Comfort Of Clothing | Comfort in Textile | Textile Ride | Modes of Thermal & Moisture Conduction

 

Comfort of clothing

Definition:

Comfort is a primary requirement of clothing, which can be categorized into aesthetic comfort, thermal comfort, moisture comfort, tactile comfort and pressure comfort. Aesthetic comfort is the subjective perception of clothing by visual sensation, which is influenced by colour, style, garment fitting, fashion compatibility, fabric construction and finish.

My topic is limited to thermal and moisture comfort.so I would like to explain it.

Objective:

1.   To conduct the heat in different weather.

2.   To evaporate the sensation through fabric.

3.   More feel comfortable through thermal and moisture comfort.

Detailed overview:

1.    Thermal comfort:

Thermal comfort is related to the efficiency of heat dissipation from a clothed human body and is viewed as the ‘neither too hot nor too cold’ feeling of the wearer. The body is in a state of comfort when the core temperature of the body is maintained at 37 °C and the average skin temperature is approximately 33 °C without the presence of sweat. One of the primary functions of underwear is to act as a buffer against environmental changes in order to maintain a thermal balance between the heat generated by the body and the heat lost to the environment while allowing the skin to remain free of liquid. 

2.    Moisture comfort:

Moisture comfort is dependent on the sensation of dampness which is recommended as a sensitive tool to evaluate the thermal function of garments to balance the dampness of skin and clothing. Although the human skin has no humidity receptors, it can sense dampness, which determines the degree of comfort or discomfort. This has been confirmed by Hollies, who found that the sensation of loss in comfort occurred when perspiration was present. When more than 50–65% of the body surface is wet, it feels uncomfortable.

Requirements of comfort clothing:

1.    Maintains a comfortable microclimate in terms of temperature and humidity in the     skin sensory zone.

2.    Good moisture absorption and water vapor transmission.

3.    Absence of unpleasant odour such as perspiration.

4.    Compatibility with the skin.

5.    Good extensibility without restricting mobility.

6.    Good fit stability.

7.    Low intrinsic weight (not impairing physical performance).

8.    Substantially water-repellent and dirt-repellent.

Modes of thermal and moisture conduction:

There are three types of modes through which the thermal and moisture comforters are possible.

1.  Conduction

2.  Convection

3.   Radiation

v Conduction:

    When the fabric is with direct contact with fabric and its conduct the heat through fabric is called conduction which makes the fabric comfort for human body.

v Convection:

    When the fabric is not in direct with fabric and heat is continuously release the human body and the fabric conduct it which is make comfort the fabric.

  Absorption or disabsorption:

    The absorption and disabsorption is performed in the case of moisture means to evaporate or conduct the sensation from the human body.

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Analysis or observation:

Comfort testing of textiles:

The Hohenstein Skin Model is internationally recognized as the primary tool for the measurement of the thermal and vapor resistance of textile materials, both of which are fundamental to thermo physiological comfort. To determine the thermo physiological quality of textile materials, the Skin Model simulates the way the skin emits heat and moisture. The measurements supply precise data on thermal insulation and moisture transport resistance, perspiration transport, sweat buffering, drying time, etc.

Using a porous sintered metal plate as a measuring surface, water vapor and fluid water are released in a controlled manner in a climatic chamber, thus simulating perspiration of human skin and different wear situations with different levels of sweat production. Moisture sensors between the measuring surface and the textile to be tested measure the buffer effect of the textile and how much water vapor can be transported from the body within a specific time. This measuring technique supplies more accurate and more detailed results. While the manual evaluation of the measuring data from a series of wear tests could previously take up to three months, the modern computer-based system can complete this task in a matter of few hours. Measurements using the Skin Model now form standard tests in the field of clothing physiology worldwide.

CONCLUSION:

A balance of heat loss from the body and heat generation in the body has to be maintained to keep the person comfortable. Clothing has a vital participation in maintaining this heat balance. Many factors contribute to the thermal properties of textiles among them yarn structure and fabric structure are major factors to decide thermal comfort behavior of clothing and moisture comfort which influences on fiber types and blending of different fibers.

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