HT Fine Textile Chemical Auxiliary Agent

The dyeing and printing of textile products need to be done in a certain way to remove impurities and oil stains on the cloth surface. This cooking process is often called scouring. And in the refining of various types of infiltration, emulsification, washing, dispersing, wetting function of chemical auxiliaries, called  scouring agent . During the refining process, the scouring agent is through its wetting effect, the weakened adhesion of the oil wax and the fiber in the fabric, and the gradually reduced interface, to make the oil wax fall off the fabric. At this time, the oil wax particles and water contact surface increased, forming a very unstable system, the surfactant in scouring agent has emulsifying and dispersing effect, which is easy to form micelles in water, and the oil wax wrapped in the micelle to form a comparatively stable system, which can prevent the oil grains from being deposited on the fabric. On the other hand, with the help of the ...

Determination of residual fat content 1. Instrument and  Scouring Agent . Oil Soxhlet extractor and carbon tetrachloride. 2. Operation steps. Firstly, to put oil flask of the Soxhlet extractor and 10g sampling in the oven with105 degrees bake for 1.5 hours. And then to take out and cool them in the dryer. Next, to weighed accurately of each (accurate to 0.0001g). The sample which has been weighed to wrapped with the filter paper, and then put it into a reflow extractor of Soxhlet extractor (edge height within the filter paper should not exceed the height of the rainbow Straw reflux), adding about 200mL carbon tetrachloride (the number should be able to make carbon tetrachloride spill over the rainbow straw from 1.5 to 2 times),and then heating in a water bath. Starting the timing from the end of the condenser tube with liquid droplets, the extraction rate is 5~6 times per hour to make the solvent cycle 12 times, and it is finished. Taking about 10mL of carbon tetrachloride washing ...

The forms of defect When the colored spot mark which is the same color of dyeing textile, that is to say color patch, appearing on the dyeing textile with the form as similar in shape or size basically, or irregular in shape or size which is not definite. This kind of defect is hard to repair once producing, which has a great effect on the quality of dyed products, so it should be paid much attention.  The causes The causes leading to color defect can be concluded 3 aspects as following on the whole: (1) The condensation of dyes The appearance of aggregation of larger dyes (or dyes associations) dues to the direct collision of dye molecules. These aggregations of larger dyes are deposited on the fabric during dyeing, resulting in stain defects. The dyeing time: a) The free dye molecules will be re—crystallizing during the heating (or cooling) process to form new grains; b) The dye molecules that have been dissociated will gradually adsorb on the crystal surface of the original dyes...

The  scouring agent  performance test is mainly carried out by evaluating the scouring effect, that is , use the scouring agent in its conditions to refine, and evaluate the scouring agent effect according to the test results of the fabric as follows. 1. Instrument and agent Soxhlet Oil extractor, carbon tetrachloride. 2. Working process Put the flask of Soxhlet oil extractor and 10g cloth sample into in the oven, dry 1.5 hours under 105℃, take out and cool in the dryer, weight (accurate to 0.0001g). Wrap the weighted sample cloth with the filter paper,put into a reflow extractor of Soxhlet extractor (the filter paper edge height should not exceed the height of the siphon), Add carbon tetrachloride about 200mL (the number should be able to spill over the siphon for 1.5 to 2 times), heating in a water bath. Start to time when there is liquid drop in the bottom end of the condenser tube,  the extraction rate should be 5~6 times per hour. the solvent cycle is up to 12 t...

Advanced dyeing and finishing technology: Detailed common quality problems and selection of textile auxiliary Here we mainly discuss on the influence of  textile auxiliary : The quality of  pretreatment (scouring and bleaching)  is related to not only effect on the quality of the end product, but also, as a semi-product, has effect on the quality of the dyeing, printing and finishing. Some experts think that 70% of the unqualified products is caused by improper pretreatment. And in a sense, it may be true. Though the result of dyeing and finishing is still related with the quality of the fabric, the equipment, the operation, the processing technology, the dye and the auxiliary. Now, we focus on the the auxiliary. There are many different kinds of problems related to  textile auxiliaries , here in this article, we mainly talk about three common quality problems of pretreatment and the choose of the auxiliary. 1.  The unsatisfying whiteness and capil...

Textile auxiliaries are necessary chemicals for the production and processing of textiles. Textile auxiliaries to improve the quality of textile products and added value has an indispensable role, it can not only give the textile a variety of special features and styles, such as soft, wrinkle-free, anti-shrink, waterproof, anti-bacterial, anti-static, Etc., can also improve the dyeing and finishing process, play a role in saving energy and reducing processing costs. Textile auxiliaries to enhance the overall level of the textile industry and the role in the textile industry chain is essential. Common  textile auxiliaries Scouring agent, dyeing agent , leveling agent, softener, hair effect lifting agent, polyester low temperature dyeing carrier, substitute alkali, CT powder, chemical fiber oil, high efficiency retreat powder, hydrogen peroxide stabilizer, in addition to silicon, Pilling agent, fixing agent and so on. Accelerate the pace of development of chemica...