report about textile fiber

1. Assignment no # 1
Textile report about fiber
identification
Name: rehan Ali
Tmm (1a)
Submitted to: sir imran raza
Linen
Microscopic test:

2.  Under the microscopic,the hair lineflaxfiber showsseveral sidedcylindrical
with fine pointedends.
 Linen,infactlooklike abamboostickhavingjointsthatresultinto alittle
unevenness.
Chemical test:
Solubility test

3.  Soluble in70%of sulphuric acidwith in a secondbecauselineniscellosicin
nature,at38*c in 20 mnutes.
Burn test:
 A cellose fiber,ittakeslonger to ignite.Itis easilyextinguishedbyblowing
onit.

4. Rayons
Microscopic test:
 Rayonfiber hasuniform diameterwithglasslike shine.ifdelusteredthen
rayonfibermarkssimilar to peper,whenviewedcrossectionallyviscose
fiber ofrayonlooksirregular.
Chamical test:
Solubility test
 Soluble in38% concentrationhydrochloric acidat24*c in5 minutes.
Burn test:

5.  Rayonburnrapidlyandleavesonlyaslightash,the burning smell is
close to the burning leaves.
Acetate
Microscopic test:

6.  The crosssectional viewhasabulbousor multiglobalappearancewith
indentations.
 These indentationappear asoccasional markings.

chemical test:
solubility test
 Acetate issoluble in100% concentrationacetic acidin5
minutesandat25*c.
Burn test:

7.  It is a proteinfiberwhichburnquicklyandcanflare evenafter
flam is removed.noashisleftby it, andis smell islike isvinegar.
Polyester
Microscopic test:
 Generally,polyesterfiber issmoothstraight.it looksround
crosssectionally,itsappearancechangesincontextofoftextureand
luster.

8. Chemical test:
Solubility tes
 Polyesterissoluble inconcentrationMetacresolat139*c andtake 5
minutes.
Burn test:
 It is a polymerproducedfrom acoal,air,waterandpetroleum
products,itburnsquicklyandshrinksawayfrom flame,may also
flare upit leavehard,darkandroundbeads.
Nylon

9. Microscopic test:
 Generally,itappearsfine, round,smooth and translucent.Sometime
it hasshiny appearance.Ifit looksdull,itwill also be dottedunder
the microscope.
Chemical test:
Solubility test
 It dissolvesinconcentration Meta cresol at139*c andit also take 5
minutes.
Burn test:

10.  It quicklyburnandshrinkflame.the beadsare hard, grayishand
uncrushable.after flameitburnslowlyandmelt.
Silk
Microscopic test:

11.  It haselliptical shape underthe microscopethe two fine andlustrous
filamentsareshownclearlylooking like transparentrode with
triangularshape.
Chemical test:
Solubility test
 Silk is dissolve in5.25%ofconcentrationsodium hypoclorite and
takes20 minutes.
Burn test:
 This proteinfiberburnslowlyandcurlsawayfromthe the flame.It
leavesdarkbeadswhichcanbe easilycrushed.

12. Wool
Microscopic test:
 Wool fiber hasirregular,roughlycylindrical,multicellularstructure
with taperedends.
Chemical test:
Solubility test
 It also dissolvesin5.25% concentrationsodiumhypochlorite and
takes20minutes.
Burn test:

13.  It is a protienic fiber burn quickly.Itsizzlesandcurlsawayfrom
the flame.Itleavesbeadsthatarebrittles,darkandeasilycrushed.
It is selfextinguishingandleavesharshashfromcrushedbeads.
Spandex
Microscopic test:
 Spandexfiberhasthe outstandingcharacteristic ofappraring like
groupsoffiber twist together.
Chemical test:
Solubility test

14.  Spandexdissolvesindiethyl formamidof100% concentrationat90*c
andtakes10minutes.
Burn test:
 It burnsand melts,butdoesnotshrinkfromthe flame.It hasa
chemical typeodor.Itsresidue isa softblackash