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INNOVATIVE TEXTILE

FINISHING

1. LEITAT TECHNOLOGICAL CENTER

2. TEXTILE PROCESSING

3. INNOVATIVE FINISHES

4. OTHER INNOVATIVE FINISHES

INDEX

LEITAT is a Technological Research Centre in Spain, founded in 1906, that accounts for a century of experience and expertise in the textile sector.

CIT (Centre for Innovative Technology), No. 28 by the Spanish Ministry of Education and Science.

Member of the FEDIT (Spanish Federation of Institutions for Innovation and Technology).

Member of the Network of Technological Centres of the Generalitat of Catalonia. CT 04/04.

Member of the TEXTRANET: European Network of Textile Research Organizations.

TECHNOLOGICAL CENTER

TESTING

CERTIFICATION

ENVIRONMENT

R+D PROJECTS

INNOVATION AND NEW TECHNOLOGIES

TRAINING


TESTINGTESTING

R&D DEPARTMENTR&D DEPARTMENT

ENVIRONMENTENVIRONMENT PROJECTMANAGEMENT

PROJECTMANAGEMENT

• 45 Qualified Persons• 550 Equipments

• 45 Qualified Persons• 550 Equipments

• 5 Master Degrees• Spanish and

International Projects• Consulting

• 5 Master Degrees• Spanish and

International Projects• Consulting

• Strategic Reorientation• Competitiveness

Improvement• Training• Technological Watch

• Strategic Reorientation• Competitiveness

Improvement• Training• Technological Watch

EUROPEAN PROJECTS OFFICEEUROPEAN PROJECTS OFFICE

• 7 Professional Project Managers• 1 Technician• Internal EU Projects Management• Services to Companies

• 7 Professional Project Managers• 1 Technician• Internal EU Projects Management• Services to Companies

• Chemistry• Advanced Materials• Biomedicine• Industrial Development• Fast Moving Consumer Goods

• Chemistry• Advanced Materials• Biomedicine• Industrial Development• Fast Moving Consumer Goods


R&D DEPARTMENT


R&D DEPARTMENT

CHEMISTRYTextile TechnologiesSurface Treatments

Environment

Biotechnology

Analytical Chemistry

ADVANCED MATERIALSSmart Materials, Smart Textiles, Smart Systems

New Polymers, Bio Fibres

Nanotechnology

Renewable Energies

BIOMEDICINETarget Discovery

Lead Discovery

Lead Optimisation

INDUSTRIAL DEVELOPMENTIndustrial Design and Product Creation

Assistance in each phase of Product Development

Direct Manufacturing of Final Products through Additive Manufacturing Technologies, both metal and polymers

FAST MOVING CONSUMER GOODSAll types of consumer goods

R&D DEPARTMENT

TEXTILE

PROCESSING

TEXTILE PROCESSING

PretreatmentDyeing or

Printing Finishing

The factors affecting the quality of the final product include:

• Fibres

• Textile materials (type of yarn or weave)

• Dyes, Finishes

• Textile auxiliaries

• Temperature

• Time

• Machine

• Water (both quality and quantity)

The main objective of the pretreatment is to clean the textilematerials and to provide them the required quality and other specificcharacteristics.

The major operations involve:

• Desizing

• Scouring

• Mercerisation

• Carbonizing (wool)

• Chemical bleaching

• Optical brightening

PRETREATMENT

DYEING PROCESS

Stages in dyeing• First stage: Diffusion of the dye from the dyebath to the fibre

surface.

• Second stage: Adsorption of the dye on the fibre surface.

• Third stage: Diffusion of the dye to the fibre core.

• Fourth stage: Fixation of the dye on the fibre.

Factors affecting the dyeing process• Dye concentration in the dyebath.• Chemical constitution of the dye.• Molecular weight of the dye.

TEXTILE PRINTING

• Printing is the process by which a localised coloration is made on thetextile fabric.

• The printing is normally done by using dyes showing affinity to thefibre.

• On the other hand, it can be performed superficially with pigments, which could be fixed using thermocurable resins.

Printing Process

• Fabric preparation: The fabric should have uniform hydrophilicityand the surface should be free of fibres.

• Deposition of colorant on a dry textile surface: Operating in a continuos way to deposit the colorant on the fabric surface.

• Fixation of printed colour: It is possible by 3 ways - physical, physico-chemical and chemical ways.

• Elimination of thickener paste: Normally by means of washing.

PRINT PASTES

Composition– Thickener– Colorant– Auxiliaries– Chemical agents– Water

Characteristics

ViscosityHomogenityUniformity of printed colour

TEXTILE FINISHING

DEFINITION

Finishing is the process done on the fabric surface for modifyingthe appearence, feel and the behaviour.

Factors to be considered

• Finishing increases the cost of the fabric• A permanent finish will remain throughout the life of the

garment• A durable finish will remain during a part of the life of the

garment• A temporary finish will remain till it is washed• A renewable finish can be applied at home without the

need of any costly equipment

SHRINK-PROOF FINISH

Shrinking

Due to the relaxation of the tension in the fibres during the processes.

The finished fabric would be inferior in some properties.

It provokes changes in the postions of warp and weft from thepositions fixed by the weaving machine and adopts a more compact structure.

Finishing Proceses

Chemical: By applying resins, crosslinking agents.

Mechanical:

• Drying without tension

• Compression of fabric: The yarns are made to shrink as in

sanforizing.

Combined processes

CELLULOSICS

PERMANENT PRESSS

Objective

To fix the final form of the articles.By using resins

ProcessImpregnationDryingGarment manufactureCondensation and Curing

CELLULOSICS

WASH & WEAR

Based on resins or polycarboxilic acids

Properies attained

It is not necessary to press

WRINKLE RESISTANCE AND WRINKLE RELEASE

Finishing with formaldehyde

Formaldehyde can cause allergy, irritations, contact dermatitis…

Formaldehyde substitute: BTCA

Finishing with butanetetracarboxylic acid (BTCA)

Create ester bonds with cellulose.

Finishing of textile with citric acid treatment or monoester of citric acid

Create ester bonds with cellulose.

CELLULOSICS

PERFORMANCE APPAREL / MOISTURE MANAGEMENT

APPLICATION OF STAIN AND

WATER RESISTANT FINISHING

SPORTSWEAR

STAIN RESISTANT

WATER RESISTANT

MOISTURE RESISTANT

CELLULOSICS

IMPROVING COMFORT/HAND

Diapers/dress materials

ComfortHydrating agent: Aloe Vera, Vitamin A y ERelaxing agent : lavender, ion therapyPCM microcapsulesAnti-mosquito agentMoisturizing microcapsules: Aloe Vera

Plasma treatment (Diaper)Increase the absorbent properties of the internal part of the diaperIncrease the hydrophobicity of the external part of the diaper

CELLULOSICS

HIGH AND DURABLE LUSTER

Luster of textile fibers⇒ Geometrical property of transparent, cylindrical

filaments with polished surface.

Processes:

⇒ Beetling

Process applied on cotton and linen. The fabric is dampened and wound around an iron cylinder, then it is passed through a machine in which it is pounded with heavy wooden mallets.

⇒ Decating

Application of heat and pressure to set or develop lustre.

⇒ Calendaring

CELLULOSICS

FINISHES FOR SYNTHETIC FIBRES

Softening: To provide softness

Hydrophilic finish: Increases the capacity to absorb moisture (eg. under garments)

Antipilling: Avoids pilling

Antistatic finish: To avoid generation of static electricity

Fire retardants: To develop fire proof materials

Antimicrobial: (Antibacterial and Antifungus)

SYNTHETIC FIBRES

INNOVATIVE FINISHES

Antimicrobial finishes according to their mode of action:

Bacteriostatic: Products that stop the bacterial growth

Bactericide: Products that destroy the bacteria.

The antifungal agents are also classified similarly: fungistatic and fungicide.

Antimicrobial finishes according to themechanism of their action:

Migrants: Products that spread and act as a poisonfor the microorganism.

Non-migrants: Products that destroy themicroorganism when in contact with it (acting on the membrane). This type of products can be fixedchemically on the fibres using resins, etc.

ANTIMICROBIAL FINISH

Aspergillus niger

Staphylococcus aureus

Various options are available in the market for obtainingantimicrobial textiles:

Insolubilisation of the active substance in the fibre. Treatment of fibres with resins or crosslinking agents.Microencapsulation of antimicrobial agents. Surface coating of the fibres. Chemical modification with covalent bonds. Use of graft polymers, homopolymers or copolymerisation with

the fibre.


CHITOSANChitosan, the derivative of chitin, can be produced by deacetylation of chitin with concentrated sodium hydroxide.

Chitosan is antimicrobial against various microorganisms.


TRADE MARK PRODUCER NATURE OF THE POLYMER NATURE OF THE ADDITIVE

RHOVILAS ® RHOVYL Polyvinyl chloride Organic derivative

AMICOR ® COURTAULDS Acrylic Triclosan

AMICOR PLUS ® COURTAULDS Acrylic Triclosan

SILFRESH ® NOVACETA Acetate Triclosan

MICROSAFE AM ® HOECHST-CELANESE Acetate Microban B

BACTEKILLER ® KANEBO Polyester

LIVERFRESH N ® KANEBO Polyamide

LIVERFRESH A ® KANEBO Acrylic

LUFNEN VA ® KANEBO Modacrylic

Zeolite + Metallic ions

SA 30 ® KURARAY Polyester Ceramic + Metallic ions

BOLFUR ® UNITIKA Polyester Sulphur based

FV 4503 ® AZOTA-LENZING Polypropylene Add. Sanitized

CHITOPOLY ® FUJY-SPINNING Polynosic Chitosan

THUNDERON ® NIHO SANMO DYEING Acrylic, polyamide Sulpur based

ANTIMICROBIAL FIBRES


ANTIMICROBIAL FINISHES FOR TEXTILES TRADE MARK PRODUCER NATURE OF THE ADDITIVE

VANTOCIL IB ® ZENECA Polybiguanidine

ACTICIDE ® THOR Isotiazolinone

KATHON ® ROHM & HAAS Isotiazolinone

PREVENTOL ® BAYER Organic derivative

BIO-PRUF ® MORTON Quaternari ammonium

SANIGARD ® CLARIANT-SANITIZED Organic derivative/Quaternari ammonium

ANTIMICROBIAL FINISHES FOR FIBRES TRADE MARK PRODUCER NATURE OF THE FIBRE NATURE OF THE ADDITIVE

EOSY ® UNITIKA Cotton Chitosan

EASOF ® UNITIKA Cotton

UNIFRESHER ® UNITIKA Cotton

BIOSIL B 89 ® TOYOBO Polyester Dow Corning DC 5700

BIOCHITON ® ASAHI CHEM. IND. Polyurethane-polyamide Chitin

BIO-PRUF ® MORTON Multi fibres Quaternari ammonium


BIOPROCESSING

BIOTECHNOLOGY, in the textile context, is mainly referred to:

1. Textile processing with enzymes.2. Biological treatments of effluents.3. Biological devices coupled to a textile substrates.

ENZYMES are natural reaction catalysts present in all living organisms.

Their advantages compared to chemical catalysts are:

Mild reaction conditions (T, P, pH).

High specificity for the reaction type and the substrate.

Being a biological material, it does not have any adverse effects on

the environment.

Biotechnology

α Amylase

Desizing

Pectinase Catalase Peroxydase Cellulase

Scouring Bleaching Dyeing Finishing

Grey fabric Finished fabric

Desizing Stone washed BleachingFinished garment

Cellulase Laccase

DYEING

Excess of bleaching agent

Excess of dye

Better quality of end products (value added)

Reduction of pollution and residues

Reduction of cost (energy, water and rawmaterials)

Utilization of enzymes

BIOPROCESSING

LipaseEsterase

Hydroxyl groups formationon the fibre surface

Higher hydrophilicity

w/o treatment

Biotechtreatment

BIOPROCESSING OF POLYESTER

BIOSCOURING ALKALI TREATMENTBIOSCOURING ALKALI TREATMENT

Low level of agressive attack on fibres

Low weight loss because only affecting the pectin part

Softness of the fibre surface

Improved hand

No caustic residues on the fibre

BIOTECHNOLOGY FOR COTTON

Samples of correctly desized denim

Samples of incorrectly desizeddenim with visible marks

BIOTECHNOLOGY

BIOPROCESSING

Structure of cyclodextrin:Cone trunk structure with a cavity in its centre.

Inside of the cone hydrophobic.

Outside of the cone hydrophilic.

⇒ Cyclodextrin can retain hydrophobic molecules dispersed in aqueous solutions.

Applications of cyclodextrin:⇒ Pharmacology : used as recipient of formulation because the drugs are often hydrophobic.

⇒ Agro-food system : used to raise the taste of food. Introduction of flavored products inside the cavity.

⇒ Textiles : Introduction of antimicrobial, anti-odour products and perfumes.

⇒ Cosmetic : Introduction of perfumes and cosmetics.

CYCLODEXTRINS

CYCLODEXTRINS

Cyclodextrin linking to cellulose backbone

Esterification of cellulose and CD by citric acid

Plain weave cotton fabric bleached without optical brightener.

Bleached wool fabric.

β Cyclodextrin, citric acid, catalysts

Rose perfume and jasmine microcapsules

α-, β-, γ- CyclodextrinsAtmospheric plasma

CYCLODEXTRINS IN TEXTILES

Untreated and plasma treated cotton samples coated directly with cyclodextrin

Untreated and plasma treated wool samples coated directly with cyclodextrin


Untreated and plasma treated cotton samples coated with cyclodextrin using citric acid

Untreated and plasma treated wool samples coated with cyclodextrin using citric acid


Jasmine microcapsules on plasma treated cotton and wool samples coated with cyclodextrin after citric acid treatment


COTTON hydrophilic / hydrophobic

COTTON and PA antistatic

COTTON based non-wovens- oil repellent

SURFACE TREATMENTS

PLASMA TECHNOLOGY

PLASMA-ENHANCED

CHEMICAL VAPOUR

DEPOSITION (PECVD)

EFFECTS ON TEXTILE SURFACES:

NANOCOATINGS WITH DIFFERENT

PROPERTIES

HYDROPHOBICITYPrecursors: siloxanes, silanes, fluorocarbons

HYDROPHILICITY Precursors: acrylic acid, acrylamide

OLEOPHOBICITYPrecursors: fluorocarbons

OTHER PROPERTIESAntimicrobial, UV protection, fire retardant, antistatic, etc.

PLASMA

SURFACE TREATMENTS

Polyester Lyocell (Tencel ®) / Polyester (50/50)

1) Activation LPP air2) PECVD - Perfluorohexane

(C6F14)

PECVD

Contact angleSEM

Power level: 300, 600, 900 W

Time of treatment: 10, 20, 30 min.

SURFACE TREATMENTS

a) Non-treated Polyester

a) b)

b) Plasma-treated (10 min, 600 W) Polyester

SURFACE TREATMENTS

Plasma Enhanced Chemical vapour Deposition (PECVD)

Plasma Enhanced Chemical vapour Deposition (PECVD)

a) Non-treated Polyester/Cellulosic

a) b)

b) Plasma-treated (10 min, 600 W) Polyester/Cellulosic

SURFACE TREATMENTS

Spores of B. subtilis not treated with plasma

Plasma Sterilization

Spores of B. subtilis treated with plasma

SURFACE TREATMENTS

Plasma pretreatments to improve dyeability of COTTON with anti-microbial natural dyes

0

5

10

15

20

25

30

35

40

Ellagic acid Lacaic acid A Lawsone

(K/S

)cor

rWO-NTWO-Plasma

SURFACE TREATMENTS

-2.0

-1.5

-1.0

-0.5

0.0

0.5

1.0

1.5

2.0

Ácido elágico

WO-NTWO-Plasma

S

L

-2.0

-1.5

-1.0

-0.5

0.0

0.5

1.0

1.5

2.0

Ácido lacáico

WO-NTWO-Plasma

S

L

0.0

0.5

1.0

1.5

2.0

2.5

3.0

Lawsone

WO-NTWO-Plasma

S L

Antibacterial character of wool fabrics dyed with the natural dyes. (a) Ellagic acid, (b) Laccaic acid A, (c) Lawsone. Dyeing with 20% o.w.f. shade

(a) (b)

(c)

Bacteriostatic (S)Bactericide (L)

SURFACE TREATMENTS

NANOTECHNOLOGY

NANOMATERIALS

Nanoparticles

Nanotubes

Nanoporous materials

Fullerenes

Nanostructrued materials

Nanofibres

Nanocapsules

Nanothreads

NANOTECNOLOGY

PRODUCTION PROCESSES

Chemical processes

Sol-gel

Colloidal chemistry

Hydrothermic methods

Precipitation methods

Mechanical processesMilling

Pulverizing

Mechanical alloying methods

NANOPARTICLES

NANOTECNOLOGY

In-situ formation procesesLithography

Chemical vapour deposition

Spray coating

Synthesis in gas phase

Pyrolysis

Electro explosion

Laser technique

High temperature evaporation

Synthesis by plasma technique

PRODUCTION PROCESSES

NANOPARTICLES

NANOTECNOLOGY

Nanomaterials used in the textile industry

Metallic nanoparticleNanoclays

Hydrophobicity

Flame retardant

Metal-oxide nanoparticle

Self cleaning (TiO2)

UV Protection (TiO2, ZnO)

Hydrophobicity (SiO2)

Antibacterial (Ag)

Carbon nanotubes

Electrical conductivity

Heat conductivity

Abrasion resistance

High tensile strength

Nanofibre

Sound barrier

Dressing scaffold

Filtration

NANOTECNOLOGY

Anti odour and anti microbial textile

Anti odour and anti microbial textile

Nanofibre for industrial filtering

Antibacterial, sound absorption, scaffold cellular for skin

regeneration

Wicking textiles and water repellent

Selfcleaning textile (Lotus effect)

Selfcleaning textile (Lotus effect)

Properties

Ag NP

Ag NP

Carbon nanofiber

Nanofibre by electrospinning

-

Aerosol spray of NP and

polypropylene polymer

Fluorocarbon and NP

TechnologyCompany

NANOTECNOLOGY

NANOTECHNOLOGY IN TEXTILES

In recent years, crystalline ZnO and TiO2 have received much attention for their photo catalytic action.

Nanofilms of ZnO and TiO2 can easily be deposited on heat resistant surfaces like glass and silica at very high temperatures.

This can result in properties like self-cleaning, antimicrobial properties, UV protection, etc.

But the textile materials are having poor heat resistance and soalternate methods like sol-gel are being tried.

NANOTECNOLOGY

SOL-GEL TECHNIQUEThe sol-gel technique is based on the hydrolysis of liquid precursors

and formation of colloidal sols, which can be easily coated on textiles.

On the other hand, the wet gel formed, upon drying, yields porous xerogels ("dry gels").

Xerogels are stable, transparent and insoluble in water and most of organic solvents and porous solid materials.

NANOTECNOLOGY

UV PROTECTION

Sun protection creams and textiles are common choices to protectagainst UV radiation.

Several organic or inorganic UV blocking agents are now being developed to improve the UV protection function of the textiles.

The organic ones are also known as UV absorbers as they absorb the UV rays.

The inorganic ones are semiconductor oxides like ZnO, TiO2, etc., which scatter both UVA and UVB, the main cause of skin cancer.

Compared to organics, inorganic ones are now preferred due to the properties like non-toxicity, chemical stability under UV radiation, etc.

NANOTECNOLOGY

Figure 1. SEM images of undyed yarn finished with ZnO nanoparticles (1) and knitted fabric developed from this yarn (2)

YARN FINISHING

The nano ZnO finish was applied on cotton yarns with an aim to study the effect of knitting operation on the durability of nanoparticles on the yarns.

The SEM images clearly show the presence of ZnO on the yarn as well as on the fabric.

Interestingly, higher concentration of nanoparticles was observed in the fabric, which indicates that the knitting operation could induce the concentration of the particles on the surface.

It seems that the knitting process is not influential in the loading of nanoparticles, but affects significantly its morphology.

1 2

NANOTECNOLOGY

Figure 2. SEM images of dyed yarn finished with ZnO nanoparticles (1) and knitted fabric developed from this yarn (2)

YARN FINISHING

Similar trend was observed in the reactive dyed yarn and the knitted fabric elaborated from it.

But in this case, the loading of the nanoparticles was lesser as compared to the undyed yarns.

This is because of the unavailability of some functional groups for the nanoparticles due to the presence of reactive dyes.

Thus the reactive dyeing process can influence the fixation of nanoparticles, even though not very significantly.

1 2

NANOTECNOLOGY

FABRIC FINISHING (SOL-GEL)

WASHING

WASHING

DYED

DYED

Figure 3. SEM images of the nano-finished fabrics by sol-gel method: (1) undyed and unwashed, (2) undyed and washed, (3) dyed and unwashed, (4) dyed and washed

1

3 4

2

NANOTECNOLOGY

In the case of sol-gel finishing of fabrics, as expected, the nanoparticle load on dyed fabric was lesser than that of undyed fabric.

The washing process also tends to reduce the amount of nanoparticles on the surface to some extent.

Taking together the data of these two processes, washing and dyeing, it can be observed that the final nanoparticle coating of the fabric is independent of their sequence.

This indicates the robustness of the obtained material.


Figure 4. TEM images of nano-finished cotton samples: (1) undyed-unwashed and (2) after ten cycles of domestic washing.

1

2

NANOTECNOLOGY


Figure 5. SEM images of the nano-finished fabrics by sol-gel method: undyed and unwashed with low initial concentration (1) and with higher initial concentration (2)

As expected, the samples with higher initial concentrations showed a higher content of nanoparticles on the surface.

But it is noteworthy that the low initial concentration also resulted in developing a nanoparticle coating on the fabric surface.

On the other hand, the fabric with the higher initial concentration did not show a saturation of the nanoparticles showing that further loading could be possible.

21

NANOTECNOLOGY

The undyed control sample showed an UPF value of 8.85, whereas the nano-finishing has resulted in 50+ UPF values for all the unwashed and washed samples.

Even though there was a reduction in the load of nanoparticles on the fabric surface after washing, the UPF values were not affected.

In the case of dyed samples, 50+ UPF values were not achieved in any case.

UPF values increased as a function of the concentration of the sol-gel.

UPF values have improved after the washing, probably due to a morphological change of the nano-composites after washing.

UPF VALUES

48.0039.6450+50+60

41.7829.0650+50+40

35.6224.7850+50+20

28.9422.5850+50+10

-15.22-8.85Control

WashedUnwashedWashedUnwashedSol-Gel Concentration

DyedBleached

Table 1: UPF values of the unwashed and washed fabric samples before and after 10 cycles of domestic washing.

NANOTECNOLOGY

NANOTECNOLOGY

LOTUS EFFECT The lotus leaf is well known for its hydrophobicity due to the micro-buds found on its surface.

Every bud has a height of 10 to 20 microns and is separated from each other by 10 to 15 microns.

Application: Carbon nanotubes or silver nanoparticlesPlasma: Fluorocarbon coatings

Sol-gel: Tetraethyl orthosilicate (TEOS) and Tridecafluorooctyl

triethoxysilane (FAS)

NANOTECNOLOGY

SELF-CLEANING

Photocatalysis

TiO2 Nanoparticles

Nanofibre by electrospinning

NANOTECNOLOGY

Conducting fibres from synthetic polymers by theaddition of conducting polymers or carbon nanotubes

Composite of LDPE with MWCNTsPolyaniline synthesized in LEITAT

NANOTECNOLOGY

Extrusion of polymeric yarns (nanocomposite)

Twin screwed extruder

Polyethylene yarn with 10% wt carbon nanotube and pure

polyethylene yarn.

NANOTECNOLOGY

The wear resistance of original cotton: 25000 cycles at 12kPa of pressure. Carbon nanotube grafted cotton fabric: 33000 cycles.

The grafting have not improved or affected the anti-static behaviour of cotton.

Multiwall Carbon Nanotube grafting on COTTON

NANOTECNOLOGY

NANOTECNOLOGY

Carbon Nanotubes for improving mechanical properties

SEM images of CNTs on fabrics: untreated fabric (left) and pretreated with airplasma (right)

Sample realized with Jacquard machine using CNT yarn as weft

Sample realized with CNT yarn using the flat knitting machine

Sample realized with CNT coated yarn using the circular knitting machine

NANOTECNOLOGY

CNT Coating on PES Yarn

DEVELOPMENT OF BIOMATERIALS

Development of biodegradable materials like PLA from agricultural by-products as substitutes for petroleum derivatives.

Blending conventional polymers with:

Natural products and nanoparticles

BIOPOLYMERS

Bio-degradable and bio-compatible fibres frombiopolymers and blends with natural fibres

Biocomposites based on polycaprolactone

Biocomposites based on PLA

NEW POLYMERS

BIOPOLYMERS

OTHER

INNOVATIVE

FINISHES

Microcapsules

Application of microcapsules

MICROCAPSULES

Cosmetics, pharmaceutics, medicine, hygiene

Hydrating agent: Aloe Vera, Vitamin A y EAnticelulitis agent : caffeineRelaxing agent : lavender, ion therapyAromatherapyAntimicrobial agent (Chitosan Microcapsules)Anti-odour agent PCM microcapsulesPerfume microcapsules

“Shape memory polymers (SMPs) are smart materials that, as a result of an external stimulus such as temperature or moisture, can change from a temporary deformed shape, back to an original shape”.

Principle:

Integration of polyurethane fibres or a shape memory alloy, Nitinol, between the fibers which compose the textile.

Nitinol:

Composed of Nickel and titanium (Nickel titanium, NiTi).

Able to change shape according to the temperature.

Properties:

Increase comfort

(adjust to cooler or warmer temperatures)

Wrinkle-free fabric

Smart fabrics

SHAPE MEMORY FABRICS

Thermochromic dispersions

Colour to colourless fabric when temperature rise

Reappearing of colour when temperature reduce again

Body temperature control via textile colour changes

Safety guarantee

Principle:

CHROMIC PIGMENTS

Phosphorescent dispersions

Colour fabric in dark place

Fabric design

Signalization

Safety

Principle:

The energy absorbed by the

phosphorescent dispersion

is released relatively slowly

in the form of light.

PHOSPHORESCENT PIGMENTS

DIGITAL PRINTING - MEMS

Intelligent fabric incorporating MEMS and application sectors

MicroElectroMechanical Systems (MEMS) on flexible fabrics

Operational sequence in

3D printing process

PROCESS

• Thick film printing and sacrificial etching for 3D MEMS structures.

• Inkjet printing and build up of 3D MEMS structures by successive layer deposition

AIM

• Deposition of passive materials (e.g. insulator, conductor and material with good mechanical properties).

• Deposition of active materials (e.g. piezoelectric, piezoresistive).

• Deposition of encapsulation.

DIGITAL PRINTING - MEMS

Self cleaning agentsUV protecting agent (TiO2, ZnO)Anti-mosquito agentAnti-microbial agent (Chitosan Microcapsules)Anti-odour agent (Cyclodextrin)Perfume microcapsulesAnti-staining agentsHydrophobic treatments

Home Textiles

DRAPE FINISHING

FIRE RETARDANTS - EXPANDIBLES

Expandable Graphite (EG) belongs to a group of products called intumescents.

The main property of intumescents is their ability to expand when heated.

Expandable graphite can be applied in flame retardant materials and the expansion volume is up to 300-400 ml/g.

FOAM FINISHING

Foam finishing is technique to apply a foam on a textile surface to provide various functional properties.

The machine consists of a blender for water, chemicals and air to generate foam and a foam applicator.

Foam finishing can reduce the use of water in the textile industry.

Brittany Dyeing and Printing Corporationand NICE3 (National Industrial Competitiveness through Energy, Environment, and Economics) has developed a new process

REFLECTANT TAPES

The reflectant tapes are either based on microprisms fixed on clean hard surface or microspheres applied as a formulation.

HIGH SPEED SWIM SUITS

SPEEDO, OCRA, ARENA,

KIWAMI are the market leaders

OPTICALLY VARIABLE PIGMENTS

Optically variable pigments generate their color through the interference of light rays reflected from interfaces between multiple layers of materials differing in refractive index.

Passeig 22 de Juliol, 218 - 08221 Terrassa (Barcelona)Tel. +34 93 788 23 00 - Fax +34 93 789 19 06

[email protected]

innovative textile finishing

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