Pre-wetting in Textile Sizing
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Questions and Answers

What is the primary purpose of applying high squeezing pressure in the size box?

  • To ensure adequate pre-wetting and avoid dilution of size liquor (correct)
  • To reduce the hairiness of yarn
  • To improve the adhesion of the yarn to the warp beam
  • To increase the size add-on to the yarn
  • What is the benefit of using pre-wetting in the size box?

  • It improves the surface adhesion of the size to the yarn and reduces the size add-on by 30-50% (correct)
  • It has no effect on yarn strength and size add-on
  • It reduces the size add-on to the yarn by 10-20%
  • It increases the yarn strength by 50-60%
  • What is the function of the immersion roller in the size box?

  • To control the amount of sizing material applied to the yarn
  • To squeeze off excess size solution
  • To measure the yarn strength
  • To dip the yarn sheets into the size liquor (correct)
  • What is the effect of pre-wetting on yarn strength?

    <p>It increases the yarn strength by 15-20%</p> Signup and view all the answers

    What is the purpose of using multiple size boxes?

    <p>To accommodate different size materials, warp quality and density</p> Signup and view all the answers

    What is the function of the squeeze rollers in the size box?

    <p>To squeeze off excess size solution</p> Signup and view all the answers

    What is the total number of ends in a reed plan with 36 dents per inch and 2 ends per dent?

    <p>72</p> Signup and view all the answers

    What is the primary function of the reed in a loom?

    <p>To perform the primary motion of beating-up</p> Signup and view all the answers

    If the reed count is 72 Stockport, what is the average warp thread density in a reed plan with 24 total ends and 16 total dents?

    <p>54 inch</p> Signup and view all the answers

    What is the Stockport reed count required to achieve 56 ends per inch with a reed plan of 2 ends per dent?

    <p>28</p> Signup and view all the answers

    What is the term for the gap between two consecutive wires of a reed?

    <p>Dent</p> Signup and view all the answers

    If the reed count is 30 dents per inch, what is the average warp thread density in a reed plan with 18 total ends and 13 total dents?

    <p>41.5 inch</p> Signup and view all the answers

    How is the count of the reed defined in the Stockport reed counting system?

    <p>Number of dents per two inches of the reed</p> Signup and view all the answers

    What is the purpose of the reed in controlling the warp thread density?

    <p>To maintain the required warp thread density</p> Signup and view all the answers

    What is the relationship between the Stockport reed count and the number of ends per inch in a reed plan?

    <p>The Stockport reed count is directly proportional to the number of ends per inch.</p> Signup and view all the answers

    What is the main factor that determines the count of the reed to be used?

    <p>Warp thread density required in the fabric</p> Signup and view all the answers

    What is the purpose of calculating the average warp thread density in a reed plan?

    <p>To determine the density of the fabric.</p> Signup and view all the answers

    What is the purpose of the reed in keeping the warp yarns straight and parallel to each other?

    <p>To ensure uniform tension</p> Signup and view all the answers

    What is the main purpose of the drawing-in draft?

    <p>To determine the number of heald frames required for a particular weave design</p> Signup and view all the answers

    What determines the number of columns in the lifting order?

    <p>The number of heald frames shown by the drawing-in draft</p> Signup and view all the answers

    What is the term used to describe the number of ends passing through each dent of the reed?

    <p>Reed plan</p> Signup and view all the answers

    What is the relationship between the number of rows in the lifting order and the number of rows in the weave design?

    <p>The number of rows in the lifting order is equal to the number of rows in the weave design</p> Signup and view all the answers

    What type of draft is used when the warp yarns pass through the heald frames in a staggered manner?

    <p>Mixed or staggered draft</p> Signup and view all the answers

    What is characteristic of a regular reed plan?

    <p>Same number of ends per dent used throughout the width of the fabric</p> Signup and view all the answers

    What is the term for the order of passing the warp yarns through different heald frames?

    <p>Drawing-in draft</p> Signup and view all the answers

    What is the relationship between the weave design, DID, and lifting order?

    <p>They are strongly interconnected</p> Signup and view all the answers

    What is possible to construct from a given weave design?

    <p>Both the lifting order and DID</p> Signup and view all the answers

    What is constructed from the weave design and its drawing-in draft?

    <p>The lifting order</p> Signup and view all the answers

    What is an alternative way to construct a weave design?

    <p>By changing the lifting order and keeping the DID constant</p> Signup and view all the answers

    What is the term used to describe the process of constructing a weave design from a given lifting order?

    <p>Weave design construction</p> Signup and view all the answers

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