Three-in-one yarn fast bleaching method

Abstract

The invention relates to a three-in-one yarn quick bleaching method, which combines with characteristics of high temperature, high pressure, low water level scouring and bleaching in one bath process and ultra-short flow, wherein in the whole scouring and bleaching process for yarns, the temperature is between 110 and 130 DEG C, the pressure is 1.5 to 3.0bar, the bath ratio is between 1 to 3 and 1 to 7, the rotating speed of a main pump of a dyeing cylinder is 600 to 1,300rpm, the scouring and bleaching time is 10 to 30 minutes and the water adding time is 3 to 4 times, meanwhile, an optimized high-temperature and high-pressure hydrogen peroxide process is used. The yarns processed through the method have remarkable reduction in strength loss and hair feather, the production cost, processing time, sewage discharge and energy consumption of scouring and bleaching white yarns are reduced greatly since the characteristics of high temperature, high pressure, low water level scouring and bleaching in one bath process and ultra-short flow are used.

Description

technical field [0001] The invention relates to a three-in-one rapid yarn bleaching method, in particular to a three-in-one rapid yarn bleaching method combining high temperature and high pressure, low water level scouring and bleaching in one bath and low pump speed, belonging to the textile printing and dyeing industry. Background technique [0002] The textile industry is the pillar industry of my country's current economy, and the textile printing and dyeing industry has always been a major consumer of water resources. Along with the consumption of water resources, a large amount of wastewater is produced. The treatment cost of these wastewater is very high. If it is directly discharged without treatment, It will cause serious pollution to the ecological environment, especially rivers and groundwater resources. There are several methods for traditional yarn bleaching, such as: high temperature and high pressure dyeing machine skein bleaching, bobbin high temperature and h...

AI Technical Summary

Problems solved by technology

There are several methods for traditional yarn bleaching, such as: high temperature and high pressure dyeing machine skein bleaching, bobbin high temperature and high pressure bleaching, bobbin cold bleaching, double box high temperature and high pressure hank yarn bleaching, high temperature and high pressure hank yarn boiling and bleaching one bath method, high temperature and high pressure bobbin bleaching One-bath method of boiling and bleaching, high-temperature crawler-type skein bleaching, high-temperature jet-type skein bleaching, hydrogen peroxide skein steaming bleaching, and high-temperature bleaching of skein in a yarn pot, etc. The bleaching methods use different equipment and the bleaching process is also different. , Traditional yarn hydrogen peroxide scouring and bleaching generally adopts a process of 100-110°C, and the general scouring and bleaching time is 45-90 minutes. The process takes a long time and consumes a lot of water resources.