Mr Gurudas Aras, Director, A.T.E. Enterprises made a presentation on "Technological advancements in technical textiles" at the inaugural session of the Techtextil International Conference, Mumbai on 21 November 2019. The presentation mainly focused on the most relevant technological developments in technical textiles in the Indian context today and covered 'sustainability', 'durability', and 'functionality' aspects of the business. The presentation covered products like flushable and bio-degradable wipes, textile reinforced concrete, thermoplastic UD tapes for automobiles and coating and lamination for special applications respectively. Click here to view the presentation.
Flocking is defined as the application of fine particles to adhesive coated surfaces. Nowadays, this is usually done by the application of a high-voltage electric field. In a flocking machine the "flock" is given a negative charge whilst the substrate is earthed. Flock material flies vertically onto the substrate attaching to previously applied glue.
Quality is a relative term. It means customer needs is to be satisfied. Quality is of prime importance in any aspect of business. Customers demand and expect value for money. As producers of apparel there must be a constant endeavor to produce work of good quality. To assess the quality of textile product Textile Testing is very important work or process. Testing In response to ever-changing governmental regulations and the ever-increasing consumer demand for high quality, softlines testing and textile testing help to minimize risk and protect the interest of both manufacturers and consumers. It is important that testing is not undertaken without adding some benefit to the final product.
Agrotech-Agro textiles-Textiles used in Agriculture are termed as agro textiles. They are used for crop protection, fertilisation, ... The essential properties required are strength, elongation, stiffness, and bio-degradation, resistance to sunlight and resistance to toxic environment. All these properties help with the growth and harvesting of crops and other foodstuffs. There is a growing interest in using materials which gradually degrade.
Some of the examples of agro textiles are:
Preventing erosion and paving way for afforestation in greenhouse cover and fishing nets.
For Layer separation in fields, nets for plants, rootless plants & protecting grassy areas.
As sun screens (since they have adjustable screening) and wind shields.
As packing material and in bags for storing grass (that has been mowed).
Controlling stretch in knitted nets.
Shade for basins.
Anti-birds nets.
Fabrics for sifting and separation, for the phases of enlargement of the larvae.
Materials for ground and plant water management at the time of scarcity and abundance of water.
Presentation by Dr Marwa Atef , National Research Center, Cairo, Egypt . Presented at Cairo Textile Week 2021 , the leading textiles conference in Egypt
Flocking is defined as the application of fine particles to adhesive coated surfaces. Nowadays, this is usually done by the application of a high-voltage electric field. In a flocking machine the "flock" is given a negative charge whilst the substrate is earthed. Flock material flies vertically onto the substrate attaching to previously applied glue.
Quality is a relative term. It means customer needs is to be satisfied. Quality is of prime importance in any aspect of business. Customers demand and expect value for money. As producers of apparel there must be a constant endeavor to produce work of good quality. To assess the quality of textile product Textile Testing is very important work or process. Testing In response to ever-changing governmental regulations and the ever-increasing consumer demand for high quality, softlines testing and textile testing help to minimize risk and protect the interest of both manufacturers and consumers. It is important that testing is not undertaken without adding some benefit to the final product.
Agrotech-Agro textiles-Textiles used in Agriculture are termed as agro textiles. They are used for crop protection, fertilisation, ... The essential properties required are strength, elongation, stiffness, and bio-degradation, resistance to sunlight and resistance to toxic environment. All these properties help with the growth and harvesting of crops and other foodstuffs. There is a growing interest in using materials which gradually degrade.
Some of the examples of agro textiles are:
Preventing erosion and paving way for afforestation in greenhouse cover and fishing nets.
For Layer separation in fields, nets for plants, rootless plants & protecting grassy areas.
As sun screens (since they have adjustable screening) and wind shields.
As packing material and in bags for storing grass (that has been mowed).
Controlling stretch in knitted nets.
Shade for basins.
Anti-birds nets.
Fabrics for sifting and separation, for the phases of enlargement of the larvae.
Materials for ground and plant water management at the time of scarcity and abundance of water.
Presentation by Dr Marwa Atef , National Research Center, Cairo, Egypt . Presented at Cairo Textile Week 2021 , the leading textiles conference in Egypt
Needle punch is the second-largest market segment in terms of capacity after the spunbond process segment. It is a continuously growing market with new opportunities and growing demands in its core applications like automotive, geotextiles, filtration, and home products.
For more information log on to www.ategroup.com.
This presentation is about evolution of Textile Industry from animan skin to most modern performance clothing. It gives overview of past, present & future innovations in Textile Industry.
The Impact of Technological Advancements on Elastic Webbing Production in Chi...Stk-Interlining
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Flexible packaging consumption’s rapid growth represents a $38 billion market in the global Community. As the demand in the industry continues to rise at an average of 3.5% each year, flexible materials need to meet and exceed the high expectations of consumers And the stressors of the supply chain. Increased competition between suppliers Along with government regulations translates into innovations in films that enhance product and Package performance as well as address worldwide concerns with packaging waste.
One such innovation is polymer nanocomposite technology which holds the key to future Advances in flexible packaging. According to Aaron Brody in a December, 2003 Food Technology article, “…Nano composites appear capable of approaching the elusive goal of converting plastic into a superbarrier—the equivalent of glass or metal—without upsetting regulators” (Brody, 2003). This paper will discuss how nanocomposites are made and the growth of nanocomposite materials as a function of their numerous advantages in the packaging industry today and in the future.
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Length: 30 minutes
Session Overview
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https://alandix.com/academic/papers/synergy2024-epistemic/
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Keynote at DIGIT West Expo, Glasgow on 29 May 2024.
Cheryl Hung, ochery.com
Sr Director, Infrastructure Ecosystem, Arm.
The key trends across hardware, cloud and open-source; exploring how these areas are likely to mature and develop over the short and long-term, and then considering how organisations can position themselves to adapt and thrive.
3. 3
Sustainability...what‘s going on in the world?
California bans plastic straws in full service
restaurants – unless customers request one
CNN, September 21st, 2018
4. 4
Sustainability...
A mega trend with huge impact on the nonwovens sector
What sustainability is about:
• Plastic-free environment
• Products from renewable
resources
• Biodegradable products
Why does this concern
nonwovens?
5. 5
Successful nonwoven end products
Single-usepersonal-careproducts
Durabletechnicalnonwovens
Householdandmedicalproducts
Many of them are short-lived
6. 6
Nonwoven market segments
2018: 14.85 million tonnes
0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
1. Hygiene nonwovens
2. Wipes
3. Filtration media
4. Medical textiles
Disposable
products
5. Transport
6. Building/construction
7. Home/office/furnishings
8. Geosynthetics
9. Apparel
Durable
products
1 2 3 4 5 6 7 8 9 10
Source: INDA/EDANA 2019
2018: ~ 7 million tonnes
Other
segments
10. single use
and durable
products
7. 7
Fibres used in nonwovens
Polyester fibres
Mineral fibres
Cellulosics (pulp)
Polypropylene fibres
Bico fibres
Viscose
Polypropylene yarns
Other polymers
Polyethylene
Polyester
Cotton, natural fibres
Fibre-based nonwovens
(carded, wet-laid, airlaid)
Sources - The Fabric Year and own estimate
Polymer-based nonwovens
(Spunbond and meltblown)
2018:
~14.8 million
tonnes
Only ~20% of the fibres
used in nonwovens are
bio-degradable and
from renewable
resources
9. 9
Bico fiber
The dark side of wipes (wet)
Eco-friendliness is an issue
Source: P. Mango 2018
Airlaid wipes contain
chemical binders
Most spunlaced wipes are made of
PP, PET and viscose fibre blends
Viscose/ Lyocell
Polyester
Poly-
propylene
Only a fraction is truly eco-friendly!
Thermobonded wipes contain
bico fibres
Cotton
Viscose/
Lyocell
Pulp
STD
Binder
10. 10
The solution: make eco-friendly wipes
The technology is already here!
100% cotton fibres
100% viscose fibres
pulp and regenerated
cellulose fibres
… or blends of these fibres
11. 11
The classic approach: cotton wipes
The main challenges:
• Processing fibres of different lengths
• Processing short fibres
• Handling neps
plain wipe from
comber noils
structured wipe
from virgin
cotton fibres
The solution: random card TWF-NCR
12. 12
A more unconventional approach: viscose wipes
The main challenge –
cost-efficient production
The solution – suited for conventional wipes:
roller card TWF-NC (cross lapper TWF-CHL) plain wipe 100%
viscose fibres
Crosslapped,
structured medical
wipe from 100%
viscose fibres
13. 13
A new technology: Wet-laid/Spunlaced (WLS) wipes
The main challenge:
• Mastering the new technology
• Convincing the market of this new kind of
quality wipes
The solution: Voith/Truetzschler‘s proven line
for wet-laid/spunlaced nonwovens
Plain, flushable
WLS from 80% pulp
and 20% lyocell
Structured WLS wipe
from 80% pulp and
20% lyocell
14. 1414
14
Wet-laying and spunlacing – two promising processes
Wet-laying for…
• Homogeneous nonwovens
• Multiply forming (layering)
• Using short fibres (1mm)
• Flexibility in fibre blends
Various applications
• Tea bags
• Glass mats
Spunlacing for…
• Soft handle and drapability
• Structured and perforated webs
• Multi-layer nonwovens
• Binder-free webs
Various applications
• Hygiene & medical care
• Wipes
• Filtration
15. 15
Voith/Truetzschler‘s solution : Wet-laid/Spunlaced (WLS) wipes
Working width: 3.6 mtrs
Layout for wipes with HydroFormer and AquaJet:
• Web weights : 40-70 g/m²
• Nonwoven : plain, structured or perforated
• Line speed : <= 250 m/min
Web Forming:
HydroFormer (Voith)
Web bonding:
AquaJet
Multi-drum
dryer
Master roll
winder
16. 1616
16
Technical advantages
• Increased strength compared to conventional wet-laid
wipes
• Products with unique characteristics
• Wood pulp of 1-3 mm length in combination with cotton,
viscose
• Flushable products with fibres with less than 12 mm
• Use of short fibres from 1 – 12 mm
• A broad range of fibre blends (100 % wood pulp, 100
% natural fibres, 100% synthetic fibres or mixtures)
• Multilayers of wet-laid or spunbond and wet-laid
• Structured or perforated products
Plain, flushable WLS
from 80% pulp and
20% lyocell
Structured WLS
wipe from 80% pulp
and 20% lyocell
17. 17
India in the global context
Sustainability is and will be an issue
India has held back imposing a blanket ban on single-use plastics to combat
pollution because alternatives were not immediately available.
India consumes 14 million tonnes of plastics annually
Side effects:
• we are surrounded by micro plastics
• it already entered the food chain: micro plastics is found in foods and drink
• if it enters the human body, it can be one of the causes of cancer
The world:
• 250 million tonnes of plastics are produced every year
• 8 million tonnes of plastics enter the oceans every year
• Over years a high amount crumbles into micro particles (micro plastics)
source: ET
18. 18
The Indian perspective
Do things right from the beginning
What developed countries might face:
• Product warnings on wipe packages
The Indian perspective with biodegradable wipes:
• Avoiding product bans
• Eco labels on packages of cotton, viscose and WLS wipes
• Consumer confidence world-wide
23. 23
The future of building will be textile made
TRC
0 A.D.
pop. 0.2 billion
opus caementicium
1850
pop. 1.2 billion
reinforced concrete
2017
pop. 7.5 billion
carbon concrete
5 N/mm² 500 N/mm²
tensile strength of reinforcement
2500 N/mm²
tensile strength of reinforcement
8 BN
m²/a
24x
efficiency
>5x
durability
Weft Insertion Machine – Raschel Technology
RS MSUS – G (HG) / RS MSUS – V
24. 24
Advantages
Lightweight & Design Emission & Resource Performance
• 4 times lighter
• high freedom of design
• easy to handle and cut
• up to 80% material
saving
• 6 times stronger
• 24 times efficient
• no corrosion
• high level of
prefabrication
• CO2 reduction
• save resources
• reduced transport cost
• 5x higher lifetime
25. 25
Warp knitted multi-axial multi-ply structures (non crimp fabrics)
made on multi-axial warp knitting machine COP MAX 4:
• Angles of +20 degrees to -20 degrees
• Low specific weight
• High mechanical load resistance
Applications:
• Rotor blades for wind power stations
• Moulded parts for automotive, aircraft and ship building
• Sports equipment
Multi-axial structures for fibre reinforced plastics(FRP)
26. 26
SIM.PLY: New light weight technology
for thermoplastic unidirectional (UD) tapes
High-performance spreading and impregnation line
for the production of continuous fibre-reinforced
plastics (FRP) :
• Light weight construction
• Sustainability effort for building sector (can be
recycled)
• Made up of unidirectional, continuous reinforcing
fibres
• Ideal for use in highly stressed, fibre reinforced,
light weight structures
• Can be moulded in thermal heat presses and can
be used in injection moulding system
27. 27
New technology for cost-effective fibre processing
SIM.PLY combines a completely revised spreading module with tailored impregnation technology
in a continuous, efficient processing sequence.
Modular design
Modular machine design for flexible production of
thermoplastic fibre-reinforced tapes with attractive
price-performance-ratio.
Short process time
Thermoplastic composites are easier to process and
can have much shorter cycle times than thermoset
composites, what offers significant cost benefits.
28. 28
Thermoplastic tape materials – benefits
Fibre-reinforced thermoplastics are important drivers of sustainable, reinforced,
lightweight structures
Lightweight material
Fibre-reinforced thermoplastics are about 40% lighter than
aluminium and up to 80% lighter than steel.
Recyclability
Thermoplastic composites can be recycled due to the possibility
of re-melting. In the second component life, they are widely used
for short fibre reinforced structural parts.
High mechanical performance
Fibre-reinforced thermoplastics offer a very good mechanical
performance related to density. Especially their tensile modulus,
tensile strength and impact resistance are interesting
30. 30
Value addition by coating: various techniques
Knife over roller
(foam or paste)
Knife over air
Magnoroll
Screen Coating
Direct coating
Indirect coating
1
2
3
4
5
6
31. 3131
Multi-functional head for coating
Multi-functional
(all 6 techniques in one machine)
▪ Coating
▪ Rotary screen printing
▪ Magnet roller coating
Screen printingKnife coating
Knife 1
Knife coating 2
Magnet roller indirect
Magnet
roller direct
All functions in one head
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Stenter – advancement in technology
• Roof heating helps to avoid fog at entrance and
exit because of cold air in case of PVC coating
line
Roof heating for stenter chamber
Twin Therm nozzle system
• Twin therm nozzle system has independent
radiator for top and bottom nozzles
• Different temperatures can be set for top and
bottom nozzles based on the application
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Stenter – advancement in technology
Conveyor for fabric stabilisation & stretching
• Belt execution on demand for Teflon/fibre glass finishing
• Conveyor belt, for horizontal needle chain only!
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Stenter – advancement in technology
Vertical drier
• For two-sided coating
• Stenter chain for width control
Explosion-proof stenter
• Explosion proof panels for coating application
• Highly recommended for solvent coating
• Safety for the operator from toxic fumes
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Range for finishing and coating
Outdoor awnings & indoor sunshades
Accumulator Washing Coating Drying
Stretching
Winding
IR Drying
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Coating application – sunshades
Technology: foam-coating with foam-generator
Coating Drying and Thermofixation Lamination
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High temperature application – felts
Technology: high temperature stenter (315°C) & special burners
Roller stretching
device (up to 10N) Stenter with special gas burner for high temp Suction device
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Technical felts – automotive and filtration
Technology: special coating with web tension control
Accumulator with
foam applicator
Drying
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Carbon fibres
Carbon - Prepreg-Tape Aerospace, Automotive
Technology: fibre spreading and lamination
Lamination from top and bottom
side (sandwich finishing) and
calendering at high temperature
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Membranes – active wear and weatherproof clothing
Drying & fixation of 2 step process (lamination and water repellant finishing)
Technology: lamination and fixation