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Embossed Spunlace Nonwoven Industry Development
- Jul 18, 2017 -

Embossed Spunlace Nonwoven Industry development

Industry development

China's industrial textiles industry, the total fiber processing has more than 9.2 million tons, accounting for the proportion of total textile fiber processing more than 20%, nonwovens production is also more than 3.2 million tons, the growth rate of 10% or more The Which spunlace nonwovens capacity of more than 300,000 tons, there are more than 170 production lines, more concentrated in Zhejiang, Jiangsu, Fujian and other eastern provinces, the width of the main 2.4 to 3.2m, there are more than 4m, and its products Mostly medical and health supplies mainly. Over the past few years, China's spunlace production line every year to increase 16 to 18, mostly domestic equipment. Domestic equipment is cheaper than imports, but the production efficiency, self-control and online testing and other aspects of foreign equipment or have a certain gap. By the economic downturn, raw materials, energy and other environmental impact, this year's growth rate has slowed.

China's production of a number of enterprises Spunlaced nonwovens production equipment, these enterprises in China's rapid development of nonwovens play an important role. In the production of spunlaced nonwovens, high pressure water is used as the power source, so that the fiber in the fiber network tangled to improve the strength of nonwovens. In the process of the network through the flow of water will produce some debris and dissolve some chemical oil, these will be taken away by water. In order to reduce costs and save water, spunlace production in the water to be recycled. In order to ensure the clean water quality of the production of water for purification. Remove mechanical impurities by filtration, avoid clogging water pinholes, and add some chemicals to remove colloidal substances in bacteria and water.

There are some specialized domestic water treatment enterprises, such as Jiangsu Gwangyang, and China's spunlace factory matching. In the water treatment using a certain number of sea sand to do coarse filter, and then filter cloth fine filter to remove impurities in the water. Most of the filter cloth needle bag, but this filter can not be sterilized, can not filter out dissolved substances and colloids. The current separation membrane technology for water purification, the effect is very good. Separation membrane is divided into hollow film, tube film and flat film and other forms, where you can use flat film. The film is made of polyester and polypropylene fabric as a carrier, and a microporous filter film such as polytetrafluoroethylene or polyvinylidene fluoride is added. The pore size of this membrane is adjusted according to need, the diameter of 0.4μ, 0.5μ for the filtration of mechanical impurities, high flux can reach 4t / m2h ~ 5t / m2h, with foreign products.

China's spunlace nonwovens production enterprises higher water consumption, tons of water consumption in the 10 to 20 tons, good business can reach 4 to 5 tons, mainly sand filter backwash and dry evaporation and other consumption, plus The deteriorated water quality needs to be replaced. Excessive water consumption is not only costly, nor does it meet the requirements of circular economy, especially in areas where water resources are tight, so the use of new filtering methods, the use of new efficient filter media, coupled with scientific management will significantly reduce water Consumption, improve the spunlace after the rolling liquid rate can also reduce the amount of evaporation, reduce drying energy consumption.