Gray fabric refers to fabric that has not been printed and dyed after being woven, or natural cotton fabric used for printing and dyeing. Gray fabric in industry generally refers to cloth, or laminated gray fabric, glued gray fabric, etc.
The gram weight of gray fabrics is generally the number of grams of fabric weight per square meter. The gram weight is an important technical indicator of knitted fabrics. Woolen woolen fabrics usually also use the gram weight as an important technical indicator. The effective width of the fabric is generally expressed in inches or centimeters. Common ones are 36 inches, 44 inches, 56-60 inches, etc., which are called narrow width, medium width and wide width respectively. Fabrics higher than 60 inches are extra wide. , often called wide-width fabrics. The width of extra-wide fabrics in my country today can reach 360 cm, and the width is generally marked after the density.
There are many types of gray fabrics and there are many classification methods. According to the classification of yarn raw materials, it can be divided into pure textile fabrics, that is, the raw materials constituting the fabric use the same fiber, such as cotton fabrics, wool fabrics, silk fabrics, polyester fabrics, etc.; blended fabrics, that is, the raw materials constituting the fabrics use two or more kinds of fibers. Different types of fibers are blended into yarns, including blended fabrics such as polyester, viscose, polyester, nitrile, polyester, and cotton. Blended fabrics, that is, the raw materials that make up the fabric are made of single yarns of two types of fibers that are combined to form strands. There are low-elastic polyester filaments and medium-length blends, and there are also polyester short fibers and low-elastic polyester long fibers. Silks are mixed to form strands, etc. Interwoven fabrics, that is, the raw materials that make up the fabric’s two directional systems are made of different fiber yarns, such as antique satin interwoven with silk and rayon, nylon and rayon interwoven with nylon, etc. According to whether the raw materials of the fabric are dyed or not, gray fabrics can be divided into white fabrics, which refer to fabrics made from raw materials that have not been bleached or dyed. Silk fabrics are also called raw fabrics. Dyed fabrics are fabrics made from bleached and dyed raw materials or fancy threads. Silk fabrics are also called cooked fabrics.
According to the processing method, it can be divided into the following categories. Woven (shuttle) fabric is a fabric made of two systems of yarns arranged perpendicularly to each other, that is, transverse and longitudinal systems, and interwoven according to certain rules on a loom. There are denim, brocade, flat cloth, linen, etc. Knitted fabric, a fabric formed by knitting yarn into loops, is divided into weft knitting and warp knitting. Weft knitted fabrics are made by feeding the weft threads into the working needles of the knitting machine from the weft direction, so that the yarns are bent into loops in order and threaded around each other. Warp knitted fabric is made by using one or several groups of parallel arranged yarns, which are looped simultaneously on all the working needles fed into the knitting machine in the warp direction. Nonwovens are made of loose fibers that are bonded or stitched together. Currently, two methods are mainly used: bonding and puncture. This processing method can greatly simplify the process, reduce the cost of the textile and garment industry, improve labor productivity, and has broad development prospects. Knitting (woven) products are products formed by two or more groups of thread-like objects that are misaligned, stuck or interlaced with each other, such as mats, baskets and other bamboo and rattan products; or one or more yarns are mutually intertwined. Braiding products for stringing, twisting and knotting. The other type is a complex product with a three-dimensional structure that has special equipment and multiple yarn feeds that are knitted according to certain spatial interweaving rules. Composite fabrics are made of two or more materials from woven fabrics, knitted fabrics, knitted fabrics, nonwoven fabrics or membrane materials through interweaving, needling, spunlace, bonding, sewing, riveting and other methods. layer of fabric.
In addition, it is worth mentioning that the stacking method of gray cloth is more particular. First of all, there must be a warehouse that is spacious and large enough. Next, differentiate according to the type of fabric. For example, knitted fabrics and woven fabrics must be distinguished, because knitted fabrics are softer in rolls, while woven fabrics are rolled. It is relatively straight, and there are also classifications of fabric materials. Cotton fabrics are separated, and polyester-cotton fabrics and fiber fabrics are divided into three parts.
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