Anti-heat stress clothing for construction workers Regular meeting no.26

Fabric database through literature review Literature reviewClassification of textiles Draw the merits and shortcomings of various textiles

Literature review 1.Database: Google scholar 2.Period: Key words: heat, moisture, clothing, fabric 4.Selection criteria: The study reviewed/examined specific clothing (T-shirt and pants) fabrics which used in outdoor conditions during summer. underclothing, overall, protective clothing, waterproof/repellent, spacer fabric should be excluded.

Classification of textiles FibreNatural Artificial Blending YarnCore and cover yarns Bulked yarns … TextileKnitted - Single jersey structures Woven TreatmentDyed, cosmetic, nano… Design

Preliminary summary from the literature review ( ) 1.Materials used for summer clothing are mainly cotton, polyester and wool or the blend of the materials. 2.Hydrophilic materials, such as wool, and cotton seems to be better in reducing heat stress. 3. No literature consider environment with high temperature and humidity, in this condition, moisture management fibers may be preferred. 4. Sun radiation is seldom considered, which is often met for construction workers. 5. Few literature is about clothing for construction workers.

Fabric of shirt and trousers Generally, the same fabric can be used for constructing both shirts and trousers. However, according to differential requirements of shirts and trousers for workers, different fabrics are required. 1) For T-shirt: According to the distribution of sweat glands and the regulation of venous return, the upper body requires better air permeability and water vapour permeability. Moreover, in consideration of construction workers’ movement when they undertake physical work, good elasticity is also important. Knitted fabrics are always used to construct T-shirt for its good heat and moisture properties, comfort, lightweight [Mavruz & Ogulata, 2010], and ease to move.

2) For trousers: In consideration of safety of construction workers, abrasion resistance of trousers is very important. Woven fabrics are always used to construct trousers for its good abrasion resistance, stiffness and drapability.