Little knowledge of why fabrics after finishing

The purpose of finishing is mainly to solve the following problems:

The fabric webs are neat and dimensionally stable. These sorts of finishes include: fixed-width, shrink-proof, wrinkle-free, and heat setting.

Improve the feel. This kind of finishing can use the mechanical method, the chemical method or the two together to treat the fabric, so that the fabric feel, such as soft, full, smooth, stiff, thin, thick and so on to get improved.

Improve the appearance of the fabric. The appearance of the fabric such as gloss, whiteness, drape, etc. is improved by physical mechanical or chemical methods. This sort of finishing: calendering, electro-optic, whitening, shrink it and so on.

Improve the performance of fabrics, or give fabrics special features. Mechanical or chemical methods are used to produce fluff on the surface of the fabric to improve warmth, such as lint, shear, wool-like, artificial silk, suede, etc. Using certain chemicals, the fabrics have special functions such as water repellency, oil repellency, anti-fouling, sanitation, and UV resistance. Chemical fabrics are made of hydrophilic, antistatic, anti-pilling and pilling.

The requirements for fabric finishing vary not only with the types of fibers that make up the fabric, but also with fabrics of the same type, depending on the type of fabric and the specific application.

According to the above requirements, fabric finishing methods can be divided into two major categories, namely mechanical finishing and chemical finishing. The former usually use wet, heat, force (tension, pressure) and mechanical action to complete the processing method; the latter uses chemical agents to react with the fiber to change the physical and chemical properties of the fabric. However, there is no clear line between the two. For example, softening can be finished by general mechanical methods, or softening agents can be used to obtain the finishing effect, but most of them are performed simultaneously by two methods, such as durable electro-optic finishing, so that fabrics are first impregnated with resin. Finishing agent, dried and then electro-optical calendering, baking.

The content of fabric finishing is very extensive, and with the development of science and technology, new content is constantly being added. At present, fabric finishing has evolved from the stage of simply exerting the intrinsic properties of fibers and obtaining temporary finishing effects toward the use of new finishing agents and new types of equipment, giving fabrics more excellent and lasting effects. After textile finishing, not only can improve product quality, but also increase the added value of the product.

Therefore, the international frontier of post-finishing is not simply a study of the level of its finishing technology, but should be based on the level reached by the product. At the same time, in order to implement the environmental protection regulations, after-finishing products must comply with environmental regulations and implement cleaner production.