The products of felt manufacturers have good water absorption. We often use felt to absorb water. If it is needled felt, what are the influencing factors?
First, the fiber is used, including the type of fiber suitable for the required performance, the size, the length of the fiber, and the method of forming the bun. Then there are the types of needles and the method of needle punching, mainly the thickness of the needles, the arrangement of the needles, the density of the needles, the feeding distance, the penetration depth, and the choice of base fabric. The third is resin coating, which is to use spray or roller for single-sided coating, or hot-melt resin for coating. The other is thermal shrinkage, which is to roll in low-melting fiber and treat it with dry, wet, and heat to shrink the felt.
Felt is a kind of solid fiber, it is very clear under the microscope. The raw material of wool felt is wool, and wool is composed of many sheep fibers. When wool stands in the water, the floating hair around it spreads along the outside of the fiber. Based on the characteristics of wool, the water absorption performance of wool felt can be so good. It is precisely this performance that we can use to bring more convenience to our lives.
