Silk clothing fabric

May 08, 2019

Silk A textile, woven with silk or synthetic fibers, rayon, and filaments; a general name for fabrics that are purely woven or interwoven with silk or rayon, and also specifically for textiles woven with silk. The process of interweaving raw silk as warp and weft, and making it into silk, is the silk weaving process. The production process of various types of silk fabrics is not the same, and can be roughly divided into raw and mature weaving. Raw woven is that the warp and weft yarns are first made into fabric without refining, which is called the silk, and then the silk is refined into finished products. This type of production has low cost and short process and is the main method used in silk production. Mature weaving means that the warp and weft yarns are dyed before weaving, and the woven silk fabrics need not be refined and finished. This method is mostly used in the production of high-grade silk fabrics, such as brocade, taffeta and the like.

Before weaving, we need to prepare for such things as softening impregnation of sericin, silk and silk which can improve the performance of the product, as well as warping and weft rolling. At the same time, due to the strong moisture absorption of silk, it is necessary to do moisture-proof work. The automatic weaving machines used in the production of silk weaving mainly include: water jet loom for producing synthetic fiber filament fabrics and rapier loom for producing multicolor weft jacquard fabrics. Silk fabrics can be divided into simple plain weaves and complex floral fabrics.

Plain fabric

As a name suggests, "su" is not "flower", meaning that it has not been modified by any makeup. A plain, unpatterned fabric composed of a primitive tissue is called a plain fabric. Based on the primitive organization, at the tissue point or a weft tissue point, the tissue points of the same warp and weft are added in the longitudinal direction or the lateral direction or simultaneously to make the tissue change, and the fabric thus constructed is also called a plain fabric.

The plain weave change structure includes the characteristics of flatness, weft-flat, square, change and flatness, and still maintain the characteristics of plain weave; the twill-changed structure includes strengthened twill, composite twill, mountain twill, broken twill, acute twill, Slow twill and shadow twill, the surface still maintains the characteristics of twill weave; the satin-changing structure includes reinforced satin, variable satin, and shaded satin.

Jacquard

Jacquard fabrics are also called flower fabrics. The flower fabric is divided into two types: small pattern fabric and large pattern fabric. Small tread fabric refers to the fabric formed by the application and the joint organization, and presents a fine pattern or a strip on the surface of the fabric. A change organization refers to an organization formed by arbitrarily adding organizational points at an organization point on the Sanyuan organization. A joint organization is a new organization formed by combining two or more basic or changed organizations.

The large pattern fabric is abbreviated as a woven fabric, which is a pattern in which a certain tissue is applied to the ground, and one or more different tissues, different colors, and different raw materials are displayed thereon. There are many latitude and longitude lines in a pattern of a fabric, which can be hundreds or even thousands. Therefore, it can only be woven on a jacquard loom. The colorful silk is the crystallization of the delicate dyeing and finishing process. The printing process plays an important role in the production of silk. Because only the dyeing and finishing technology can be used, we can make our favorite colors and patterns perfect and white, so that the fabric is more artistic. The process mainly includes four processing steps of refining, dyeing, printing and finishing of raw silk and fabric.

Silk characteristics

First, comfort. True silk is composed of protein fiber, which has excellent biocompatibility with the human body. In addition, the surface is smooth, and its friction coefficient to the human body is the lowest among all types of fibers, only 7.4%. Therefore, when our delicate skin and smooth and delicate silk enamel, it with its unique soft texture, according to the curve of the human body, considerate and safely care for every inch of our skin.

Second, the absorption and desorption are good. Silk fibroin fiber is rich in hydrophilic groups such as amino group (-CONH) and amino group (-NH2), and because of its porosity, it is easy to diffuse water molecules, so it can absorb water or emit moisture in the air. Keep a certain amount of moisture. Under normal temperature, it can help the skin to maintain a certain amount of moisture, not to make the skin too dry; in the summer, it can also quickly dissipate the sweat and heat from the body, making people feel cool. It is because of this property that silk fabrics are more suitable for direct contact with human skin. Therefore, silk clothing is one of the must-have summer clothes. Silk not only has good heat dissipation performance, but also has good thermal insulation. Its insulation benefits from its porous fibrous structure. There are many very fine fibers in a silk fiber, and these fine fibers are composed of finer fibers. Therefore, more than 38% of the seemingly solid silks are hollow, and there is a large amount of air in these gaps, which prevents the heat from being emitted and makes the silk very warm.

Third, sound absorption, vacuuming, heat resistance. Silk fabrics have a high void ratio and thus have good sound absorption and air permeability, so in addition to making garments, they can also be used for interior decoration, such as silk carpets, tapestries, curtains, wall coverings, and the like. Arranging rooms with silk decorations not only makes the house dirty, but also keeps the room quiet. Because silk has moisture absorption, moisture release performance, moisture retention, air permeability and porosity, it can also adjust indoor temperature and humidity, and can absorb harmful gases, dust and microorganisms. In addition, the thermal denaturation of the silk fiber is small and relatively heat resistant. It is only about 5 to 8% embrittled when heated to 100 ° C, and most synthetic fibers are 4 to 5 times more thermally variable than silk. The burning temperature of silk is 300~400 °C, which is a kind of flame retardant fiber, while the burning temperature of synthetic fiber is 200~260 °C, which is flammable and fusible. Therefore, the use of silk fiber as a raw material for interior decoration can not only play the role of sound absorption, vacuuming, heat preservation, but also function as a flame retardant.

Fourth, anti-ultraviolet. The tryptophan and tyrosine in silk protein can absorb ultraviolet rays, so silk has a good anti-ultraviolet function. Ultraviolet rays are very harmful to human skin. Of course, after absorbing ultraviolet rays, the silk itself undergoes chemical changes, so that the silk fabric is easily yellowed under the illumination of sunlight.

Fifth, rubbing against the glass rod can positively charge the glass rod.


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