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CELLULOSE ACETATE
PREPARED BY –
BINIYA ARAKKAL
TEXTILE SCIENCE FACULTY
INSTITUTE OF DESIGN & TECHNOLOGY
SURAT
Unit 8
Introduction
 The cellulose acetate are not pure cellulose compounds
like rayon.
 Cellulose acetate are the acetate ester compounds of
cellulose.
 The cellulose acetate fibres are of two types – Acetate
fibres and Triacetate fibres.
 Acetate and Triacetate are mistakenly referred to as the
same fibre.
 These fibres are similar in many of their properties but
differ in the chemical compounds.
Manufacturing
 Raw material for acetate includes cellulose
– obtained from cotton linters, wood pulp
and chemicals.
 Cellulose are shredded and mixed with
glacial acetic acid and kept aside.
 It is then mixed in machine where some
chemicals are added which cellulose turns
to liquid and changes to cellulose acetate
and made into flakes.
Manufacturing
 These flakes are dissolved in acetone.
 Solution is forced through spinneret into
warm air chamber.
 Here acetone evaporates and acetate
becomes hard into filament.
 This method is known as dry spinning.
A
C
E
T
A
T
E
Flowchartofcellulose
acetate
Properties of Cellulose Acetate
 Dimensional stability – shape and luster
controlled by adding de lusturing agent
like titanium dioxide
 Resiliency – very low resiliency so
wrinkles easily.
 Moisture regain – slightly less than cotton
 Effect of temperature – acetate is a
thermoplastic fiber and is easily softened
at high temperature.
Fabric Characteristics
 Silk like appearance possesses luxurious
and soft feel.
 Excellent draping qualities.
 Tends to collect static electricity
 Dyes well
 Relatively low strength
 Resistant to mildew and moths.
Fabric Characteristics
 Weakened by sunlight
 Moderately absorbent
 Holds in body heat
 Resistant to stretch and shrinkage
 Easily blended with other fibers.
General Care
 Usually dry cleaned. Hand wash or cool to
warm gentle machine wash can be done.
 Need to be ironed at low temperature
while damp cloth on the wrong side of
fabric.
 Acetone or nail polish remover damages
acetate fabric.
Acetate Common Fabrics
Tafetta Satin
Jersey
Acetate Common Fabrics
Brocade Of Acetate
Lace Of Acetate
Acetate Tricot
Acetate crepe
Summary
 Two types of cellulose acetate fabrics –
acetate and triacetate
 There are different types of yarns produced ,
which depends upon the holes of spinneret
 Thick or thin yarn produced according to
spinneret
 Highly absorbent and resistant to moderate
temperature
 Main advantage – they don’t shrink or
wrinkle.
Triacetate
Acetate products
THANK YOU !

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Man Made fiber -Cellulose acetate

  • 1. CELLULOSE ACETATE PREPARED BY – BINIYA ARAKKAL TEXTILE SCIENCE FACULTY INSTITUTE OF DESIGN & TECHNOLOGY SURAT Unit 8
  • 2. Introduction  The cellulose acetate are not pure cellulose compounds like rayon.  Cellulose acetate are the acetate ester compounds of cellulose.  The cellulose acetate fibres are of two types – Acetate fibres and Triacetate fibres.  Acetate and Triacetate are mistakenly referred to as the same fibre.  These fibres are similar in many of their properties but differ in the chemical compounds.
  • 3. Manufacturing  Raw material for acetate includes cellulose – obtained from cotton linters, wood pulp and chemicals.  Cellulose are shredded and mixed with glacial acetic acid and kept aside.  It is then mixed in machine where some chemicals are added which cellulose turns to liquid and changes to cellulose acetate and made into flakes.
  • 4. Manufacturing  These flakes are dissolved in acetone.  Solution is forced through spinneret into warm air chamber.  Here acetone evaporates and acetate becomes hard into filament.  This method is known as dry spinning.
  • 6. Properties of Cellulose Acetate  Dimensional stability – shape and luster controlled by adding de lusturing agent like titanium dioxide  Resiliency – very low resiliency so wrinkles easily.  Moisture regain – slightly less than cotton  Effect of temperature – acetate is a thermoplastic fiber and is easily softened at high temperature.
  • 7. Fabric Characteristics  Silk like appearance possesses luxurious and soft feel.  Excellent draping qualities.  Tends to collect static electricity  Dyes well  Relatively low strength  Resistant to mildew and moths.
  • 8. Fabric Characteristics  Weakened by sunlight  Moderately absorbent  Holds in body heat  Resistant to stretch and shrinkage  Easily blended with other fibers.
  • 9. General Care  Usually dry cleaned. Hand wash or cool to warm gentle machine wash can be done.  Need to be ironed at low temperature while damp cloth on the wrong side of fabric.  Acetone or nail polish remover damages acetate fabric.
  • 11. Acetate Common Fabrics Brocade Of Acetate Lace Of Acetate
  • 13. Summary  Two types of cellulose acetate fabrics – acetate and triacetate  There are different types of yarns produced , which depends upon the holes of spinneret  Thick or thin yarn produced according to spinneret  Highly absorbent and resistant to moderate temperature  Main advantage – they don’t shrink or wrinkle.
  • 16.