Has a soft, do not fade, while anti-pilling sweaters, coats, everyone is both simple and extravagant dress winter requirements. Among the 2014 State Technological Invention Award second prize project, there is a sound quite a mouthful, professional invention - novel copolyester MCDP continuous polymerization, spinning and dyeing technology, using it can be manufactured to meet the above conditions and energy saving "magic fabric" and thus help us to achieve this long-term, though small, but difficult to achieve the aspirations of the dress.

The project jointly carried out by Donghua University and Shanghai Alliance Kyrgyzstan Synthetic Fiber Co., Ltd., the project leader, engaged in chemical fiber research Donghua University professor Gu Lixia, China's annual production of 40 million tons of polyester fiber, the world's total more than 70% of large capacity continuous polymerization melt spinning polyester production capacity has more than two-thirds of the total, and most of the production of conventional polyester fibers. Polyester is mostly semi-rigid molecular structure, compact fiber, dyeing and feel are poor. Improved fiber dyeing polyester fiber is an important function of the direction, there has been the problem is difficult to control the polymerization, the fabric needs to base reduction, energy consumption and emissions bottleneck problem is not resolved, seriously affecting the application of modified polyester fiber technology . Among them, the polyester fiber of homogeneous isomorphic serious, difficult to upgrade, urgent need to solve large-capacity functional polyester continuous polymerization key technologies.

New copolyester MCDP continuous polymerization, spinning, dyeing and finishing technology to solve the polyester homogeneous isomorphism problem, breaking the bottleneck of polyester production energy consumption and emissions. This project developed "super soft and easy to dye polyester fiber products" have atmospheric boiling dye without alkali treatment of low-carbon environmental characteristics, ultra-soft feel, good moisture absorption and anti-pilling performance significantly imitation cotton and other effects.

In Gu Lixia opinion, another major significance of this invention is energy saving. This aspect refers to the new polyester products using low-temperature synthesis reaction in the polyester, polyester and high temperature reaction of the original product requirements compared to the energy consumption has reduced certain extent, in the spinning process in both the drying temperature spinning temperature, the heating temperature should be lower than conventional polyesters. Especially in the dyeing process, the new polyester products using atmospheric boiling dyeing process without alkali reduction treatment step.

On the other hand refers to the new polyester products can be used to process them cashmere. Gu Lixia presentation, cashmere scarce and expensive, even though the market is known as "all cashmere" coat, often only 10% cashmere content. Relates to the production of cashmere goat breeding industry, since goat eating grass too difficult to restore growth, long cashmere manufacturing industry has brought no small environmental protection. The new polyester fiber materials made of very soft, and post-cashmere blend in and feel the comfort and very similar to pure cashmere, cashmere and therefore the process can not only reduce the price of cashmere products, but also help to protect the grass.

New copolyester technology industrialization also was a great success, also took the initiative to find a company recently Gu Lixia, hope the new polyester fiber materials can be used in the production of cashmere fabrics. Gu Lixia agreed to requests for cooperation, forthcoming research in this area, it is estimated will take several months. Previously, the novel polyester products have been successfully used to make cashmere sweater cashmere process them. It is reported that as early as 2006, Gu Lixia and her team began preparing for the development of this issue. 2009, included in the national "Eleventh Five-Year" Technology Support Program, the subject was officially launched, completed and passed the final acceptance in 2013. Now, this project has applied for Chinese invention patent 10, apply for international patents 3. In 2014, this technology has already earned $ 9.096 million.