The common leveling agents used in printing and dyeing
How to avoid uneven phenomenon is one of the important indexes of printing and dyeing process quality. The Leveling agent is used to make the dye to be evenly dyed on the dyes, without producing other defects such as color stripes, color spots and so on. One of the effects of the leveling agent is to make the dye be absorbed slowly by the fiber, and the second is that when the dye is not uniform, the dark part of the dye will move towards the light color, and finally achieve the uniform dying. Therefore, the two most important functions of the leveling agent are the retarding and migration.In recent years, all kinds of new type fibers are widely used in the dyeing and printing industry. At the same time, with the gradual improvement of the people’s environmental protection consciousness, all kinds of leveling agents have a new development. In this article, it mainly talk about the development of leveling agent for reactive and disperse dyes.Leveling agent for reactive dyesAt present, reactive dyes is the largest proportion of in fiber dyeing. It can have chemical bonding with macromolecular such as cotton, wool and silk. Therefore the soaping and rubbing fastness of dyed fabric is very high. Leveling agent commonly used is non-ionic surfactant, besides, anionic leveling agent and the compound of non-ionic and anionic surfactant is often used in recent years.Leveling agent for disperse dyesPolyester fabricDisperse dyes dyed polyester with good levelness and high fastness. At present, the dyeing process of polyester fiber mainly adopts disperses dyes at high temperature and high pressure. But it is difficult to dye the dark color, and it also causes environmental pollution. Therefore, in the past twenty years, polyester simulation technology and its product development is the most active research topic in the textile industry. Ultra-fine polyester fabric having fast absorption rate, appropriate leveling agent should be added to improve leveling.The Leveling agent should have the following conditions:(1) good retarding effect;(2) good transfer effect;(3) good dispersion effect, especially at high temperature (80 ~ 120 ℃) o(4) do not affect the dyeing rate and color;(5) good stability of hard water and heavy metal ions. Polyester superfine fiberCompared with the ordinary fiber, superfine fiber has a small filament number, big specific surface area and high content of amorphous region features. Superfine fiber is easy to cause uneven dyeing, therefore, choosing the appropriate leveling agent is very important. As a professional leveling agent company, we are offering all types of leveling agents for different fabrics and applications. Welcome to explore more usages and place your orders. HT Fine Chemicals is at your service. HT Fine Chemical Co., Ltd (be called for short "HT"), founded in year 2005, is a large scale high-tech printing & dyeing auxiliaries manufacturer in Qingyuan City, Guangdong Province,China. We have specialized in textile auxiliary chemical for more than 10 years, combines R&D, Production, Sales and Service together.
HT owns large workshops with complete manufacturing facilities and strong R&D capability and inspection labs, and with more than 30 reaction kettles and perfect sewage treatment system, all our products comply with environmental standards, and HT has passed the SGS international certification testing by the third party.HT's main products include formaldehyde free fixing agent, acid fixing agent, multi-scouring enzyme, sequestering agent (CT powder), heat sublimation fastness improving agent, wet rubbing fastness improver, soaping agent, ice cool silicone softener, terpolymer silicone softener, brightening lubricant, softener, etc.HT in line with the aim of the good faith management, we are willing to provide a variety of ways of cooperation (Including the valet processing, incoming sample made and peer exchange advantage products etc.). By virtue of continued technological innovation and product development, HT has partnered with our customers to define the best products, and provide technological guidance and satisfy customers' requirement while minimizing manufacturing cost.HT Fine Chemical Co., Ltd is a fine chemical industry company specializing in the production of printing and dyeing auxiliaries, washing water additives, chemical raw materials. The company ensures higher-quality product than the relevant product standards through the establishment of sound internal quality control system.
HT Fine Chemical Co., Ltd mainly produces the following six series of products:1. knitting and yarn pretreatment auxiliaries2. dyeing auxiliaries3. hand feels finishing auxiliaries4. functional finishing agent5. auxiliaries for denim sizing and washing6. auxiliaries for household chemical fertilizerHF have more than fifty reaction kettle and sewage treatment system to meet the requirements of the state environmental protection :
HT Fine Chemical Co., Ltd has more than one hundred and twenty employees, including30% of technical and r&d team.
HF has strong research and development, product research and application development department:
In order to meet the production requirements of the growing, in 2016, on the basis of the original building, HF has built a new office building:
In order to enrich employees amateur life and enhance the spirit of cooperation between employees, the company organize staff travel every year:

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