Water-saving and energy-saving scouring and bleaching process based on fibrilia oxygen bleaching auxiliary agent

A technology of oxygen bleaching auxiliaries and hemp fibers, applied in the field of dyeing and finishing processes, can solve problems such as failing to meet environmental protection requirements, and achieve the effects of improving the unevenness of long pieces, improving the minimum strength and being easy to use.

Pending Publication Date: 2020-12-15
青岛奥洛思新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the above-mentioned patents do not completely get rid of the use of chlorine-containing compounds, and still do not meet environmental protection requirements.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] A kind of scouring and bleaching process based on hemp fiber water-saving and energy-saving oxygen bleaching auxiliary agent, comprises the following steps:

[0062] (1), pickling and neutralization:

[0063] (1) Add 2 g / L non-foaming soap oil into the cooking pot, and after heating up for 5 minutes, add 5 g / L of substituted acid and 2 g / L of sodium citrate into the cooking pot , stir evenly, heat up to 40 degrees and keep warm for 20 minutes;

[0064] (2) adding an amount of 5 g / L of substituted alkali into the cooking pot, adjusting the pH value of the solution to 8, draining after 20 minutes of insulation at 60 degrees, and controlling the bath ratio to be 1:8;

[0065] (two), biochemical modification:

[0066] (1) Add hemicellulose in an amount of 2g / L, non-foaming soap oil in an amount of 2g / L, and sodium citrate in an amount of 1g / L into the auxiliary tank, mix well and pour in After keeping warm at 60°C for 30 minutes in the cooking pot, add ferrous sulfate wi...

Embodiment 2

[0089] A kind of scouring and bleaching process based on hemp fiber water-saving and energy-saving oxygen bleaching auxiliary agent, comprises the following steps:

[0090] (1), pickling and neutralization:

[0091] (1) Add 5g / L non-foaming soap oil into the cooking pot. After heating and running for 10 minutes, add 15g / L substitute acid and 5g / L sodium citrate into the cooking pot , stir evenly, heat up to 40 degrees and keep warm for 20 minutes;

[0092] (2) adding an amount of 15g / L of substituted alkali into the cooking pot, adjusting the pH value of the solution to 9, draining after 20 minutes of insulation at 60 degrees, and controlling the bath ratio to be 1:8;

[0093] (two), biochemical modification:

[0094] (1) Add 4g / L pectinase into the auxiliary tank, 5g / L non-foaming soap oil, 3g / L sodium citrate, mix well and pour in After keeping warm at 60°C for 30 minutes in the cooking pot, add ammonium sulfate in an amount of 3g / L, continue to keep warm at 60°C for 30 m...

Embodiment 3

[0117] A kind of scouring and bleaching process based on hemp fiber water-saving and energy-saving oxygen bleaching auxiliary agent, comprises the following steps:

[0118] (1), pickling and neutralization:

[0119] (1) Add 4g / L reducing cleaning agent into the cooking pot, and after heating and running for 7 minutes, add 10g / L substitute acid and 3g / L sodium acetate into the cooking pot, stir Evenly, heat up to 40 degrees for 20 minutes;

[0120] (2) Adding an amount of 10 g / L of substituted alkali into the cooking pot, adjusting the pH value of the solution to 8.5, draining after 20 minutes of insulation at 60 degrees, and controlling the bath ratio to 1:8;

[0121] (two), biochemical modification:

[0122] (1) Add 3g / L lignin degrading enzyme into the auxiliary tank, 4g / L reducing cleaning agent, 2g / L sodium acetate, mix well and put into boiling water After keeping warm at 60°C for 30 minutes in the pot, add ammonium sulfate with an amount of 2.5g / L, continue to keep wa...

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PUM

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Abstract

The invention relates to the technical field of dyeing and finishing processes, in particular to a water-saving and energy-saving scouring and bleaching process based on fibrilia oxygen bleaching auxiliary agent. The method comprises the following steps of (firstly) carrying out acid washing and neutralizing; (secondly) carrying out biochemical modification; (thirdly) carrying out oxygen bleaching: (1) uniformly mixing an oxygen bleaching auxiliary agent, sodium carbonate, a multifunctional pretreatment auxiliary agent and a degumming catalyst in an auxiliary cylinder, pumping the mixture intoa saucepan, and starting heating operation; (2) adding 1 / 2 process amount of caustic soda flakes and hydrogen peroxide with the mass fraction of 27.5% into the saucepan; (3) when the temperature of the saucepan rises to 90 DEG C, adding the rest caustic soda flakes, controlling the bath ratio to be 1: 8, continuously keeping the temperature at 90 DEG C, operating for 60 minutes, and discharging liquid; and (fourthly) washing with water and neutralizing; and (fifthly) passing through a lubricant. According to the scouring and bleaching process, the fibrilia is high in dye-uptake, good in fastness, bright and full in color, relatively high in spinnability and yarn forming rate, softer in hand feeling, water-saving and energy-saving.

Description

technical field [0001] The invention relates to the technical field of dyeing and finishing technology, in particular to a water-saving and energy-saving oxygen bleaching assistant for hemp fiber. Background technique [0002] Hemp fiber is an excellent fiber in the textile industry. Its fabric not only has good moisture absorption and heat dissipation, but also has good air permeability, and has a crisp and natural style, comfortable and cool to wear, and is deeply loved by consumers. Its spinnable fibers exist in the bast of the hemp stem in the form of fiber bundles. The length of the single fiber of hemp is 10mm to 26mm, and the two ends of the single fiber are overlapped axially or laterally by pectin to form fiber bundles. , between fiber bundles and fiber bundles, bast and xylem are connected by glue. [0003] At present, the bleaching and bleaching process of hemp spun yarn in the hemp textile industry has been continued to use the sub-oxygen bleaching process. Sinc...

Claims

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Application Information

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IPC IPC(8): D06L4/13D06L4/12
CPCD06L4/13D06L4/12
Inventor 尤士华张铭马建伟
Owner 青岛奥洛思新材料有限公司
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