Types and differences in color fastness - Utstesters.com

-
Color fastness:
Color fastness also known as dyeing fastness, dyeing fastness.It refers to the resistance of textile color to various functions in the process of processing and use.
The degree of fastness is evaluated according to the discoloration of the sample and the coloration of the undyed fabric.Textile color fastness test is a routine test item in the inherent quality test of textiles.
Textiles in the process of its use will be light, washing, ironing, sweat stains, friction and chemical agents and other external effects, some dyeing textiles also through special finishing processing, such as resin finishing, flame retardant finishing, sand washing, grinding, which requires the color of dyeing textiles relatively maintain a certain fastness.
The Color fastness:
Color fastness referred to as color fastness;The color of colored fibers, fabrics, or other pigmented materials that are resistant to the sun, washing, rubbing, perspiration, and other corrosive effects during processing and use.
The color abundance was rated as 5 except R for fastness to light (sun).The higher the series, the better the color fastness.There are two methods for determination of leather: discoloration (change in the color of the leather itself) and contamination of the contact material by stained l.
Fade-out test is the color difference between the leather sample and the untreated test sample uu after the sample is treated according to the specified conditions.The color staining test is to determine the degree of color transfer and dyeing of the white cloth by touching the sample and the standard white cloth according to the specified conditions. The grade is measured by the gray color staining card.
Fastness to staining:
The transfer of dyes from one area to another, usually from the dark part to the light part, occurs in the storage of garments composed of different color parts. This phenomenon is different from sublimation, because it takes place below the sublimation temperature, and this phenomenon also occurs in non-sublimation dyes.Mainly reflected in polyester and other chemical fiber fabric migration, other raw materials are also available.
Color transfer is mainly due to two reasons: one is the dye transfer, especially the disperse, reactive dye floating color and the fiber migration free dye, may be another sample surface of the fiber dyeing;In particular, dark to light color, so as to granular, imprinted retention on the surface of another sample.The other is that the fibers shed under the action of friction and transferred from one sample to another.
Color fastness tester is a professional testing instrument to evaluate the color fastness, you can provide a variety of color fastness tester, welcome to contact us!


Direct: + 86 152 6060 5085
Tel: +86-596-7686689

评论

  1. Kim2020年4月26日 23:33

    Thanks for your sharing. For color fastness test, I recommend this page for your further information. color fastness test

    回复删除

发表评论

此博客中的热门博文

Introduction about 40G QSFP+ SR4 BIDI modules

-
图片
With the development of the networks, upgrading the 10G to 40G networks is the requirement of networks, But there is a very largest problem to build the cable system when upgrading, especially the short distance transmission of 40G. So in order to solve this problem, 40G QSFP+ SR4 BIDI modules produced by engineers… And today, we will introduce this to you , and hope it can be helpful for you! 1. What is 40G QSFP+ SR4 BIDI ? 40G QSFP+ SR4 BIDI is different from the other 40G QSFP+ modules: Other 40G QSFP+ modules (such as QSFP+ SR4 / LR4) use 8 channels to realize 40G transmission, But the 40G QSFP+ SR4 BIDI just use 2pcs 20G channel to reach this function, every channel can transmit and receive the signal from one multimode cable, But also need notice that 40G QSFP+ SR4 BIDI must be used by pairs. 2. How does it work? To realize the 40G QSFP+ SR4 BIDI transmit the signal, need three steps: Step1: Combining four electrical signal to 2pcs 20G electrical signals;
阅读全文

Hantai's New Plan for 2020 | firesleeve-china.com

-
图片
Hello everyone, hope you enjoyed your new year’s holiday.  We,  Hantai , sincerely appreciate your continued support to us in the past and hope to have closer partnership with you in year 2020. Best wishes to you and your families for health and happiness throughout the year. New Year, New Beginning. Since established in 2009, Hantai has entered another decade in 2020. Today, I would like to take this opportunity to share our new plan for 2020 with you, our esteemed business partners. #1. New Production Machines To speed up our production and guarantee a shorter lead time, we plan to update and replace the current production machines with new ones step by step in 2020, especially for the fire sleeve. Besides, to enlarge our product range, we have already set up some new machines at our new plant. Running test of the new machines has been done and all of them can come into service after the CNY holiday in February. #2. New Products After launching the
阅读全文

Oxygen Facial Equipment

-
Our great Oxygen Facial Equipment is a new anti-aging treatment that uses the beneficial properties of pure oxygen for aesthetic and therapeutic purposes. In this aesthetic Oxygen facial device it is scientifically proven that O2 gives a lot of vitality to the cells, helps to eliminate free radicals, as well as reaffirming and rejuvenating the skin, since it stimulates the formation of collagen. Our team of Oxygen facial for aesthetics is not aggressive and is not even contraindicated in any case. This equipment can be worked on any type of skin, dry, oily or normal, both on the face and on other parts of the body: hands, neck, legs, etc. The facial oxygen jet peel machine is a great device at the service of aesthetics, with great benefits at a very low cost, almost at second hand. Very soon, the Oxygen facial machines will become essential in every aesthetic center. This Oxygen facial device for aesthetics is recommended from the age of 30, because it is scienti
阅读全文