What is Uster Classimate Quantum Machine?

What is Uster Classimate Quantum Machine?

Uster Classimate Quantum

Uster Classimate Quantum Machine automatically classify thick & thin places as well as foreign fibers in yarn on the basis of classing matrix.  Quality is a pre-condition for marking of any products in the present competitive yarn world market. For maintaining proper quality of products provision for a number of textile quality control equipment for testing and analyzing raw cotton to finish fabrics including computerized equipment of Uster Classimate Quantum Machine has been considered in the project cost.

KNIT APPAREL                                                                                

  Test Code #1                                                     

NATURAL FIBERS

Fiber Content :100%Cotton,100%Linen,Ramie,Hemp,Wool,Silk and Blends

End Use :Tops,Bottoms,Dresses,Active Wear,

TestTest MethodPerformance Requirement
Flammability – all fabrics16 CFR Part 1610Class 1
Fabric WeightASTM D3887As specified ± 5%
Thread Count (courses/Wales)ASTM D3887As specified ± 5%
Yarn SizeASTM D1059,D1244As specified + 1 yarn size
Fiber ContentAATCC 20/20ASingle Fiber: No tolerance

 

Blended Fiber: ± 3%

Appearance after Laundering /Dry

 

Cleaning

Visual InspectionSatisfactory
Dimensional Stability

 

-after three Launderings

 

 

– after one Dry-cleaning

Following Care

 

Label AATCC 135/150

 

 

AATCC 158

General Knits: ± 5%

 

Fleece/French Terry: ± 6%

Waffle/Rib/Ottoman: ± 8%

Wool / Silk : ± 3%

General Knits ± 3%

Skew

 

 

AATCC 179

 

Method 2 Option 3

Tops: 4% Maximum

 

Bottoms: 3% Maximum

Stripes: 5% Maximum

Bursting StrengthASTM D378640 lbs.
Seam Strength

 

(elongation)

 

ASTM D1683

 

using existing seams

 

35% elongation or

 

minimum 7lbs. Pressure

Pilling ResistanceASTM D3512Class 3.0 at 60 minutes

 

Class 4.0 at 30 minutes

PerspirationAATCC 15Color change: Class 4.5

 

Staining: Class 4.0

pH LevelAATCC 81pH 6-8
Colorfastness to Chlorine Bleach

 

(If indicated by Care Label)

AATCC 61, 5A or

 

135 with Bleach

Color change: Class 4.0
Colorfastness to Non-Chlorine Bleach

 

(If indicated by Care Label)

AATCC 172 (5 cycles)

 

ITS Soaking Method

Color change: Class 4.0
Lightfastness

 

(All Fibers 20 hours AFU exposure)

(Silk – 10Hours AFU exposure)

 

AATCC 16 E

 

 

 

 

                                 Light -Medium Dark

Color change:                    3.5           4.0

Crocking

 

 

AATCC 8/116

 

 

       Light-Medium  Dark  Special   Sulfur

 

Dry:       4.0            4.0      3.5       3.0

Wet:       3.0            2.5      2.5       2.0

 

Colorfastness to Laundering

 

 

AATCC 61/132

 

 

                   Light-Medium Dark Special Sulfur

 

Color Change:    4.0            4.0    4.0      3.0

Staining:            4.0            4.0    3.0      3.0

Self-Staining:      4.5            4.5    4.5      4.0

Water Repellency

 

(Nano/Teflon Treated Fabric)

 

AATCC 22 or

 

Dupont Method

 

-Original 100 (ISO5)

 

-After 10 Home Laundering 90 (ISO4)

-After 20 Home Laundering 80 (ISO 3)

-After 30 Home Laundering 70 (ISO 2)

Oil Repellency

 

(Nano/Teflon Treated Fabric)

 

AATCC 118

 

 

-Original 6

 

-After 10 Home Laundering 5

-After 20 Home Laundering 4

-After 30 Home Laundering 4

 

Written By - Jony Ahmed, Lab Technologist, Osaka Japan
What is ERM Cleaner and Rieter in Textile Factory?

What is ERM Cleaner and Rieter in Textile Factory?

ERM Cleaner

It is a fine cleaning machine and it employs with cleaning roller which acts similar to carding roller. It opening, cleaning and removing micro dust and waste.

MACHINE SPECIFICATION:-

No. of machine     = 5

Make                     = RIETER

Model                   = B 5/5

DRAW FRAME

Objective:-

There are mainly two objective of draw frame:

  1. Drafting
  2. Doubling

Doubling is done to reduce the unevenness that is weight per unit length. In the sliver generally 6-8 slivers are double in the draw frame drafting is done for parallelisation and to get the required hank of the sliver.

Here two draw frame line are used

  1. Breaker draw frame
  2. Finisher draw frame

Here six breaker draw frame, and six finisher draw frame are used. Draw frames used over here are made by RIETER of model SB51 and RSB951. These entire machine have 3/3 drafting arrangement. These models are equipped with an open loop auto levelling arrangement.

BASIC PRINCIPLE AND WORKING OF DRAW FRAME:-

During drafting tension on the fibre is given between the set of two or more roller. The major aim of drawing is to reduce the number of fibre in the sliver cross-section. To reduce the number of fibre in the sliver front roller is rotating at more rpm then back rollers. So there is Ferris ion on the sliver, no of fibre in the cross-section decrease and the fibre becomes more parallel. Most of the drawing machine consists of two zone drafting system. In which two drafting zones are there.

  1. Back zone
  2. Front zone

Drafting is given in both the zones.

The back draft varies between 1.3 and 1.7 depending upon the specification of the fibre. The function of the back zone or draft is essentially to prepare the material for the main drafting zone in the front.

DRAW FRAME

In Ring Spinning department there are total 8 Draw Frame.

  • 4 – Breakers
  • 4- Finisher

BREAKER DRAW FRAME:

Make    – RIETER

Model -RSB-D15

Drafting – 3 over 4

Can diameter – 90 cm

Doubling – 6 sliver

Speed – 500-560 m/min

Production – 1300 to 1500 kg/hr.

FINISHERS DRAW FRAME:-

Make – RIETER

Model – RSB-D35

Drafting – 3 over 4

Can diameter – 30 cm

Doubling – 6 slivers

Speed – 500-560 m /min

Production – 1300 to 1500 kg/hr.

Written By – Jony Ahmed, Lab Technologist, Osaka Japan

What is Natural Indigo Dyeing Machine?

What is Natural Indigo Dyeing Machine?

Natural Indigo Dyeing Machine

As the reduced indigo dyeing machine has very little affinity for cotton in spite of the deep shades while dyeing with concentrated vat dye, the result is sufficient fastness. For this reason the cotton warps for Blue Jeans are dyed in 4-6 passages in sheet form. By a passage it means the run of goods through an immersion, vat following by squeezing and an air passage for oxidation of dye stuff . A major part already oxidized dye stuff remains fixed to the material while being processed in the following immersion vat. Only the chemical solution is almost completely replaced by fresh indigo vat. Thus with every subsequent passage the depth of dye penetration increases. After the last air passage the stuff ringed by 2 or 3 ringed trough.

Details in Dyeing & Sizing machine:

  1. Machine Name : Slasher Indigo Dyeing Machine.
  2. Country of origin : West Point, USA.
  3. Model No. : 654
  4. No. of Machine : 01
  5. Creel capacity : 21
  6. Speed of the Machine : 16 meters / minute for Dark Indigo,

: 20  meters / minute for S. Black.

: 23  meters / minute for  Normal Indigo.

  1. Production capacity per day : (21x1320x.95) = 26334 Mts (Considering the product mix 65% Indigo 20% Dark Indigo,15% Sulphur Black.)

Dyes and Chemicals wastage : 1 – 2 %

Szing material wastage           :  2.5%

Pls note : This yarn wastage is already taken in fabric process loss.

Down Time :                                                                                                 

  1. If dyeing route is similar then down time 45 minutes/Dyeing Lot. (Two and Half lot per day)
  2. If dyeing route is different then down time 3 hours (Two time per 7 days)
  3. If dyeing route is same but need to colour change then down time 2 hours (Two time per 15 days).

Indigo Denim Manufacturing Process

Yarn Peperation

Continuous Dyeing

Beaming

Slashing

Weaving

Finishing

What is Indigo Dyeing Machine Process
Dyeing Machine Process

Continuous dyeing of cotton yarn with Indigo Dyeing Machine

  1. Indigo denim dyeing:

The “Mult-dip” process is by far the only continuous method adopted for indigo yarn dyeing.

The dyeing machineries used for yarn dyeing are divided into two categories namely the rope dyeing range and the slasher dyeing range.

Processing Stages

Rope Dyeing

Ball warping

Dyeing

Re beaming

Sizing

Weaving

Finishing

Finished Fabric.

Slasher Dyeing Process:

Warping

Dyeing &Sizing

Weaving

Finishing

Finished Fabric.

The main difference between rope dyeing and slasher dyeing is that for rope dyeing and sizeing have to be done separately while in slasher dyeing, the dyeing and sizing can be done simultaneously.

Rope dyeing technique is more popular in the America region. It is suitable for mass production. And because of its possible non stop dyeing advantage, rope dyeing gives better shade consistency.

Indigo Dyeing Machine wetting

In absence of strong demands for deep (dark) dyeing of yarns, they are only pre-wetted by caustic and wetting agent the degree of dyeing depth is influenced in the second trough rinsing is done more or less by strong overflow of cold

Pretreatment process with sulphur black

In general with continuous dyeing no deep (dark) dyeing of yarn is achieved, they are often pre-dyed to a light medium grey-shade with sulphur Black.

The pre-dyeing is done is done at 80ºC/90ºC in the first wetting trough of the continuous processing plant. The second trough is used for rinsing of dye stuff

The yarn is squeezed to 70% to 80% and the rest humidity is immediately passed through the first vat.

The Dyeing Process

The sequence of dyeing for both rope & slaser are very similar, which include the following stages:

Mercerization (Optional)

Pre-Scouring

Dyeing

Squeezing

Airing

Rinsing

Finished fabric.

Pre-Scouring:

Pre-Scouring has the following functions: wetting out yarn, removing air from yarn and scouring to give cleaner yarn so that a better dyeing can be achieved.

The pre-scouring bath consists of wetting agent, caustic soda and chelating agents. Normally, a minimum of two boxes are required to give satisfactory pretreatment. The first box is the pretreatment with temperature at 85ºC to wet out the yarn. The second

Box is a cold rinsing to coon down and to decrease the yarn.

It also a common practice where at this stage optional Sulphur bottoming application is done.

Dyeing

The desired depth of Indigo on the yarn is mainly achieved by the number of dip. In general, the lower the dye bath concentration (2-4 g/l) as more dips are required, the better the fastness, and the vice versa. For a full Navy shade of about 2% pick up (based on Indigo grain), an initial dye bath will  balance itself until it is able to pick up 2% dye.

The reduce Indigo Dyeing Machine solution cannot be prepared directly in the dye baths. Its because it will take much higher quantity in caustic and hydrosulphite, and much longer tome to reduce the Indigo when the concentration of Indigo dyeing is a continuous exhaust dyeing process, a replenishing of dye and chemicals are necessary during dyeing. As a result, preparation of concentrated stock vat is necessarsy for the initial dye bath and the replenishment.

Indigo dyeing is generally carried out at room temperature, although dyeing at higher temperature has a better leveling effect. High temperature will deteriorate the reduction condition of the dye bath at much faster rate. As a result, a higher consumption of caustic and hydro.

In order to produce a consistent dyeing, control over the dye concentration, redox potential and the alkalinity of the dye bath is absolutely necessary.

Indigo Dyeing Machine
Indigo Dyeing Machine

Control during dyeing

  1. Hydrosulphite or ORP value

The content can either be checked by a vatometer, range from 1.5-2.5 g/l, or by direct titration method. The control can further be confirmed by measurement of the redox potential of the dye means of an ORP meter range from 730mv-860mv is common.

  1. Caustic soda or pH value

The content can be checked either by titration with HCl or by pH meter, generally pH ranges from 11.5-12.5.

  1. Dye concentration in dye bath

It can be checked by means of leuco solution is oxidized and the transmittance at λ max is measured. The reading can be converted into concentration in g/l by comparing with a calibration curve plot from known dye concentration.

The control figure varies from range to range, so one must establish their own set of control data.

Normal running speed is 20-25 yds/min (18-22 m/mim).

The longer   the dipping time, the better will be the penetration and the lesser will be the ring dyeing effect. Dipping time varies from 6-30seconds. The common is 20-30 sec. However, the dipping time should not exceed 60 sec. It is because there is an adverse effect where the Indigo Dyeing Machine fixed on the yarn may be redused back into the dye bath.

However, for super dark shade, beside mercerization of yarns at the pretreatment stage, bottom or topping with Sulphur Black is also a common practice further; there is a newer practice by controlling the pH with the additional of buffer to give significant ring effect which enhances darker shade.

Squeezing

The wet pick up affects the dyeing fastness to a very great extent. Higher squeeze pressure gives lower wet pick up and results in lesser surface colour and better penetration.

Rope dyeing and Looptex units have squeeze pressure from 5-10 Newtons, which can give a wet pick up as low as 60% while for slasher dyeing range have inferior fastness property than the rope dyeing range.

Hardness of the squeezing rollers should be approximately 70-75ºShore. If the squeezing rollers are too hard, slippage will occur and results in uneven yarn tension. If they are too soft, they will groove easily and results in shading.

Maintaining in a smooth surface of the squeezing roller is important. Normally the surface should be ground twice per year. When applying pressure to the squeezing mangle, make sure the mangle is not bended. Otherwise, shading will result.

Oxidation

In between dipping, airing is necessary to oxidize the dyed yarn. Usually, airing time varies from 60-120 sec, and 90 sec is common. Try to avoid long airing time, as this will create unnecessary high tension on the yarn and make the subsequent processes difficult.

Rinsing

Most dye ranges are equipped with2-3 rinse boxes. Cold rinsing is generally sufficient. For rope dyeing, the last box is used for applying re-beaming aid.

Drying

Sufficient drying capacity should be provided, otherwise high range speed cannot be achieved. Insufficient drying or unevenly dried yarn will result in weak size pick up in the case of slasher and poor re-beaming in case of rope dyeing.

Preparation of stock vat, chemicals, dye bath

Preparation of stock vat

Since the dyeing is a wet on wet process, to limit the excess amount of liquid feeding into the dyeing system, it is always advisable to make up the stock vat as concentrated as possible.

During the preparation of the stock vat, there are certain points which need to be observed. First, the vatting temperature should be about 40-45ºC. Second, stirring is to be kept to the minimum, as unnecessary stirring will introduce oxygen into the stock vat and affect the stability of the reduced vat. Third, volume and concentration of the stock vat must be kept constant for every stock vat batch, for the constant volume and concentration will ensure a consistent replenishing amount.

A typical vatting procedure is as follows:

  1. a) Make a mark on stock vat tank so that the volume is easily maintained by watching the level.
  2. b) Add require amount of dye.
  3. c) Add requires amount of NaOH, 50% liquid is preferred, as it generates lesser heat.
  4. d) Add require amount of auxiliaries, chelating agent, wetting and dispersing agent. This is optional as both our paste and grain already have a certain amount of auxiliaries built in.
  5. e) Add water to half the volume of stock vat. Stir for 5 min until the mass in the smooth slurry.

Dyes and Chemical:

  1. Vat dyes (indigo)
  2. Sulpher dyes (Black, Yellow, Green)
  3. Caustic
  4. Primasol
  5. Triplex
  6. Setamol
  7. Hydeose
  8. Sodium stone
  9. Common salt
  10. Sobitol
  11. Rucowet
  12. ASD
  13. Peroxide
  14. Acetic Acid
  15. Starch
  16. Size-ca
  17. PVA
  18. Wax
  19. Etc

Dyeing Recipe:

2% shade for indigo (blue) dyeing

Scouring

  • Caustic soda : 5 g/l
  • Wetting agent : 5 g/l
  • Squesting agent : 2 g/l

Dyeing

  • Vat (indigo) : 2%
  • Reducing agent (Hydro) : 4%
  • Caustic : 90 g/l
  • wetting : .25%

Sizing:  (for 650 Lts)

  • Starch                        : 75 kg
  • PVA : 20 kg
  • Size CA : 20 kg
  • Wax : 5 kg
  • water : 470 lts

Dyeing Recipe:

2% shade for Blue Black dyeing

Hard Bottoming

  • Sulphur Black : 45 g/l
  • Sodium Sulphide : 67.75 g/l
  • Caustic soda : 10 g/l
  • Wetting agent : 5 g/l
  • Squesting agent : 2 g/l
  • Dispersing agent : 3g/l

Dyeing

  • Vat (indigo) : 2%
  • Reducing agent (Hydro) : 4%
  • Caustic : 90 g/l
  • Wetting : .25%

Sizing:  (for 650 Lts)

  • Starch                        : 75 kg
  • PVA : 20 kg
  • Size CA : 20 kg
  • Wax : 5 kg
  • Water : 470 lts

Dyeing Recipe:

Sulphur Black dyeing

Hard Bottoming

  • Caustic soda : 40 g/l
  • Wetting agent : 5 g/l
  • Squesting agent : 2 g/l

Dyeing

  • Sulphur Black : 7%
  • Sodium Sulphide : 10.5%
  • Caustic soda : 20 g/l
  • Wetting agent : 5 g/l
  • Squesting agent : 3 g/l
  • Dispersing agent : 2g/l

Sizing:  (for 650 Lts)

  • Starch                        : 75 kg
  • PVA : 20 kg
  • Size CA : 20 kg
  • Wax : 5 kg
  • Water : 470 lts

Sizing

Natural Indigo Dyeing Machine -Sizing is a process where sizing is done to prepare the warp to with stand the weaving operation by binding together the fabric in the yarn to increase its strength by covering yarn with a thin film of size when binds the protruding fibre obtain smooth surface

  • To improve abrasion resistance of the yarn
  • To reduce hairiness of yarn to obtain smooth surface
  • To reduce generation of static charge for polyester blend yarn.
  • To improve breaking strength of cellulose yarn from Indigo Dyeing Machine
Written By – Farid Ahmed, General Manager, Knit Dyeing Textile Ltd. Epz, Savar, Dhaka
What is Sanforizing Machine? What is Sanforized Denim?

What is Sanforizing Machine? What is Sanforized Denim?

Sanforizing Machine

Details in Sanforizing/Finishing machine

  1. Machine Name : Denim sanforizing / finishing range.
  2. Country origin : Morrision, USA
  3. Model No. : Serial No. 295
  4. No. of machine : 01
  5. Speed of the machine : 12 meters / minute (Stretch / Lycra fabric)

: 25 meters  / minute (Normal fabric ie Non stretch)

  1. Production capacity per day : 22.4X1350X.95)=27216 Mts (Considering the product mix 20% stretch fabric and 80% non stretch fabric)

Down Time :

  1. Start time 30 min.
  2. Shut down time 1 hour (Cleaning and cool down the sanfor belt.)

The sequence of the Sanforizing/Finishing Machine

Feed in Grey fabric

Singing

Finishing

Drying

Sanforizing

Batching

Different type of finished fabric

Operation staff for weaving section:

  • Manager
  • Asst. Manager
  • Sr. Executive
  • Executive
  • Supervisor
  • Operator
  • Asst. Operator
  • Helper

Woven Fabric

The beam fitter’s checks the fabric for:

  • Any wrong or broken design
  • Any wrong drawing and denting
  • Fabric width, warp, weft density
  • Any other cloth defects

Any fault found in the fabric is corrected over the beam and then handed over operators for normal running for all types of fabric the first of fabric is send to quality control department for subsequent parameter test upon getting to Quality Approval from QAD the operator start machine for bulk production.

Different type of grey fabric

Conclusion

In growing market for casual & leisure wear, Denim fabrics represent a very dominant market share. The annual global production of Denim fabric is estimate at about 3 billion square meters. The production growth rate is calculated at about 3%.

Up until now approximately 80% of the total production of Denims has been based on “classic fabrics” like blue/white, blue/blue, blue/black or black/black fabrics.

As in other branches of the textile industry, the production of Denim worldwide is following fashion trends.

There is currency a tremendous increase in market demand for lighter weight fabric, for fabrics with increased softness, fabric with a more elegant drape or fabrics with a “different touch”

To satisfy these trends, the demand for ring spun yarns has undergone enormous growth over the last few years.

In addition special yarns-such as slub yarns have been different developed to create fabrics which offer a different appearance & new aesthetics

A huge variety of garment wash processes have been developed, and garment dye have been introduced to produce colored Denims with special effects.

Besides the efforts already mentioned, fiber blends have become interesting for the manufacturer and consumers.

For example fiber blends specially blends of cotton and cellulose fibers chance to cross borders linked to the characteristics of different spinning systems.

Finally all these activities were targeted to create fabrics with unique characterizes or properties

Written By – Farid Ahmed, General Manager, Knit Dyeing Textile Ltd. Epz, Savar, Dhaka
List of Garments Quality Assurance Tester and Test

List of Garments Quality Assurance Tester and Test

Quality Assurance Tester

The different type of quality assurance tests performed in the laboratory at different steps for denim fabric production of Auto Denims Ltd are as follows:

  • Sample Fabric analysis.
  • Yare quality evaluation
  • Greige fabric tests
  • Finished Fabric tests.

Operation staffs for QA tests processes includes:

  • Incharge, quality assurance,
  • QA Executive
  • Laboratory Assistant
  • Laboratory Helper

Equipment Used

Tools & accessories

  • GSM (circular) Cutter
  • Weighting Balance
  • Rubber Plate
  • Scissors
  • Pick glass
  • Needle
  • Calculator
  • T-Set
  • Inch Tape
  • Marker
  • Shrinkage Scale, etc.

Materials /Chemicals Used

  • Yarn and Produced denim fabric
  • Hydrose
  • Caustic
  • Acetic Acid
  • Sodium bi Sulphate
  • Bleaching Powder
  • Desize Chemicals
  • N Dimethylformamide

Sample Fabric Analysis

Equipment Used                               : Thread Counter, Needle, Electric balance and scale.

Equipment Manufactured by          : James H. Heal & Company, Halifex, England.

Person responsible                            : QA Executive Or Laboratory assistance.

Procedure                                          :

  • Check Number of ends & picks per inch by thread counter
  • Pull out some threads from both the warp and weft side and determine warp and weft count. Then calculate fabric weight
  • checks weave design & direction.

Yarn Quality Evaluation

For yarn quality evaluation following parameters are taken into consideration:

  • Count
  • Thick & Thin Place
  • Slub
  • Neps
  • Yarn Sterngth
  • CV%

Procedure                             :

  • Every lot is accompanied by a yarn quality report.The yarn lot is accepted or rejected by evaluating this report
  • Yarn quality of each lots is checked using random Sampling by machines available in Padma Textile     mills Ltd.

Greige Fabric Testing

A greige fabric sample from each lot is taken after weaving and necessary identification information is written on it by marker. Then construction, greige GSM & width of the sample are measured. Samples from a no. of lots are sewn and desize together. After desizing, sample s are dried and condition and again the construction, greige GSM & width, Shrinkage, skew are measured. The results are document in the lab test report.

This report is send to weaving department and to the factory manager.

Following are the applicable type of quality control tests for finished fabric

  • Oz/Yd2 (Ounce per square yard) /GSM (Grams per square meter)
  • Width
  • Dimensional Stability (Shrinkage)
  • Skew
  • Shade/Colour Continuity
  • Tailing and Listing
  • Crocking/Rubbing
  • Wash Fastness
  • Water Fastness
  • Colour Fastness to Perspiration
  • Light Fastness
  • Abrasion Resistance
  • Tensile Strength
  • Tear Strength
  • Seam Slippage.

Oz/Yd2 (Ounce per square yard) /GSM (Grams per square meter)

Equipment Used                               : GSM (circular) Cutter.

Equipment Manufactured by          : James H. Heal & Company, Halifex, England.

Person responsible                            : Laboratory assistance.

Procedure                                          : Cut out 3 sample pieces with circular cutter from the fabric and after conditioning weight them by electronic balance. Calculate their average weight and convert it into oz/yd2 or GSM

Performance Standard                     : According to the customer’s requirement.

Width Check

Equipment Used                               : Measuring Tape.

Equipment Manufactured by          :Not applicable.

Person responsible                            : Laboratory assistance.

Procedure                                          : Measure the width of fabric (the distance between two edges)

Performance Standard                     : According to the customer’s requirement.

Dimensional Stability

Equipment Used                               : Wastcator

Equipment Manufactured by          : James H. Heal & Company, Halifex, England.

Person responsible                            : Laboratory assistance.

Procedure                                          : After domestic wash tumble dry (low or high)

Performance Standard                     : Target shrinkage (length & width: Both are 0 to -3% for 100% cotton. 0 to -3% & -8 to -12% for cotton + spandex fabric)

Skew

Equipment Used                               : ‘T’ Set.

Equipment Manufactured by          : Not applicable

Person responsible                            : Laboratory assistance.

Procedure                                          : Mark the fabric in weft direction with the help of T-set and then after desizing, drying & conditioning check the displacement of weft. Calculate the skew by converting this displacement in percentage of fabric width

Performance Standard                     : Up to 1% skew can be allowed.

Shade/Color Continuity

Equipment Used                               : Not applicable.

Equipment Manufactured by          : Not applicable.

Person responsible                            : Laboratory assistance.

Procedure                                          : During finished fabric inspection the operator cuts a full with sample strip of 12 inches length from each roll. Take sample pieces of 12X6 inch dimension from each of the strips cut for a work order and make a blanket to check the shade or color continuity after enzyme bleach washes.

Performance Standard                     : Shade approved by the customer.

 

Some Quality Standard Specification

     
     
     
    Standard DS-1
     
  3.5to 3.9 Oz/yd2 100% Cotton Indigo Denim 
     
 Physical Tests  
 TEST NO.TEST DESCRIPTIONTEST METHODMINIMUM REQUREMENT
 1Tensile Strength (Alphatens) [length & width]ASTM D-5034: GRABWarp: 30 lbs. Weft: 25 lbs
 2Elmendorf Tearing Strength [length & width]ASTM D-1424Warp: 2.2 lbs. Weft: 2 lbs
 3Seam Strength (Alphatens) [length & width]ASTM D-434Warp: 15 lbs. Weft: 15 lbs
     
 Dimensional Stability & Durability Tests 
 TEST NO.TEST DESCRIPTIONTEST METHODMINIMUM REQUREMENT
 1Machine Washing (Washcator)AATCC-135Length: 0 to -3 %, Width: 0 to -3 %
     
 Color Fastness Tests 
     
 TEST NO.TEST DESCRIPTIONTEST METHODMINIMUM REQUREMENT
 1Light FastnessISO 105-B02: 19884
 2Wash Fastness (Gyro wash)ISO 105-C06: 50 degree CColor Change: 4C                  Color Staining: 3S
 3Sweat Fastness (Perspprometer & Carbolite)ISO 105 E 04Color Change: 4C                        Color Staining: 3S
 4Rubbing Fastness (Crocometer)AATCC 8Dry: 3                                            Wet: 1-2
     
     
     
 Standard DS-2  
     
  4 to 5.9 Oz/yd2 100% Cotton Indigo Denim 
     
 Physical Tests  
 TEST NO.TEST DESCRIPTIONTEST METHODMINIMUM REQUREMENT
 1Tensile Strength (Alphatens) [length & width]ASTM D-5034: GRABWarp: 45 lbs. Weft: 35 lbs
 2Elmendorf Tearing Strength [length & width]ASTM D-1424Warp: 3.5 lbs. Weft: 3 lbs
 3Seam Strength (Alphatens) [length & width]ASTM D-434Warp: 18 lbs. Weft: 20 lbs
     
     
 Dimensional Stability & Durability Tests 
 TEST NO.TEST DESCRIPTIONTEST METHODMINIMUM REQUREMENT
 1Machine Washing (Washcator)AATCC-135Length: 0 to -3 %, Width: 0 to -3 %
     
 Color Fastness Tests 
     
 TEST NO.TEST DESCRIPTIONTEST METHODMINIMUM REQUREMENT
 1Light FastnessISO 105-B02: 19884
 2Wash Fastness (Gyro wash)ISO 105-C06: 50 degree CColor Change: 4C                  Color Staining: 3S
 3Sweat Fastness (Perspprometer & Carbolite)ISO 105 E 04Color Change: 4C                        Color Staining: 3S
 4Rubbing Fastness (Crocometer)AATCC 8Dry: 3                                            Wet: 1-2
     
     
     
     
     
    Standard DS-3
     
  6.0 to 7.9 Oz/yd2 100% Cotton Indigo Denim 
     
 Physical Tests  
 TEST NO.TEST DESCRIPTIONTEST METHODMINIMUM REQUREMENT
 1Tensile Strength (Alphatens) [length & width]ASTM D-5034: GRABWarp: 75 lbs. Weft: 55 lbs
 2Elmendorf Tearing Strength [length & width]ASTM D-1424Warp: 5 lbs. Weft: 4 lbs
 3Seam Strength (Alphatens) [length & width]ASTM D-434Warp: 24 lbs. Weft: 25 lbs
     
 Dimensional Stability & Durability Tests 
 TEST NO.TEST DESCRIPTIONTEST METHODMINIMUM REQUREMENT
 1Machine Washing (Washcator)AATCC-135Length: 0 to -3 %, Width: 0 to -3 %
     
 Color Fastness Tests 
     
 TEST NO.TEST DESCRIPTIONTEST METHODMINIMUM REQUREMENT
 1Light FastnessISO 105-B02: 19884
 2Wash Fastness (Gyro wash)ISO 105-C06: 50 degree CColor Change: 4C                  Color Staining: 3S
 3Sweat Fastness (Perspprometer & Carbolite)ISO 105 E 04Color Change: 4C                        Color Staining: 3S
 4Rubbing Fastness (Crocometer)AATCC 8Dry: 3                                            Wet: 1-2
     
     
     
 Standard DS-4
     
  8.0 to 9.9 Oz/yd2 100% Cotton Indigo Denim 
     
 Physical Tests  
 TEST NO.TEST DESCRIPTIONTEST METHODMINIMUM REQUREMENT
 1Tensile Strength (Alphatens) [length & width]ASTM D-5034: GRABWarp: 90 lbs. Weft: 60 lbs
 2Elmendorf Tearing Strength [length & width]ASTM D-1424Warp: 5.5 lbs. Weft: 4.3 lbs
 3Seam Strength (Alphatens) [length & width]ASTM D-434Warp: 28 lbs. Weft: 30 lbs
     
 Dimensional Stability & Durability Tests 
     
 TEST NO.TEST DESCRIPTIONTEST METHODMINIMUM REQUREMENT
 1Machine Washing (Washcator)AATCC-135Length: 0 to -3 %, Width: 0 to -3 %
     
 Color Fastness Tests 
     
 TEST NO.TEST DESCRIPTIONTEST METHODMINIMUM REQUREMENT
 1Light FastnessISO 105-B02: 19884
 2Wash Fastness (Gyro wash)ISO 105-C06: 50 degree CColor Change: 4C                  Color Staining: 3S
 3Sweat Fastness (Perspprometer & Carbolite)ISO 105 E 04Color Change: 4C                        Color Staining: 3S
 4Rubbing Fastness (Crocometer)AATCC 8Dry: 3                                            Wet: 1-2
     
     
     
     
 Standard DS-5  
     
  10.0 to 11.9 Oz/yd2 100% Cotton Indigo Denim 
     
 Physical Tests  
 TEST NO.TEST DESCRIPTIONTEST METHODMINIMUM REQUREMENT
 1Tensile Strength (Alphatens) [length & width]ASTM D-5034: GRABWarp: 95 lbs. Weft: 65 lbs
 2Elmendorf Tearing Strength [length & width]ASTM D-1424Warp: 5.8 lbs. Weft: 4.5 lbs
 3Seam Strength (Alphatens) [length & width]ASTM D-434Warp: 30 lbs. Weft: 32 lbs
     
 Dimensional Stability & Durability Tests 
     
 TEST NO.TEST DESCRIPTIONTEST METHODMINIMUM REQUREMENT
 1Machine Washing (Washcator)AATCC-135Length: 0 to -3 %, Width: 0 to -3 %
     
 Color Fastness Tests 
     
 TEST NO.TEST DESCRIPTIONTEST METHODMINIMUM REQUREMENT
 1Light FastnessISO 105-B02: 19884
 2Wash Fastness (Gyro wash)ISO 105-C06: 50 degree CColor Change: 4C                  Color Staining: 3S
 3Sweat Fastness (Perspprometer & Carbolite)ISO 105 E 04Color Change: 4C                        Color Staining: 3S
 4Rubbing Fastness (Crocometer)AATCC 8Dry: 3                                            Wet: 1-2
     
     
     
     
     
 Standard DS-6
     
  12.0 to 13.9 Oz/yd2 100% Cotton Indigo Denim 
     
 Physical Tests  
 TEST NO.TEST DESCRIPTIONTEST METHODMINIMUM REQUREMENT
 1Tensile Strength (Alphatens) [length & width]ASTM D-5034: GRABWarp: 100 lbs. Weft: 70 lbs
 2Elmendorf Tearing Strength [length & width]ASTM D-1424Warp: 6 lbs. Weft: 4.8 lbs
 3Seam Strength (Alphatens) [length & width]ASTM D-434Warp: 31 lbs. Weft: 34 lbs
     
 Dimensional Stability & Durability Tests 
 TEST NO.TEST DESCRIPTIONTEST METHODMINIMUM REQUREMENT
 1Machine Washing (Washcator)AATCC-135Length: 0 to -3 %,                     Width: 0 to -3 %
     
 Color Fastness Tests 
     
 TEST NO.TEST DESCRIPTIONTEST METHODMINIMUM REQUREMENT
 1Light FastnessISO 105-B02: 19884
 2Wash Fastness (Gyro wash)ISO 105-C06: 50 degree CColor Change: 4C                  Color Staining: 3S
 3Sweat Fastness (Perspprometer & Carbolite)ISO 105 E 04Color Change: 4C                        Color Staining: 3S
 4Rubbing Fastness (Crocometer)AATCC 8Dry: 3                                            Wet: 1-2
     
     
     
 Standard DS-7  
     
  14(& above) Oz/yd2 100% Cotton Indigo Denim 
     
 Physical Tests  
 TEST NO.TEST DESCRIPTIONTEST METHODMINIMUM REQUREMENT
 1Tensile Strength (Alphatens) [length & width]ASTM D-5034: GRABWarp: 105 lbs. Weft: 75 lbs
 2Elmendorf Tearing Strength [length & width]ASTM D-1424Warp: 6.5 lbs. Weft: 5 lbs
 3Seam Strength (Alphatens) [length & width]ASTM D-434Warp: 32 lbs. Weft: 34 lbs
     
 Dimensional Stability & Durability Tests 
 TEST NO.TEST DESCRIPTIONTEST METHODMINIMUM REQUREMENT
 1Machine Washing (Washcator)AATCC-135Length: 0 to -3 %,                     Width: 0 to -3 %
     
 Color Fastness Tests 
     
 TEST NO.TEST DESCRIPTIONTEST METHODMINIMUM REQUREMENT
 1Light FastnessISO 105-B02: 19884
 2Wash Fastness (Gyro wash)ISO 105-C06: 50 degree CColor Change: 4C                  Color Staining: 3S
 3Sweat Fastness (Perspprometer & Carbolite)ISO 105 E 04Color Change: 4C                        Color Staining: 3S
 4Rubbing Fastness (Crocometer)AATCC 8Dry: 3                                            Wet: 1-2
     
     
     
     
 Standard DS-8  
     
  6.0 Oz/yd2 100% Cotton Indigo Denim 
     
 Physical Tests  
 TEST NO.TEST DESCRIPTIONTEST METHODMINIMUM REQUREMENT
 1Tensile Strength (Alphatens) [length & width]ASTM D-5034: GRABWarp: 70 lbs. Weft: 55 lbs
 2Elmendorf Tearing Strength [length & width]ASTM D-1424Warp: 5.5 lbs. Weft: 4.5 lbs
 3Seam Strength (Alphatens) [length & width]ASTM D-434Warp: 18 lbs. Weft: 20 lbs
     
 Dimensional Stability & Durability Tests 
 TEST NO.TEST DESCRIPTIONTEST METHODMINIMUM REQUREMENT
 1Machine Washing (Washcator)AATCC-135Length: 0 to -3 %,            Width: 0 to -3 %
     
 Color Fastness Tests 
     
 TEST NO.TEST DESCRIPTIONTEST METHODMINIMUM REQUREMENT
 1Light FastnessISO 105-B02: 19884
 2Wash Fastness (Gyro wash)ISO 105-C06: 50 degree CColor Change: 4C                  Color Staining: 3S
 3Sweat Fastness (Perspprometer & Carbolite)ISO 105 E 04Color Change: 4C                        Color Staining: 3S
 4Rubbing Fastness (Crocometer)AATCC 8Dry: 3                                            Wet: 2
     
     
     
 Standard DS-9  
     
  3.0 to 3.9 Oz/yd2 100% Cotton S. Black Denim 
     
 Physical Tests  
 TEST NO.TEST DESCRIPTIONTEST METHODMINIMUM REQUREMENT
 1Tensile Strength (Alphatens) [length & width]ASTM D-5034: GRABWarp: 25 lbs. Weft: 25 lbs
 2Elmendorf Tearing Strength [length & width]ASTM D-1424Warp: 2 lbs. Weft: 2 lbs
 3Seam Strength (Alphatens) [length & width]ASTM D-434Warp: 15 lbs. Weft: 15 lbs
     
 Dimensional Stability & Durability Tests 
 TEST NO.TEST DESCRIPTIONTEST METHODMINIMUM REQUREMENT
 1Machine Washing (Washcator)AATCC-135Length: 0 to -3 %,                         Width: 0 to -3 %
     
 Color Fastness Tests 
     
 TEST NO.TEST DESCRIPTIONTEST METHODMINIMUM REQUREMENT
 1Light FastnessISO 105-B02: 19884
 2Wash Fastness (Gyro wash)ISO 105-C06: 50 degree CColor Change: 4C                  Color Staining: 3S
 3Sweat Fastness (Perspprometer & Carbolite)ISO 105 E 04Color Change: 4C                        Color Staining: 3S
 4Rubbing Fastness (Crocometer)AATCC 8Dry: 3                                            Wet: 1-2
     
     
     
     
     
    Standard DS-10  
     
  4.0 to 5.9 Oz/yd2 100% Cotton S. Black Denim 
     
 Physical Tests  
 TEST NO.TEST DESCRIPTIONTEST METHODMINIMUM REQUREMENT
 1Tensile Strength (Alphatens) [length & width]ASTM D-5034: GRABWarp: 40 lbs. Weft: 30 lbs
 2Elmendorf Tearing Strength [length & width]ASTM D-1424Warp:3. 5 lbs. Weft: 2.8 lbs
 3Seam Strength (Alphatens) [length & width]ASTM D-434Warp: 16 lbs. Weft: 18 lbs
     
 Dimensional Stability & Durability Tests 
 TEST NO.TEST DESCRIPTIONTEST METHODMINIMUM REQUREMENT
 1Machine Washing (Washcator)AATCC-135Length: 0 to -3 %,                      Width: 0 to -3 %
     
 Color Fastness Tests 
     
 TEST NO.TEST DESCRIPTIONTEST METHODMINIMUM REQUREMENT
 1Light FastnessISO 105-B02: 19884
 2Wash Fastness (Gyro wash)ISO 105-C06: 50 degree CColor Change: 4C                  Color Staining: 3S
 3Sweat Fastness (Perspprometer & Carbolite)ISO 105 E 04Color Change: 4C                        Color Staining: 3S
 4Rubbing Fastness (Crocometer)AATCC 8Dry: 3                                            Wet: 1-2
     
     
     
 Standard DS-11  
     
  6.0 to 7.9 Oz/yd2 100% Cotton S. Black Denim 
     
 Physical Tests  
 TEST NO.TEST DESCRIPTIONTEST METHODMINIMUM REQUREMENT
 1Tensile Strength (Alphatens) [length & width]ASTM D-5034: GRABWarp: 70 lbs. Weft:50 lbs
 2Elmendorf Tearing Strength [length & width]ASTM D-1424Warp: 4.5 lbs. Weft:3.5 lbs
 3Seam Strength (Alphatens) [length & width]ASTM D-434Warp: 20 lbs. Weft: 23 lbs
     
 Dimensional Stability & Durability Tests 
 TEST NO.TEST DESCRIPTIONTEST METHODMINIMUM REQUREMENT
 1Machine Washing (Washcator)AATCC-135Length: 0 to -3 %,                  Width: 0 to -3 %
     
 Color Fastness Tests 
     
 TEST NO.TEST DESCRIPTIONTEST METHODMINIMUM REQUREMENT
 1Light FastnessISO 105-B02: 19884
 2Wash Fastness (Gyro wash)ISO 105-C06: 50 degree CColor Change: 4C                  Color Staining: 3S
 3Sweat Fastness (Perspprometer & Carbolite)ISO 105 E 04Color Change: 4C                        Color Staining: 3S
 4Rubbing Fastness (Crocometer)AATCC 8Dry: 3                                            Wet: 1-2
     
     
     
     
 Standard DS-12  
     
  8.0 to 9.9 Oz/yd2 100% Cotton S. Black Denim 
     
 Physical Tests  
 TEST NO.TEST DESCRIPTIONTEST METHODMINIMUM REQUREMENT
 1Tensile Strength (Alphatens) [length & width]ASTM D-5034: GRABWarp: 80 lbs. Weft: 55 lbs
 2Elmendorf Tearing Strength [length & width]ASTM D-1424Warp: 5 lbs. Weft: 4.2 lbs
 3Seam Strength (Alphatens) [length & width]ASTM D-434Warp: 25 lbs. Weft: 27 lbs
     
 Dimensional Stability & Durability Tests 
 TEST NO.TEST DESCRIPTIONTEST METHODMINIMUM REQUREMENT
 1Machine Washing (Washcator)AATCC-135Length: 0 to -3 %,              Width: 0 to -3 %
     
 Color Fastness Tests 
     
 TEST NO.TEST DESCRIPTIONTEST METHODMINIMUM REQUREMENT
 1Light FastnessISO 105-B02: 19884
 2Wash Fastness (Gyro wash)ISO 105-C06: 50 degree CColor Change: 4C                  Color Staining: 3S
 3Sweat Fastness (Perspprometer & Carbolite)ISO 105 E 04Color Change: 4C                        Color Staining: 3S
 4Rubbing Fastness (Crocometer)AATCC 8Dry: 3                                            Wet: 1-2
     
     
     
     
     
 Standard DS-13  
     
  10.0 to 11.9 Oz/yd2 100% Cotton S, Black Denim 
     
 Physical Tests  
 TEST NO.TEST DESCRIPTIONTEST METHODMINIMUM REQUREMENT
 1Tensile Strength (Alphatens) [length & width]ASTM D-5034: GRABWarp: 85 lbs. Weft: 60 lbs
 2Elmendorf Tearing Strength [length & width]ASTM D-1424Warp: 5.5 lbs. Weft: 4.4 lbs
 3Seam Strength (Alphatens) [length & width]ASTM D-434Warp: 26 lbs. Weft: 28 lbs
     
 Dimensional Stability & Durability Tests 
 TEST NO.TEST DESCRIPTIONTEST METHODMINIMUM REQUREMENT
 1Machine Washing (Washcator)AATCC-135Length: 0 to -3 %,                     Width: 0 to -3 %
     
 Color Fastness Tests 
     
 TEST NO.TEST DESCRIPTIONTEST METHODMINIMUM REQUREMENT
 1Light FastnessISO 105-B02: 19884
 2Wash Fastness (Gyro wash)ISO 105-C06: 50 degree CColor Change: 4C                  Color Staining: 3S
 3Sweat Fastness (Perspprometer & Carbolite)ISO 105 E 04Color Change: 4C                        Color Staining: 3S
 4Rubbing Fastness (Crocometer)AATCC 8Dry: 3                                            Wet: 1-2
     
     
     
 Standard DS-13  
     
  12.0 to 13.9 Oz/yd2 100% Cotton S, Black Denim 
     
 Physical Tests  
 TEST NO.TEST DESCRIPTIONTEST METHODMINIMUM REQUREMENT
 1Tensile Strength (Alphatens) [length & width]ASTM D-5034: GRABWarp: 90 lbs. Weft: 65 lbs
 2Elmendorf Tearing Strength [length & width]ASTM D-1424Warp: 5.8 lbs. Weft: 4.7 lbs
 3Seam Strength (Alphatens) [length & width]ASTM D-434Warp: 28 lbs. Weft: 30 lbs
     
 Dimensional Stability & Durability Tests 
 TEST NO.TEST DESCRIPTIONTEST METHODMINIMUM REQUREMENT
 1Machine Washing (Washcator)AATCC-135Length: 0 to -3 %,                     Width: 0 to -3 %
     
 Color Fastness Tests 
     
 TEST NO.TEST DESCRIPTIONTEST METHODMINIMUM REQUREMENT
 1Light FastnessISO 105-B02: 19884
 2Wash Fastness (Gyro wash)ISO 105-C06: 50 degree CColor Change: 4C                  Color Staining: 3S
 3Sweat Fastness (Perspprometer & Carbolite)ISO 105 E 04Color Change: 4C                        Color Staining: 3S
 4Rubbing Fastness (Crocometer)AATCC 8Dry: 3                                            Wet: 1-2
     
     
     
     
 Standard DS-7  
     
  14(& above) Oz/yd2 100% Cotton Indigo Denim 
     
 Physical Tests  
 TEST NO.TEST DESCRIPTIONTEST METHODMINIMUM REQUREMENT
 1Tensile Strength (Alphatens) [length & width]ASTM D-5034: GRABWarp: 100 lbs. Weft: 70 lbs
 2Elmendorf Tearing Strength [length & width]ASTM D-1424Warp: 6 lbs. Weft: 5 lbs
 3Seam Strength (Alphatens) [length & width]ASTM D-434Warp: 30 lbs. Weft: 32 lbs
     
 Dimensional Stability & Durability Tests 
 TEST NO.TEST DESCRIPTIONTEST METHODMINIMUM REQUREMENT
 1Machine Washing (Washcator)AATCC-135Length: 0 to -3 %,                     Width: 0 to -3 %
     
 Color Fastness Tests 
     
 TEST NO.TEST DESCRIPTIONTEST METHODMINIMUM REQUREMENT
 1Light FastnessISO 105-B02: 19884
 2Wash Fastness (Gyro wash)ISO 105-C06: 50 degree CColor Change: 4C                  Color Staining: 3S
 3Sweat Fastness (Perspprometer & Carbolite)ISO 105 E 04Color Change: 4C                        Color Staining: 3S
 4Rubbing Fastness (Crocometer)AATCC 8Dry: 3                                            Wet: 1-2