What aspects does the comfort performance of textile fabrics include?
Textile fabric comfort heat transfer thermal insulation properties water vapor permeability
Comfort performance includes the fabric’s heat transfer and thermal insulation properties, water vapor permeability, fabric style, rigidity and flexibility, drape, and raising. Ball performance and flame retardancy, etc.
The thermal conductivity of a fabric refers to the ability of the fabric to transmit heat per unit area per unit time. It depends on the type of raw material, fabric structure and air layer in the fabric. The opposite of heat transfer properties is thermal insulation (thermal resistance).
The water vapor permeability of a fabric refers to the ability of gaseous water to penetrate the fabric. When one side of a fabric is subject to greater water vapor pressure than the other side, water vapor will penetrate the fabric. Water vapor permeability is closely related to factors such as fabric raw materials, yarn structure, fabric structure and tightness.
The air permeability of a fabric refers to the ability of the fabric to pass through air. It mainly depends on the gaps between the yarns and fibers in the fabric and the space between the fibers. The shape of the cross section. The greater the warp and weft tightness of the fabric, the tighter the fabric, and the worse its air permeability.
The style of fabric refers to certain appearance and tactile properties of the fabric, such as color, brightness, level dyeing, gloss, and surface smoothness. , dry texture, smoothness, etc. The sense of touch includes smooth and rough; waxy and stiff; smooth and rough; hard and soft; fluffy and compact; thick and thin; plump and loose; warm and cool, etc.
The feel of the fabric refers to the feeling of the hand to identify certain physical properties of the fabric, which is an important aspect of style. Different fabrics have different feel. The factors that affect the hand feel include fiber raw materials, yarn twist and twist direction, fabric structure, dyeing and finishing process, etc. Among them, fiber raw materials have a greater impact. The hand feel is also related to certain mechanical properties of the fabric, such as the flexibility, extensibility, resilience, etc. of the fabric.
The luster of a fabric means that when light shines on the fabric, the reflected light causes the fibers to shine. If the fiber surface is smooth and arranged parallel and consistent, and the reflected light is strong, the fabric will have a bright luster; on the contrary, if the fiber surface is rough and uneven, the arrangement is disordered, and the reflected light will diffuse in different directions, the fabric will have a dark luster.
The rigidity and flexibility of a fabric refers to its ability to resist bending stress, also known as bending stiffness. A greater bending stiffness indicates a stiffer fabric. Appropriate bending stiffness means the fabric is stiff.
The drape of fabric refers to the characteristic of fabric forming a smooth and uniform curved surface under natural drape. The softer the fabric, the better the drape. Drapability is related to rigidity and flexibility. Fabrics with high bending stiffness have poor drape.
The fabric is constantly subjected to friction during wearing and washing, causing the fiber ends on the surface to be exposed and showing a lot of hair, which is called “fluffing”. If these hairs do not fall off in time as you continue to wear them, they will become entangled with each other and knead into many bead-shaped particles, which is called “pilling”. The pilling of fabrics is related to the fiber’s properties, length, fineness and cross-sectional shape.
When the fabric encounters sharp and hard objects during the washing process, the fibers or monofilaments in the fabric are hooked out, forming loops on the surface, or even being hooked off to form The silky shape is called hook silk. This affects the appearance and fastness of the fabric. Knitted fabrics often fall apart due to snagging, destroying the tissue structure. The factors that affect snagging and methods to prevent snagging are basically similar to pilling.
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