How does the raising process of flannel fabric affect its comfort and warmth properties?

The main reason why flannel fabric is widely recognized as the material of choice for winter clothing and home furnishings is that its unique raising process has a direct impact on the comfort and warmth performance of the fabric. The raising process refers to mechanical or chemical treatment on the surface of the fabric to pull out some fibers to form a layer of fluff. This layer of fluff not only improves the feel of the fabric and makes it softer, but also significantly enhances the warmth retention of the fabric. The raised flannel fabric has a delicate feel and can bring a warm wrapping feeling when worn.

The raising process improves the comfort of flannel fabrics in many ways. The surface of the raised fabric is softer, reducing friction when in contact with the skin and avoiding the itchy feeling that traditional fabrics may cause. This softness is especially important when making close-fitting clothing such as pajamas or sheets, as it can bring great comfort to the user. Secondly, the raised fabric has good hygroscopicity and can effectively absorb sweat on the skin surface to keep the body dry. This feature not only improves wearing comfort, but is also suitable for making bedding with high moisture absorption performance requirements.

In terms of thermal insulation performance, the raising process is achieved by increasing the thickness and bulk of the fabric. The fluff layer formed after raising can capture and retain more air. These air layers form a natural insulation barrier between the fabric and the skin to prevent the loss of body temperature. Especially in cold environments, this barrier can effectively maintain body temperature, thus improving the thermal insulation effect of the fabric. Therefore, flannel fabric is especially suitable for winter use, whether as outer clothing or bedding, it can provide sufficient warmth.

However, the raising process also needs to be properly controlled to avoid affecting the durability of the fabric. Excessive raising may cause fibers to loosen, reducing the strength and abrasion resistance of the fabric. Therefore, during the production process, the intensity and time of the raising process must be finely adjusted to ensure that the durability of the fabric is maintained while improving comfort and warmth. High-quality flannel fabrics tend to do an excellent job at this, being soft and comfortable while also being able to withstand long-term use and multiple washes.