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:

• Fabric Cost,
• Embroidery Cost,
• Printing Cost,
• Cost of Making (CM),
• Washing Cost,
• Accessories Cost,
• Commercial Cost,
• Others Cost.

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)