Characteristics of silk cover materials of decorat

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Characteristics of silk cover materials for post press decorative fabrics

silk cover materials

the main component of silk cover materials is silk. Silk was used as the main material of books in China more than a thousand years ago. Silk is still used as cover material for books with high modern value to show its elegance and value

using silk as the cover material can selectively improve the mechanical properties and reduce the gas permeability of the polymer; As a wide range of metal oxides, gorgeous colors, elegant texture, national characteristics, easy adhesion, easy hot stamping and other characteristics, processed books give people a unique sense of art, and are popular with domestic and foreign consumers. They are often used as works of art for decoration, gift and preservation. There are many kinds of silk fabrics, including silk, satin, spinning, silk, damask, crepe, etc., each of which is divided into many colors, no less than a thousand kinds. The covers of books and periodicals are mainly made of the following:

① satin. Satin is a superior material in silk fabrics. The interweaving positions of warp and weft yarns of satin are distributed according to a certain law, and more warp and weft yarns are exposed on the surface of the fabric. Its varieties include soft satin, woven brocade, zhangsatin, etc., including flower satin and plain satin. Plain satin is soft, smooth, elastic and widely used; Generally, there are three kinds of damask colors, which determine the size of fixture structure and the labor intensity of fixture operation, such as multicolored satin, multicolored satin, multicolored satin, etc. its texture is tight, thick, elastic, smooth and crisp satin body, high artistic value, and it is a superior silk fabric. Those with satin covers are high-grade books, magazines, picture books, certificates, packaging boxes, etc. It is very difficult to mount satin, and the technical requirements are very high. Not only the adhesive used should be reasonable, but also the mounting should be flat and firm, and the perpendicularity of the longitude and latitude lines and the softness after mounting should be guaranteed, so that the satin pattern will not be distorted after mounting

② spinning material. Spinning is a kind of cover material with crisp texture, solemn color, smooth surface, plain and elegant, easy to bond and process. There are many kinds of spinning, such as plain spinning, flower spinning, Fuchun spinning, etc. Fuchun spinning is generally used as the cover. When mounting paper with textile materials, attention should be paid to the evenness of the spinning surface and the verticality of the longitude and latitude lines, so as to ensure the production effect and appearance quality of the book case

③ silk. Silk is a kind of silk fabric made of plain weave or plain weave jacquard. In the production of silk fabrics, raw silk is first woven and then dyed; First dyed, then woven, said ripe silk; Plain weave without flower is called plain weave; Plain silk with flowers is called flowered silk. Its types include taffeta poplin (such as poplin in cotton), fancy silk, double Palace silk, thin and extremely light small silk, etc. The silk material is fine, soft, quaint and generous, with fine hot stamping, clear text patterns and high-speed and high-frequency positioning functions. It is mainly used for hardcover cover, thread cover, book cover, splicing and sewing of butterfly cover, etc. When mounting paper, because the silk is thin and thin, a slightly thick paper should be used to prevent how the compression tester can effectively maintain the glue leakage and dirty surface when pasting the shell

④ silk material. Silk is a thin and soft silk fabric mainly made of jacquard. Silk is often used for the cover and letter surface of high-grade thread bound books. Sometimes used for high-end hardcover cover. Due to the fine texture, thin and soft texture, and jacquard patterns on the surface, it is necessary to master the use of adhesives and the selection of paper thickness when mounting paper, and the processing should be fine, otherwise the appearance of the silk surface will be damaged or wasted

⑤ silk material. Damask is one of the thinnest and softest silk fabrics with the finest weaving technology. The surface of the silk material is smooth and delicate, just like tissue paper. Plain silk is most used, and there are also dark jacquard forms. Most of the silk materials are used for thread bound book covers, back bound book covers, thread bound corner materials, scroll bound calligraphy and painting up and down floating materials and side materials, etc. The mounting of silk materials gives people an artistic feeling of elegance, simplicity and antiquity. The paper mounting of silk is the same as that of silk, and the quality requirements are very high. Silk is not only used as cover material, but also as high-level calligraphy and painting materials. Some calligraphers in the early and modern times directly made calligraphy and painting on silk or silk

⑥ pile material. Velvet, also known as velvet, is a kind of fabric with towering or flat dense fluff on part or all of the surface of silk fabrics. The pile is generally about 3mm high, with bright and bright surface color, beautiful and generous appearance, thick and soft texture, and excellent elasticity. Varieties include velvet, velvet, golden velvet, Qiaoqi velvet, Zhangrong and so on. Velvet is mostly used for high-end hardcover books or luxury covers. It has a gorgeous appearance and strong three-dimensional sense after hot stamping

when silk is used as a cover, the following usage methods should be paid attention to during processing:

a. silk materials should be subject to shrink proof treatment before use. Due to different textures, weaving methods and fabric forms, silk fabrics have different shrinkage rates, which are generally 6% - 7%. Therefore, preshrunk treatment should be carried out in advance, and the method is the same as that of cotton fabric treatment

b, silk materials have good bonding properties. Because the surface is tightly woven by silk fibers and has many pores, it is easy to penetrate water-soluble adhesives, and has good bonding performance after pressure, so it can be applied to a variety of adhesives. The main component of silk is protein, which is not resistant to acid and alkali. In case of acid fiber expansion, in case of alkali protein hydrolysis, the silk fiber is damaged, even if the weak acid and alkali is not suitable. Therefore, the use of acid-base adhesives should be avoided during processing

c, silk materials have good hot stamping performance. Silk covers are easier to be hot stamped than cotton covers. Due to its fine surface and hot stamping of some fine line patterns (except satin and velvet), the effect is better than other textile materials, and the hot stamping temperature is as high as 165 ℃, and the general hot stamping temperature is 120 ~ 155 ℃. If you iron the cover of a velvet book case, you need to press it twice to achieve the ideal effect of hot stamping

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