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Swimwear Fabrics Swimwear Fabrics Basic Characteristics & Basic Characteristics & Development Development Dr. Jimmy Lam Dr. Jimmy Lam Institute of Textiles & Institute of Textiles & Clothing Clothing

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Page 1: Swimwear Fabrics Basic Characteristics & Development Dr. Jimmy Lam Institute of Textiles & Clothing

Swimwear FabricsSwimwear FabricsBasic Characteristics & Basic Characteristics &

DevelopmentDevelopment

Dr. Jimmy LamDr. Jimmy Lam

Institute of Textiles & ClothingInstitute of Textiles & Clothing

Page 2: Swimwear Fabrics Basic Characteristics & Development Dr. Jimmy Lam Institute of Textiles & Clothing

Swimwear FabricsSwimwear FabricsAgendaAgenda

Swimwear Fabric Historical DevelopmentSwimwear Fabric Historical Development Swimwear Fabric CharacteristicsSwimwear Fabric Characteristics Swimwear Material: SpandexSwimwear Material: Spandex Fiber & Fabric RequirementsFiber & Fabric Requirements Caring of Swimwear FabricsCaring of Swimwear Fabrics New Development (1): UV protectionNew Development (1): UV protection New Development (2): Competitive SwimmingNew Development (2): Competitive Swimming New Development (3): DuPont SoronaNew Development (3): DuPont Sorona

Page 3: Swimwear Fabrics Basic Characteristics & Development Dr. Jimmy Lam Institute of Textiles & Clothing

Historical Development of Historical Development of Swimsuit FabricsSwimsuit Fabrics (I)(I)

In the 1920s, swimsuits were made in pure silk, for lightness, In the 1920s, swimsuits were made in pure silk, for lightness, while racing and training costumes were made from cotton.while racing and training costumes were made from cotton.

Navy blue was the only colour option.Navy blue was the only colour option. Silk was more costly than cotton, but it had several advantages: Silk was more costly than cotton, but it had several advantages:

lightness, strength, elasticity and feel.lightness, strength, elasticity and feel. Extensive use of silk and cotton continued through 1930s and Extensive use of silk and cotton continued through 1930s and

1940s.1940s. In 1957, Australian swimmer Dawn Fraser developed a new In 1957, Australian swimmer Dawn Fraser developed a new

competitive swimsuit for Speedo- fabric with nylon.competitive swimsuit for Speedo- fabric with nylon. On the synthetics, nylon was the most favoured because of its On the synthetics, nylon was the most favoured because of its

strength, elasticity and the ease with which it took colour with strength, elasticity and the ease with which it took colour with dyed.dyed.

Page 4: Swimwear Fabrics Basic Characteristics & Development Dr. Jimmy Lam Institute of Textiles & Clothing

Historical DevelopmentHistorical DevelopmentSwimsuit Fabrics (II)Swimsuit Fabrics (II)

Nylon is light in weight, water repellent quality which Nylon is light in weight, water repellent quality which meant it was quick drying.meant it was quick drying.

With the introduction of nylon, colours other than navy With the introduction of nylon, colours other than navy began to appear. Red, royal blue were the most popular.began to appear. Red, royal blue were the most popular.

In 1972 Munich Olympic Games, Lycra was introduced. In 1972 Munich Olympic Games, Lycra was introduced. It has excellent stretch properties and good recovery and It has excellent stretch properties and good recovery and lightness. lightness.

The durability of this elastomeric fibre was not a par The durability of this elastomeric fibre was not a par with nylon. However, the high cost of Lycra was with nylon. However, the high cost of Lycra was restricted to competitive swimwear fabrics, rather than restricted to competitive swimwear fabrics, rather than all-purpose wear, in which nylon remained dominant.all-purpose wear, in which nylon remained dominant.

Page 5: Swimwear Fabrics Basic Characteristics & Development Dr. Jimmy Lam Institute of Textiles & Clothing

Today’s Swimwear FabricsToday’s Swimwear Fabrics There have been many developments in swimwear There have been many developments in swimwear

fabrics today. For example:fabrics today. For example:– Sun Select fabric from Triump allows tanning through the Sun Select fabric from Triump allows tanning through the

swimsuit; it has been designed to block harmful UV rays to swimsuit; it has been designed to block harmful UV rays to penetrate to the skin.penetrate to the skin.

– Speedo’s Scubasuit is made in a dense fabric which has a Speedo’s Scubasuit is made in a dense fabric which has a sun protection factor (SPF) of over 30, dry or wet to help the sun protection factor (SPF) of over 30, dry or wet to help the wearer practise “safe sun”.wearer practise “safe sun”.

– Triump has developed a material which is quick drying, Triump has developed a material which is quick drying, handy for swimming holidays. It is a mixture of nylon and handy for swimming holidays. It is a mixture of nylon and Lycra with a layer of Telfon, meaning water rolls off the Lycra with a layer of Telfon, meaning water rolls off the surface of the suit.surface of the suit.

Page 6: Swimwear Fabrics Basic Characteristics & Development Dr. Jimmy Lam Institute of Textiles & Clothing

Basic Characteristics (I)Basic Characteristics (I) Opacity

– i.e. not able to see through when wet (by adding acetate/nylon for liner)

Higher order of stretch and recovery– One of the most important properties of fabric that is intended

for swimwear is recoverable stretch or elasticity

– swimwear fit the figure tightly, and must be stable to elongation when wet

Higher order of resistance to abrasion

Page 7: Swimwear Fabrics Basic Characteristics & Development Dr. Jimmy Lam Institute of Textiles & Clothing

Basic Characteristics (II)Basic Characteristics (II) Higher fabric bursting strengthHigher fabric bursting strength

– used for tight-fitting beach styles, fibers and yarns are important used for tight-fitting beach styles, fibers and yarns are important Colour fastness to lightColour fastness to light

– under explore under strong sunlightunder explore under strong sunlight Colour fastness to sea and pool waterColour fastness to sea and pool water

Given the requirement for knitted fabric, what kind of Given the requirement for knitted fabric, what kind of stitch and structure are suitable for swimwear ?stitch and structure are suitable for swimwear ?

Page 8: Swimwear Fabrics Basic Characteristics & Development Dr. Jimmy Lam Institute of Textiles & Clothing

Spandex Fiber (I)Spandex Fiber (I)IntroductionIntroduction

In textiles, the man-made fibre with high degree of In textiles, the man-made fibre with high degree of elasticity used for swimwear is known as Spandex.elasticity used for swimwear is known as Spandex.

Spandex is composed of at least 85% polyurethane by Spandex is composed of at least 85% polyurethane by weight.weight.

Such fibres are generally used for their highly elastic Such fibres are generally used for their highly elastic properties.properties.

Trademarked fibres in this group are Lycra, Numa, Trademarked fibres in this group are Lycra, Numa, Sapndelle and Vyrene.Sapndelle and Vyrene.

Such fibres have, for many textile purposes, largerly Such fibres have, for many textile purposes, largerly replaced natural and synthetic rubber fibers.replaced natural and synthetic rubber fibers.

Page 9: Swimwear Fabrics Basic Characteristics & Development Dr. Jimmy Lam Institute of Textiles & Clothing

Spandex Fiber (2)Spandex Fiber (2)CharacteristicsCharacteristics

Although somewhat weak in the relaxed state, Spandex fibres can be Although somewhat weak in the relaxed state, Spandex fibres can be stretched about 500-600 percent beyond their length without breaking stretched about 500-600 percent beyond their length without breaking and quickly return to their original length.and quickly return to their original length.

The fibre, usually white and dull lustre, is readily dyed and absorbs The fibre, usually white and dull lustre, is readily dyed and absorbs very little moisture.very little moisture.

The fibre melts at 250 C and yellows upons prolonged explore to heat The fibre melts at 250 C and yellows upons prolonged explore to heat or light.or light.

Items made of Spandex can be machine washed and dried at moderate Items made of Spandex can be machine washed and dried at moderate temperatures.temperatures.

Use of chlorine bleach can produce yellowing.Use of chlorine bleach can produce yellowing. Spandex fibres are frequently covered with other fibres like nylon.Spandex fibres are frequently covered with other fibres like nylon.

Page 10: Swimwear Fabrics Basic Characteristics & Development Dr. Jimmy Lam Institute of Textiles & Clothing

Spandex Fiber (3)Spandex Fiber (3)End usesEnd uses

Spandex is used in such apparel as foundation Spandex is used in such apparel as foundation garments. Support hosiery and swimsuits.garments. Support hosiery and swimsuits.

It is light in weight and cool.It is light in weight and cool. It is resistant to deterioration from body acids It is resistant to deterioration from body acids

and it is easily laundered and quick-dryingand it is easily laundered and quick-drying

Source: Briantanna Encyclopedia 2004Source: Briantanna Encyclopedia 2004

Page 11: Swimwear Fabrics Basic Characteristics & Development Dr. Jimmy Lam Institute of Textiles & Clothing

Fibres for swimwearFibres for swimwear

NylonNylon is used for most swimwear. Man-made, nylon is strong, is used for most swimwear. Man-made, nylon is strong, abrasion-resistance and lightweight.abrasion-resistance and lightweight.

PolyesterPolyester is also strong, resilient, wrinkle resistance and is also strong, resilient, wrinkle resistance and washes easily. Best when used in blends with cotton.washes easily. Best when used in blends with cotton.

CottonCotton is a natural fibre which is strong, inexpensive and is a natural fibre which is strong, inexpensive and absorbent and comfortable in hot weather.absorbent and comfortable in hot weather.– (But it is heavier in weight and wet easily)(But it is heavier in weight and wet easily)

Elastane Elastane is a synthetic stretch fibre which is present in most is a synthetic stretch fibre which is present in most swimwear, being blended with nylon, polyester or cotton. It swimwear, being blended with nylon, polyester or cotton. It gives swimwear its stretch and resilience.gives swimwear its stretch and resilience.

Page 12: Swimwear Fabrics Basic Characteristics & Development Dr. Jimmy Lam Institute of Textiles & Clothing

Fiber and YarnFiber and Yarn

Generally, textured filament with modified into stretch Generally, textured filament with modified into stretch yarn on false twist are more appropriate for use in yarn on false twist are more appropriate for use in swimwear than spun yarn (nature fiber)swimwear than spun yarn (nature fiber)

For spun yarn, worsted system yarn is preferred over For spun yarn, worsted system yarn is preferred over woolen system for swimwear, with high twist factor woolen system for swimwear, with high twist factor (finer and stronger yarn for knitting)(finer and stronger yarn for knitting)

Page 13: Swimwear Fabrics Basic Characteristics & Development Dr. Jimmy Lam Institute of Textiles & Clothing

Swimwear Material

Speedo: P.B.T. EnduranceOne piece swimsuit from 45% polyester and 55% P.B.T. , a polyester variant, giving superior recovering properties

Page 14: Swimwear Fabrics Basic Characteristics & Development Dr. Jimmy Lam Institute of Textiles & Clothing

Fabrics for swimwearFabrics for swimwear

TricotTricot is a technique of knit which produces adequate is a technique of knit which produces adequate two-way stretch. Either smooth or structured, lustrous two-way stretch. Either smooth or structured, lustrous or matt, plain or printedor matt, plain or printed

JerseyJersey is used mainly in cotton and cotton polyester is used mainly in cotton and cotton polyester blends. Elastomeric is required for stretching and body blends. Elastomeric is required for stretching and body fitting.fitting.– (Which structure is better for swimwear, single knit or (Which structure is better for swimwear, single knit or

double knit?)double knit?) WovensWovens are mainly used for coordinated breach wear are mainly used for coordinated breach wear

items such as skirts and shirts. items such as skirts and shirts. – Can we use woven fabric for swimwear?Can we use woven fabric for swimwear?

Page 15: Swimwear Fabrics Basic Characteristics & Development Dr. Jimmy Lam Institute of Textiles & Clothing

Fabric Structure (I)Fabric Structure (I) Amongst all knitted fabrics which are not made from stretch yarns and Amongst all knitted fabrics which are not made from stretch yarns and

do not have rubber threads, the most elastic structure is 1x1 ribdo not have rubber threads, the most elastic structure is 1x1 rib Rib structure is better for swimwear (instead of plain) becauseRib structure is better for swimwear (instead of plain) because

– rib structure trends to be more opaque (without adding lining) and rib structure trends to be more opaque (without adding lining) and more dense;more dense;

– rib structure is more elastic than single jersey (single jersey can rib structure is more elastic than single jersey (single jersey can add elastic yarn to overcome it) add elastic yarn to overcome it)

Common Rib structure for swimwearCommon Rib structure for swimwear

– interlockinterlock

– swiss piqueswiss pique using stretch nylon and stretch polyester with /without spandex.using stretch nylon and stretch polyester with /without spandex.

Page 16: Swimwear Fabrics Basic Characteristics & Development Dr. Jimmy Lam Institute of Textiles & Clothing

Swimwear Knit Structure: Warp Knit Structure

Speedo: S2000One piece swimsuit from a warp knitted polyester elastane fabric with high filament polyester micro fiber yarns and finished with thermal treatment

Page 17: Swimwear Fabrics Basic Characteristics & Development Dr. Jimmy Lam Institute of Textiles & Clothing

Fabric Structure (II)Fabric Structure (II)

In whatever structure, the necessary elasticity is In whatever structure, the necessary elasticity is achieved by either laying-in or knitting-in achieved by either laying-in or knitting-in elastomeric yarn, preferably spandex over elastomeric yarn, preferably spandex over rubber because of its lighter weight.rubber because of its lighter weight.

The fabric stretch is affected by:-The fabric stretch is affected by:-– the fabric structurethe fabric structure– whether the elastomeric yarn is used in bare or whether the elastomeric yarn is used in bare or

covered formcovered form

Page 18: Swimwear Fabrics Basic Characteristics & Development Dr. Jimmy Lam Institute of Textiles & Clothing

Fabric Structure (III)Fabric Structure (III)

A covered form yarn (spandex with an outer A covered form yarn (spandex with an outer sheath of yarn) will normally restrict on its sheath of yarn) will normally restrict on its elasticityelasticity

The degree on its extension and return from The degree on its extension and return from elongation will depend on the amount of covering.elongation will depend on the amount of covering.

Page 19: Swimwear Fabrics Basic Characteristics & Development Dr. Jimmy Lam Institute of Textiles & Clothing

Caring for swimwearCaring for swimwear

AlwaysAlways warm hand wash with mild soap, rinse warm hand wash with mild soap, rinse after wear in cool water, drip dry out of direct after wear in cool water, drip dry out of direct sunlight.sunlight.

Do NotDo Not use strong detergents or bleach roll up use strong detergents or bleach roll up when wet dry clean or iron tumble dry.when wet dry clean or iron tumble dry.

AvoidAvoid contact with rough surfaces, excessive contact with rough surfaces, excessive contact with suntan lotions and oils harsh contact with suntan lotions and oils harsh chemicals present in some pools or hot spas.chemicals present in some pools or hot spas.

Page 20: Swimwear Fabrics Basic Characteristics & Development Dr. Jimmy Lam Institute of Textiles & Clothing

New DevelopmentNew DevelopmentLessons from AustraliaLessons from Australia

Apart from design, stretch and fit, new Apart from design, stretch and fit, new developments are needed for modern developments are needed for modern swimwear.swimwear.

They are Ultra-Violent (UV) protection and They are Ultra-Violent (UV) protection and reduce water friction for Olympia game reduce water friction for Olympia game (Competitive Swimming)(Competitive Swimming)

Page 21: Swimwear Fabrics Basic Characteristics & Development Dr. Jimmy Lam Institute of Textiles & Clothing

UV protection swimwear (1)UV protection swimwear (1)

The effects of UV radiation are considered to be The effects of UV radiation are considered to be cumulative.cumulative.

Apart from direct exposure to the sun, the reflection Apart from direct exposure to the sun, the reflection off the water or sand can give you increase dose of off the water or sand can give you increase dose of UV.UV.

The risk of sunburn is much greater high on a The risk of sunburn is much greater high on a mountain slope because UV increases by around 15% mountain slope because UV increases by around 15% for every 1000 meters above sea level.for every 1000 meters above sea level.

Hats sun glasses and scientifically designed fabrics for Hats sun glasses and scientifically designed fabrics for clothing provide the best protection against sun clothing provide the best protection against sun damage to skin.damage to skin.

Page 22: Swimwear Fabrics Basic Characteristics & Development Dr. Jimmy Lam Institute of Textiles & Clothing

Sun Protection (UV radiation)Swimsuit for children.The swimsuit covers all the bodyWith high percentage of Lycra

Page 23: Swimwear Fabrics Basic Characteristics & Development Dr. Jimmy Lam Institute of Textiles & Clothing

UV protection swimwear (2)UV protection swimwear (2)

Research from the University of New South Wales Research from the University of New South Wales under the Dept of Fibre Science and Textiles is under the Dept of Fibre Science and Textiles is conducted programme in sun protection, structures and conducted programme in sun protection, structures and rating for making UV protective swimwear.rating for making UV protective swimwear.

Initial work found that: Initial work found that: – Lycra fibres provide high UV rating (strong protection), Lycra fibres provide high UV rating (strong protection),

however, they never exceed 20% of fibre content.however, they never exceed 20% of fibre content.– Cotton fibres when wet (under water) decreases in UV rating Cotton fibres when wet (under water) decreases in UV rating

by as much as 50% (reduce protection)by as much as 50% (reduce protection)– Knitted fabrics will also stretch and UV rays can penetrate Knitted fabrics will also stretch and UV rays can penetrate

such open structure, especially on shoulders.such open structure, especially on shoulders.– Colour of the fabric play a significant role too.Colour of the fabric play a significant role too.

Page 24: Swimwear Fabrics Basic Characteristics & Development Dr. Jimmy Lam Institute of Textiles & Clothing

Ultraviolet Protection Factor (UPF)Ultraviolet Protection Factor (UPF) Over-exposure to solar ultraviolet radiation (UVR) can cause Over-exposure to solar ultraviolet radiation (UVR) can cause

sunburn, skin damage and increased risk of skin cancer.sunburn, skin damage and increased risk of skin cancer. Clothing provides one of the most convenient forms of Clothing provides one of the most convenient forms of

protection against UVR but not all garments offer sufficient protection against UVR but not all garments offer sufficient sun protection.sun protection.

The UPF rating indicates how effective a fabric is at blocking The UPF rating indicates how effective a fabric is at blocking out solar ultraviolet radiation. The testing is performed out solar ultraviolet radiation. The testing is performed according to Australian /New Zealand standard AS/NZ4399.according to Australian /New Zealand standard AS/NZ4399.

UPF ratings range from 15 to 50 with higher ratings UPF ratings range from 15 to 50 with higher ratings indicating more effective blocking and therefore better indicating more effective blocking and therefore better protection for the wearer of a garment made from the fabricprotection for the wearer of a garment made from the fabric

Page 25: Swimwear Fabrics Basic Characteristics & Development Dr. Jimmy Lam Institute of Textiles & Clothing

Factors affecting UPF RatingFactors affecting UPF Rating

Composition of the yarns (Polyester, cotton)Composition of the yarns (Polyester, cotton) Tightness of the weave or knit (tighter improves the Tightness of the weave or knit (tighter improves the

rating)rating) Colour (darker colours are generally better)Colour (darker colours are generally better) Stretch (more stretch lowers the rating)Stretch (more stretch lowers the rating) Moisture (many fabrics have lower ratings when wet)Moisture (many fabrics have lower ratings when wet) Condition (worn and faded garments may have Condition (worn and faded garments may have

reduced rating)reduced rating) Finishing (some fabrics are treated with UV absorbing Finishing (some fabrics are treated with UV absorbing

chemicals)chemicals)

Page 26: Swimwear Fabrics Basic Characteristics & Development Dr. Jimmy Lam Institute of Textiles & Clothing

Competitive SwimwearCompetitive Swimwear Besides UV protection, there was an emphasis on practical Besides UV protection, there was an emphasis on practical

swimwear, especially in competitive swimming.swimwear, especially in competitive swimming. Olympic swimmers felt better in one piece swimsuits such as Olympic swimmers felt better in one piece swimsuits such as

skin suit.skin suit. In 1972 Munich Olympic game, these suits were manufactured In 1972 Munich Olympic game, these suits were manufactured

from very fine cotton that became virtually transparent when wet.from very fine cotton that became virtually transparent when wet. Today, this skin suit was made from a thin, light weight Today, this skin suit was made from a thin, light weight

Lycra/nylon mixture, which would cling closely to the body and Lycra/nylon mixture, which would cling closely to the body and reduce drag.reduce drag.

Reducing drag for competitive swimming has been a goal for Reducing drag for competitive swimming has been a goal for designers and manufacturers, and Swiss Olympic swimmers in designers and manufacturers, and Swiss Olympic swimmers in 1972 decided to wear suits which were glue around the neck, leg 1972 decided to wear suits which were glue around the neck, leg and arm openings, which prevented water and air bubbles from and arm openings, which prevented water and air bubbles from entering the suits.entering the suits.

Page 27: Swimwear Fabrics Basic Characteristics & Development Dr. Jimmy Lam Institute of Textiles & Clothing

Competitive Swimwear for Olympia Game

Training suit with a high neck from 80% nylon, 20% Lycra. It is soft and sticky to touch, lightweight, fast drying. And offers resistance to chlorine.

Source: Maru Skooba

Page 28: Swimwear Fabrics Basic Characteristics & Development Dr. Jimmy Lam Institute of Textiles & Clothing

Competitive Swimsuit for Olympia Game

Speedo: AquabladeOne piece swimsuit from Polyester/Lycra. With high neckline, boy short legs and silicon ridges

Page 29: Swimwear Fabrics Basic Characteristics & Development Dr. Jimmy Lam Institute of Textiles & Clothing

Competitive Swimwear (2)Competitive Swimwear (2)

Arena and Speedo, two major swimsuits Arena and Speedo, two major swimsuits manufacturers, produced swimsuits for Montreal manufacturers, produced swimsuits for Montreal Olympia, worn by American, British, Russian teams.Olympia, worn by American, British, Russian teams.

The major advantage was that the body was completely The major advantage was that the body was completely compressed by suit.compressed by suit.

The embarrassment caused by the suit’s transparency The embarrassment caused by the suit’s transparency was reduced by the use of highly coloured patterns.was reduced by the use of highly coloured patterns.

Page 30: Swimwear Fabrics Basic Characteristics & Development Dr. Jimmy Lam Institute of Textiles & Clothing

New Fiber Development fromNew Fiber Development fromDu Pont: SoronaDu Pont: Sorona

Page 31: Swimwear Fabrics Basic Characteristics & Development Dr. Jimmy Lam Institute of Textiles & Clothing

New DevelopmentNew DevelopmentDuPont SoronaDuPont Sorona

Sorona® polymers have a unique combination Sorona® polymers have a unique combination of characteristics that help of characteristics that help create softer fiberscreate softer fibers with superior with superior comfort-stretch and recoverycomfort-stretch and recovery. . Unlike nylon or polyester, the Unlike nylon or polyester, the SoronaSorona® dyeing process® dyeing process makes it possible to create a makes it possible to create a single fabric with many different colors in it at single fabric with many different colors in it at atmospheric temperatures. atmospheric temperatures.

Page 32: Swimwear Fabrics Basic Characteristics & Development Dr. Jimmy Lam Institute of Textiles & Clothing

Untextured Fiber Recovery versus Stretch as a function of Untextured Fiber Recovery versus Stretch as a function of polymer contentpolymer content

Both flat and textured yarns Both flat and textured yarns made from Sorona® fibers may made from Sorona® fibers may be made into fabrics with be made into fabrics with advanced levels of comfort fit. advanced levels of comfort fit. As shown in the chart, fully As shown in the chart, fully drawn flat yarn made with drawn flat yarn made with Sorona® recovers 100% from Sorona® recovers 100% from approximately 120% strain. approximately 120% strain. Even at higher levels, Sorona® Even at higher levels, Sorona® fibers recover completely, fibers recover completely, returning to their initial form.returning to their initial form.

Page 33: Swimwear Fabrics Basic Characteristics & Development Dr. Jimmy Lam Institute of Textiles & Clothing

DuPont SoronaDuPont SoronaSoftnessSoftness

Both flat and textured yarns may be Both flat and textured yarns may be created from Sorona® polymer, bringing created from Sorona® polymer, bringing an exceptional new level of softness to an exceptional new level of softness to any fabric at an easily workable denier. any fabric at an easily workable denier. The stress-strain curves in the chart The stress-strain curves in the chart demonstrate that flat yarns made with demonstrate that flat yarns made with Sorona® fibers are softer than either Sorona® fibers are softer than either polyester or nylon, at the same denier, polyester or nylon, at the same denier, because less effort is required to bend because less effort is required to bend Sorona® fibers. Nonwovens, such as Sorona® fibers. Nonwovens, such as medical garments, monofilaments and medical garments, monofilaments and brushes, are softer and more resilient brushes, are softer and more resilient with Sorona with Sorona

Page 34: Swimwear Fabrics Basic Characteristics & Development Dr. Jimmy Lam Institute of Textiles & Clothing

Smart FibreSmart Fibre

These unique properties — combined with fast drying, These unique properties — combined with fast drying, colorfastness, chlorine resistance, resilience, static colorfastness, chlorine resistance, resilience, static protection, stain resistance, and easy care — make protection, stain resistance, and easy care — make fibers made with Sorona® the obvious choice for a fibers made with Sorona® the obvious choice for a wide range of apparel applications, including casual wide range of apparel applications, including casual wear, ready-to-wear, swimwear, activewear, outerwear wear, ready-to-wear, swimwear, activewear, outerwear and intimate apparel. Fabrics made with Sorona® soon and intimate apparel. Fabrics made with Sorona® soon will be available to apparel companies and top garment will be available to apparel companies and top garment designers. designers.

Page 35: Swimwear Fabrics Basic Characteristics & Development Dr. Jimmy Lam Institute of Textiles & Clothing

Sorona SwimwearSorona Swimwear

Alone or blended with other fibers, DuPont™ Sorona® Alone or blended with other fibers, DuPont™ Sorona® offers all of the smart characteristics designers, offers all of the smart characteristics designers, manufacturers and consumers look for in swimwear:manufacturers and consumers look for in swimwear:

Bright color vibrancy for deeper, richer colors Bright color vibrancy for deeper, richer colors UV and chlorine resistance for brilliant color UV and chlorine resistance for brilliant color

performance performance Incredible print clarity and crisp color definition Incredible print clarity and crisp color definition Colorful good looks that last, swim after swimColorful good looks that last, swim after swim

Page 36: Swimwear Fabrics Basic Characteristics & Development Dr. Jimmy Lam Institute of Textiles & Clothing

DuPont Sorona: Performance Attributes

Page 37: Swimwear Fabrics Basic Characteristics & Development Dr. Jimmy Lam Institute of Textiles & Clothing

Comfortable, easy-care swimwear made with Sorona®.

Page 38: Swimwear Fabrics Basic Characteristics & Development Dr. Jimmy Lam Institute of Textiles & Clothing

DiscussionDiscussion

What kind of fibers are used for swimwear?What kind of fibers are used for swimwear? What kind of knitting structures are suitable for What kind of knitting structures are suitable for

swimwear?swimwear? What are the requirements for competitive What are the requirements for competitive

swimwear?swimwear? What are the latest developments of fiber What are the latest developments of fiber

technology for swimwear?technology for swimwear?