The felting deformation of woolen sweaters during washing in the washing machine seriously affects their quality and wearability. However, wool sweaters that have undergone preshrunk finishing can enhance dimensional stability and improve felting deformation.

The main reason for light spots is uneven pre-treatment, poor hair effect in some parts, resulting in certain dye repellency, or containing dye repellent substances. During pre-treatment, there are calcium soap, magnesium soap, etc. on the cloth, uneven mercerization, uneven drying of semi-finished products, or solid stains such as undissolved elemental powder, soda ash, etc.

There are many water-soluble groups in the molecular structure of reactive dyes, resulting in poor wet fastness, and fixation treatment is often required after dyeing. There are many types of fixing agents, commonly used including metal salt fixing agents (such as copper salts), cationic fixing agents (such as fixing agent E), and reactive fixing agents (such as fixing agent Y).

The commonly used additives for repairing dyeing defects include reducing agents, oxidizing agents, surfactants with strong cleaning functions, and alkaline agents.

The environment-friendly resin is a series of products processed from vegetable oil with high softening point, high viscosity, and better oxidation resistance, and is completely resistant to crystallization in liquid state or in solution. Its multiple uses include paint, drying agent, synthetic resin, automobile ink, floor tile, rubber compound, solder paste, and various adhesives and protective coatings.

In daily life, many people choose to use softeners to increase the softness of their clothing, making it more comfortable to wear and having a certain maintenance effect. Although softeners are a common household product, the composition and principle of softeners are unknown to many people. This article will analyze the composition of softeners and explain their principles of softening clothing