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Hemp fiber and preparation method thereof

A technology of hemp fiber and fiber, which is applied in the field of hemp fiber and its preparation, and can solve problems such as coarse yarn fineness and coarse hemp fiber fineness

Active Publication Date: 2012-09-26
CHINA GARMENT BUYITIANXIA BEIJING TRADING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the coarseness of the hemp fiber used in these two spinning yarns, the fineness of the yarn is also coarse.

Method used

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  • Hemp fiber and preparation method thereof
  • Hemp fiber and preparation method thereof
  • Hemp fiber and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0074] The hemp husk is put into the oxidizing solution, 10 kilograms of water per kilogram of hemp husk (that is, the bath ratio is 1: 10), hydrogen peroxide (according to pure hydrogen peroxide) in the oxidizing solution 2 o 2 Calculation) content is 8g / L, sodium silicate content is 4g / L, urea content is 2g / L, JFC content is 2g / L. Raise the temperature of the oxidizing solution from normal temperature to 90°C at a constant speed, and control the heating time at 30 minutes. After the temperature reaches the temperature, let the oxidizing solution keep warm for 1.5 hours; the oxidized hemp skin is washed with water and then put into the alkali boiling solution. The hydrogen in the alkali boiling solution The content of sodium oxide is 6g / L, the content of sodium silicate is 2g / L, the content of urea is 2g / L, the content of penetrant JFC is 2g / L, the bath ratio is 1:10 (10 kg of water per kg of marijuana), and the temperature is raised to 100°C in 35 minutes. And keep warm for...

Embodiment 2

[0078] The hemp husk is put into the oxidizing solution, 10 kilograms of water per kilogram of hemp husk (that is, the bath ratio is 1: 10), hydrogen peroxide (according to pure hydrogen peroxide) in the oxidizing solution 2 o 2 Calculation) content is 8g / L, sodium silicate content is 4g / L, urea content is 2g / L, JFC content is 2g / L. Raise the temperature of the oxidizing solution from normal temperature to 90°C at a constant speed, and control the heating time at 30 minutes. After the temperature reaches the temperature, let the oxidizing solution keep warm for 1.5 hours; the oxidized hemp skin is washed with water and then put into the alkali boiling solution. The hydrogen in the alkali boiling solution The content of sodium oxide is 6g / L, the content of sodium silicate is 2g / L, the content of urea is 2g / L, the content of penetrant is 2g / L, the bath ratio is 1:10 (10 kg of water per kg of marijuana), the temperature is raised to 100°C in 35 minutes, and the temperature is kep...

Embodiment 3

[0082] Concrete operation is with embodiment 1,2, and concrete reagent consumption and operation parameter are as follows:

[0083] Oxidation: hydrogen peroxide (according to pure H 2 o 2 Calculate) 7g / L, potassium silicate 2g / L, urea 3g / L, JFC 4g / L. The temperature is 70°C, the heating time is 34min, the heat preservation is 1.5h, and the bath ratio is 1:10;

[0084] Soda cooking: Potassium hydroxide 3g / L, potassium silicate 2g / L, urea 2g / L, penetrant JFC 3g / L, bath ratio 1:10, temperature 100°C, heating time 35min, heat preservation 4h;

[0085] Post-treatment: leavening agent (leaving agent BK-100 mixed with urea at 2:1) 4g / L, bath ratio 1:10, temperature 60°C, time 30min;

[0086] Oil supply: white oil 15g, potassium hydroxide 6g, detergent 7g, water 8kg, temperature 80°C, keep warm for 1h;

[0087] Oil humidification: 20g tea oil, 6g potassium hydroxide, 7g detergent, 90g water;

[0088] Stacking: temperature 37℃, time 37h;

[0089] Mechanical opening: the cotton fe...

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Abstract

The invention provides a hemp fiber with a fineness of 1,500-4,000 Nm and the strength of 4-10cN / dtex. The hemp fiber has higher fineness and strength and can be used for spinning by using a dry method and preparing various grades of textile products by blending with other fibers. The invention also provides a preparation method of the hemp fiber, comprising the following steps of: chemical degumming, aftertreatment, stamping, oil feeding, softening, oil feeding and humidification, stowing and mechanical opening, wherein the step of chemical degumming specifically comprises the following steps of: adding hydrogen peroxide, alkali metal silicates, urea and a penetrating agent to water and uniformly stirring; then adding hemp peels; heating up, preserving heat and washing by using clear water; adding alkali, the alkali metal silicates, urea and the penetrating agent to water and uniformly stirring; adding oxidized hemps; and heating up, preserving heat and washing by using clear water. The method can prepare hemp fibers with an extremely high fineness and has low environmental pollution.

Description

technical field [0001] The invention belongs to the textile field, in particular, the invention relates to a hemp fiber and a preparation method thereof. Background technique [0002] Hemp (also known as hemp, also known as hemp, hemp, thread hemp, cold hemp, Hangzhou hemp, etc. in different places) fiber has ecological characteristics such as moisture absorption, breathability, UV protection, antistatic and other natural health functions such as antibacterial and antibacterial , in line with today's green consumption concept, especially hemp textiles have good comfort (no itching) and hygienic properties, and are favored by consumers, making them have a wide range of application prospects in clothing, apparel, decorative household and other fields. [0003] At present, the extraction of hemp fiber generally includes chemical degumming method, biological enzyme degumming method and physical degumming method. Chemical degumming is generally carried out under high temperature...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01C1/02D01G9/00D01G15/02D06M13/432D06M101/04
Inventor 郁崇文喻华吴苏明
Owner CHINA GARMENT BUYITIANXIA BEIJING TRADING
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