What Is Coolmax Fabric Made Of?

Table of Contents

Introduction for what is Coolmax fabric made of?

Coolmax fabric is nothing but a blend of polyester fabric created or designed by the trademark Invista. It is developed in 1986. Their goal is to cool the human screen during summer. In the very first time is used for the wearing to exercise. But nowadays it has hundreds of applications. Coolmax is made of Coolmax fiber. It is one of the best wicking fabrics.

What is Coolmax Fabric Made Of
Coolmax fabric

Coolmax fabric and its different parameter are discussing below.

What is Coolmax fabric?

The fabric which has the properties of cooling technology with permanent moisture-wicking performance is called cool max fabric.  Coolmax fabric helps to transfer the moisture from the human screen to the outside of the fabric surface. It creates an extra cool feeling to the body.  It can also mix with different fibers like wool, viscose, Tencel to create an extraordinary effect.

What is cool max fiber?

Coolmax fiber is the combination of different polyester fibers. It is the child fiber of polyester fiber. It contains some special properties as well as the parent polyester properties.

what is wicking in fabric?

Wicking is a technology by which moisture is transferred from the inner portion of fabric to the outer surface of the fabric. Coolmax fabric is the ideal example of a wicking fabric.

Coolmax fabric technology

Coolmax fiver vs normal fiber arrangement
Coolmax fiver vs normal fiber arrangement

Normal fiver is round in cross-section. So that there is no space between each other. But the Coolmax fibers are oblong/butterfly shape in cross-section. As a result, there is a space among the fibers. For this reason, this Coolmax fiber arrangement has the capability to pass the moisture with the blank space.

Feature of Coolmax fabric/ Specialty of cool max fabric

  • Having cooling technology
  • Moisture wicking performance
  • Transfer out moisture from skin surface to outer surface of the fabric and make he skin dry.
  • Create extra comfort to the human body/skin.
  • Increase durability of the fabric
  • Eco friendly
  • Capability to mix or blend to the other fiber.
  • Breathable
  • Protect the fabric from fading
  • Prevent shrinking and wrinkling.

What is Coolmax Fabric Made Of And 100% Practical Solution Of Knitting, Dyeing, Finishing, And Testing of Coolmax fabric

Here I am sharing my most recent experience which I did. I am explaining all the required parameters of knitting dyeing finishing and testing of Coolmax fabric.

Target Parameter:

Fabric typeCoolmax Interlock
Composition60% cotton + 40% Coolmax polyester
Color Name /PantoneOlive
Shade % 0.2%
Repaired  Diameter 170 cm
Required GSM280
Special NoteThe special fabric needs special care

 Estimated target process flow chart of Coolmax fabric:

Knitting of Coolmax Fabric:

Imported Coolmax yarn parameter:

We imported yarn from a reputed company for this moisture-wicking fabric. I am sharing the below parameter.

Yarn count and Type30 count coolmax polyester
Yarn Composition60% cotton and 40% Coolmax polyester
Yarn BrandA Reported Company

Knitting setting Parameter of Coolmax fabric:

The setting parameter of knitting to get our target fabric are in below table.

Machine Dia and Gauge34 & 24G
Total Needle5120
Stitch length30
Machine BrandOrizio
Machine RPM10

The parameter after Knitting of cotton Coolmax blends fabric:

After completing knitting we get the fabric parameter are states below table.

Grey fabric width (Dia)208 cm open
Gray GSM240

Dyeing of Coolmax fabric with disperse and reactive dyes:

Here we have completed knitting of this Ponte Coolmax polyester fabric.  Now we have the dye the fabric. We discussing below all the flow processes of dyeing which we did for this batch.

Dyeing of Coolmax process flow Chart:

Short description of cotton fabric dyeing process flow chart:

I am giving here a short description for a better understanding of all the processes.

Batching:

Knitted fabric is collected from the knitting gray store and created a batch here. Batch means the prepared fabric to dyeable format. Knitting is done in roll to roll. Here fabric creates a rope according to the loading capacity of the dyeing machine. A batch card is also created for storing all the knitting and dyeing process parameters.

Heat Setting for this special Ponte Roma fabric:

Heat setting is the process of a starter machine to control the dimensional stability of the fabric. This process is added to control the mechanical deformation of a knitted fabric like crease mark, long mark, Fabric side twisting, etc.  This process is no need for all the fabric. It is not possible to state all the fabric types. I am giving only some of the fabric which is in my mind right now.

Heat set  is done for the fabric which is given on below table:

Fabric  TypeGSM Range
Elastane / lycra fabricAll gsm fabric
Single jersey fabric 180 and above
Fleece / terry350 and above
100% polyester fabric/ PC fabricAll gsm fabric
Special constructional fabricAll gsm fabric( Depends on target swatch)
All types of CVC fabricAll GSM (Which need polyester part dyeing)
Tightly knitted fabricAll Gsm fabric
  
Heat Setting parameter of this special Coolmax fabric and result:

Temperature      : 180’C

Over feed            : 30%

Machine speed   : 22

Padder pressure :  1st padder- 3, 2nd padder- 2

Ist batch liquid    :  Lubricant & oil remover

2nd Batch Liquid  :  Lubricant

Before GSM         :  180

After  GSM           :  325

Setting parameter nameBefore heat setSetting In stenter machineAfter heat set
Fabric diameter240280273
    

Loading to dyeing machine:

It is the 4th step of the dyeing process. Lubricant is injected into the machine for avoiding friction between the machine and the fabric surface. Then load the fabric. Cycle time, Pump pressure, Reel speed, Nozzle pressure setting is controlled here. Then rise the temperature to 80’c and run 10min. Drain and wash.

Polyester part dyeing of the Coolmax polyester fabric with disperse dyes:

Control the PH 4.5 then raise the temperature to 130’c and run 45min. Cooling and drain if the shade is ok.

Reduction Cleaning:

The unfixed disperse dyes are removed from the surface of the fabric. The unfixed dyes means the dyes which are not completely fixed with the fabric. It improves the fastness properties of the fabric.

Scouring and Bleaching:

Normally scouring and bleaching are two different processes in oven fabric. But for knitting fabric, is done in the same batch. For dyeing of Coolmax fabric, we use caustic soda and hydrogen peroxide a little bit used to scour and bleach here.

Dyeing:

A Reactive dyeing process is used here. This is one of the best sensitive fabrics. So that it needs special care to get better results. This is why we use a perfect dyeing process. The result of this fabric dyeing process is good to use. I am personally using this process in my factory for better results.

After-treatment:

In this stage, neutralization is done. Then the unfixed dyes are removed by a soaping agent. Better or high-temperature soaping will give you better fastness property. But here the dye shade% is low. So that no need to high soaping. Here core neutralizer is used to get better results. But we can also use only ascitic acid for naturalization.

Special note For dyeing of Coolmax fabric:

Over sure about the PH of dye bath during disperse dyes and other stages, Need proper heat setting. Lubricant must have to inject before loading the fabric. The cycle time range will be 2min-3min (Not below 2min).

Dyeing process of Coolmax yarn fabric step by step:

Color Name        : Olive

Batch quantity   : 10kg

Dyeing Type        : Disperse and reactive dyeing

M:L                       : 1: 10

Enzyme Type       : No

Cycle Time           : 2.5 min

Special Note :  Care full about PH and the process

Polyester Part Dyeing

Oxalic acid and anti creasing agent hot 80’c temperature

Run 10min

Drain and fill

Control Ph 4.5

Levelling of dispersing dyeing and Antecreaseing agent injects

Run 10min

Rise temperature 80’c

Color(disperse dyes) dossing 30min

Run 10min

Rise temperature 130’c Grade 0.5

Run 45min

Cooling at 80’c  Grade 0.5

Check the shade

If ok drain the dye batch

Reduction Cleaning

Dossing the soda ash lt for 10min

then rise the temperature at 80’c

rise the chemical tank temperature 80’c also

inject the hydrose

rise the temperature 95’c

run 15min

cooling at 80’c

drain

Scouring & Bleaching

Detergent + Anti-creasing agent = Inject

Temp 40c*= Fabric Load

Soda ash light  Dosing

Temperature 60c*20 Minute

Temperature 70c

Sequestering agent + H2O2 Dosing 5 Minute

Temp to  95’C & run 50 Minute

Cooling at 78’C

Sample check

If sample ok then Drain

Normal Hot 70*10

Peroxide killer  60*10 Minute

Drain

Naturalization with acid

Drain

Wash 10 min

Dyeing Viscose part

Leveling Ph check 6.20

Leveling Dosing 60c 3 Minute

Color Dosing 25 Minute

Runtime 10 minute

1st 10% Salt Dosing 15 Minute

Runtime 10 Minute

2nd 20% Salt dosing 15 Minute

Runtime 10 Minute

3rd 70% Salt Dosnig 15 Minute

Runtime 10 Minute

Salt Sample check

1st 10% Soda dosing 15 minute

Runtime 10 minute

90% Soda dosing 25 minute

Runtime 10 minute

Sample check

BD

Hot wash

Acid

Unload

Finishing Process of Coolmax fabric:

Now we completed dyeing this fabric. Now we discuss the finishing process and parameter step by step below:

Finishing flow chart of Coolmax fabric:

Finishing flow chart of Coolmax fabric:
Finishing flow chart of Coolmax fabric:

Short Description of the flow process stages for better understanding:

Slitting:

After dyeing the fabric we get it as a tube format fabric. But we have to use an open stenter and compacting machine to get better result. So that the fabric needs to open. This is why we use this machine to open this fabric.

Setting parameter And result:

Machine speed40
Padder Pressure1.5
Fabric In Diameter34 Cm (Tube)
Fabric Out Diameter170 Cm ( open)

Stenter:

We dry the fabric and control the diameter, GSM, and shrinkage.  For this, we need to appropriate  setting. I am giving the setting which I did for this batch

Setting parameter of stenter:

Speed14
Diameter180
Temperature110’C
Overfeed20%
Paddler pressure3+2
After stenter 
Fabric diameter172
GSM273

Compacting:

Compacting Parameter    
Common SettingOverfeed30%   
 Speed/RPM14  
 Temp120  
 Steam Pressure30  
TopicTargetBeforesettingafter
Dia 150170 170170
Gsm280 273 290
Shrinkage    
 Tumble dryLength-3%   
 Width-3%%   
 Spiralinity2%  
Re TumbleLength-0.5%  
 width1.00%  
Spirality 0.0%   

Full dia, gsm, and shrinkage are controlled here. Better appearance and looking are done here. The overall quality of dyeing is controlled here.

I am giving the parameter which I have done for the subjective batch.

Special Note: Wash GSM =308

All the parameters are actual which I got during the process.

Now the fabric is sent to the testing lab for all the test reports.

Comments: All the finishing parameter is ok.

The testing report of Coolmax fabric:

How many Tests will be done of the fabric depending on the buyer’s requirement? This batch is done for development so that the basic testing is done here. We did the test..

Testing of Quality and fabric parameter of Coolmax fabric

How many Tests will be done of the fabric depending on the buyer’s requirement? This batch is done for development so that the basic testing is done here. We did the test.

EXPERIENT DATE: 20 October 2021

Applicant’s Name: M. K. Islam

Contact Name: M. K. Islam 

Sample Details: 

Sample Received : 18 October 2021,Time:02:00pm 

Test Period: 18 October 2021 to 20 October 2021 

Turn Around Time : 03 Day’s 

No of Sample Received : Two (02) Meter 

Sample Description & Color  Name : Knitted Interlock Fabric Sample Marked as  (A) in Color Olive 

Style Name : CEL COOLMAX INTERLOCK 

Fiber Declaration : 60% Cotton 40% Coolmex Polyester 

Fabric Weight : 280 GSM 

Followed Care Instruction :

Test Program : Package Test 

Buyer Name : Practical Textile

Conclusion of Test Results: 

Sl. No. Test Name Results  (A)
01 Dimensional Stability to washing Pass
02 Angular Variation After Washing Pass
03 Color Fastness to Washing Pass
04 Color Fastness To Rubbing Pass
05 Color Fastness To Water Pass
06 Color Fastness to Perspiration Pass
07 Pilling Resistance (ICI BOX Method) Pass
08 Mass per unit area Pass

TEST RESULTS OF COOLMAZ FBRIC 

01. Dimensional Stability To Washing 

Test Method : NF EN ISO 5077/6330/3759 

Wash Condition: Normal Program, Machine wash @40ºC, Tumble dry, Used Front loading washing Machine Wascator with 15.4gm  ECE reference Detergent, 4gm Sodium Per borate and 0.65gm TAED Solution With 2 Kg Load. 

Sample (A) After Three Wash
Direction Result Client Requirement
Length -0.5%±5%
Width -1.0% 

Remark: (+) Means Extension And (-) Means Shrinkage 

02. Angular Variation After Washing 

Test Method: ISO16322-1: 2005 

Wash Condition: Normal Program, Machine wash @40ºC, Tumble Dry, Used Front loading washing Machine Wascator with 15.4gm  ECE reference Detergent, 4gm Sodium Per borate and 0.65gm TAED Solution With 2 Kg Load. 

Sample (A) Result (After Three Wash) Client Requirement
Spirality 0.5% 5%

03. Color Fastness To Washing 

Test Method: NF EN ISO 105 CO6-A2S :2010 

Test Condition: Temperature at 40 degree, Time 30 min, Detergent 4g/l ECE,1 g/l Sodium Per borate With 10 Pcs Steel Balls 

Sample (A) Result Client Requirement
Color Change 4
Color Staining 3-4
-Acetate 4
-Cotton 4
-Nylon 4
-Polyester 4
-Acrylic 4-5
-wool 4-5

04. Color Fastness To Rubbing 

Test Method: NF EN ISO 105 X12 :2016 

Test Condition: As Received Stage

Sample (A) Result Client Requirement
Dry Rub 4-5 3-4
Wet Rub 3-4 3

05. Color Fastness To Water 

Test Method: NF EN ISO 105 E01:2013 

Test Condition: Temperature at 37±2 degrees, Time 4 hours. 

Sample (A) Result Client Requirement
Color Change 4
Color Staining 3-4
-Acetate 4
-Cotton 4
-Nylon 4
-Polyester 4-5
-Acrylic 4-5
-wool 4-5

06. Color Fastness To Perspiration 

Test Method: NF EN ISO 105 E04:2013 

Test Condition: Temperature at 37±2 degree, Time 4 hours. 

Sample (A) Result Client Requirement
Acid Alkaline
Color Change 4
Color Staining 3-4
-Acetate 4
-Cotton 4
-Nylon 4
-Polyester 4-5 4-5
-Acrylic 4-5 4-5
-wool 4-5 4-4

07. Resistance Of Pilling (ICI BOX Method) 

Test Method: NF EN ISO 12945-1:2020 

Wash Condition: After Three Wash (ISO 6330, Normal Program@40ºC, Tumble dry)

Sample (A) Result Client Requirement
After 14, 400 Cycle, 4hrs
Grade 4
Note: Fuzzy Effects were observed

08. Mass Per Unit Area 

Test Method: NF EN ISO 3801: 1977, method 5 

Test Stage: As Received Stage 

Sample (A) Result Client Requirement 
Average 293.8 g/m2280 g/m2 (±5%)

Conclusion:

I am sharing here my full Coolmax fabric made of yarn to fabric knitting, dyeing, finishing process with a flow chart. A complete practical Gide line is available here. Of course, everyone can ask me any process-related question in the comment section. I will answer the entire question.  As a textile engineer, I think I can solve the problems from my 10years of practical experience.

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