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POLYESTER
TECHNOFABRIC: CUSTOM PRODUCTION OF POLYESTER FIBER FABRICS FOR MULTIPLE INDUSTRIAL APPLICATION.
Polyester is the generic name given to polyethylene terephthalate fibres. Its great diffusion is due to its incomparable characteristics of excellent toughness and resilience, high resistance to abrasion, creases and heat, an elevated modulus of elasticity, minimum humidity recovery and good resistance to chemical and physical agents.
Technofabric produces a wide selection of raw or dyed polyester fibre fabrics as well as fabrics in polyester fibre combined with other natural, artificial or synthetic materials. Thanks to intensive research and development activities, the company has created exclusive technology for achieving maximum dimensional stability of the fabrics with polyester fiber and the minimum longitudinal elongation.
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Here is a small guide to learn more about Polyester:
- What is Polyester?
- What are the characteristics of Polyester?
- What are Polyester Fabrics?
- What are the applications of Polyester?
THE MEANING OF POLYESTER
Polyester is a synthetic polymer derived from the polycondensation of a carboxylic acid and an alcohol. It is the most common name for Polyethylene Terephthalate (PET).
Its properties give polyester products qualities such as crease resistance, wear resistance and dimensional stability. Even after many washes, polyester fiber do not require ironing and easily withstand dyeing processes.
Polyester fibre are waterproof and resistant to dirt, thanks to their low coefficient of liquid absorption.
Polyester is often used in combination with other fibres. To give its surface further mechanical characteristics, it can also be subjected to specific treatments. Besides the world of clothing, it finds application in many sectors.
CHARACTERISTICS OF POLYESTER
The qualities of Polyester have contributed to its broad use in various fields. In addition to high stability, Polyester has the following characteristics:
- • Immersion in water: Polyester loses some points of tenacity when wet but regains its original characteristics after drying.
- • Moisture: The standard regain of moisture for polyester is 0.5%.
- • Boiling Water: Polyester shrinks and slightly loses strength due to hydrolysis – this tendency can be more pronounced in the presence of steam and even greater with high-pressure steam.
- • Heat Good resistance to dry heat up to 180° (except upon prolonged exposure).
- • Melting Point: Over 250° C.
- • Flame: Subjected to flame, polyester tends to melt before burning. Burns with smoky flames.
- • Acid Resistance: Good resistance to acids but disintegrates upon heating in concentrated mineral acids.
- • Alkali Resistance: Generally good but at room temperature, polyester is subject to slow hydrolysis, which is accelerated at higher temperatures. Resistance to amines is not very good.
- • Solvents: Polyester is resistant to standard hydrocarbon solvents, aromatics and chlorinated compounds. It is soluble in phenols and other solvents at their boiling point, including cyclohexanone, benzyl alcohol, nitrobenzene and dimethyl phthalate. Polyester dissolves in boiling concentrated alkali and boiling ethylene glycol.
- • Polyester is not susceptible to microbiological attack.
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POLYESTER FIBRE
Woven polyester combines the strength and elongation characteristics of Nylon with the modulus characteristics of rayon. This combination of properties renders fabrics suitable for a variety of applications.
However, woven polyester can have some problems.
The first concerns adhesion. Due to its relative chemical inertness, it is much more difficult to achieve satisfactory degrees of attack with polyester than with nylon and rayon. To resolve this issue, polyester yarns can be pre-treated with epoxy derivatives. Epoxide is applied in solution or in aqueous emulsion towards the end of the process. The fabric is then subjected to heat treatment to modify the surface of the fibre and RFL treatments to obtain sufficient adhesion. Polyester fibre treated in this way are referred to as being pre-treated, pre-activated, primed or rubber-receptive.
The second problem concerns heat shrinkage which is higher than that of nylon. In the design phase, it is necessary to evaluate the characteristics of the fibre in terms of shrinkage/modulus, as well as the choice of the degree of twisting of the yarn to determine the level of resistance to abrasion and fatigue.
It is also possible to use textured yarns, being yarns which – thanks to thermo-mechanical treatments – take on characteristics of greater volume and elasticity, so as to achieve polyester fiber with particular mechanical characteristics.
Based on customer specifications, our company produces a wide range of raw or dyed fabrics in polyester or in combination with other fibres, such as polyester and nylon.
All fabrics – thanks to an exclusive technology developed within the company – can be subjected to a thermal stabilisation and stretching treatment to obtain maximum dimensional stability and minimum longitudinal elongation (known as crimp).
Polyester fibre can also be subjected to the following treatments:
- • Polyurethane treatment
- • Treatment with water- and oil-repellent substances for impregnation or coating
- • Treatment with RFL (Resorcinol-Formaldehyde-Latex) for impregnation or coating (single and double-face) to facilitate adhesion
- • Anti-mould treatment
- • UV protection
Our team is at your disposal to guide you in choosing the optimal woven polyester for your company.
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APPLICATIONS OF POLYESTER
- • For transmission belts
- • To support rubberised fabrics in offset printing
- • PTo support rubberised fabrics in the nautical sector
- • For rubber hoses
- • For screen printing
- • For conveyor belts
- • For sails in the nautical sector
- • For kites
- • For membranes
- • For filters
- • Anti-perforation fabrics in polyester
- • Cut-resistant polyester fiber
- • For sunshades
Polyester fibres have excellent toughness and resilience, with a high resistance to abrasion, creases and heat, along with a high modulus of elasticity, minimal moisture recovery and good resistance to chemical and physical agents.
Thanks to such characteristics, polyester fibres are often used in the sectors of clothing (especially sportswear), furniture (curtains, flooring, coatings, etc.) and above all for the production of technical textiles (transport, geotextiles, medical, safety devices, etc.).
Let’s look at the main applications of polyester fabric and polyester in combination with other fibres (cotton, nylon, etc.).
POLYESTER FIBERS FOR TRANSMISSION BELTS
Polyester fibres for transmission belts are used in the machine tool industry, for industrial machinery, fitness equipment and the automotive field. Powerful transmission belts with an element of polyester traction are resistant to strong stresses whilst also guaranteeing elasticity, cushioning and toughness.
Contact our team to find out about all the uses of our fabrics for transmission belts:
request information.
POLYESTER FIBERS TO SUPPORT RUBBERISED FABRICS IN OFFSET PRINTING
Polyester are utilised to support rubberised fabrics in the nautical sector due to their characteristics of flexibility and a resistance to water, wind, abrasion and UV rays.
Contact us to find the best polyester fibres to satisfy the needs of your business: request information.
POLYESTER FOR SUPPORTING RUBBERISED FABRICS IN THE NAUTICAL SECTOR
Polyester fabrics are utilised to support rubberised fabrics in the nautical sector due to their characteristics of flexibility and a resistance to water, wind, abrasion and UV rays. Contact us to find the best fabrics to satisfy the needs of your business: request information.
POLYESTER FABRICS FOR RUBBER HOSES
Polyester fibres for rubber hoses are often treated with additional PVC, polyurethane or thermoplastic rubber coatings for multiple uses.
They can be used, for example, in the automotive, aeronautical or mechanical industries as a reinforcement for suction pipes in rubber or plastic, for materials, dust, gases, fumes and vapours.
Our team is at your disposal to make polyester for rubber hoses specific to your company:
request information.
POLYESTER FOR SCREEN PRINTING
Thanks to their chemical-physical characteristics, polyester are broadly utilised for the preparation of screen-printing frames, with specific use in printing conductive inks in the electronics sector as well as for decorations on ceramics, glass, wood, plastics, polyethylene paper or polypropylene.
Contact us for advice on the most suitable polyester for screen printing: request information.
POLYESTER FOR CONVEYOR BELTS
Polyester fabrics for conveyor belts are employed in various industrial fields, from food to metalworking. With a high tenacity and resistance to tension, abrasion and wear, polyester yarns are often combined with other materials, such as polyurethane or anti-static twisted yarns in carbon, to improve their technical characteristics.
Our team is at your disposal for any information about our Polyester for conveyor belts:
request information.
POLYESTER FIBERS FOR SAILS IN THE NAUTICAL SECTOR
Thanks to their dimensional stability, durability and resistance to UV rays, polyester are the most utilised material in the production of sails for the nautical sector. Trust in our experience! Contact us for a quote: request information.
POLYESTER FOR KITES
Thanks to their resistance to tension, abrasion and wear and to UV rays, polyester fibres are the most utilised material in the construction of kites for kite-surfing.
Quite often, polyester yarns are combined with other materials to achieve even greater performance:
request information.
POLYESTER FOR MEMBRANES
Polyester are used as reinforcement materials in rubber membranes, employed in the gas sector for stabilising flows of methane and LPG, in pneumatics, in the water management industry and even in animal husbandry. Contact us to find out about all the characteristics of our polyester for membranes: request information.
POLYESTER FOR FILTERS
Polyester for filters can be customised according to the client’s needs. We produce polyester fabrics for industrial filtration that can be employed in various sectors including the pharmaceutical, food, chemical, metallurgical, mining and water treatment industries. Our team is available to listen to your needs and create the optimal polyester fibres for your business: request information.
ANTI-PERFORATION FABRICS IN POLYESTER
The anti-perforation polyester fiber are used in the production of Personal Protection Equipment such as gloves, vests and jackets.
Contact us to discover our entire range of polyester: request information.
CUT-RESISTANT POLYESTER FIBERS
Cut-resistant polyester fibers are used for the production of work trousers, jackets, harnesses or gloves, commonly utilised by chainsaws operators, forestry workers and in the food industry.
The Technofabric Team will guide you in choosing the best cut-resistant polyester fibers, designed to your needs: request information.
POLYESTER FOR SUNSHADES
Polyester fibres are the most commonly used in outdoor sunshades. Indeed, they guarantee resistance to the sun’s rays, to water and humidity, wind and tears.
The Polyester ensure the maintenance of colours and consistency over time. Technofabric produces polyester for blinds that are made to measure for you: request information.
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