Polyurethane Cots Are Not Yet Hot.

In recent years, Polyurethane Cots It has become a noticeable new product in the field of spinning cots. At present, there are domestic enterprises specializing in the development and production of polyurethane cots, and some enterprises that originally produce nitrile rubber rollers have made polyurethane rollers as new projects for scientific research. Textile equipment enterprises hope to seize the opportunity in the new field and lay the technological advantage for the future development.

The excellent abrasion resistance, strength and elasticity of polyurethane cots have been confirmed by some researches. The spinning experiments also show that the polyurethane cots have good spinning properties. However, as a new product, the popularization and application of polyurethane cots is not ideal. What resistance is the development of polyurethane cots, or the inevitable stage of development of this new technology, or what are its own technical defects?

　 Users have doubts.

During the interview, Gao Han Wen, member of the China Textile Engineering Society's cotton textile Specialized Committee, said: "at present, the popularization of polyurethane cots in the market is not particularly good. As a new technology, although the emergence of polyurethane cots is not too short, but there is no mature application, so many enterprises still have a skeptical attitude to move forward.

Gao Hanwen believes that a new product can not be explained only after a short period of experiment. At least half a year or even a year's experiment will help to explain the effect of the new product. "This is where many enterprises are concerned about the polyurethane cots." Gao Han Wen said, "at present, there are some enterprises that have reached the pilot level in the domestic production of polyurethane cots, but there are not many enterprises that reach the pilot level."

Jingzhou Jiufeng Technology Co., Ltd. is an enterprise specializing in the production of polyurethane spinning cots. The polyurethane rollers developed by the company after 6 years have already won the national patent. Li Benning, general manager of the company, believes that the concept of technical personnel in spinning enterprises is also a constraint on the development of polyurethane cots industry.

He said: "new things are often difficult to break through the original framework, polyurethane cots are the same. Compared with NBR roller, polyurethane cots are a brand-new product. Its promotion requires enterprises to have an open concept in the trial process, not to be restricted by various habits of NBR roller cots, and to have a tolerant and open mind to the problems. Its development also needs the great efforts of the people of insight in the industry.

　 Production enterprises must make efforts

　　 Li Ben Ning The biggest advantage of polyurethane cots is its high strength, high wear resistance and high elasticity. This makes the polyurethane cots under the same hardness have longer service life than the nitrile rubber rollers, which greatly prolongs the grinding cycle. In the case of low hardness, polyurethane cots also have high strength and high wear resistance. Low hardness can significantly improve yarn CV value, reduce equipment pressure, reduce equipment wear, break the traditional large pressure theory, achieve energy saving and power saving effect, thereby enhancing the competitiveness of enterprises.

Gao Hanwen also believes that the mature technology of polyurethane cots will have a positive effect on spinning process. Reducing pressure and reducing weight can not only improve spinning technology level, but also help enterprises save energy.

Li Benning believes that at present, Jingzhou Jiufeng needs to do more in-depth research on low hardness and non treatment polyurethane cots. It is understood that in the company's earlier promotion in Hubei, enterprises have long used polyurethane cots. For example, Jingzhou ODA Textile Co., Ltd. has extensively used Jingzhou Jiufeng polyurethane cots for more than two years.

Li Benning said that Jingzhou Jiufeng has just started promoting polyurethane cots in the whole country this year. At present, many enterprises in Shandong, Hebei, Xinjiang, Fujian, Zhejiang and Jiangsu have been conducting small batch and medium batch tests, and the enterprises are quite satisfied with the experimental results.

"I would like to know as soon as possible whether there are any polyurethane cots in the spinning industry in the country reaching more than 10 units," Gao explained. "I think that the use of 10 or more than 5000 spindles can be considered as a standard above the pilot scale. The results of the use of the one or two devices can not explain the problem, and the results of long-term use of pilot scale can explain the problem.

　　 Compact spinning or first breakthrough

If polyurethane rollers are to compete with the widely used nitrile rubber rollers in the future, then the field of compact spinning is the most likely breakthrough for polyurethane cots. On the compact spinning equipment, the polyurethane cots have the advantages of high strength, high wear resistance, high elasticity and low energy consumption.

Gao Hanwen thinks that if the NBR roller is used for compact spinning, the grinding cycle will be very short, only about a month. This is because the compact spinning area has no lateral movement, and the friction on the nitrile rubber roller will be very large. If the polyurethane cots are used, the effect of prolonging the grinding cycle is very obvious.

Li Benning also believes that polyurethane cots are very suitable for compact spinning, and are also suitable for spinning methods such as core spun yarn, siro spinning and polyspun spinning. Due to the characteristics of polyurethane cots, it can fully open the market in the field of compact spinning.

For ordinary ring spinning, Gao Hanwen thinks that the grinding cycle of NBR in common ring spinning is 4~6 months, although the use of polyurethane cots can reduce the grinding cycle, but the effect is not as good as that of compact spinning. However, at present, the capacity of ring spinning is still the largest in China, and the polyurethane cots must enter the market to be a truly successful product.

At present in China Compact Spinning The production capacity is in the growth stage, and the polyurethane cots can fully play their own advantages. First, we have the opportunity to further expand the scope of production practice in the field of compact spinning. With the gradual promotion of compact spinning, polyurethane cots are gradually promoted to ring spinning by virtue of excellent quality and full production practice.

Li Benning said: "polyurethane cots can be said to be a new bud in the field of textile cots, so that enterprises using cots will have more choices. At present, the high wear-resistant and high strength of the polyurethane cots has left a deep impression on the enterprises that have been tried. " Gao Hanwen believes that the future development of polyurethane cots is mainly based on large-scale and long-term use. Now even if it is just applied, it can not jump to conclusions about its future development.