HT Fine Textile Chemical Auxiliary Agent

[ Cationic Leveling Agent  General Information] When the cationic dye is used to dye acrylic fiber, due to the negative charge of the third monomer of the acrylic fiber, resulting in the dyeing speed too fast and the spread speed too slow, thus prone to dye flower phenomenon. Especially in the three primaries combination, this phenomenon is more serious, so the requirements higher. In order to solve this problem, it is usually necessary to add leveling agent in the process of dyeing and finishing. The main functions of the leveling agent include the effects of retarding, removing, osmosis and cleaning. cationic Leveling agent The leveling agent is usually surfactant, as a cationic surfactant for acrylic fabric, there are two types: quaternary ammonium salt cationic surfactants and electrolyte leveling agent in 1000 ~ 2000 of polymer molecular weight developed in recent years.  It is a dispersing and  leveling agent  for cationic dyes for acrylic in the same ...

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 r...

Textile auxiliaries  are essential to enhance the added value of textiles, not only make the textile functional, but also make its high-grade, more with the sense of the times. In order to have these advantages, the premise is the fabric dyeing to be evenly permeable, a very effective method that using  leveling agent  which features in slow dye or migration to achieve uniform dyeing effect. In the dyeing process of fiber yarn, line or fabric , in order to promote uniform dyeing without color bars, spots and other added substances, leveling agents are here to use. Most of the leveling agents are water-soluble surfactants, which are divided into two types according to the effect of leveling agent on the diffusion and aggregation of dyes: one is fibrous leveling agent, which has little effect on the concentration of dyes. But the affinity of the fiber is greater than the affinity of the dye to the fiber, so in the process of dyeing, this kin...

Superfine fiber is a new type of synthetic fiber. It is through the polymer chemical and physical modification, application of spinning and processing technology to make ultra fine fiber profile, using composite and mixed fiber; and to apply multiple deformation and new surface treatment and other means, the makes synthetic fiber have various characteristics of natural fibers, and gives the synthetic fiber the comprehensive performance of natural function, style sensory, etc.. The new synthetic fibers, such as single fiber fineness, cross sectional morphology, surface morphology, shrinkage, and polymer structure, are quite different from those of conventional synthetic fibers. Therefore, there are many differences in the process of spinning, weaving, dyeing, and finishing of conventional synthetic fiber and conventional synthetic fiber. This is related to the evenness in dyeing process. Because of the dynamic equilibrium between the three states of the disperse dyes, the transition...

a) The used amount of  high temperature levelling agent  had better ranges from 1 to 1.5g/L; otherwise, it will make the thermal condensation of dye speed out and the dye—uptake reduce and the color changes.  b) It is better to dilute before the usage and mix thoroughly in the warm water under 60℃. After that, to add up dye in case that some of the non-ionic components dissociate from the colloidal particles of the anionic component, and become molecules of tar with the dye molecules. c) To master the material correctly. The condensation association of disperse dyes has a direct relationship with temperature, concentration, time, additives and so on. Therefore, the material should be paid attention to the following points: I.Diffusion of commonly used agent NNO, MF and other solid additives, will have a greater viscosity at high concentration. And if they are mixed with the dye, it will increase the adhesion of dye, causing toning difficulties, and even leaving the nonfe...

There are many methods with various reliability and using range to measure whiteness. Especially in recent years, with the extensive use of fluorescent  optical whitener , the determination of whiteness becomes more complicated. The testing of whiteness can generally be divided into two categories: one is to test the reflectance of each wavelength by the spectrophotometric detector and calculate the L value, a value and b value using a computer, and then get the whiteness value by the whiteness formulas. At present, there are many formulas for calculating whiteness, but there are some defects existing. It is difficult to find a formula for calculating whiteness exactly in accordance with the actual situation. Another type of measurement is using the whiteness meter, which is usually express the whiteness value by reflectance at a specific wavelength. Take type ZBD whiteness meter as an example, if the specific wavelength light is measured by making it through the filter and the wav...

Brief introduction of chemicals for acrylic Dyeing auxiliaries  is mainly included auxiliary for cotton, auxiliaries for polyester, auxiliaries for wool and nylon, auxiliaries for acrylic etc. Properties of acrylic fiber is wool, so called "synthetic wool". With good thermal elastic acrylic (acrylic bulked yarn processing), low density, smaller than the wool fabric, warm and good. Sunlight resistance and weather resistance is very good (ranking first), poor moisture absorption, dyeing difficult. Mainly used for civilian, pure spinning can also be made into a variety of blended wool, wool, blanket, sportswear or artificial fur, plush, yarn, hose, umbrella cloth and so on. Acrylic fiber artificial wool. With a soft, bulky, easy to dye, bright color, light, antibacterial, not afraid of insects and other advantages, according to the requirements of different applications can be pure spinning or with natural fiber, the textile is widely used in clothing, decorat...

High-temperature and high-pressure dyeing is the main dyeing method adopted by Dacron fiber. Owing to these characteristics of Dacron, its put forward special requirement for the  leveling agent . And the difference of semi-finished Dacron fabric on the types put forward a new requirement for the  high-temperature leveling agent . So besides the basic conditions, 130℃ is provided in the process of retarding and migration, some special conditions also need to be provided to semi-finished Dacron fabric. Or the special application requirement to high temperature and high-pressure dyeing will not be met. The basic function of high temperature and high-pressure leveling agent. Hydrophobic disperse dyes is applied in the Dacron fiber dyeing. But its hydrophobic property makes its difficult to dissolve in the water, which is a contradictory thing in the dyeing process in which, the water is the medium. So the dispersing agent and other surfactant is mixed in the dispersing dyeing ...

1, The unsatisfied hand-feeling  2, Yellowing 3, The fabric hydrophilic capacity decline 4, light color spot 5, alkaline spotting 6, Softener stain 7, Silicone oil spot   8, Poor lousiness We have talked about these quality problems above in our former articles, to find them, please go to:  http://www.htfine-chem.com/news/industry-news/choose-finishing-agent.html . Here to discuss more quality problems after dyeing and finishing. 9, Formaldehyde problem The free formaldehyde in the resin or N-hydroxymethyl structure resin may resolve formaldehyde can cause the excess of the formaldehyde. So we should choose low-content formaldehyde resin or non-formaldehyde resin. The sources of  the formaldehyde is varied, including fastness Y, M， Softener Ms-20, S-l。 Water-proof agent AEG. FTC, adhesive PF. Fire retardant and other auxiliary.  And the transfer of formaldehyde from air to fabric also may cause the excess of formaldehyde. 10, Yellowing or discolora...