How to improve the success rate of one color test 1) If the return color is often produced, the pre-treatment process must be stable and consistent to ensure that the semi-finished product of each production has the same gross, white and pH values. And each time before the dyeing laboratory to carry out samples, using different batches of dyes to make a small sample to compare. If there is no problem, the success rate of a trial run will be high, and even normal production may not be attempted (note that the dyeing process and the machine are the same). 2) If a new color is produced, the laboratory will have to confirm it with a small sample, and the samples must be sampled before dyeing. It is better to have different samplers at the same time. If the two prescriptions are the same, the first prescription is close, and the success rate of one color test is similar. It will be high. How to deal with dyed cloth skirt 1) Drifting pleats are more common in high-count high-density polyester/cotton fabrics and pure cotton fabrics. Due to the high water hardness in production, scales tend to form on the guide roller when it is steamed, and scale marks are formed on long-term production. If the guide roller is uneven, the fabric can be easily pleated. Workers in the production of pleats should be cleaned in time if they are found, and if semifinished products are found to have pleats during dyeing, they should be repaired using a reasonable process. The following describes several pleat repair methods: 1) When dyeing, it is sometimes seen that there are two or more black pleats on the cloth surface after the padding and the black pleats have hairy white tops. The pleats are singeing pleats. After the pleats are baked, a white print will appear, and after darkening, it will be a deep dark pleat. The singeing pleats are formed by ragging when the fabric is not leveled through the crater. The crater is formed due to the high temperature of the crater where the gussets are formed. Because the inside of the crease is not burned, the white slivers are left next to the black pleats. . How to deal with trackprints 1) It often appears in heavy fabrics. It is also tracked during dyeing. However, due to the different forms of formation, the appearance after dyeing is different on the fabric (black and white). The track prints that we usually see are the lazily black, horizontal track marks. The track marks are due to the thick fabrics in the crawler boxes causing the stacking marks. Sometimes, if the tracks are light, they need not be considered. The dyeing machine will not be too obvious. If the pleats are too obvious, just remove the heat and wash it again. However, another type of white track print may be rarely encountered, and it is not clear why this is caused by the track. Short Frock For Ladies,Short Frock,Short Dresses For Women,Short Sleeve Dress,floral dress Taizhou Osley Garments Co.,Ltd , https://www.osleyapparel.com
3) The place of origin of the used dyeing materials should be determined. It is not advisable to change the place of production of dyes and dyes frequently. Because there are differences in the dye quality, color stability, additives, and production processes of various manufacturers, the use of dyes from different manufacturers will make the difference between the first prescriptions for returning singles larger and affect the success rate of color testing at one time.
2) If the fabric is bleached, it is not smoothed by temporary creases or mercerized drying pleats. For lighter fabrics, direct dyeing should not be considered for dyeing effects.
3) Drifting cloth if there are significant pleats, fabric damage is not formed under the dyeing machine is a black pleats, if the pleats fabric damage caused by the bottom of the machine is a white pleated print. For this kind of pleats, technicians can use high-temperature ultra-wide and then mercerized for repair.
4) Drifting is serious and the creases on the fabric are severe. The folds on the fabric have formed aurora stamps. This kind of folds is difficult to handle. Only in the future, the cloths can be stretched at high temperatures and then lightly brushed to make the folds. The ink is ground flat, then boiled and floated, and the damaged fabric fibers are expanded and repaired. Finally, the creases are leveled by a high concentration of alkali mercerization.
5) Technicians must first accurately determine the causes of pleats in the repair of pleats. Different pleat treatment methods are different to avoid wastage of unnecessary technics. For example, mercerized drying pleats are better found, they should be treated in time after the discovery, do not leave the problem before dyeing and then go to shape. If the drying pleats are not handled properly, the shaft can be beaten during mercerization. This will flatten the gussets with the remaining temperature of the draped fabrics, thus saving the pre-dyeing setting.
How to deal with singeing skirt
2) to prevent the occurrence of singeing pleats, first singeing can not be out of pleats, and according to different fabrics to develop a reasonable production process, thick fabrics should be piled or boiled before singeing, so that the singeing into the cloth to reduce the singeing The possibility of pleats, in turn, is the use of wet rags for singeing so as to prevent the formation of pleats at high temperatures.
3) If singeing pleats are found during dyeing, be sure to carry out reprocessing before dyeing. Once the car is driven, black pleats will not be processed after dyeing. The method of pre-treating singeing scallops is very simple, as long as the high-temperature setting will flatten the fabric and then reburn singeing, then low-alkali mercerizing can eliminate singeing.
2) Saturated steam is used to produce safe boiled and tracked caterpillars. Superheated steam is used to heat the water in the caterpillar tank to generate saturated steam to treat the fabric. However, if the water level in the caterpillar tank is too low, the caterpillar will be filled with 240°C high temperature. Steam, so the track plate (roll) will be too high to burn the fabric contact surface to form white spots, and the longer the stacking time, the more white spots, once the failure of the equipment platform, white spots will be difficult to repair, So the white stripe is also caused by the crawler, and it can be classified as tracked. Once the formation of this white strip track crawler is very difficult to remove, stop the car workers to pay attention to the stacking form, thickness, water level (not too little water level can not be flooded boxes).
3) If such stains are found in the dyeing, what should be done? First of all, this track print must be repaired. Since this spot is caused by caterpillars, it would not be a good idea to use the boiled and tracked caterpillars for repairs. Therefore, it is recommended to use hot caustic soda technology and then concentrating alkali mercerizing to increase the penetration rate of the scald. After the repair, the heavy crawler tracks still appear white, and workers can only make up for it by improving the dyeing process.
4) For lighter track prints, two dipped or two rolls or press rolls in the chute can be used to extend the immersion time to reduce track prints.
5) For relatively heavy trackprints, we must use two-bath dyeing. First dyeing with 50% dyeing and dyeing once again can significantly improve trackprinting to achieve customer satisfaction. For particularly heavy track prints, if the list has been bleached, it will be bleached, otherwise it will only be dyed by dip dyeing to maximize the track print.
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