Cotton recycling prevents unnecessary waste and can provide a more sustainable alternative to disposal. Recycled cotton comes from sources like secondhand clothing or textile waste that is sorted by color then shredded and spun into new yarns and fabrics. The majority of recycled cotton undergoes mechanical recycling where fabrics are sorted and shredded into yarn and fiber.

1. Recycling Spinning
Waste
Assignments
Of
Submitted To Submitted By
Sumi Akter
Department of KMT
BUFT
171-018-0-135

2. Cotton recycling prevents unneeded wastage and can be a more sustainable
alternative to disposal. Recycled cotton can come from secondhand clothing
or from textile waste or leftovers which are then spun into new yarns and
fabrics. The majority of recycled cotton is claimed through
mechanical recycling. First, fabrics and materials are sorted by color. After
sorting fabrics are run through a machine that shreds the fabric into yarn and
further into raw fiber.
Recycling Spinning

3. Waste types
Wastes have further two
types: Trash: Impurities
from plant body except
the fibers. Garbage:
Impurities other than
from the plant
Further types: Naps
,Dust , Fly, Fluff , Motes ,
Strips &Noil

4. Wastage Recycling Process
• As a consequence of the spinning, weaving and knitting
of the cotton and short-staple fiber being carded,
combed or open-end spun, working of regenerated fiber
has sprung up where regenerated fiber is intended as
knitting waste, sub-products derived from the spinning
cycle.

5. Waste removal
Waste in spinning process can be removed in following sections:
Blow room
Carding
Drawing frame
Combing

6. Recycled Spinning Process

7. Sources of textile
waste
Mainly textile waste comes from household sources.
The average lifetime of any clothing is deemed to be
for about 3 years,
Textile wastes also arise during yarns and fabric
manufacturing, apparel-making processes and from the
retail industry. They are the post-industrial waste. Apart
from these textile wastes other wastes such as PET
bottles etc. are also used for recycling polyester fiber.
Textiles for recycling are generated from two primary
sources. These sources include:
1. Post-consumer, including garments, vehicle
upholstery, household items and others.
2. Pre-consumer, including scrap created as a by-
product from yarn and fabric manufacture, as well as
the post-industrial scrap textiles from other industries.

8. Recycling methods
• Physical recycling
• Chemical recycling
• Material Recycling Technology
• Thermal Recycling Technology
• Chemical Recycling Technology

9. Recycling Methods
Physical Recycling- Physical Recycling Manufacturing waste and post-
consumer products are reprocessed into new products using process or
commingled plastics waste processing. Due to its simpler, cheaper and
more environmentally friendly process, physical recycling is more
favorable than chemical recycling.
Chemical Recycling- Chemical recycling is to convert high
molecular weight polymers into low molecular weight
substances. The obtained substances can be used as the
reactants for preparations of other chemicals and polymers.
Recycling of textile waste can serve as a means of providing
solutions to many economic, environmental and social issues.

10. Recycling Methods
Thermal Recycling Technology: Recycling is intended
to recover heat energy generated from the incineration of
fiber wastes as thermal or electrical energy.
Material Recycling Technology: Material
recycling recovers polymers from fibers and at
present, the idea of transforming polyethylene
terephthalate (PET) into fibers is most economical
and widely used for practical purposes.

11. Chemical Recycling
Technology
Chemical recycling technology:
Chemical recycling recovers monomers
from waste fibers by polymer
decomposition. Impurities can be easily
removed from recovered monomers, so
their quality will be made exactly equal
to virgin monomers.

12. Benefits of Textile Recycling
•Reduces the amount of waste sent to landfills and incinerators
•Conserves natural resources such as timber, water and minerals
•Increases economic security by tapping a domestic source of materials
•Prevents pollution by reducing the need to collect new raw materials
•Saves energy
•Supports American manufacturing and conserves valuable resources
•Helps create jobs in the recycling and manufacturing industries in the United States.

13. Cotton wastes in spinning mill
Broken ends of sliver, lap, web, and filter stripping from draw frame, roving frame,
ring spinning frame, and rotor spinning frame are known as clean waste, having more
than 95% of good fiber. Comber and roving wastes’ good fiber ratio is around 95–
97%. Wastes generated in blow room machines, and cards are dirty wastes with 35–
55% good fiber ratio. Besides, another dirty waste, flat and filter stripping waste, has
a higher amount of good fiber (65–80%). As the waste fibers are processed in
different number of machines and therefore stressed fibers, their good fiber content
is less than virgin fibers. For this reason, spinners prefer to feed the waste fibers into
normal spinning.

14. Yarn Waste Recycling Machine

17. Impact of textile waste
on environment
• This amount of waste has
detrimental effects on
our environment. While some
clothing is donated and recycled,
the majority of textile
waste heads to our landfills
where they release greenhouse
gases and leach toxins and dyes
into the surrounding soil and
water.

18. End of the slide
Thank you