Coating and lamination in textiles

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Offline nawshin farzana

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Coating and lamination in textiles
« on: July 18, 2014, 04:05:57 AM »
Coating and lamination techniques are used to impart properties to fabrics which are not necessarily those naturally assumed by textile fabrics. Having widespread application across a range of technical textiles sectors, they increase functionality and durability as well as value. They can include; waterproofness, increased abrasion, stain, flame and UV resistance, retro-Reflection or Fluorescence, anti microbial or Phase Change Materials.

These functions can be imparted using a range of application methods, dictated by the materials being processed and the required outcome, whether they are applied as a coating or laminate is also determined by this criteria. The definition between the two is a technicality relating to the application method, generally coatings are applied to a fabric in their preparatory state, often in liquid form. Lamination requires the pre-preparation of a laminate membrane that is then applied to the textile.

The application for coated and laminated textiles is widespread across a variety of technical textile sectors, these include;


Automotive and Aerospace

Vehicle interiors- textiles often laminated onto interior components such as door panels.

 

Medical and Hygiene

Anti Bacterial Coatings

Waterproof breathable Hydrophilic membranes

 

Construction and Engineering

Tarpaulins

Bulk bags

 

Interiors

Upholstery- Stain resistance

UV resistance

 

Technical Apparel and PPE

Waterproof Breathable Membranes

Phase Change Materials

Fluorescence

Apparel

Fashion, luggage and accessories- textured looks such as high shine or ‘wet’ look

PVC/Faux leather

 

Sports and leisure

Sail cloth

Bouncy castles

 
Coatings and laminates will interact differently with the fabric; this is due to the way in which they affix to the textile surface. Figure A demonstrates how a coating covers the surface of the fabric, as applied in liquid form, it is able to penetrate the fabric structure, filling the air pockets and bridging the interstices. Figure B depicts how a laminate sits on the fabric surface, the fabric retains its air pockets and the laminate has fewer points of contact.