Regardless of textile production or trade, the identification and quantification of textile fibers is often the first concern. What kind of raw materials, raw material input ratio is how much, is often the primary parameter of the organization's production. In trade, in order to prevent fraud, the product must be listed. The mandatory standard GB5296.4-1998 (“Consumer Instructions for Use Textiles and Garments Instructions for Useâ€) cites FZ/T01053-1998 (“Identification of Textile Fiber Contentâ€), making the latter also mandatory, thus making textile fibers Identification and quantification play an important role in many test items. Foil Printing,Glitter Leather Fabric,Popular Foil Fabric,Polyester Spandex Fabric Shaoxing MingFang Textile Co., Ltd , https://www.printingsfabrics.com
In the identification and quantification of fibers, traders should pay attention to:
(1) The fiber content is expressed as a percentage of the total fiber content in the finished product, rather than the raw material investment ratio at the time of weaving the product. Because after a variety of processes such as textile Printing and dyeing, the loss of different fibers is not exactly the same. In addition, from the perspective of market inspections, the fiber content also refers to the finished product sold.
(2) The labeling method of fiber content has different expressions in different industries: the wool spinning industry calculates the fiber content in conjunction with the fixed moisture regain; the cotton spinning industry determines the fiber content according to the fiber dry weight. In addition, for cashmere, wool, cotton and linen equivalent blended products, the content was determined using a microscope, the result is non-dry weight non-public moisture regain content. In order to prevent exceeding the tolerance, customers should pay attention to the conditions indicating the fiber content when commissioning the inspection and production of the tag.
(3) There are two ways to identify the fiber content of two or more fiber blended and interwoven products: one is the order of diminishing fiber content; the second is natural fiber (in cashmere (cashmere, cashmere) ), wool, rabbit hair, silk (mulberry silk, tussah silk), hemp (flax, ramie, jute, hemp), cotton), chemical fiber in the post (by polyester, nylon, acrylic, viscose, spandex, polypropylene, copper Ammonia, acetate). The following two standards can be used, for example:
(I) Viscose 30% (II) Wool 25% Wool 25% Rabbit hair 10% Polyamide 20% Polyester 15% Polyester 15% Polyamide 20% Rabbit hair 10% Viscose 30%
(4) The tolerance range for the fiber content is generally controlled to be within ±1.5% of the normal range and greater than ±5% outside the limit. Between 1.5% and 5.0%, whether or not the overrun depends on the raw materials and specific products, see FZ/T01053-1998 "Identification of textile fiber content."
January 27, 2021