Home / Knowledge / News / Apparel/Garments / Hohenstein measures performance of functional garments
Hohenstein measures performance of functional garments
19
Dec '08
Functional clothing, high quality sleeping bags and bedding are designed to protect people from external weather conditions and support the body's thermal regulation system. Adequate heat insulating material is one of the essentials for textiles that are supposed to keep out the cold. When temperatures are warmer or during physical activity, perspiration should be drawn away from the body quickly and released into the environment+-, in order to support the cooling of the body.

Since 1946, a series of measurement technologies have been developed at the Hohenstein Institutes in Bönnigheim, Swabia. These methods make it possible to evaluate objectively the interplay between the body, climate and clothing in order to assess what is known as their physiological comfort. In making these assessments, a fundamental distinction is made between thermo-physiological aspects – i.e. the management of warmth and moisture, and how the textile feels on the skin (skin sensibility).

Thermo-physiological measurement methods:

The Hohenstein Skin Model:
The Hohenstein Skin Model simulates the way the skin emits heat and moisture. It consists of a sintered, porous metal plate that can be warmed electrically and to which water is supplied. It is located in a climate-chamber, a space where the most diverse environmental conditions can be simulated. Temperature, humidity and the movement of air can be set as desired.

For substances and fabrics, measurements taken using the skin model supply specific parameters such as, for example, thermal insulation and moisture transport resistance a measure for "breathability," perspiration transport and sweat buffering, and drying time, etc. These parameters characterise the thermo-physiological quality of textile materials

Thermally Segmented Testing Mannequins `Charlie 3´, `Charlie 4´ and `Charlene´:
The thermal insulation of ready-made garments, bedding and sleeping bags can be measured with the help of the thermally segmented testing mannequins `Charlie 3´, `Charlie 4´ and `Charlene´ who were also developed at the Hohenstein Institute. Using what are known as human thermoregulation models, the heat generated by adults and children is set.

The segmented mannequins are made of copper or synthetic materials and have been fitted with a computer-controlled heating system that allows the heat generation for different parts of the body to be regulated individually and independently of one another. The more heat emitted from the arms or legs, for example, the worse the thermal insulation of the garment is for those areas of the body.

These figures are very significantly influenced by the movement of air when the body is in motion. Therefore the segmented mannequin `Charlie 4´ has been set up so he is able to move during testing as if he were out for a brisk walk.

The assessments made using the thermally segmented testing mannequins are an important complement to those made using the skin model, because the influence of the way the item or garment is made (fit, elasticised cuffs, turtlenecks, etc.) can be taken into consideration. But because the `Charlies´ and `Charlene´ can do all this without breaking a sweat, moisture management – and with it a significant aspect of thermo-physiological wear comfort – can only be evaluated when the results of tests made on the skin model are available to use as a basis.


Must ReadView All

Textiles | On 23rd Aug 2017

US govt initiates Section 301 investigation of China

The US government has initiated an investigation of China under...

Apparel/Garments | On 23rd Aug 2017

BRC welcomes clarity on goods flow during Brexit

British Retail Consortium (BRC) has welcomed the greater clarity that ...

Textiles | On 23rd Aug 2017

Pakistan minister seeks ideas to boost textile sector

The Pakistani Government will come out with short- and long-term...

Interviews View All

Sachin Sharma
Gem Enviro Management Pvt Ltd

There are no significant differences between virgin yarn and PET recycled...

Yashiki Gumber
Sahiba Fabrics

Fabric does not restrict us from fashion trends

Nuno Venda
ROQ

‘There has been an increase in demand for water based inks, rather than...

Johan Berlin
InvestKonsult Sweden AB

Investkonsult Sweden AB has been buying and selling second-hand textile...

Eric Scholler
Groz-Beckert

The Indian market has huge potential in technical textiles, and by far,...

Lynda Kelly
Suominen Corporation

Suominen Corporation is a manufacturer of nonwovens as roll goods for...

Yash P. Kotak
Bombay Hemp Company

One of the directors of Bombay Hemp Company, Yash P. Kotak, speaks to...

Nisha Chanda
Whistling Woods International School of Fashion

<div>A lack of upgraded courses in costume designing and fashion as per...

Tony Ward
Tony Ward

"You have to truly understand what your client wants, know her needs, what ...

Press Release

Press Release

Letter to Editor

Letter to Editor

RSS Feed

RSS Feed

Submit your press release on


editorial@fibre2fashion.com

Letter To Editor






(Max. 8000 char.)

Search Companies





SEARCH

August 2017

Subscribe today and get the latest update on Textiles, Fashion, Apparel and so on.

news category


Related Categories:

Planning to Take the Leap towards
Sustainability?

Do you see sustainability as a route to business growth?

Yes No

Do you think the sustainability space has the needed tools and resources available for a business to lead change?

Yes No

Active Poll

Do you see sustainability as a route to business growth?

Yes
67.7%
No
16.1%
Skip
16.1%

Total Votes: 31

Do you think adopting a sustainable approach will be a profitable move for your business?

Yes No

Active Poll

Do you think the sustainability space has the needed tools and resources available for a business to lead change?

Yes
45.2%
No
35.5%
Skip
19.4%

Total Votes: 31

Do you want the world to know about your sustainability journey and your business’ environmental footprint?

Yes No

Active Poll

Do you think adopting a sustainable approach will be a profitable move for your business?

Yes
83.9%
No
6.5%
Skip
9.7%

Total Votes: 31

Thanks for your valuable feedback. Claim your free latest sustainability e-book.

Active Poll

Do you want the world to know about your sustainability journey and your business’ environmental footprint?

Yes
61.3%
No
9.7%
Skip
29.0%

Total Votes: 31


E-News Insight
Subscribe Today and Get the
Latest News Update in Your Mail Box.
Advanced Search