New application of yellow kenaf fiber
Abstract China is a big country producing yellow kenaf. Hongma was originally called kenaf, and later renamed kenaf. China's yellow kenaf planting area is the third in the world, with a maximum planting area of ​​about 10 million mu and an annual output of 1.1 million tons. The traditional yellow kenaf initial processing method is a semi-degumming process. Before harvesting from yellow kenaf to spinning mill, it is necessary to carry out semi-degumming processing to form semi-degummed bundle fibers. If yellow sesame is not degummed, it does not have spinning. Performance; if full degumming, the length of hemp fiber after removing pectin is only 2-6 mm, which is also non-spinable. The length of hemp fiber that can be processed by modern yellow kenaf spinning equipment is semi-degummed yellow. The kenaf bundle fiber, the length of the bundle fiber is more than 1 meter, and the fineness of the semi-degummed yellow kenaf fiber is 300-400 gong. The yellow kenaf is used for processing sacks and packaging cloth with the largest amount of hemp, the highest year in China. It produces 900 million sacks. Since the gradual replacement of plastic woven bags and packaging fabrics, the use of yellow kenaf has been greatly affected. In the textile field, there are many used for carpet backing and color yarn materials. There are also agricultural production of packaging materials, geotextile jute, hemp and jute paper, synthetic resin sheet production, production of cellulose, the straw as a raw material to produce cellulose preparations, can produce viscose cellulose preparations, triphosphate Cellulose, cellulose acetate, carboxymethyl cellulose and microcrystalline cellulose, yellow kenaf fiber reinforced composite materials, and the like. However, the amount of yellow kenaf is still much less than the amount of sacks and burlap used in the past. The planting area of ​​yellow kenaf in China has been greatly reduced. The area planted has been reduced to 1.2 million mu by now. Valuable environmental characteristics, so we must accelerate the development and utilization of yellow kenaf cellulose fiber, and create and expand the application of yellow kenaf cellulose fiber in the field of clothing and decoration. (3) Although the production of yellow kenaf cellulose fiber and its spinning has not yet formed a certain situation, a few units in China have been working hard to develop research, such as Hebei Jiyu Chemical Fiber Co., Ltd., which uses cooking, bleaching, rubber making and spinning. The high-tech process such as silk and post-treatment extracts the cellulose from the hemp material and retains the natural antibacterial substance of the hemp material. It is a truly green new textile material called hemp fiber. Hemp fiber has good spinnability, and conventional spinning equipment can meet the spinning requirements. Henan Zhongyuan Institute of Technology has also developed yellow kenaf cellulose fiber similar to hemp fiber. Conclusion  Our firm was established in 1988, the garments export team, such as Casual Outfits and Sportswear , has more than 6 years of OEM solution experience. ladies yoga sets, womens workout sets, yoga wear supplier Ningbo Ningshing Trading Group Inc. , https://www.apparel-products.com
Key words yellow kenaf cellulose fiber semi-degumming kenaf hemp flax ramie antibacterial mildew green Â
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First, the rapid growth of the world's population is the most pressing problem facing the world. In the 40 years after World War II, the world population increased from 3 billion to 6 billion in 2000. It is estimated that the first 10 years of the 21st century will increase by another 1 billion, an average annual increase of 1 In 2050, the total population of the world will reach 12 billion. By the end of this century, the total population of the world will reach 18-20 billion. The increase in the world population indicates an increase in the total demand for textile materials. At the end of the 20th century, the total population of the world was 6 billion. The per capita fiber demand increased from 2.5kg to 8kg. The per capita fiber consumption in Europe and the United States was 21.5kg and 37.2kg respectively. The Asian fiber consumption capacity is less than 6kg, but according to the growth rate of Asian population and the economic growth rate, the future textile industry market should be dominated by Asia. The total global fiber demand will reach 58 million tons - 62 million tons, if still every Calculated by 8kg, the total fiber volume in 2050 should reach 140 million tons.
Faced with the severe problem of an increase in the total demand for textile materials due to the increase in the world population, the supply of raw materials for the textile industry is becoming increasingly tense compared to the rapid growth of the world population.
How to further develop and fully utilize the resources of natural cellulose fibers in the world is a problem that must be paid attention to while developing synthetic fibers. Among them, there is a reasonable application of how to properly apply regenerated cellulose fibers such as yellow kenaf. Both domestic and international research and development have been carried out.
Second, the production process of Shengma fiber is a new type of regenerated cellulose fiber developed by using a variety of patented yellow-red hemp materials. It has high dry-wet strength, good moisture absorption and permeability, and antibacterial and anti-mildew. The characteristics of the fabric, the fabric has a smooth feel, good drape, bright color, full and smooth fabric texture, is a new, healthy, stylish, green and ecological textile fiber. Hemp fiber has antibacterial and antibacterial functions. It does not need to apply pesticides and insecticides during planting. It is a natural green fiber with certain health functions, and it is comfortable, breathable and has antibacterial function. In China, it has already attracted attention. For example, Hebei Jiyu Chemical Fiber Co., Ltd. uses high-tech routes such as cooking, bleaching, rubberizing, spinning, and post-treatment to extract the cellulose from the hemp material and retain the natural antibacterial properties of the hemp material. Substance is a truly green new textile material called St. Hemp. St. hemp fiber spinnability, conventional spinning equipment can meet the spinning requirements.
1. Yellow kenaf cellulose produces hemp viscose fiber. Although the production process of viscose fiber has environmental problems, it can replace a considerable part of wood. In addition, hemp viscose fiber also has certain health care functions. The hemp viscose fiber can greatly improve the application value of the yellow kenaf. The production process of viscose fiber must be improved, and the toxic gas and toxic waste generated in the production process must be eliminated to ensure that the viscose fiber production process and environment are completely green and environmentally friendly.
2. At present, there is a green production technology that can produce non-polluting pure green bamboo viscose fiber. It is a pulp which is purified by hydrolysis-alkali method and multi-stage bleaching. After artificial catalysis, the bamboo pulp cellulose (crude bamboo pulp) with a cellulose content of about 35% is purified to over 93%. On the basis of meeting the requirements of fiber production, bamboo fiber is made by wet spinning process in chemical fiber factory. The nature of the product is better than ordinary viscose fiber. It is dry and strong. The wet strength is higher than that of ordinary viscose fiber. It has no pollution to the environment. It is completely biodegradable. The bamboo fiber comes from nature and returns to nature completely. This kind of bamboo glue The final product of fiber has many special functions, and it has 70% sterilization function. It can be used to make bath towels, towels, bedding, medical and patient clothing, insoles, pajamas, casual clothes, T-blood shirts, socks, etc. . Â
To sum up, the green production process for producing green bamboo fiber is: raw bamboo - coarse bamboo pulp - fine bamboo pulp - spinning - bamboo fiber - for spinning and weaving of textile mills.
Jute cellulose may also be reproduced in pure green bamboo viscose fiber production technology jute production of viscose cellulose fibers, not only without any pollution to the environment. Completely biodegradable, the production process there is no pollution of the environment . This is a good way to develop our jute cellulose fiber as a high-speed textile and garment raw materials.
3. The locell, tencell and model produced by the Austrian Roentgen Company are all high-resistance textile raw materials produced by using pure wood as raw materials, and the raw materials and products are green, and the water used in the production process is sticky. peptizers are all recovered for reuse, i.e., it is environmentally friendly production process, also has energy saving features. And with lYocell, tencell and model made of fibers such as textile raw materials taking comfort, feel and look good. It is a pity that the Austrian Roentgen Company controls the patent of this production technology, exclusive operation and production, which limits the development of this production technology. However, it is said that China has made new progress in the research and development of this production technology. Perhaps there will be some efforts in the future, and this production technology will have a greater breakthrough and become industrialized. If Roentgen's process can be applied to process and produce yellow kenaf recycled viscose cellulose fiber for the development of textile and garment, not only the characteristics of regenerated cellulose fibers such as lYocell, tencell and model, but also the yellow kenaf cellulose fiber in health care. The advantages of function, comfort, ventilation, antibacterial, antibacterial and anti-mildew function are very good.
4. Development of the application of hemp fiber in the textile industry
(1) Make full use of the development of planting yellow kenaf, bamboo or fast-growing wood in the wild mountain ridge to expand the raw material source of cellulose fiber, especially to increase the planting area of ​​yellow stalk bamboo. In order to expand the development of yellow kenaf and bamboo cellulose fiber and its textiles to make up for the shortage of cellulose fiber, it also meets the above principles.
(2) If the hemp fiber similar to hemp, such as hemp, ramie, ramie, apocynum, etc., and the hemp fiber of the leaf fiber series, sisal and other coarse fibers are used to produce hemp. The amount of cellulose fiber is considerable. It is also considered to change the spinning process of flax and ramie from the current semi-degummed bundle fiber to regenerated cellulose fiber in the spinning process system of cotton spinning, wool spinning and filament, etc., which is higher than the current linen. The backward spinning equipment that can only produce medium and low-yarn yarns of semi-degummed bundle fibers should be more suitable to meet the needs of the market.
5. Spinning test:
1. Basic properties of hemp fiber: fiber length 38.4mm, fineness 1.67TEX, breaking strength 3.8CN, elongation at break rate 24.5, fracture work 6.12CN.mm, moisture regain 8.92% strength 2.3CN
2. The blending ratio of the hemp and the Tencel and combed cotton blends and the spinning results are as follows:
a, hemp 30%, Tencel 10%, combed cotton 60% spinning 14.7tex yarn:
Cv%14.01, detail -50% 13, thick section +50% 71, neps +200% 106, single strong 187.7 CN, strong uneven cv% 9.45.
b hemp 40% polyester 60%: spinning 14.7tex yarn:
Fine yarn strength 287CN Strong uneven 9.6%
c, 30% of St. Hemp, 10% of Tencel, 60% of viscose, and 14.7tex yarn:
Fine yarn strength 161.7CN strong uneven cv%8.99
5. Henan Anyang Yiquan Industry & Trade Co., Ltd. carried out the above spinning test using the hemp cellulose fiber developed by Zhongyuan Institute of Technology, and believed that the yellow-spish cellulose fiber has good spinnability. There is not much difficulty in the spinning process for mass production.
The application of the development of yellow kenaf cellulose fiber in the field of textiles and garments is fully compliant with the requirement of fully utilizing natural fibers to improve the utilization value of yellow kenaf fibers. The development of textile and garment products with yellow kenaf is a new green product developed in recent years. The yellow kenaf cellulose fiber and its textiles have many ecological advantages. Because of its many excellent properties, it has received great attention from the international textile industry. The external textile market is optimistic about the yellow kenaf cellulose fiber products. The yellow kenaf cellulose fiber and its textiles have a good development momentum. The hemp fiber similar to Huanghongma has other marijuana, ramie, ramie, Hemp fibers such as apocynum and other bast fiber series, as well as sisal in the leaf fiber series. It can be used to produce hemp regenerated cellulose fibers like yellow kenaf, which is an important raw material for supplementing increasingly natural fibers. Although ramie and linen can be used to produce some traditional clothing fabrics and decorative items, but because they are semi-degummed bundle fibers, the spinning count is limited, and the production process and equipment are also backward. If the planting area of ​​yellow kenaf is further expanded, the application and development of regenerated cellulose fiber of huanghongma plus ramie and flax in textiles is considerable, especially in the advanced application of low-grade hemp. significance. It should be considered that hemp fiber and its production technology are facing a huge change! In short, it is necessary to regard the development of cellulose fibers such as yellow kenaf in textiles as a very important strategic task to accelerate development.
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