Prime School BD (PSBD24) is popular blog site about technology, merchandising, textile & accounting rules in Bangladesh. Also the post that are publishing about Accounting tutorial, Textile, RMG, Merchandising, Knit Merchandising, Woven Merchandising, Apparel Merchandising, Garments, Dyeing, Spinning, Washing, Buying House, else many things with tips & tricks.

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Prime School BD (PSBD24) is popular blog site about technology, merchandising, textile & accounting rules in Bangladesh. Also the post that are publishing about Accounting tutorial, Textile, RMG, Merchandising, Knit Merchandising, Woven Merchandising, Apparel Merchandising, Garments, Dyeing, Spinning, Washing, Buying House, else many things with tips & tricks. বদিউজ্জামান ( রুবেল )
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Basic formula of fabric consumption for woven Merchandising

Basic formula of fabric consumption for woven:

Fabric Consumption Calculation for Woven Shirt

Normally, a “woven long sleeve shirt” consists with the following parts-
  • Body parts (Body Length + Chest width),
  • Sleeve,
  • Collar,
  • Cuff,
  • Collar Band,
  • Pocket,
  • Yoke.



·         1. Fabric consumption for the Body Parts (Body + Chest):
Here, we will apply the following formula (Per dozen),

= {(Body Length from HSP + Allowance) × (1/2 Chest + Allowance) ×2×12} / (Fabric Width × 36 × 2.54)

Clarification of formula:
**Why 36
Ans: To convert inch into yard. 36 inch=1yard

**Why 55
Ans: Fabric width 55 inch. It may vary.

**Why 2.54
Ans: If Measurement is cm.

2. Fabric consumption for the Sleeve:
Here, we will apply the following formula (Per dozen),

= {(Sleeve Length + Allowance) × (Arm hole straight + Allowance) × 2 ×2×12} / (Fabric Width × 36 × 2.54)

3. Fabric consumption for the Collar:
Here, we will apply the following formula (Per dozen),

= {(Collar Length + Allowance) × (Collar width + Allowance) ×2×12} / (Fabric Width × 36 × 2.54)

4. Fabric consumption for the Cuff:
Here, we will apply the following formula (Per dozen),

= {(Cuff Length + Allowance) × (Cuff width + Allowance) × 2 ×2×12} / (Fabric Width × 36 × 2.54)

5. Consumption for the Collar Band:
Here, we will apply the following formula (Per dozen),

= {(Collar Band Length + Allowance) × (Collar Band width + Allowance) ×2×12} / (Fabric Width × 36 × 2.54)

6. Consumption for the Pocket:
Here, we will apply the following formula (Per dozen),

= {(Pocket Length + Allowance) × (Pocket width + Allowance) ×2×12} / (Fabric Width × 36 × 2.54)

7. Consumption for the Yoke:
Here, we will apply the following formula (Per dozen),

= {(Yoke Length + Allowance) × (Yoke Height + Allowance) ×2×12} / (Fabric Width × 36 × 2.54)


How to Calculate Garments Costing for Woven Bottom?

Before starting of a woven bottom costing, a woven garments merchandiser should confirm the following matters:

1. Fabric consumption for the Body Parts:
Here, we will apply the following formula (Per dozen),

= (Body Length + Allowance × 1/2 Thigh width + Allowance × No. of Parts × 12) / (Fabric width × 36) (In yds.)

Note: Body Length = [(Front Rise + Back Rise) / 2] + Inseam Length

2. Fabric consumption for the Back Pocket (2pcs):
Here, we will apply the following formula (Per dozen),

= (Back Pocket Length + Allowance × Back Pocket width + Allowance × No. of Parts × No. of Pocket × 12) / (Fabric width × 36) (In yds.)

3. Fabric consumption for the Pocket Bag (2pcs):
Here, we will apply the following formula (Per dozen),

= (Pocket Bag Length + Allowance × Pocket Bag width + Allowance × No. of Parts × No. of Pocket × 12) / (Fabric width × 36) (In yds.)

4. Fabric consumption for the Belt Loop (5pcs):
Here, we will apply the following formula (Per dozen),

= (Belt Loop Length + Allowance × Belt Loop width + Allowance × No. of Parts × No. of Belt Loop × 12) / (Fabric width × 36) (In yds.)


  
Winding Calculation Formula in Weaving: 

1. Required time, 
 = Quantity of yarn in lb to be wound / Number of drum / actual production in lbs per hour

Or,
= Amount of yarns in lbs × count of yarn / No. of drum / actual production in hank

Or,
= Amount of yarn in hank / No. of drums / actual production in hank

2. Actual production in pounds, 
= Calculated hank /  Yarn count  × efficiency% 

3. Actual production per hour in pound, 
= Actual production in hank / Yarn count

4. Actual production in hank, 
= Calculated yards / 80 / Efficiency% 

5. Calculation production per hour in yards, 
= ∏× diameter × speed in RPM 


Warping Calculation Formula in Weaving: 

1. Required time in hour, 
= Length of warp to be produced in yards / Actual production per hour in yards 

2. Beam count or count of warp, 
= Length of yarn in yards on the beam / 840 / weight in lbs 
Or,
 = No. of ends × length of warp in yards / 840 / weight in lbs 

3. No. of ends in the warp, 
= Yarn count× weight in lbs / Warp length in hanks

Or,
= Yarn count × weight in lbs × 840 / Length of warp in yds

4. Length of warp, 
= Weight of warp in lbs× yarn count × 840 / No. of ends …………………..... (Yds) 

Or,
= Weight in lbs / No. of ends 

Or,
    Weight of warp in lb× count of yarn / No. of ends ……………. (Hank)

5. Weight of warp in lbs, 
    Warp length in yds× no. of ends / Yarn count / 840 

Or,
= Number of ends × length of warp in yds / Count of yarn 

6. Total length of yarn in the warp, 
= Number of ends× length of warp / 840


Sizing Calculation Formula in Weaving: 

1. Total wt of size on warp, 
= Wt of sized warp – wt of unsized warp 

2. Total length of sized yarn, 
= Total warp length × No. of ends 

3. Weight of sized warp in lbs, 
   Length of warp in yds. × Number of ends / Count / 840 

4. Weight (wt) of size to be put on warp, 
= Size% required to be put on warp × Wt of unsized warp, 

5. Count of sized yarn, 
    Warp length in yds × number of ends / Wt of sized warp in lbs / 840 

6. Count of sized yarn, 
   Count of unsized yarn × 100 / Size% + 100 

7. Sizing efficiency, 
= {Actual production/Calculated production) × 100%} 

8. Size% on warp, 
          Wt of size 
……………………………. × 100% 
  Wt of unsized warp 

9. Weight of unsized warp in lbs, 
   Warp length in yards × No. of ends / Yarn count / 840 
               

Loom Production Calculation Formula in Weaving: 

1. Loom production per hour in meter, 
    No. of loom × PPM × Time × Efficiency / PPI / 39.37 / 100 

2. Fabric weight, 

= (warp weight+ weft weight) 



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