China Pingmei Shenma Group has developed caprolactam ammoxime production technology and pferred the technology with intellectual property into industrialization.

According to Dr. Dou Xiaoyong, an energy and Chemical Research Institute of Pingmei Shenma Group, the new caprolactam project in China is basically based on ammonia oxime process. The core of the process is titanium silicalite molecular sieve catalyst.

Domestic enterprises need to import the catalyst from abroad, and the import price is about 2 million yuan / ton after tax.

In order to break the monopoly of caprolactam production technology, in 2010, Pingdingshan Shenma Group planned and built 200 thousand tons / year caprolactam project at the same time, the Research Institute of energy and chemical engineering launched the research project of "caprolactam new process research and development".

After four years of unremitting efforts, significant progress has been made in the research and development of caprolactam.

The project team members have carried out in-depth research on catalysts synthesis and preparation, and developed an excellent ammoxime catalyst.

The catalyst has

Gao,

And so on. The pilot and industrialization experiments have been completed.

"The catalyst we developed has many performance indicators higher than imported products, and its price is less than half that of foreign countries.

200 thousand tons / year

After the project is put into operation, it will save 60 million yuan a year. "

Pingtan Shenma Group energy and Chemical Research Institute, nylon chemical research institute director Li Hong said.

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The surface treatment of printed fabric is very important. Ink jet printing only needs to be colored on the fabric surface. The fabric structure determines the surface structure of the fabric, thus affecting the ink jet printing effect. The fabric with high density is lighter than the fabric with low density.

From the purpose of fabric surface treatment, the acid, base and catalyst needed to dye the dye can not be added to the components of the ink.

There are also certain requirements for the fineness of the pattern, which prevents ink droplets from infiltrating on the fabric. On the one hand, it can reduce the discharge of waste water and pollutants, and on the other hand, improve the ink jet printing effect.

The process of sizing is cotton fabric, sizing, drying, ink jet printing, drying, steaming and washing.

The influence of different surface treatment processes on the K/S value of inkjet printing is also different. Proper sizing process is the key to improving the depth and brightness of inkjet printing.

Plasma treatment process: fabric to atmospheric plasma modification, ink jet printing, drying, baking, and finished products.

Plasma treatment has a certain timeliness, combined with inkjet printing machine, can achieve continuous production.

Ink jet printing is a technology that endows fabric with color and pattern. Processing the surface of fabric printing can not only improve the ink jet printing effect, but also reduce the dosage of chemicals, so as to achieve the purpose of reducing energy consumption, water consumption and waste water COD.

The quantitative single side surface treatment technology only deals with the printing surface of fabrics, and applies quantitative inkjet printing chemicals according to the printing effect.

At this stage, we should develop corresponding fabric surface treatment chemicals, processes and equipment for fabric structure, dyestuff type and inkjet printing equipment.