10 October 2012

Textile Wastages | Wastages in Ring Spinning | List of Wastages in Combing/Simplex/Ring Frame

Wastage
The action or process of losing or destroying something by using it carelessly or extravagantly. Waste includes all items that people no longer have any use for, which they either intend to get rid of or have already discarded.

In practical,

Input – Output = Wastage

List of Wastage in Combing:
  1. Noil:                           As per desired & quality of the end product to be produced.
  2. Minilap Wastage:         0.25%
  3. Sliver Wastage :           0.25%
  4. Roller Wastage :          0.25%
  5. Fly Dust:                     0.10%
  6. Sweeping:                   0.20%
Wastages in Simplex/Speed Frame:
  1. Sliver
  2. Roller Waste/Bonda
  3. Pneumaphil Waste
  4. Roving Waste
  5. Sweeping Waste
  6. Clearer waste
  7. Invisible Waste
Note: Above 0.50% of total amount of wastage is not acceptable

Wastages in Ring Frame:
  1. Pnemaphil:                      0.20-0.30%
  2. Bonda:                           0.20-0.30%
  3. Roving waste:                 0.10-0.20%
  4. Thread waste:                 0.10-below
  5. Fly dust:                         0.20%
  6. Sweeping waste:            0.20%
Note: Total wastage is not more than 1%

Concept of Wastage:
  • Wastage Control(Previous Concept) = Wastage Production+Wastage Reduction
  • Wastage Management (Present concept) = Wastage Production+Wastage Utilization
Wastage Reduction Procedure/ Factors for Wastage Reductions:
  1. Raw materials selection
  2. Spindle speed
  3. Setting(Rollers, R/T, Traveller cleaner etc)
  4. Twist of yarn
  5. Machinery condition
  6. RH% and Temperature
  7. Proper material handling
  8. Adequate supervision 
 

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