Calculation 2

Knit Fabric Dyeing Price list

Knit Fabric Dyeing cost


Shade wise dyeing charge without Enzyme & Silicon (Cotton & Lycra) 

Sl.   Shade      Shade %      Tube      Open    Open with 
                                             Finish    Finish    Heat set 
                                                                              
1     White          00.00           $0.49    $0.83       $0.97

2     Light      0.001 -1.49%    $0.90    $1.25       $1.53

3   Medium  1.50 -- 2.49%    $1.04    $1.39       $1.67

4     Dark     2.50 -- 3.99%    $1.18    $1.60      $1.74

5  Extra Dark   Above 4%       $1.39    $1.81      $1.94

6     R/Black                           $1.67    $1.94       $2.01

7     Royal                              $1.67    $1.94       $2.08



Average Dyeing Price without Enzyme & Silicon (Cotton & Lycra) 

Sl      Process                                      Price 
1     Tubler finish (cotton)                    $1.25
2     Open finish  (cotton)                     $1.60
3     Open finish with heat set (lycra)    $1.88

Note: Average shade will be treated excluding white,
          Reactive black & Royal color.



Double dyeing price without enzyme silicon (P/C, CVC) 

Sl      Process                                Price   
1     Tubler finish             $0.83/Kg will be added
                                        with cotton tube price

2     Open finish              $1.05/Kg will be added
                                        with cotton tube price

Note: For white color only Enzyme silicon price will be added



Price for additional process.


Sl     Process                                                             Price 
1     Enzyme Wash                                                     $0.14
2     Silicon                                                                 $0.07
3     Silicon Softener                                                   $0.11
4     Normal Brush                                                      $0.14
5     Peach Finish/Carbon Brush/Sueding Only              $0.35
6     Only Heat set                                                      $0.31
7     Normal Wash (Tube finish)                                   $0.49
8     Y/D Fabric Wash (Open)                                      $0.56
9     Y/D Lycra Fabric wash (Heat set & Open finish)    $0.90
10   Stentering                                                           $0.21


US$ 1 = 72 TAKA 


Pls note that, these are the latest prices when I'm publishing this post.
I'm collect these prices from a large group factory.
Price may vary depending on date & factory.

Thanks & Best regards
Bipul              

Posted by ehbipul at 10:53 AM 0 comments

Monday, August 22, 2011

Price list of sweater yarn.

Price list of sweater yarn.


Dear All,
Pls find below a price list (18.08.11) of sweater yarn (dyed).
These are the current prices when I am posting this.
Its  may vary or changed with the time. It is not constant.
It’s may also vary depending on factories.
I have collected it from a large sweater yarn dyeing factory.

S/L  Yarn Count      Description of Yarn      Unit Price/lbs    Remarks

                                 

                                 ACRYLIC GROUP

1.   2/32 SMM/        100% Acrylic High Bulky $2.30  ( 3,5,7 GG)

      2/24 DMM 

2.   2/36 SMM          100% Acrylic High Bulky $2.35  (Upto 10 GG)

      2/28 DMM
3.   1/36 SMM          100% Acrylic High Bulky $2.50   (Upto 12 GG)
4.   2/27 NM             100% Acrylic Cotton Like (Full Dull) $2.85 (3,5,7 GG)
5.   2/28 SMM          100% Acrylic Cashmere Like (Piece Dye) $2.70 (3, 5 GG)
6.   2/32 SMM          100% Acrylic Cashmere Like $2.70 (3,5,7 GG)
7.   2/36 SMM          100% Acrylic Cashmere Like $2.80 (Upto 12 GG)
8.   1/9 NM               100% Acrylic Smiling (Dull) $2.60 (3,5,7 GG)
9.   2/32 SMM           100% Acrylic Melange $2.50 (3,5,7 GG)
10.  2/32 SMM          100% Acrylic Wool Like $2.45 (3,5,7 GG)
11.  2/40 SMM          100% Bright Acrylic $2.80 (10-12 GG)
12.   2/52 SMM         100% Bright Acrylic $2.90 (10-12 GG)
                              

                               ACRYLIC/WOOL GROUP
13. 2/32 SMM           70% Acrylic 30% Wool (Double Dyed) $3.05 (3,5,7 GG)
14. 2/32 SMM           70% Acrylic 30% Wool (Single Dyed) $3.05 (3,5,7 GG)
15. 2/32 SMM           50% Acrylic 50% Wool (Double Dyed) $3.65 (3,5,7 GG)
16. 2/32 SMM           50% Acrylic 50% Wool (Single Dyed) $3.65 (3,5,7 GG)
17. 2/32 SMM           85% Acrylic 15% Wool (Double Dyed) $2.80 (3,5,7 GG)
18. 2/32 SMM           85% Acrylic 15% Wool (Single Dyed) $2.80 (3,5,7 GG)

                                COTTON GROUP
19. 2/20 NE              50% Acrylic 50% Cotton $3.15 (3,5,7 GG)
20. 2/30 NE              50% Acrylic 50% Cotton (Combed) $3.50 (Upto 12 GG)
21. 2/20 NE              100% Cotton (Carded) $2.50 (3,5,7 GG)
22. 2/32 NE              100% Cotton (Combed) $2.95 (Upto 12 GG)

                                 OTHER FANCY
23. 1/5.5                  100% Acrylic Tamu $2.50 (3,5,7 GG)
24. 1/5.5                  100% Acrylic Brushed $2.50 (3,5,7 GG)
25. 1/5.5                  100% Acrylic Mohair Like $2.50 (3,5,7 GG)
26. 1/5.5                  100% Acrylic Tamu Melange $2.65 (3,5,7 GG)
27. 1/16 NM              64% Viscose 36% Nylon $3.00 (10,12 GG)
28. 2/30                   100% Viscose $3.10 (10,12 GG)
29. 1/16 NM             70% Acrylic 30% Nylon $3.40 (10,12 GG)
30. 1/3.5 NM            Acrylic Chenille $2.85 (5 GG)
31. 1/2.2 NM            Acrylic Chenille $2.60 (3 GG)
32. 1/3.5 NM            Cotton Chenille $3.65 (5 GG)
33. 2/16 NE             (1 Ply) 40% Acrylic 60% Cotton (Bulky) $3.65 (3,5,7 GG)
34. 2/16 * (4 Ply)      40% Acrylic 60% Cotton (Roving) $3.65 (3,5 GG)
35. 2/16 * (2 Ply)      40% Acrylic 60% Cotton (Roving) $3.65 (3,5,7 GG)

Cost & Consumption calculation of Sweater

Cost & Consumption calculation of Sweater

From this example we will learn how calculate the price of sweater

Style: Cable leader Jumper, 100% Acrylic, 3 GG

Say,

         Weight of yarn = 12.00 LBS/Doz

         Wastage of yarn  = 10%

         Yarn price = $2.50/lbs

         Accessories Cost = $4.00/doz

         CM  = $36.00/doz 

Costing

Rules =  {(Sweater garments weight(doz) + Wastage) X Yarn price(per lbs)} + Accessories cost (per doz) + CM (per doz)

= (12.00 + 10%) X $2.50 + $4.00 + $36.00

= (13.2 X $2.50) + $4.00 + $36.00

= $33.00 + $4.00 + $36.00

= $73.00/doz (without any commercial cost)

= $6.0833 / pc

Sweater Knitting Stitch Classification

Sweater Knitting Stitch Classification

<!--[if !supportLists]-->1)      <!--[endif]-->Jersey Stitch

<!--[if !supportLists]-->2)      <!--[endif]-->Reverse Stitch

<!--[if !supportLists]-->3)      <!--[endif]-->Drop Stitch

<!--[if !supportLists]-->4)      <!--[endif]-->Milanese Stitch

<!--[if !supportLists]-->5)      <!--[endif]-->Half Cardigan Stitch

<!--[if !supportLists]-->6)      <!--[endif]-->Full Cardigan Stitch

<!--[if !supportLists]-->7)      <!--[endif]-->Sucker Stitch

<!--[if !supportLists]-->8)      <!--[endif]-->Mystics Reverse Stitch

<!--[if !supportLists]-->9)      <!--[endif]-->Mizu Stitch etc.

Sweater Knitting Designs Classification

Sweater Knitting Designs Classification:

1)      Cable Design

i)                    Fancy Cable Design

ii)                   Normal Cable Design

iii)                 2 pins, 3 pins, 4 pins & 5 pins cable design.

2)      Diamond Design

i)                    Fancy diamond design

ii)                   Normal diamond design

iii)                 1.2 pins, 1.1 pins & 3.3 pins diamond design  

3)      Ottoman Design : Troupe Design

i)                    Coarse

ii)                   Thin

iii)                 Medium

Thanks 

Bipul

Sweater GAUGE calculation system

Sweater GAUGE calculation system:

<!--[if !supportLists]-->i)                    <!--[endif]-->1.5 gauge contains : from 9 to 13 plies

<!--[if !supportLists]-->ii)                   <!--[endif]-->3    gauge contains  : from 6 to 8 plies

<!--[if !supportLists]-->iii)                 <!--[endif]-->5    gauge contains  : from 3 to 5 plies

<!--[if !supportLists]-->iv)                 <!--[endif]-->7    gauge contains  : from 2 to 3 plies

<!--[if !supportLists]-->v)                  <!--[endif]-->10  gauge contains  : from 1 to 2 plies

<!--[if !supportLists]-->vi)                 <!--[endif]-->12  gauge contains  : only 1 plies 

Thanks 

Bipul

List of Require Machineries for Sweater Factory

List of Require Machineries for Sweater Factory:

<!--[if !supportLists]-->1)      <!--[endif]-->Winding Machine

<!--[if !supportLists]-->2)      <!--[endif]-->Knitting Machine

<!--[if !supportLists]-->3)      <!--[endif]-->Linking Machine

<!--[if !supportLists]-->4)      <!--[endif]-->Washing Machine

<!--[if !supportLists]-->5)      <!--[endif]-->Hydro extractor Machine

<!--[if !supportLists]-->6)      <!--[endif]-->Dryer Machine

<!--[if !supportLists]-->7)      <!--[endif]-->Boiler Machine

<!--[if !supportLists]-->8)      <!--[endif]-->Steam Iron

<!--[if !supportLists]-->9)      <!--[endif]-->Over lock Machine

<!--[if !supportLists]-->10)   <!--[endif]-->Label Sewing Machine

How do calculate Kg from Yards (Knit fabric)

From this post we will learn how to calculate Kgs from Yards.

Say,
Fabric length  - 3.3611 yards ( 121 ")
Fabric Width - 45 "
Fabric Gsm - 140

Rules:

= Fabric length X Fabric width X GSM / 1550 / 1000

= 121" X 45" X 140 /1550 / 1000

= 762300 /1550 /1000

= 0.49180645161 kgs (weight of the followings fabric)

Hope above information will help you.

Saturday, August 13, 2011

How do calculate Applique consumption for knit garments.

In this post we will learn calculating of Appliqué for knit garments.

Say,
Applique length = 25 cm
Applique width = 15 cm
Fabric Gsm = 160

Rules:
Length X Width X GSM X 12 / 10000000 + Wastage

= 25 X 15 X 160 X 12 / 10000000 + 25%

= 0.09 kg per dozen (consumption of the applique)

Be careful regarding the wastage.

Calculation of different fibre percentage in knitted fabric

Normally fabrics are knitted with one kind of yarn but in some cases more than one type of yarn of different counts and combination (mixing of two different fibres) are used. One very common example is knitting of fleece fabric, which is knitted by using fine and course yarns, and one yarn is made of polyester and cotton. Another example is knitting of fabric by using spandex filament and cotton or pure polyester.  In such condition there is a requirement to mention exact percentage of different fibres in the fabric. Supplier has to mention this ratio on label. In this post I will discuss the methods to calculate such percentage with the help of examples.

Find exact composition of different fibres in fleece fabric from the following data:

Yarn count front                                    30s 100 cotton

Yarn count for loop                               20s 50:50 P/C

Consumption ratio                                 Front: loop 2:1 (by weight)

Suppose for front we need 2Kg yarn and for loop we will be requiring 1 Kg yarn

 Front yarn        2 KGS 100 % cotton    Cotton 2000 grams

 Loop yarn        1 Kg     50:50 P/C          Cotton 500 grams and Polyester 500 grams

Exact Ratio

Cotton total       2.5 Kgs

Polyester           0.5 Kgs

Ratio:

Cotton:         83.33%

Polyester :     16.66

Calculate GSM (w/o machine)

Calculate GSM from the data given

Total Weight of fabric                 = 15.5 Kgs

Length of fabric                          = 35 meters

Width of fabric in open form      = 65 inches

Solution:

First we will calculate area of the fabric

Fabric length      = 35 meters

Fabric width      = 65 inches or 1.65 meters

Fabric area        = Length * width

                         =35 * 1.65

                         =57.75 meters square

Weight of 57.75  Meter square is 15.5 kgs or 15500 grams

 So weight of one square meter  

= 15500/57.75

= 268.39 grams per meter square of GSM of the fabric   

Thanks

Calculate weight of fabric

Calculate weight of fabric from the given data.

Grammage                                300 GSM

Width of fabric              35 inches (in tubular form)

Length of fabric                        20 meters

First we will calculate area of the fabric

Area of fabric = Fabric length * fabric width

                          = 20 * 35*2 (since fabric is in tubular)

                        39.37 (one meter is equal to 39.37 inches)

                        = 35.6 meter square

Weight of one meter square is   = 300 (GSM)

And weight of 35.6 meter square = 300*35.6

 Ans.                       = 10680 grams or 10.680 Kgs 

Relation between length, width and grammage

It was observed during interaction with the people working in garment business that they face difficulties in calculation related to grammage, width and length of the fabric. In the following post we will explain relationship among these factors with examples.

To be continue

Convert 250 GSM (grams per square meter) into OSY (ounces per square yard)

Convert 250 GSM (grams per square meter) into OSY (ounces per square yard)

It means weight of one meter square is 250grams or

Weight of one square meter is 8.93 ounces (28 grams are equal to one ounce) or

Weight of 1.196 yard square (one meter square is equal to 1.196 yard square) is 8.93 or

Weight of one yard square =  8.93* 1

                                             1.196

                                   

Answer = 7.47 ounces  per yard square 

Convert 10 OSY (ounces per square yard) into GSM (grams per square meter)

Convert 10 OSY (ounces per square yard) into GSM (grams per square meter).

It means weight of one yard square is 10 ounces or

Weight of one square yard is 280 grams (one ounce is equal to 28 grams) or

Weight of one 0.836 meter square (one yard square is 0.836 meter square) is 280 grams or

Weight of one meter square =  280* 1

                                                0.836

                       

                        Answer = 344.9 grams per meter square 

Grammage Expressions

Generally grammage is expressed in Grams per Meter Square (GSM) but in certain cases it is also expressed Ounces per Yard Square (OSY). People, particularly working in marketing and merchandising departments face problems in converting GSM into OSY. We will explain this conversion method with examples before that it is imperative to know the standard conversion factors of different measuring units.

Conversion of GSM (grams per square meter) into OSY (ounces per square yard)

 250 GSM means that weight of one meter square fabric is 250 grams and 10 OSY means weight on one yard squares is 10 ounces.  In the following post I will explain the method of conversion from GSM to OSY and vice versa

Calculate nominal production of a fleece-knitting machine per hour

Calculate nominal production of a fleece-knitting machine per hour from the data given:

Machine Gauge                         18

Machine Dia                              30 inches

Number of Feeders for               60

Front yarn        

Number of feeders                    30

For loop yarn

Machine RPM                            28

Yarn Count                                26s for front

Yarn count for loop                   16s

Stitch length of                                    4.5 mm

front yarn

           

Stitch length of                                   2.5 mm

Loop yarn

           

Efficiency                                 85%

Solution:

Step one

First we will calculate number of needles and number of stitches produced in one revolution. This would help us in calculating the total length of yarn consumed in one revolution.

Number of needles = machine dia * gauge * p (3.14)

                             = 30* 18*3.14

                             =1696 (exact 1695 but needles are

                               always in even number so we will

                               take nearest even figure)

In this example we will calculate consumption of yarn in Kgs of both yarns and then we will add them to get final production per hour

Consumption of yarn for front knitting

Every needle is making one stitch on every feeder because machine is producing single jersey fabric (front of fleece).

Number of stitches produced in one revolution

= Number of needles * number of feeders  

= 1696*60

= 101760

This figure shows that machine is making 101760 stitches in one revolution.

Step Two

Length of stitch is 04.5 mm (stitch length is always calculated in metric system)

From this figure we can calculate yarn consumption in yards in one hour

Yarn Consumption (in yards) in one hour

= number of stitches * length of (mm) * RPM *60 (minutes)

                      1000(to convert mm into meters)

=101760 * 4.5 * 28 * 60

            1000

= 769305 meters or

= 841312 yards

Step Three 

In previous step we calculated quantity of yarn consumed in yards. We can easily calculate weight of this yarn while its count is known (see example 03).

Weight of cotton yarn = length of yarn

                                     Count * 840

                                    =   841312

                                         840 * 30

                                    = 38.52 pounds or

                                    = 17.43 Kilo grams

Efficiency         85%      = 14.85 Kilo grams

Answer: this machine will consume 14.85 Kgs of yarn to knit front of the fleece fabric in one hour at 85 % efficiency

Step Four

Yarn consumed for loop knitting (back of the fabric)

Every needle is making one stitch on every feeder because machine is producing single jersey fabric (front of fleece).

Number of stitches produced in one revolution

= Number of needles * number of feeders  

= 1696*30

= 50880

This figure shows that machine is making 50880 stitches in one revolution.

Note: that we have put 30 cones of course count for loops after every two feeders.

Step Five

Length of stitch is 2.5 mm (stitch length is always calculated in metric system)

From this figure we can calculate yarn consumption in yards in one hour

Yarn Consumption (in yards) in one hour

= number of stitches * length of (mm) * RPM *60 (minutes)

                      1000(to convert mm into meters)

=50880 * 2.5 * 28 * 60

            1000

= 213696 meters or

= 233696 yards

Step Six

In previous step we calculated quantity of yarn consumed in yards. We can easily calculate weight of this yarn while its count is known (see example 03).

Weight of cotton yarn = length of yarn

                                    Count * 840

                                    =   233696

                                         840 * 16

                                    = 17.39 pounds or

                                    = 7.89 Kilo grams

Efficiency         85%        = 6.70 Kilo grams

Step Seven

Now we can add both yarn consumed

Yarn for front                14.85

Yarn for back                6.70

 Total                            21.55

This machine can produce 21.55 Kgs fabric in one hour at 85% efficiency

All above discussion to elaborate the way to calculate the optimum production of a knitting machine. We have develop a equation which is useful in evey situation to calculate the optimum production capacity of a knitting machine at 85% efficiency.

For cotton count

Production in one hour =

Gauge * Dia * 3.14 * RPM *60 

* Stitch length (mm)  *1.0936 * 1 * 85

     1000 *840 * yarn count * 100 

For Filament yarn : Calculate nominal production of a single jersey-knitting machine per hour

Calculate nominal production of a single jersey-knitting machine per hour from the data given:

Machine Gauge              28

Machine Dia                  26 inches

Number of Feeders       120

Machine RPM                  30

Yarn Denier                   75

Stitch length                  4.5 mm            

Efficiency                              85%

Solution:

Step one

First we will calculate number of needles and number of stitches produced in one revolution. This would help us in calculating the total length of yarn consumed in one revolution.

Number of needles = machine dia * gauge * p (3.14)

                             = 26* 28*3.14

                             = 2286 (exact 2285.92 but needles are

                                always in even number so we will

                                take nearest even figure)

Number of stitches produced in revolution

 Every needle is making one stitch on every feeder because machine is producing single jersey fabric (full knit fabric).

Number of stitches produced in one revolution 

= Number of needles * number of feeders  

= 2286*120

= 274320

This figure shows that machine is making 274320 stitches in one evolution.

Step Two

Length of stitch is 04.5 mm (stitch length is always calculated in metric system)

From this figure we can calculate yarn consumption in yards in one hour

Yarn Consumption (in yards) in one hour

= number of stitches * length of (mm) * RPM *60 (minutes)

                      1000(to convert mm into meters)

= 274320 * 4.5 * 30 * 60

            1000

= 2221992 meters                                                                     

Step Three 

In previous step we calculated quantity of yarn consumed in yards. We can easily calculate weight of this yarn while its count/denier is known (see example 05).

Weight of filament in grams = Length in meters * denier                                                                                        

                                                                                                                                                 9000

                                                                       = 2221992*75    

                                                         9000

            Answer                                                 =18516 grams or

                      =18.516 Kgs                              

Efficiency         85%       = 18.516*85%

                                       =15.74 Kgs

                                                             

Answer: this machine can produce 15.74 Kgs fabric in one hour at 85 % efficiency                  

Note: if we are producing any textured fabric, like fleece, then we use two different yarns at different feeders and ultimately stitch length is also different. In such case we should calculate separately consumption of different yarn at different feeders. Following example will help in calculating production in case of use of more than one kind yarn.

Calculate nominal production of a single jersey-knitting machine per hour:

Calculate nominal production of a single jersey-knitting machine per hour from the data given:

Machine Gauge              24

Machine Dia                  30 inches

Number of Feeders       90

Machine RPM                26

Yarn Count                    24

Stitch length                  4 mm   

Efficiency                     85%

Solution:

Step one

First we will calculate number of needles and number of stitches produced in one revolution. This would help us in calculating the total length of yarn consumed in one revolution.

Number of needles = machine dia * gauge * p (3.14)

                             = 30* 24*3.14

                             = 2260 (exact 2260.8 but needles are 

                               always  in even number  so we will 

                               take nearest even figure)

Number of stitches produced in revolution

Every needle is making one stitch on every feeders because machine is producing single jersey fabric (full knit fabric).

Number of  stitches produced

in one revolution = Number of needles * number of feeders  

                         = 2260*90

                         = 203400

This figure shows that machine is making 203400 stitches in one revolution.

Step Two

Length of stitch is 04 mm (stitch length is always calculated in metric system)

From this figure we can calculate yarn consumption in yards in one hour

Yarn Consumption (in yards) in one hour

= number of stitches * length of (mm) * RPM *60 (minutes)

                      1000(to convert mm into meters)

=203400 * 4 * 26 * 60

            1000

= 1269216 meters or

= 1388015 yards

Step Three 

In previous step we calculated quantity of yarn consumed in yards. We can easily calculate weight of this yarn while its count is known (see example 03).

Weight of cotton yarn = length of yarn

                                    Count * 840

                                    = 1388015

                                        840 * 24

                                    = 68.85 pounds or

                                    = 31.23 Kilo grams

Efficiency         85%       = 26.55 Kilo grams

Answer: this machine can produce 26.55 Kgs fabric in one hour at 85 % efficiency