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Three-in-one yarn fast bleaching method

A three-in-one yarn technology, applied in bleaching products, liquid/gas/steam yarn/filament treatment, textiles and papermaking, etc., can solve the problems of large water resources, long process time, and different bleaching processes, and achieve Hairiness assurance, reduction of hairiness, and stable quality

Active Publication Date: 2009-05-13
GUANGDONG ESQUEL TEXTILES CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Dye a cylinder of cheese in a dyeing vat with a diameter of 1800mm, the yarn weighs 850kg, and the liquor ratio is 3.3;

[0036] The whiteness requirement is: 155 (computer value);

[0037] The cylinder yarn production process is as follows:

[0038] 1. After the dyeing vat is filled with water to a low water level, the main pump starts to run, and the motor speed of the main pump is set at 600 rpm;

[0039] 2. Select the scouring and bleaching formula suitable for high temperature and high pressure;

[0040] Hydrogen peroxide (concentration is 27.5%): 7g / L;

[0041] Hydrogen peroxide stabilizer: 0.8g / L;

[0042] Chelating agent: 1g / L;

[0043] Refining agent: 1g / L;

[0044] NaOH (solid, 100% pure): 2g / L;

[0045] Fluorescent whitening agent: 0.5%

[0046] 3. The dyeing vat is pumped into the chemicals in the scouring and bleaching formula at one time and then heated up;

[0047] 4. Heat the dyeing vat to 115°C and keep it warm for 20 minutes before draining wat...

Embodiment 2

[0052] In a dyeing vat with a diameter of 1800mm, a vat of beam yarn is cast and dyed, the yarn weighs 600kg, and the liquor ratio is: 4.7;

[0053] The whiteness requirement is: 160 (computer value);

[0054] The cylinder yarn production process is as follows:

[0055] 1. After the dye vat is filled with water to a low water level, the main pump starts to run, and the motor speed of the main pump is set at 800 rpm;

[0056] 2. Select the scouring and bleaching formula suitable for high temperature and high pressure:

[0057] Hydrogen peroxide (concentration is 27.5%): 8g / L;

[0058] Hydrogen peroxide stabilizer: 0.8g / L;

[0059] Chelating agent: 1g / L;

[0060] Refining agent: 1g / L;

[0061] NaOH (solid, 100% pure): 2g / L;

[0062] Fluorescent whitening agent: 0.6%

[0063] 3. The chemical additives in the scouring and bleaching formula are pumped into the dyeing vat at one time and then heated up;

[0064] 4. Heat the dyeing vat to 115°C and keep it warm for 25 minutes b...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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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...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06L3/02D06B3/09D06L4/12D06L4/13D06L4/60
Inventor 程鹏肖军何韵湘
Owner GUANGDONG ESQUEL TEXTILES CO LTD
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