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Thermal Testing Effect Standard And Human Body Model Of Textile Materials In India

2011/10/13 9:36:00 46

In the field of evaluation and testing of thermal comfort of textile materials and its dynamic environmental conditions, India not only follows global standards, but also incorporates its own unique way.

They believe that the international textile thermal effect assessment standard is not only useful, but also comparable to their own products on the same platform. Therefore, the textile material management requires all textile enterprises to accept international standards unconditionally, and at the same time, formulate corresponding flexible measures for themselves.

However, the India industry's thermal effect standards for textile materials believe that the thermal effect human model is the most effective.

Formulating its own thermal effect standard according to national conditions and international standards

The standard of thermal effect in India is obtained by comparing itself with international standards.

In particular, the relevant parameters of products are actually products of the combination of domestic and international standards.

In their view, any product can have different standards due to its attributes or parameters, depending on its characteristics and parameters, such as length, color and so on.

However, the testing of different materials and properties of textile fibers should be tested and evaluated on the basis of certain special test standards before they can arrive at judgement or conclusion.

The testing process, classification, and the facilities and testing conditions used in this country need to be unified and detailed.

The industry in India believes that if a certain kind of testing is invariably adopted in China, it should follow its own characteristics, and its process and results should also be changed, such as the similarities and differences of relevant regions, personnel and facilities.

They understand that

Textile materials

Different standards exist in the thermal effect test all over the world.

This is because people use different dyes and rely on different certification organs to develop and use different standards.

The following international standards are also universal because they have universal significance: ASTM (American Association for testing and materials) and AATCC (American Association of Textile Chemists and colorists), BS (British Standard), CAN (Canadian standard), DIN (German standard), EN (EU standard) IS (Japanese standard), AS (Australian standard), BIS (India standard) and so on.

In response to these standards, the industry in India has not copied the copy completely, but has taken different categories for reference, absorbing the most reasonable and valuable part, and formulating its own standard.

In this way, India still expects its standards to meet international standards and exceed their standards.

The thermal effect human body model in India

To correctly assess the thermal effect of textile materials in real environment, India textile

Material Science

Enterprises are often good at using mannequin for material testing, that is, simulating the natural environment in the laboratory environment.

The reason is that the India industry is following the Western tradition. They believe that the thermal effect mannequin is the most advanced and mature test tool in India.

This human model is completely imitated by human body or artificial body.

Among them, the textile material test may produce thermal effect and moisture pmission performance.

But they still believe that the real races are in different places or environments, and their body surface temperatures vary widely, and their thermal effects and moisture contents are different.

Therefore, in the process of testing, differences and differences must also be taken into account.

For example, the moisture content of hot dishes and cold dishes is totally different.

Therefore, the thermal effect test standards and test results need not be completely consistent.

In addition, the heat emitted by human body such as sitting, walking, running or sleeping varies from person to person, and the thermal performance of clothing is also different.

Therefore, it is very important to adopt the human thermal stress model.

The first generation of human models originated in Europe. Dutch people once called the human body "Manneken", which is called "Mannequin" in French, and the earliest human body model was born in Italy in sixteenth Century.

In the Second World War, the US Army developed the prototype thermal effect mannequin in the human fatigue Laboratory of Harvard University, mainly used to test human tolerance, and then used to test the thermal properties of textile materials.

Then they developed a three-dimensional metal cylinder that mimicked the human body. The body model was made of metal, without head and shoulders.

But the internal heat dissipation is almost the same as that of the real human body.

In 1942, the General Electric Company of the United States developed the electroplating copper thermal effect mannequin, and subsequently developed an improved human body model.

It is mainly used to measure the thermal effect of human body and textile materials.

Subsequently, thermal radiation and heat pfer human models were developed successively.

In the 70s of last century, France developed cooling technology obtained by measuring heat, which is mainly used to test the thermal insulation performance of clothes.

clothes

The thermal properties play an important role in providing comfort to the human body.

Erroneous clothing performance often leads to erroneous quality perception, and more often, the writer may be regarded as having serious psychological and physiological problems.

Accurate measurement of the thermal effects of textiles is essential for risk assessment in extreme climates.

Therefore, textile quality requirements in the sense of human environmental pformation are more important.

It enables wearers to feel the intimacy of products and provide protection to consumers.

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The correct analysis, in-depth study and objective assessment and selection of the correct textile materials to meet the requirements of international and domestic standards have become the basic requirements of the contemporary textile industry, as well as the international norms that must be followed by the industry.

The India industry has always believed that only the thermal effect human model can make them choose the correct textile materials and reduce the frequency of occupational hazards.

They seem to lack flexibility.