1. Give fabric special properties

Common waterproof finishing, water repellent finishing, flame retardant finishing.

Waterproof finishing is to coat the fabric so that neither water nor air can pass through;

Water repellent finishing is to change the hydrophilicity of the fiber surface into hydrophobicity, so that the fabric is breathable and not easy to be wetted by water;

Flame retardant finish: the finished fabric has the ability to prevent the spread of flame in varying degrees. After leaving the fire source, it can quickly stop burning.

2. Improve the durability of clothing fabrics

Moth proof finish: the auxiliaries used in moth proof finish should be high efficiency and low toxicity, without side effects on human body and affecting all aspects of fabric performance. The commonly used moth proof finishing methods are chemical modification of wool and moth proof agent finishing.

(1) Chemical modification of wool: new and stable cross-linked structure is formed through chemical modification. When moths eat this cross-linked structure, it is difficult to digest and finally kill it, so as to improve the moth resistance.

(2) Moth proofing agent finishing method: wool fiber is directly covered with chemicals that can kill moths by finishing. These chemicals are directly immersed in the cortex of moths, or poisoned through respiratory and digestive organs to make them die.

3. Improve the hand feel of clothing fabric, soft finish:

Soft finishing is a process to make up for the defects of stiff and rough handle and make the fabric feel soft. Including mechanical softening finishing, chemical softening finishing and stiffening finishing.

Mechanical softening finishing is mainly to use mechanical method to knead and bend the fabric for many times in tension state, so as to reduce the rigidity of the fabric and restore it to proper softness.

Chemical method is to use softener to reduce the friction coefficient between fibers to obtain softening effect.

Stiffening finishing is to make the fabric smooth, stiff, thick and plump, improve the strength and wear resistance, and also improve the drapery and appearance.

Stiffening finishing is usually carried out in combination with sizing. Softener is added to the slurry to improve the comprehensive handle. Similarly, for simple softening finishing, stiffening agent is added to enhance the body bone.