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A kind of method for extracting ulaca fiber

A kind of urad grass fiber and urad grass technology, applied in the field of textile industry, can solve the problems of difficult removal, poor wrinkle resistance, rough and hard urad grass fiber, etc., and achieve fiber quality without obvious damage, high fiber strength, and bright fiber color Effect

Active Publication Date: 2016-08-24
QIQIHAR UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the high lignin content in Ulagrass fiber, it is difficult to remove, so the Ulagrass fiber produced by the traditional bast fiber degumming process is rough and hard, and has poor wrinkle resistance
With the improvement of environmental protection requirements, reducing the generation and discharge of pollutants in the degumming production of Uralia ulata and reducing resource consumption is an important topic in the research on the development of cleaner production of Uralia ulata. At present, there are no research results on this aspect.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] (1) Ultrasonic pre-treatment: After the harvested Ulagrass is dried in the sun, ultrasonic pre-treatment is performed. Ultrasonic pretreatment power: 10 kHz; time 30 min; temperature 45 °C.

[0024] (2) Warm water immersion degumming process:

[0025] ①Liquor ratio:

[0026] Bath ratio: 1:15:;

[0027] ② Water body temperature:

[0028] The water temperature for soaking and degumming in warm water is 28°C;

[0029] ③ Degumming time:

[0030] Warm water immersion degumming time is 96h;

[0031] ④Initial pH value of water body:

[0032] The initial pH value of the water body is 7;

[0033] ⑤Chemical additives:

[0034] Soak in warm water and add NH to the initial degumming water 4 NO 3 , the concentrations were 0.20%.

[0035] (3) Ultrasonic alkaline cooking assisted degumming:

[0036] Temperature 25°C, relative humidity 75%, then put 4g / L sodium hydroxide solution at a bath ratio of 1:50, heat to 100°C, cook for 20 minutes, take it out, add 1mol / L sodium hyp...

Embodiment 2

[0038] (1) Ultrasonic pre-treatment: After the harvested Ulagrass is dried in the sun, ultrasonic pre-treatment is performed. Ultrasonic pretreatment power: 20kHz; time 20min; temperature 45°C.

[0039] (2) Warm water immersion degumming process:

[0040] ①Liquor ratio:

[0041] Bath ratio: 1:20;

[0042] ② Water body temperature:

[0043] The water temperature for soaking and degumming in warm water is 30°C;

[0044] ③ Degumming time:

[0045] Warm water immersion degumming time is 100h;

[0046] ④Initial pH value of water body:

[0047] The initial pH value of the water body is 6.5;

[0048] ⑤Chemical additives:

[0049] Soak in warm water and add NH to the initial degumming water 4 NO 3 , the concentrations were 0.15%.

[0050] (3) Ultrasonic alkaline cooking assisted degumming:

[0051] Temperature 25°C, relative humidity 75%, then put 6g / L sodium hydroxide solution at a bath ratio of 1:50, heat to 100°C and cook for 20 minutes, take it out, add 1mol / L sodium h...

Embodiment 3

[0053] (1) Ultrasonic pre-treatment: After the harvested Ulagrass is dried in the sun, ultrasonic pre-treatment is performed. Ultrasonic pretreatment power: 30 kHz; time 20 min; temperature 45 °C.

[0054] (2) Warm water immersion degumming process:

[0055] ①Liquor ratio:

[0056] Bath ratio: 1:25;

[0057] ② Water body temperature:

[0058] The water temperature for soaking and degumming in warm water is 30°C;

[0059] ③ Degumming time:

[0060] Warm water immersion degumming time is 100h;

[0061] ④Initial pH value of water body:

[0062] The initial pH value of the water body is 6.5;

[0063] ⑤Chemical additives:

[0064] Soak in warm water and add NH to the initial degumming water 4 NO 3 , the concentrations were 0.15%.

[0065] (3) Ultrasonic alkaline cooking assisted degumming:

[0066] Temperature 25°C, relative humidity 75%, then put 7g / L sodium hydroxide solution at a bath ratio of 1:50, heat to 100°C and cook for 15 minutes, take it out, add 1mol / L sodiu...

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PUM

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Abstract

The invention discloses a method for preparing Uralia sativa fiber. In the method, a biochemical combined degumming method is used to extract Urla ulatidis. Ultrasonic vibration, warm water degumming, alkali boiling and auxiliary effects are organically combined to extract Uralia sativa. The degree of fiber separation after extraction by this method is significantly higher than that obtained by degumming by ordinary warm water immersion, and compared with fibers that have been subjected to high-pressure cooking or chemical degumming, although they are slightly less supple, the fiber strength is higher, the fiber quality is not significantly damaged, and the fiber color is bright. , to further meet the needs of the textile industry. It lays the foundation for industrial production and further theoretical research, and provides an effective way to improve the current problems of insufficient processing capacity of raw materials, low extracted fiber content and high gum content. The method is simple in process and low in cost, reduces the generation and discharge of pollutants in the degumming production of Ulagrass, and reduces resource consumption.

Description

technical field [0001] The invention relates to a method for extracting Ulagrass fiber, which belongs to the technical field of textile industry. Background technique [0002] Ulagrass has extraordinary functions of keeping warm, dehumidifying, and moisture-proof. It can absorb moisture, automatically adjust and maintain humidity, and is warm in winter and cool in summer. The content of free amino acids and inorganic elements such as iron, calcium, and zinc in Ulagrass is extremely rich, which plays a good role in skin maintenance. Ulagrass can resist fungal erosion and parasitism, and is the first of the world's three precious grasses (Ulagrass, Panama grass, and Taiwan grass). There are few researches on the preparation of ulagrass fiber in our country. Due to the high lignin content in the Ulagrass fiber, it is difficult to remove it, so the Ulagrass fiber produced by the traditional bast fiber degumming process is rough and hard, and has poor wrinkle resistance. With ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01C1/02
Inventor 孙颖赵欣姜海艳李杰张芳芳郭鑫宝
Owner QIQIHAR UNIVERSITY