Hydrophilic multifunctional non-woven fabric additives and their products for medical and health

Purpose and significance: The non-woven fabric industry is an emerging industry sector. Now the world is rapidly developing at an annual growth rate of 10%, known as "Chaoyang Industry". Non-woven fabrics are widely used, and are widely used in many fields such as health care, household goods, clothing industry, leather, industry, agriculture and so on. Guangdong is a large province of non-woven fabric industry in China. Its production capacity is more than 300,000 tons, accounting for 1/3 of the total non-woven fabric production in the country, ranking first in all provinces in the country, but there are not many fancy varieties and technical content. Not high, so it is unable to adapt to the rapidly changing market changes, and it lacks the ability to participate in international market competition.

This project selects the medical and health care non-woven products with the largest dosage in the non-woven market and closely related to people's lives as a breakthrough, and develops a multifunctional hydrophilic non-woven polypropylene non-woven hydrophilic additive that is still blank in China at present. (Due to the difficulty of the formulation design and finishing technology of the additives, so far this additive has been imported), and at the same time use it to develop hydrophilic, moisture-permeable and soft multi-functional health care non-woven products, and apply your own The technology improves the quality 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 and demonstrating the development of our province's economy, improving the technical level of our province's nonwoven industry and developing high-tech products.
Market forecast and development trend:
According to the forecast of world production, the sales of all disposable medical and health care nonwoven fabrics in 1995: US $ 2.21 billion, Japan: US $ 591 million, Germany: US $ 395 million, France: US $ 302 million, and the United Kingdom: 2 The total market size is US $ 4.38 billion, and will grow at an annual growth rate of 8-10% in the future. China's non-woven fabric industry is now in a stage of rapid development. Some domestic medical non-woven fabric products have been used in hospitals and homes, and 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 use imported auxiliary raw materials or technologies, which are very passive. Therefore, this project is based on the development of their own raw materials and technologies to produce functional non-woven fabrics, occupy the domestic market, and develop foreign markets. This is a good project that conforms to market development.

Specific research and development content and key technical issues to be solved:
Research and development content: (1) Formula design and screening of hydrophilic, moisture-permeable and soft multifunctional additives (oil agents). (2) Research on the preparation of polypropylene fiber by melt spinning and its oiling process. (3) Research on the post-processing and finishing process of non-woven fabric prepared by dry-laid netting and its oil agent. (4) Develop hydrophilic multifunctional non-woven fabric products and conduct intermediate expansion tests. (5) Evaluation of the nature and function of non-woven fabric products.
Polypropylene is the largest amount of chemical fiber raw material in non-woven fabrics, and it is also the most typical hydrophobic polymer material. To make it have many functions such as hydrophilicity, moisture permeability and softness, one of the most effective methods is to use special Of additives for finishing modification.
The technical key of this subject is:
(1) Molecular design and formula selection of multifunctional oil.
(2) The effective post-processing and finishing technology of oil agent on fiber raw materials and non-woven fabrics.
Forms of providing results and social and economic benefits:
The form of providing results: providing hydrophilic multifunctional oil agent and its related non-woven products.
Socio-economic benefits: At present, the hydrophilic oils used in the non-woven industry are all imported, and the selling price is US $ 6,500 / ton. It takes about 75,000 tons / year to produce polyolefin low-melting hot-melt fibers for non-woven fabrics. Calculated on the basis of 2% of the amount of oil needed 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 multi-functional medical and health care supplies to contribute to improving people's lives and health.