What is CoolCore fabric? What are the processing methods?

CoolCore fabrics are made adopting unique methods (such as modification of fiber raw materials or finishing processing of fabrics, etc.), so that the fabric has a rapid diffusion of body heat, accelerated perspiration and cooling effect, which can maintain the cool feeling and comfort of fabrics for a long time. CoolCore fabrics are widely used in clothing, home textiles, outdoor sportswear and so on.

The main feature of CoolCore fabrics is instant cool comfort, which is mainly reflected in the following two aspects: first, good thermal conductivity, which can quickly dissipate body heat and make the wearer have a cool feeling. Secondly, it has good moisture conductivity. The sweat produced by the human body can be quickly transferred to the outer layer of the garment, taking away a large amount of heat, giving people a cool and comfortable feeling.

There are the following ways about the processing of CoolCore fabrics existing in the market.

1. CoolCore Fiber

CoolCore fibers are mainly produced by two methods: physical modification and chemical modification.

Physical modification is divided into two methods:

1. Mica, jade, and other materials with thermal conductivity and heat dissipation functions are processed by special processes and then micronized, then adding spinning solution according to a certain proportion, and then passing through the specific shape of the spinneret, and finally forming the cool feeling fiber with continuous high thermal conductivity.
2. Change the shape of the spinneret to obtain special fiber cross-section and increase the moisture absorption and permeability of the fiber.

Chemical modification is to change the type of atoms or atomic groups on the macromolecular chain, or to change the way of combining between the atoms. Typically, three methods are used, including copolymerisation, grafting and cross-linking, in order to enhance the properties, such as thermal conductivity, moisture permeability, air permeability of textiles, like Sophista fiber.

2. Cooling Agent Finishing

Attach cooling microcapsules or xylitol cool finishing agent to ordinary fabrics through conventional impregnation, dip rolling or coating and other ways, so that it has the function of instant cooling. The disadvantage of the cool finishing agent is that the cool feeling is not persistent, and will be reduced with the increasing washing times.

3. Other New Materials

Phase change material (PCM) as a new kind of material for energy storage, can be in a particular temperature through the material phase state changes, to achieve the automatic absorption, storage and distribution of heat and to achieve a good temperature regulation effect, which is very suitable for CoolCore textiles. This technical material has been applied to space suits, which can actively regulate temperature and manage heat and humidity on the surface of the human body.