271. The weave with long floats of threads produce loose structure and short floats produce firm structure (True/False).
Ans. True
272. What are the types of fabric?
Ans.
Woven fabric
Knit fabric
Non woven fabric
273. What is non woven fabric?
Ans. Sheets of fibers are held together by adhesives, stitching or needle punching to give a usable fabric.
274. What do you mean warp & weft yarn?
Ans.
Warp yarn = the lengthwise set of yarn
Weft yarn =the widthwise set of yarn.
275. Write down the classification of woven fabric with example.
Ans.
According to raw material e.g. cotton fabric, wool fabric, silk fabric
According to processing e.g. solid dyed, yarn dyed
According to their weaves or construction e.g. plain fabric, twill fabric, satin fabric
According to their structures e.g. single cloth, double cloth, pile fabric
According to end uses e.g. Clothing, floor covering, furnishing
276. In weaving process, which is first, sizing or winding?
Ans. Winding (winding → warping → sizing)
277. Why yarn preparation is required for weaving?
Ans.
To wind the yarn uniformly on suitable package
To have desired length of yarn on the package
To improve weaving efficiency.
278. What are the classifications of winding m/c?
Ans.
Pirn winding m/c
Cop winding m/c
Spool winding m/c
Cheese winding m/c
Cone winding m/c
279. What are the types of warping?
Ans. Two types
Direct or high speed or beam warping
Sectional or pattern or drum warping
280. What types of traversing method?
Ans.
Reciprocating
Rotating
281. Ribboning is a winding fault (yes / no)
Ans. Yes
282. Write down the types of yarn tensioner used in winding.
Ans.
Capstan Tensioner
Additive Tensioner
Combined Tensioner
Gate Tensioner
Lever Tensioner or automatic control tensioner.
283. Write down the types of guide.
Ans.
Type A → A yarn end is required for threading
Type B→ A yarn end is not required for threading
284. What is the main feature of twill weave?
Ans. A twill weave is characterized by diagonal lines of warp & weft floats on the face of the fabric.
285. What are the derivatives of twill?
Ans.
zigzag / pointed / waved twill
combined twill
Herring bone twill
Fancy twill
Broken twill
Continuous twill
286. Write down the classification of drafting?
Ans.
Straight draft
Special draft
Pointed draft
Skip draft
Flat pointed draft
Mixed draft
Broken draft
287. What is color & weave effect?
Ans. Simple weaves such as plain, twill and matt may be used in conjunction with two color warp and weft patterns to produce small geometrical designs in two colors that is called color & weave effect.
288. Where double cloth is used?
Ans. Decorative fabrics, such as sofa cover, furnishing cloth.
289. What is denim fabric?
Ans. A strong warp faces cotton cloth used for overalls, jeans, skirts etc. largely made in 3/1 twill weave.
290. Some fabric detail.
Ans.
Jean = 2/1 twill cotton cloth made warp or weft face.
Poplin = A plain woven warp rib fabric with fine warp and thick weft.
115. What is winding?
Ans. The transferring of yarn from one package to another is called winding.
291. Write down the classes of winding?
Ans.
A. On the basis of package hardness/softness-
Soft winding
Hard winding
B. On the basis of your coil on the package (traversing)
Precision winding and
Non-precision winding
292. What are the types of packages?
Ans. Fundamentally three different types of packages
The parallel would package.
The near-parallel wound packages and
The cross wound packages.
293. What are the classes of winding m/c basis on package of yarn produced?
Ans.
Pirn winding m/c
Cop winding m/c
Spool winding m/c
Cheese winding m/c
Cone winding m/c
294. What are the ways in which a yarn package may be unwound?
Ans. There are two ways in which a yarn package may be unwound-
Side withdrawal and
Over end withdrawal.
295. What are the faults of winding?
Ans. Faults-
Too soft or hard package
Improper knots.
Dirty package
Incorrect winding speed
Unsatisfactory package shape.
Ribboning
Balloning
296. Mention the Auxiliary functions of winding machine?
Ans. The Auxiliary functions of a winding machine include-
Creeling
Piecing
Doffing.
297. What is warping?
Ans. The parallel winding of a set of warp yarns from many yarn packages (cone/cheese) on a flanged bobbin (warping beam) at uniform spacing, tension and length is called warping.
298. How many types of warping?
Ans. There are mainly two types of warping-
Direct or high speed or beam warping
Sectional or pattern or drum warping.
299. Write the components of warping machine?
Ans. A warping machine consists of three main parts:
Creel
Headstock
Control unit.
300. Classify the sizing method?
Ans. On the basis of size % on the yarn-
Light sizing- 10% - 15%
Pure sizing - 16% - 25%
Medium sizing - 26% - 50%
Heavy sizing - 50% - 100%
On the basis of application process-
Surface sizing
Core sizing
Optimal sizing
