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Question

In a sizing process, if add-on is $12.8\%$ and paste concentration is $16\%$, the value of wet pick-up (%) would be

The correct answer is
80

Sizing Process: Calculating Wet Pick-up

This problem requires calculating the wet pick-up (%) in a textile sizing process using the given add-on (%) and paste concentration (%).

Sizing Formula

The relationship between add-on, paste concentration, and wet pick-up is defined by the following formula:

$ \text{Wet Pick-up (\%)} = \left( \frac{\text{Add-on (\%)}}{\text{Paste Concentration (\% )}} \right) \times 100 $

Given Values

  • Add-on = $12.8\%$
  • Paste Concentration = $16\%$

Calculation Steps

  1. Substitute the values into the formula:

    $ \text{Wet Pick-up (\%)} = \left( \frac{12.8}{16} \right) \times 100 $

  2. Calculate the ratio of add-on to paste concentration:

    $ \frac{12.8}{16} = 0.8 $

  3. Multiply by 100 to find the percentage:

    $ \text{Wet Pick-up (\%)} = 0.8 \times 100 $

    $ \text{Wet Pick-up (\%)} = 80\% $

Result

The calculated wet pick-up (%) is 80.

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Important Questions from FABR Woven Fabric Preparation Sizing

  1. If both the concentration (%, w/w) of size paste and target add-on are 12%, the total wet pick-up (kg) by 12 kg bone-dry warp sheet is
  2. The ingredient that is NOT used in sizing formulations is
  3. Compared to conventional sizing, the wet sizing process reduces
  4. For multifilament yarns, optimum add-on (%) of size is in the range
  5. In cotton yarn sizing, the starch primarily acts as
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