CN1526860A

CN1526860A - Prepn process and use of hemp fiber

Info

Publication number: CN1526860A
Application number: CNA031574459A
Authority: CN
Inventors: 张黎云; 张一粟; 张剑锋; 任厚荣
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-09-22
Filing date: 2003-09-22
Publication date: 2004-09-08

Abstract

The present invention is preparation process and use of hemp fiber. Stem of wild or planted fiber plant, such as flax, ko hemp, jute, hemp, ramie and kendir is first soaked in the mixed solution of six kinds of chemical material for seven days, and then processed through water washing and drying to obtain the hemp fiber. The hemp fiber thus produced is white, bright and firm, and may be used in producing wall paper, fabric and other product.

Description

The preparation method and its usage of flax fibre

Technical field

The present invention relates to fiber-like, specifically, relate to that family such as flax, hemp, ramie, jute, bluish dogbane, Pueraria lobota fiber crops plants or the preparation method and its usage of wild flax fibre.

Background technology

China is textile fiber material resource-rich country, and in the last few years, the output of main textile raw material such as the cotton of China, wool, flax, hemp and ramie, silk cocoon and raw silk, chemical fibre etc. was high always at the forefront in the world.China once was that world textile is produced flourishing country, also was the world manual wool spinning development country early.But the output of China large natural fabric raw material cotton, price and grade fluctuation at present is big, has more or less influenced the ability that takes part in international competition.Silk is China's tradition national treasure, and the Silk Road that several generations open up had once promoted the development of China's economic civilization and exchanging of China and foreign countries' culture in history.Yet since viscose silk and terylene thread came out, " queen " status of traditional silk was just little by little tied up, in the face of challenge from strength to strength.

The use amount of chemical fibre in the whole textile fiber materials of China reached 53-55%, and the approach of getting " green " fiber has only the new fiber species of exploitation, as the kudzu fiber.

The method of tradition processing kudzu fiber is: earlier the kudzu stem is placed in the steam copper, uses boiling water decatize 1-2 hour, the kudzu stem is placed on bubbly water 1-2 days clearly again, with plastic film the sealing of kudzu stem was fermented 3-4 days then, last, peel fiber, wash driedly, dry again, also can extract fiber in this way, but energy consumption is big, program is more, and method is loaded down with trivial details again, therefore, demand seeking a kind of method urgently, making flax fibre from natural rattan becomes and will one of deal with problems.

Summary of the invention

The objective of the invention is to remedy the deficiencies in the prior art part, and provide a kind of preparation easy, the preparation method and its usage of the flax fibre of better performances.

The objective of the invention is to realize by following measure:

The preparation method of flax fibre is the fiber that is extracted from the rattan of the fiber crops of wild or tame kind, and by weight, filling a prescription is:

10000 parts of rattans

Auxiliary material 50-150 part;

After earlier auxiliary material being mixed, put into clear water reserviors, accent pH is 12-13, then rattan is immersed wherein, rattan and water weight ratio are 50～70: 100, and room temperature was soaked 6-8 days, when pH is 6.8-7.2, pull rattan out, peel fiber, clear water is cleaned, and dries or dry to get final product.

Auxiliary material is to contain NaOH, sodium carbonate, compound phosphoric acid sodium, urea, sodium metasilicate and sodium sulfite, and each part accessory formula is made up of following weight percentages:

Raw material weight percentage

NaOH 94-96

Sodium carbonate 0.5-1.5

Compound phosphoric acid sodium 0.5-1.5

Urea 0.5-1.5

Sodium metasilicate 0.5-1.5

Sodium sulfite 0.5-1.5.

In above-mentioned prescription, can add an amount of enzyme, to shorten soak time.

Flax fibre is weaved cotton cloth, wallpaper and other purposes.

Raw material is introduced:

1, rattan: as the Pueraria lobota of green plants, the stem that exposes on soil is called the kudzu stem, and the root below soil is called the root of kudzu vine.Bluish dogbane, flax, hemp, ramie, jute mostly are artificial cultivation, refer to the bast fiber that is exposed at the stem above the soil, are rattan, and its fiber is rich in gloss, and be powerful good.

2, NaOH: slough with flax fibre inside and outside the waxy substance, organic acid, pectin substance, nitrogen substance, ash content that link to each other and other materials except that fiber.

3, sodium carbonate: synergistic function is arranged with NaOH.

4, compound phosphoric acid sodium: each industrial chemicals is uniformly dispersed in solution.

5, urea: the accelerated reaction process, protect flax fibre not to be degraded simultaneously.

6, sodium metasilicate: except that having the synergistic function, the impurity in the solution is had certain suction-operated, thereby increase the whiteness of flax fibre with NaOH, sodium carbonate.

7, sodium sulfite: flax fibre protective agent.

8, cellulase, hemicellulase, pectase utilize the activity and the selectivity of enzyme, allow fiber and other separating substances as early as possible, thereby raise labour efficiency.

9, the intensity of flax fibre, toughness:

Jute: fracture strength average out to 0.25～0.55N/tex, breaking ductility average out to 4%～6%;

Flax: fracture strength average out to 0.20～0.40N/tex, breaking ductility average out to 3%～5%;

Hemp: fracture strength average out to 0.25～0.60N/tex, breaking ductility average out to 4.5%～6.5%;

Ramie: fracture strength average out to 0.35～0.46N/tex, breaking ductility average out to 5%～7%;

Pueraria lobota fiber crops: fracture strength average out to 0.20～0.46N/tex, breaking ductility average out to 4.5%～7.5%;

Bluish dogbane: fracture strength average out to 0.20～0.50N/tex, breaking ductility average out to 4%～6%.

The flax fibre performance indications: fiber is white, and is glossy, and fastness is good.

The present invention has following advantage compared to existing technology: without fuel, equipment investment was little when the inventive method was extracted, and it is simple to do manual work, fiber is white, and glossy again, fastness is better, be the ideal material of weaving, papermaking, concrete advantage is listed in following (is example with the Pueraria lobota flax fibre):

1, raw material easily purchase, cheap.

2, simple, the method for equipment is easily learned.

3, turn waste into wealth: kudzu belongs to discarded thing, and the kudzu of wild or tame kind can be gathered in four times every year, and to the no considerable influence of root of kudzu vine growth.

4, economic benefit height: kudzu fiber per kilogram price is more than 60 yuan, as plants one mu of rattan, and only kudzu fiber income surpasses a lot of times of other crops just more than thousand yuan.

5, social benefit is big: Yin Ge is the medicine-food two-purpose legume, but root of kudzu vine starch, can be used as medicine; FI puerariae can be relieved the effect of alcohol; Ge Yeke carries chlorophyll and dietary fiber; Kudzu do fiber can be used as weave cotton cloth, wallpaper and other purposes, add simple, the extensive management, cold-resistant, drought-enduring of this kind plantation, belong to high-quality, high-efficiency agriculture kind, so all parts of the country are greatly developed.The twice-laid wallpaper that extracts with this law has exported the Japan and the U.S., is subjected to foreign trader's consistent favorable comment on toughness and color and luster.Therefore, social benefit of the present invention is fairly obvious.

Specific implementation method

Enumerate an embodiment below, the present invention is further specified.But the present invention is not only limited to these embodiment.

Embodiment 1

0.57 jin of NaOH, with each 0.006 jin of sodium carbonate, compound phosphoric acid sodium, urea, sodium metasilicate and sodium sulfite, after totally six kinds of industrial chemicals mix, put into 100 jin clear water, and to transfer pH be 12-13,60 jin of kudzu stems all immersed in the above-mentioned clear water room temperature again, soaked about 7 days, when the pH value is 7, pull the kudzu stem out, peel fiber, clean with clear water, dry or dry and get final product.

Build the pond in the place that has abundant water resources, can adorn water preferably also can draining, soaks the pond of water or digs pit and take the all-purpose adhesive dress water that bondd good with plastic sheeting for farm use.

The flax fibre that other is made as flax, hemp, ramie, jute and bluish dogbane, method is with embodiment 1.

Flax fibre of the present invention can be used to weave cotton cloth, wallpaper and other purposes.

Claims

1, the preparation method of flax fibre is characterized in that it is the fiber that is extracted from the rattan of the fiber crops of wild or tame kind, by weight, filling a prescription is:

10000 parts of rattans

Auxiliary material 50-150 part;

After earlier auxiliary material being mixed, put into clear water reserviors, accent pH is 12-13, then rattan is immersed wherein, rattan and water weight ratio are 0.5～1.5: 100, and room temperature was soaked 6-8 days, when pH is 6.8-7.2, pull rattan out, peel fiber, clear water is cleaned, and dries or dry to get final product.

2, the preparation method of flax fibre according to claim 1 is characterized in that, auxiliary material is to contain NaOH, sodium carbonate, compound phosphoric acid sodium, urea, sodium metasilicate and sodium sulfite, and each part accessory formula is made up of following weight percentages:

Raw material weight percentage

NaOH 94-96

Sodium carbonate 0.5-1.5

Compound phosphoric acid sodium 0.5-1.5

Urea 0.5-1.5

Sodium metasilicate 0.5-1.5

Sodium sulfite 0.5-1.5.

3, flax fibre as weave cotton cloth, the application of wallpaper and other purposes.