Friday, May 31, 2013

How to make yarn from cotton

We are human, in every moment we need dress. thousand years ago we use animals lather for our dress. but now we are gentle nation, day by day we increased moderate our dress making system. now we use many scientific system and modern machine but we always dependent on nature like thousand years ago.
      

 GARMENTS
BANGLA NEWS

                                   NOW WE WILL KNOW HOW TO MAKING A DRESS
COTTON TREE
Nature gives us many wonderful things  cotton is one of them.we get cotton from cotton trees and process cotton for yarn.


 
Cotton lot




This cotton is ready for make yarn now this cotton going to spinning factory for make yarn


YARN FROM COTTON

This is spinning machine this machine made yarn from cotton and gives us yarn for make cloth. from this step we started our dress making system.



COTTON YARN



 This is grey yarn cone. Spinning machine made this from cotton. now this yarn cone is ready for making cloth.


SIZING MACHINE





After spinning grey yarn is ready, but this yarn is not too strong for make cloth so yearn need starch for stronger. now strong yarn ready to started make cloth.


COTTON YARN AFTER SIZING


After sizing cotton ready for wiving, now this yarn will not break when started cloth making by wiving machine.



WIVING MACHINE



Wiving machine made cloth from yarn. it is a nice and sensitive system and we get grey cloth from yarn by wiving machine.(it is woven cloth making system)

Here i tell some woven fabrics name: Twill, Canvas, Sheeting, Panama canvas, HaringBone Twill, Ribstop, Otoman twill, satin ETC.



GREY FABRIC(WOVEN)



Now cloth is ready but we don't use fabric for dress after many process we will get fabric for making dress.



Desizing and singing m/c

Desizing and singing system
When we make yarn add starch with yarn for this cause grey fabric is too hard. this machine reduce starch from fabric by desizing chemicals. and remove unnecessary yarn by gas singing.after desizing wet fabric put on a batches  and rounding 6-8 hours with chemicals.



Scouring and bleaching m/c





After desizig complete fabric need scouring and bleaching. Scouring removed any disgusting dirty from fabric, like oil mark, cotton seeds spot and desizing chemicales. bleaching remove grey type color and make fabric white.(by Hydrozne peroxide , caustic soda and other bleaching chemical's).



MERCERIZING



When fabric passed bleaching and scouring system fabric will too loose and strong less. Mercerizing system gives fabric re-fete strong . this system is fabric passed in liquid caustic soda tank and hot water tank after washing by acetic acid for neutralize (caustic soda is hi power  alkali)  



Washing M/C


After mercerizing fabrics need normal wash and neutralizing washing machine do this work. and dry to fabric by steam with dry cylinder




Stenter machine

Stenter m/c layout
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After washing fabric is white, soft and nice but it is not to ready for dyeing(color). Stenter machine processed fabric for dyeing. after stenter fabrice become dry,smooth,assembled. now fabric is ready for dyeing or printing.


                                                                



 
FABRIC FOR DYEING









                                                            DYEING


SEMI CONTINUES SYSTEM(C.P.B)


Woven fabric DYEING
many kind of  woven fabric dyeing system semi continues  is one of them it is so easy, qualityful and low rejected system. dyes solution and alkali solution mix in dye bath. fabric passed in the bath and absorbed dyes and alkali solution same time two sensitive padder squeezed  fabric at a standard pressure and delivered to batches.



AFTER DYEING FABRIC ROUNDING


When dyeing is complete fabric covered by poly  for vacuum if  air touch dyed fabric, fabric will spot. in this condition fabrics batch 5-8 hour rounding a limited speed for color fixing.




 
DYED FABRIC FOR WASHING



 
WASHING MACHINE




 if fabric dyed by semi continuous system fabric need wash wash machine do this work. at first fabric passed cold water tank then hot water tank with detergent again cold water then dry and unload fabric from machine. dyeing is complete now need   finishing.





CONTINUOUS DYEING:




Continues dyeing system

Continus dyeing M/C




Continuous dyeing is another system for woven fabrics. it is nice system but risk-able . if fabric dyeing in this system washing machine and 5-8 rolling are no need. all in one this machine. fist fabric dyed then dry then fixing then washing then dry and delivered dyed fabric from machine. it is short time process but any reason machine will stopped a big amount fabric will rejected. padder,dry chamber,curig chamber,dye bath and other point.









FABRIC ON STENTER M/C

 Now dyed fabric is ready it need finishing. finishing completed by stenter machine and other finishing agent.




FINISHED FABRIC


 Now fabric finished complete it is rady for making garments. after a long process we get fabric for make garments but more process left for get readymate garments.


HERE I DESCRIBED THIS PROCESS TOO SHORTLY

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