. What Is Pigment?
Answer:
Pigment is a shade substance which has now not any ability to create bond with fiber.
Chemical Engineering Interview Questions
Question three. Dyes Or Pigment, Which One Can Use For Coloration Of Any Types Of Fiber?
Answer:
Pigment.
Question: 4. When Binder Is Used?
Answer:
Binder is utilized in pigment printing.
Question: five. Which Process Is Used For Fixation Of Pigment Color?
Answer:
Curing.
Textile Interview Questions
Question 6. Which Process Is Used For Fixation Of Color Dyeing?
Answer:
Steaming.
Question: 7. What Is Shade?
Answer:
Shade is a intensity of colour.
Textile Graphic Designer Interview Questions
Question 8. What Is Shade%?
Answer:
Shade% is described an amount of dye in a textile fabric.
Question: 9. How Much The Capacity Of Atmospheric Dyeing Machine?
Answer:
600 kg/batch.
Fashion Designer Interview Questions
Question 10. How Much The Capacity Of Hthp Dyeing M/c?
Answer:
seven-hundred kg/batch.
Question: 11. What’s The Reason For Producing Uneven Dye Shade?
Answer:
Uneven dyeing, improper chemical use, incorrect cycle time.
WASH Officer (Water, Sanitation, and Hygiene) Interview Questions
Question 12. What Is Sizing?
Answer:
Sizing is a process wherein size cloth like starch, guran and many others is used in warp yarn.
Chemical Engineering Interview Questions
Question 13. What Is The Percentage Of Light Shade?
Answer:
0.Four% to at least one%.
Question: 14. For Which Fabric Mercerizing Is Done?
Answer:
Woven.
Question: 15. What Is The Reason Of Doing Mercerizing?
Answer:
Increase luster and absorbency.
Garments Interview Questions
Question 16. For Which Strength Of Fabric Is Increase?
Answer:
Mercerizing.
Question: 17. What Is Fastness?
Answer:
Fastness is the capacity of fiber to comprise color on its personal shape.
Garment Washing Interview Questions
Question 18. Which Dye Is Used In Denim?
Answer:
90% denim is dyed via vat dye.
Textile Interview Questions
Question 19. Why Stabilizer Is Used In H2o2 Bleaching?
Answer:
For maintain the right motion of H2O2.
Question: 20. What The Range Of Rubbing Fastness Of Vat Dye?
Answer:
2-three, Bad.
Question: 21. What’s The Meaning Of Hydroextactors?
Answer:
Removing water.
Question: 22. For Removing Hairiness From Woven Fabric Which Process Is Used?
Answer:
Singing.
Question: 23. Which Process Is Used For Removing Hairiness From Knit Fabric?
Answer:
Bio –era.
Question: 24. Why Stenter M/c Is Used?
Answer:
For GSM control.
Textile Graphic Designer Interview Questions
Question 25. What’s The Object Of Scouring?
Answer:
To putting off natural impurities (wax,fats,pectin).
Question: 26. What Is The Object Of Bleaching?
Answer:
To produce white coloration by means of getting rid of off white color of cotton.
Question: 27. Which Agent Used In Scoring?
Answer:
NaOH.
Fashion Designer Interview Questions
Question 28. Which Agent Used In Bleaching?
Answer:
Ca(OCl)2 , H2O2
Question: 29. What Kinds Of Color Theory Are Present?
Answer:
Pigment principle.
Light idea.
Question 30. Give The Major Color Of Light Theory?
Answer:
Red, Yellow, Blue.
Question: 31. Give The Primary Color Of Pigment Theory?
Answer:
Cayan, maganda,yellow.
Question: 32. How Black Color Is Produce?
Answer:
By identical combination of red, yellow ,blue.
Question: 33. How Green Color Is Produce?
Answer:
By same blending of blue and purple.
WASH Officer (Water, Sanitation, and Hygiene) Interview Questions
Question 34. How Maganda Color Is Produce?
Answer:
By identical combination of pink and yellow.
Question: 35. The Dye Which Are Used For All Kind Of Fiber Dying?
Answer:
Vat dye.
Question: 36. The Dyes Which Are Used For Cotton Fiber Dying?
Answer:
Reactive dye, Vate dye,Sulphur dye,Azoic dye.
Garments Interview Questions
Question 37. The Dye Which Are Used For Polyester Fabric Dyeing?
Answer:
Disperse dye.
Question: 38. What Is Bod?
Answer:
Biological oxygen call for.
Question: 39. What Is Cod?
Answer:
Chemical oxygen call for.
Question: forty. What Is Effluent?
Answer:
The water with chemical that is tired after dyeing.
Garment Washing Interview Questions
Question 41. The Indicators Which Are Very Important For Dyeing?
Answer:
Time, Temperature, ph
Question: 42. What Is Hardness?
Answer:
The presence of Ca and Mg salt in water is called hardness.
Question: forty three. What Is Temporary Hardness?
Answer:
The presence of bi-carbonate salt of Ca and Mg.
Question: forty four. How Temporary Hardness Is Removed?
Answer:
Simply by way of heating.
Question: forty five. What Is The Meaning Of Wtp?
Answer:
Water remedy plant.
Question: forty six. What Is Scal?
Answer:
Scal is the mixture of CaCO3 & Mg(OH)2
Question: 47. What Is Etp?
Answer:
Effluent remedy plan.
Question: forty eight. What Is Substantively?
Answer:
The fee of dye transfer from the dye method to the textile cloth, additionally the distribution of dye molecules in the textile cloth.
Question: forty nine. What Happened For Deep Shade?
Answer:
Fastness properties of dye improved and reduced of washing fastness.
Question: 50. What Is Affinity?
Answer:
The appeal of dyes to the textile cloth.
Question: 51. What Is Color Strike?
Answer:
Intial exhaustion at the fibre in a dye tub.
Question: 52. What Is Exhaustion?
Answer:
It is the system when adsorption, sorption and desorption finished then overall dye molecules enters into fibre
Question: 53. What Is Adsorption?
Answer:
It is the system while dye molecules cime to the surface of the fibre.
Question: 54. What Is Sorption?
Answer:
It is the technique while dye molecules enter into the fibre
Question: fifty five. What Is Desorption?
Answer:
The proocess by way of which the dye molecules come out from the inner side of the fabric fabric especially condition (mil, time, temple).
Question: fifty six. What Is Fixation?
Answer:
After washing which amount of dyes are touch with the fibre.
Question: fifty seven. Is The Pigment Water Soluble?
Answer:
Pigment is 100% water insoluble.
Question: 58. What Is Reactive Dye?
Answer:
Dye that reacts with the fabric fiber to produce each a hydroxyl and an oxygen linkage, the chlorine combining with the hydroxyl to shape a robust ether linkage; gives speedy, extremely good colorations.
Question: fifty nine. With Which Fibre Reactive Dye Maninly React?
Answer:
Cellulose fibre.
Question: 60. Why Reactive Dye Is So Called?
Answer:
Reactive dye incorporate reactive institution and this reactive institution makes covalent bonds with the fibres and turns into part of the fibre, thats why reactive dye is so referred to as.
Question: 61. What Is The General Formula Of Reactive Dye?
Answer:
General system of reactive dye
Where ,
R= Chromophore,
C= Cellulose.
Question: 62. Why Reactive Dyes Popular?
Answer:
Good washing fastness, suitable mild colour, lower cost, simpler technique and so on.
Question: 63. Which Parameter Reactive Group Do Not Contribute?
Answer:
Color, that’s decided through chromogen institution.
Question: sixty four. What Is The Reaction Between Reactive And Cellulose Fibre?
Answer:
Reaction between reactive and cellulose fiber
Question: sixty five. What Is The Relation Between Vinyl Sulhone Group And Halogen Group?
Answer:
The reactivity of vinyl sulhone institution is less than halogen group.
Question: sixty six. If No Reactive Group Increase Then What Happened?
Answer:
Binding also boom relying on dye shape.
Question: 67. Reactive Dye Absorp Up To _?
Answer:
Up to ninety%
Question: sixty eight. If The Molecular Weight Of Reactive Group Increases Then What Happened?
Answer:
Reactivity increases.
Question: 69. Reactivity Of Vinyl Sulhone Group And Halogen Group Increases With Which Parameters?
Answer:
PH and time.
Question: 70. What Is The Chemical Structure Of Cellulose Molecule?
Answer:
Chemical structure of cellulose molecule
Question: seventy one. What Is The Reaction Ratio Between -ch2oh And –choh (in Case Of Monochloro Triazinyl)?
Answer:
15:1
Question: 72. What Is The Reaction Ratio Between -ch2oh And –choh(in Case Of Dichloro Triazinyl)?
Answer:
three:1 to 7:1
Question: seventy three. How Many Types Of Reactive Dye On The Basis Of Reactive Group?
Answer:
2 sorts (1. Halogenated heterocycles, 2. Acivated vinyl compounds.).
Question: 74. Which Groups Are In Halogenated Heterocycles?
Answer:
Triazine organization (Procion, Cibacron, Pyrimidine etc),
Quinoxaline (Levafix, Dichloro quinuxaline).
Question seventy five. Give Some Examples Of Activated Vinyl Groups?
Answer:
Vinyl sulphone (Remazol), vinyl sulphonamide (Levafix), vinyl acrylamide (Primazine).
Question: 76. How Many Types Of Reactive Dye On The Basis Of Reactivity?
Answer:
High reactivity (Procion M),
Moderate reactivity(Liva restore E),
Low reactivity (Premazine).
Question seventy seven. Reactive Dye Can Be Divided Into _ Group?
Answer:
Hot brand and cold brand.
Question: seventy eight. How Many Types Of Reactive Dye On The Basis Chemically?
Answer:
Chloro triazinyl,
Vinyl sulphone,
Heterocycle halogen.
Question 79. Fastness Of Procion Scarlet Mx-g?
Answer:
Light: 4,
washing: four,
hydro chlorite bleaching: 2.
Question 80. What Is Hydrolysis Of Reactive Dye?
Answer:
The reaction of dye with water.
Question: 81. What Are The Stages Of Reactive Dye?
Answer:
Exhaustion of dye,
Fixation,
Wash off.
Question 82. Why An Electrolyte Is Necessary When Fibre Is Immersed In Dye Liquor?
Answer:
To assist the exhaustion of dye.
Question: eighty three. What Is Used As Electrolyte In Reactive Dye?
Answer:
NaCl.
Question: eighty four. How Fixation Controlled?
Answer:
By retaining right PH by means of including alkali.
Question: 85. Why Wash Off Applied & Why It Is Necessary?
Answer:
To eliminate more and unfixed dyes from material floor and is necessary for level dyeing and accurate wash fastness.
Question: 86. What Are The Controlling Parameters Of Reactive Dye?
Answer:
PH, temperature, dyeing time, liquor ratio,attention of electrolyte
Question: 87. What Is The Recipe For Cold Band Reactive Dye?
Answer:
Dye:three%
salt:60 gm/l
soda ash:15gm/l
M:L : 1:10
temp:60º C
time:1hr.
Question 88. What Is The Recipe For Hot Band Reactive Dye?
Answer:
Dye:4%
salt:80gm/l
soda ash:20gm/l
M:L : 1:15
temp:50-90º C
time:1-0.5hr
Question 89. What Are The Dyeing Methods?
Answer:
1. Discontinuous method:
Jigger dyeing system
(woven), Winch dyeing machine (knitted), Jet dyeing
gadget (woven + knitted),
2. Semi non-stop technique:
(Pad jig approach, Pad steam technique),
3. Continuous method:
(Pad dry technique, Pad steam technique).
Question: 90. Why Disperse Dye Is So Called?
Answer:
Because it is non soluble, non ionic dye and molecularly dispersed, in addition dispersing dealers are used with the dye.
Question: 91. Fastness Of Disperse Dye Is?
Answer:
Light fastness score 4-five and washing fastness is 3-four.
Question: ninety two. Why Sublimation Power Of Disperse Dye Is Good?
Answer:
Stable electron management.
Question: 93. Name Some Disperse Dye?
Answer:
Terrasil, Foron, Palanil, pesonil, Samara, Dispersal.
Question: ninety four. Why Disperse Dye Is Added To Water With Surface Active Agent?
Answer:
To shape an aqueous dispersion.