HT Fine Textile Chemical Auxiliary Agent

Before introducing reactive dye-Sub printing, let’s have an overall understanding of dye. Dye is a certain material to make fiber and other materials coloring. It contains natural and synthetic dyes. Dyes are colored substances. But the material with the color is not necessarily a dye. Dyes are usually dissolved in water. Archaeological data show that dyeing technology has been more than five thousand years of history in India and the Middle East. At that time the dye was taken from the animals and plants or minerals with little treatment. As for dye-sub printing, there are strict requirements to dye. The small directness, low affinity, and good diffusion As it will dry immediately after printing, there will be no problem of balance like  textile dyeing . Therefore, the dye-sub printing with small directness, low affinity, and good diffusion can be used directly. If use reactive dyes with a large directness, the reaction opportunities of active groups and fiber will increase, but t...

Ink Sublimation Printing ink is the key material of dye sublimation printing technology which is mainly composed by the disperse dyes, connecting materials, solvents and a few additives. The dye must have a good sublimation transferability and permeability to reach a certain fastness index. Molecular weight is 23O ~ 380 and sublimation temperature is 180 ℃ ~ 240 ℃. The common printing dye is anthraquinone dyes, azo dyes, and cationic dyes( cationic leveling agent ) . Temperature and time Dye sublimation printing technology requires temperature control in the range of 180 ℃ ~ 230 ℃, the time is about 10 ~ 30s, and at the same time pay attention to the reasonable deployment of temperature and time. Pressure Pressure is also one of the important parameters of dye-sublimation printing technology. If the pressure is appropriate, the gap between the flat fabric and transfer paper are suitable, the transfer coloring effect will be good with a clear pattern and smooth lines. Other factor...

1. Strengthen the pre-treatment, especially the process of boil-out bleaching Using a mild non-caustic oxygen bleaching process(such as oxygen bleach accelerator + H2O2) to avoid the  wet rubbing fastness  affected by fiber brittleness, the rough surface of the fabric and the large friction coefficient of the fabric yarn surface in the process of oxygen bleaching. Strict control of water hardness to prevent the formation of surface lakes, causing the rough feel of the dye, increasing the friction coefficient and decreasing the wet rubbing fastness. The chelating agent, Ca2 +, Mg2 + and other metal ions can be added in the water to decrease the wet rubbing fastness. 2. Fabric can not be boiled with alkali soap after dyeing. Whether use mixed alkali fixation or single Na2CO3 fixation, the fabric must be fully washed with acetic acid 1 ~ 2mL / L in order to achieve fully hydrolysis of flooding, otherwise it will affect the effect of soap washing. 3. Control the quality of soap bo...

Smoothing agent  is a kind of textile auxiliary frequently used. It is made using the formula and synthetic technology at home and abroad. It belongs to a class of novel and unique textile smoothing agents. At present, it is mainly used in wool and other animal fiber and cashmere blended fabric. The smooth agent can be emulsified and will not leave oil stains, but now it can not be used for washing silk products, it has the excellent performance of soft and slippery, etc. It has good elasticity and low yellow degree effect. The smooth agent can be in one bath with cationic softener and crease resistant resin. In common, it is especially suitable for padding and impregnation process. It was weakly positive ion, with super smooth feeling and excellent finishing performance and finishing property, so it is especially suitable for clothing and wool yarn. There is another kind of hydrophilic smoothing agent formula, it is in positive, and the main ingredients are an amino polyether, mod...

1. Methyl silicone oil Methyl silicone oil is the most widely used and large output product in  silicone oil . It is colorless, odorless, non-volatile, insoluble in water, methanol, ethylene glycol, but soluble in benzene, dimethyl ether, methyl ethyl ketone, carbon tetrachloride or kerosene.It has a very small steam pressure, higher flash point and ignition point. Methyl silicone oil has excellent heat resistance, electrical insulation, hydrophobic, physiological inertia and small surface tension. It also has low viscosity temperature coefficient and higher compressive resistance. It can be used in textile, printing and dyeing, thread-making, and it can be used to improve the slippery elasticity of the finishing process of dacron, polyester, dacron. It can be used to treat cotton spinning, increase lubrication in high-speed sewing machine on the continuous line; it can be used for fabric softener, increasing the lubricity of fabric, the fabric smooth sense, fullness, and elasticit...

(1)Chinese standard（GB/T 7573-2009） Weigh 3  2 + 0.05g samples, cut into 5 * 5 mm pieces, add put it into the flask containing 100ml distilled water,  shake flask, the samples will be fully soaked, put the flask on the oscillator for 2 hours ±5min, test the pH of aqueous extract (excluding fabric ) at room temperature, and repeat for 3 times, take the average values of the second and third samples as a result of the final results, accurate to 0.1. (2) EU standards (EN 1413-1998) Weigh 3 2 + 0.05g samples, cut into 5 * 5 mm small pieces, and put into flask containing 100ml of potassium chloride solution (0.1mol/L) or 100ml distilled water. and shake flask samples to make it fully soaked, put the flask on the oscillator for2 hours.  Test the pH of aqueous extract (excluding fabric ) at room temperature, and repeat for 3 times, take the average values of the second and third samples as a result of the final results, accurate to 0.1. (3) Japanese standard (JIS, L, 1096-1999)...