FYI Tester Instrument

Yarn dyeing refers to dyeing the yarn to a selected color before weaving or knitting. Yarn dyeing can generally obtain a good and firm leveling effect. It can be woven with natural yarn according to different design requirements, so as to obtain higher economic value and shorten the delivery cycle. Generally speaking, yarn dyeing costs more than fabric dyeing. But because it has the advantage of fast delivery, it is easier to adapt to changes in popular colors. At the same time, it can meet the needs of small batches and multiple varieties. In addition, the yarn dyeing machine is relatively simple. Thus, it is more economical in terms of maintenance. Yarn dyeing has a history of nearly a thousand years. Hank dyeing has been used for a long time. It was not until 1882 that the world had the first patent for cheese dyeing, and later beam dyeing appeared. This article introduces 3 different yarn dyeing methods and their advantages and disadvantages. Hank yarn dyeing Hank dyeing first requ

  Dyeing lab machine can be classified according to the different temperature and pressure.  The previous blog  introduce the high temperature and high pressure dyeing lab machine. And next let’s take a look at normal temperature and pressure dyeing machine in dyeing lab. AS Series Water Bath Shaker ​Application AS Series Water Bath Shaker is a normal temperature oscillation type small size dyeing machine, used for simulating the dyeing in actual production process. It can perform evenly mixing of the recipes simultaneously, so that allows more spare time of the operator to increase efficiency. Key Specification JR350 Jigger Dyeing Lab Machine Application JR350 Jigger Dyeing Machine is suitable for the dyeing test of various fabrics, such as cotton, linen cloth, viscose, man-made fiber, etc. It’s able to achieve the low liquor ratio bleaching and dyeing, and really simulate the production jigger dyeing machines. Especially designed for the requirements of dyeing and finishing enterpris

  Types of dyeing lab machine Dyeing lab machine can be divided into fiber dyeing machine, yarn dyeing machine and fabric dyeing machine according to different dyeing products; According to the different temperature and pressure required for dyeing, it can be divided into normal temperature and pressure dyeing machine and HTHP dyeing machine. According to different dyeing methods, it can be divided into intermittent dip-dyeing machine and continuous pad dyeing machine. In this paper, the dyeing lab machine is classified according to the different temperature and pressure. The commonly used dyeing machine includes IR dyeing machine, winch dyeing machine, jigger dyeing machine , garments dyeing machine and so on. HTHP Dyeing Machine ​ RHS Series IR Dyeing Machine Application ​RHS Series Infra Colour Dyeing Machine is a state of the art dyeing instrument with IR heating, producing accurate sample dyeing and reproducible results. Features Patented IR heating technology at an affordable pri

  Desizing is an important process before dyeing-finishing, the desizing results directly affect the inner and appearance quality of fabric dyeing and printing.  The previous articles  mentioned the identification of sizes, types of desizing agents, and qualitative methods for measuring desizing rates. In this article, let’s take a look at the process of quantitative determination of desizing rate. Quantitative method for starch desizing rate Determination principle Perchloric acid can dissolve starch, starch on fabric can be impregnated with perchloric acid solution and dissolve in the solution. Starch forms a blue complex with iodine in a certain pH range. The maximum absorption wavelength of the aqueous solution of this complex is about 620nm, and it conforms to beer’s law when the starch concentration is in a certain range. So the starch desizing rate can be calculated by determining the starch content before and after desizing by colorimetric method. Main instruments and reagent s