Context: India needs climate-smart fabrics to cope with intensifying heatwaves, as traditional clothing offers limited protection against extreme heat and humidity.
Relevance of the Topic: Prelims: Key facts about Climate Smart Fabrics.
What are Climate Smart Fabrics?
- Climate Smart Fabrics, also known as Smart textiles, are textiles designed to adapt to environment conditions.
- These fabrics integrate technologies like- sensors, microchips, and conductive fibres which enables them to monitor, react to, and even change their properties in response to stimuli like temperature, moisture etc.
- Examples:
- New Phase Change Materials (PCMs) integrated into fabrics can absorb excess heat and release it when things cool down.
- Scientists at Stanford University developed a textile that is transparent to infrared wavelengths and radiates heat away from the body.
Key Features:
- Thermal Regulation: Absorb and release heat to maintain optimal body temperature.
- Moisture-Wicking: Pull sweat away from the skin and enable faster evaporation.
- UV Protection: Shield against harmful ultraviolet rays.
Smart Fabrics use Important Technologies to function:
- Nanotechnology: Developments in nanotechnology allow fabrics to be treated or engineered at a molecular level to give them unique properties like water resistance or enhanced durability. E.g., Graphene Modified Protective Clothing.
- Miniaturised Electronics enable the embedding of sensors and circuits directly into textiles without affecting their flexibility or comfort.
- Wireless Technologies like Bluetooth and NFC (Near Field Communication) facilitate the communication of smart textiles with smartphones and other devices, enabling real-time data tracking and interaction.
- Thin and flexible batteries or solar cells: Improvements in energy harvesting and storage technologies are crucial to power these smart textiles.
Why India Needs Climate-Smart Fabrics?
- India is experiencing record-breaking heatwaves. For instance, Delhi's heat index touched 54°C, Ooty witnessed its warmest day in 73 years and Kashmir had its hottest June in five decades.
- As heatwaves intensify and humidity levels rise across India, especially in the Indo-Gangetic plain, traditional cotton clothing is proving inadequate.
- In high humidity, cotton dries slowly, sticks to the body, traps heat, and raises the risk of skin infections.
- Natural fibres like cotton offer little protection against harmful UV rays, increasing the risk of skin-related illnesses, including cancer.
- Over 50% of India’s workforce is engaged in outdoor occupations such as farming, construction, and street vending, making them highly vulnerable to extreme heat exposure.
- Vulnerable groups often lack access to appropriate protective clothing. For instance, in Varanasi, Blinkit delivery partners recently went on strike, demanding cotton uniforms to cope with the summer heat.
- An analysis from Down to Earth estimates that a single five-day heat wave leads to 30,000 excess deaths in summer.
Despite growing threats, India's Heat Wave Action Plan lacks longterm, science-backed interventions such as climate-smart clothing.
It relies only on a combination of early warning systems, public awareness campaigns, emergency medical response, and structural interventions like cool roofs and shaded public spaces.
Way Forward
- Integrate smart fabrics into Heat Action Plans.
- India’s new Research, Development and Innovation (RDI) Scheme (₹1 lakh crore outlay) should prioritise affordable wearable technologies and mass production of climate-adaptive fabrics.