Research And Development Of Key Technologies For Biomedical Tussah Silk Fibroin Materials

Lu Shenzhou has been studying silk fibroin for biomedical materials for many years, especially for the development and utilization of tussah silk.

The project has invented a high molecular weight and bioactive tussah silk fibroin dissolution technology. It has conquered the technology of preparation, structure and biodegradation rate control of the three dimensional materials of tussah silk fibroin, and successfully developed the silk protein wound dressing products, which has filled the gap in this field.

Main innovation points of the project

1. the dissolution technology of tussah silk fibroin was invented, and the molecular conformation and pformation rule of tussah silk fibroin were elucidated, which laid a scientific foundation for the research and industrialization development of biological and medical tussah silk fibroin materials.

2. the three-dimensional material of medical tussah silk fibroin was developed to solve the technical problems of material structure control.

3. it is proved that tussah silk fibroin has obvious biological activity and excellent biocompatibility.

4. the silk fibroin wound repair product was successfully developed.

The project has established a biomedical tussah.

A complete set of technical systems for bioactive materials can be used to develop and repair a variety of biomedical products, such as skin, blood vessels, cartilage and nerve, so as to benefit the vast number of patients.

And the application fields of textile products.

The prospect is broad.

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Recently, there are plenty of raw cotton in the mainland, and small and medium-sized textile enterprises in Sichuan and Chongqing are buying small quantities of Xinjiang cotton locally.

Because of the different purchasing channels and pportation channels, and the difference of cotton quality, the price of cotton enterprises is also more chaotic.

At present, the mainstream price is about 1.52-1.55 yuan / ton, which is about 300 yuan higher than that of Shandong's Xinjiang cotton.

Related textile enterprises are constrained by insufficient funds and can only passively bear the pressure of high cost cost.

A small number of well funded textile enterprises still go to Xinjiang to make their own purchases, and individual spinning enterprises have their own ginning plants in Xinjiang.

According to the introduction, the purchase of seed cotton is self rolling, the price is not low, the lint cost is 14 thousand yuan / ton, but the quality is good, the railway freight pport to the enterprise is 900 yuan / ton, the highway pportation is about 1300 yuan / ton, but later it can get the subsidy of 500 yuan / ton of the cotton, and the related spinning enterprise still feels worthwhile.

General enterprise funds are generally tight, can not be done.

The polyester staple market has fluctuated slightly in recent years. Hui Wei Shi polyester staple fiber has stabilized after rising. Recently, the delivery price was 8500 yuan / ton, and a textile company introduced it to 8650 yuan.

According to the introduction of textile enterprises, the actual freight cost is 200 yuan, the manufacturer actually gives 50 yuan, Sinopec polyester staple fiber 8500 yuan, and China made polyester staple fiber is still stable, the paction price is 7100-7300 yuan / ton.

This week a variety of textile enterprises in the adjustment and quotations, most varieties of price reduction 0.10-0.20 yuan / m, only individual varieties quoted price is flat.

According to information feedback from various member enterprises, the current market of yarn and cloth continues to slump, and it is very difficult for enterprises to operate. First, cotton prices are down, and when and where the bottom is unknown. Cotton production and planting area will not be able to stop the trend of Cotton falling.

Two, the price of yarn and cloth continues to sink, and the loss of textile enterprises' capital is serious.

Government statistics show that textile industry profits are rising, but all of them are losing money to textile companies.

Three is the shortage of enterprise funds, yarn and cloth sales difficulties are also reflected in the recovery of goods difficult.

A few months' acceptance is good.

So called small and micro enterprise loans, spinning enterprises can not afford loans.

Recently, a small number of Sichuan textile enterprises have been completely cut off because of the broken capital chain and no money to purchase raw materials.

This week, half line and whole line fabrics are still popular. In the quotation of each spinning enterprise, T65/C35 42/2x21 124x69 63 "polyester cotton half line card" (large scale blending) is quoted at 10.10-10.40 yuan / m, Zhonghua blending price is 9.50-9.70 yuan / M; T65/C35 32/2x32/2 100x53 63 "anti-static full line twill (Dahua) quoted price is RMB yuan / meter.

Generally speaking, most spinning enterprises are basically in the production and sale of skew fabrics, some spinning enterprises have even eliminated the twister.

According to the introduction of related textile enterprises, the products are rare and expensive. Now the fabrics are sold well, and other spinning enterprises want to change too late.