Purpose, Significance: The non-woven fabric industry is an emerging industrial sector. The world is now growing at an annual rate of 10%, and is known as the “Chaoyang Industryâ€. Non-woven fabrics are widely used and are widely used in many fields such as medical and health care, household goods, clothing industry, leather, industry, and agriculture. Guangdong Province is a large province of non-woven fabrics in China, with a production capacity of more than 300,000 tons, accounting for 1/3 of the country's total non-woven fabric production, ranking first in all provinces in the country, but there are not many varieties of products, technical content. Not high, so unable to adapt to the ever-changing market changes, but also lack the ability to participate in international market competition.
This project selects the medical and health care non-woven products with the largest amount of consumption in the non-woven fabric market and is closely related to people's lives as a breakthrough, and develops polypropylene non-woven multifunctional hydrophilic additives which are still blank in China and have a large amount of use. (Because of the difficulty in formulation design and finishing technology of additives, so far this kind of additives are imported), and at the same time use it to develop multi-functional health care non-woven products with hydrophilic, moisture-permeable and soft, apply themselves The technology improves the grade of products, enters the international market, increases economic benefits for enterprises, and saves foreign exchange for the country. This project is based on the development of its own technology and new products, so it will play a significant role in promoting the economic development of our province, improving the technical level of the non-woven fabric industry in our province and developing high-tech products.
Market forecast and development trend:
According to forecasts of world production, sales of all disposable medical and health care nonwovens in 1995: US$2.21 billion, Japan$591 million, Germany 395 million, France $302 million, UK 2 In the US$100 million, the total market size will be 4.38 billion US dollars, and it will grow at an annual growth rate of 8-10% in the future. China's non-woven fabric industry is now in a rapid development stage. Some medical health care non-woven products produced in China have been used in hospitals and homes. Some products have also been exported to the United States, Western Europe, Japan, Hong Kong and other markets. However, these exported functional non-woven fabrics are all passive using imported auxiliaries or technologies. Therefore, this project is based on the development of its own raw materials and technologies, the production of functional non-woven fabrics, occupation of the domestic market, and the development of foreign markets. This is a good project to adapt to market development.
Specific research, development content and key technical issues to be addressed:
Research and development content: (1) Formulation design and screening of hydrophilic, moisture permeable and soft multifunctional additives (oil agents). (2) Study on the preparation of polypropylene fiber by melt spinning method and its oiling process. (3) Research on the processing and finishing process of the non-woven fabric and its oil agent by dry laying. (4) Development of hydrophilic multifunctional non-woven fabrics and intermediate expansion tests. (5) Evaluation of the properties and functions of non-woven products.
Polypropylene is the most used chemical fiber raw material in non-woven fabrics. It is also one of the most typical hydrophobic polymer materials. To make it hydrophilic, moisture permeable and soft, one of the most effective methods is to use special The additives are modified by finishing.
The technical key to this topic is:
(1) Molecular design and formulation screening of multifunctional oil agents.
(2) Effective post-processing technology for oil raw materials and non-woven fabrics.
Provide the form of results and social and economic benefits:
Provided form of the invention: a hydrophilic multifunctional oil agent and related nonwoven products are provided.
Socio-economic benefits: At present, the hydrophilic oil used in the non-woven fabric industry is imported, and the price is US$6,500/ton. The polyolefin low-melting and hot-melt fiber for non-woven fabrics in the country needs about 75,000 tons/year. Calculated according to the amount of oil required per ton of fiber, it can earn foreign exchange and save 9.75 million US dollars per year. At the same time, the society can obtain hydrophilic multifunctional medical and health care products, and contribute to improving people's living and health.
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