Scented Textile

Posted: 2014-03-31

Scented Textile

A phase change material (PCM) is a substance with a high heat of fusion. They are capable of storing and releasing large amounts of energy. Heat is absorbed or released when the material changes from a solid to a liquid state and vice versa. In this way they can compensate temperature differences in the surroundings and achieve significant energy savings. MikroCaps can provide microencapsulated paraffins with different melting points for different applications. Our paraffin microcapsules have high temperature and mechanical resistance and may be used for different applications such as in the textile industry.

                                                                     

Microencapsulated PCMs for bedding accessories

Microcapsules embedded into quilts, pillows and mattress covers ensure active temperature control in bed.

- When the body temperature rises, the additional heat energy is absorbed and the body cools down.

- When the body temperature drops, the stored energy is released and the body is kept warm.

 

Microencapsulated PCMs for upholstered furniture

Natural leather and fabrics are attractive materials for applications in the furniture industry. Thermoregulating properties, as demanded by modern consumers, are added to the material. Microencapsulated PCMs are incorporated into natural leather and fabrics using a polymer binder.

 

Microencapsulated PCMs for sportswear

Active wear provides a thermal balance between the heat generated by the body and the heat released into the environment while doing sports. The heat generated by the body during sports activity is often not released into the environment in the necessary amount, thus increasing thermal stress. When PCMs are incorporated into sportswear, during physical activity excessive body heat increases and is absorbed by the encapsulated PCMs and released when necessary.

Thermal benefits of textiles containing PCMs:

- a cooling effect, caused by the heat absorption of the PCM;

- a heating effect, caused by the heat emission of the PCM;

- a thermo-regulating effect, resulting from either the heat absorption or heat emission of the PCM which is used to keep the temperature of a surrounding substrate nearly constant

- an active thermal barrier effect, resulting from either the heat absorption or heat emission of the PCM which regulates, for instance, in a garment system the heat flux from the human body into the environment and adapts it to the thermal needs (i.e. activity level, ambient temperature)

 

 

Adding fragrances to textiles has for a long time been possible in the form of fabric softeners used in the wash. However, no matter the quality of the technique used to integrate the fragrance its effect is relatively short, only surviving one or two wash cycles. Microencapsulation offers the possibility to overcome this constraint, prolonging the durability of the applied fragrance. The encapsulated fragrance is released from the textile by breaking the microcapsule shell – bigger microcapsules release the fragrance more easily. The microcapsules can be applied by impregnation, spraying, coating or incorporation in the fibre. Microcapsules are mostly applied to textiles by impregnation using a crosslinking agent followed by drying and curing steps. The capsules survive repeated washing and release the fragrance for a long time.

 

MikroCaps can produce various encapsulated fragrances for scented textiles. By applying other microencapsulated products, other textile functionalities such as antimicrobial activity, mosquito and other insect repellents etc. may also be improved.