What are the specific environmental requirements for textile defoamers?

In the textile industry, defoamers, as indispensable production aids, play an important role in ensuring smooth processes and improving product quality. However, with the continuous improvement of global environmental awareness, the environmental performance of textile defoamers is also increasingly valued. In order to meet increasingly strict environmental regulations and customer demands, the environmental requirements for textile defoamers cover multiple aspects, mainly including the following aspects:

Firstly, textile defoamers must be non-toxic and harmless, which means that they will not pose any harm to human health or potential risks to operators and consumers during use. The requirement of being non-toxic and harmless is one of the most basic and important environmental standards for textile defoamers.

Biodegradability is another important indicator for evaluating the environmental performance of textile defoamers. Excellent textile defoamers should be able to be rapidly decomposed by microorganisms in the natural environment, without accumulating in ecosystems such as soil and water, thereby reducing the long-term burden on the environment. This characteristic helps maintain ecological balance and promote sustainable development.

The textile industry generates a large amount of wastewater during the production process, and whether the residual defoamers in the wastewater meet environmental discharge standards is also a key consideration factor. Textile defoamers should be able to be effectively removed or degraded during wastewater treatment, ensuring that all indicators meet national or local discharge standards before wastewater discharge, and avoiding pollution of water bodies.

Volatile organic compounds (VOCs) are one of the common sources of pollution in the textile industry. Textile defoamers should minimize the emission of VOCs during use to reduce pollution to the atmospheric environment. Textile defoamers with low VOC emissions can help improve air quality and protect human health.

In textile printing and dyeing processes, improper use of defoamers may leave defects such as silicon spots or oil spots on the surface of the fabric, affecting the appearance and quality of the product. Therefore, environmentally friendly textile defoamers should have the characteristics of no silicon spots or oil spots, ensuring a clean and smooth surface of the fabric, and improving product quality and competitiveness.

Textile defoamers should avoid adverse effects on water quality during use. Some traditional defoamers may cause water quality to become turbid or produce odors, affecting subsequent treatment processes and wastewater reuse. Environmentally friendly textile defoamers should maintain clear, transparent, and good water quality to provide strong support for production.

In addition to the environmental performance mentioned above, textile defoamers should also have the characteristics of long-term stability. It can maintain good defoaming and foam suppression effects under various process conditions (such as high temperature, high pressure, strong acidity and alkalinity, etc.), without failure or side effects due to changes in environmental conditions. This helps to reduce production costs and improve production efficiency.

In summary, the environmental requirements for textile defoamers include non-toxic and harmless, biodegradable, meeting emission standards, low VOC emissions, no silicon or oil stains, no change in water quality, and long-term stability. Only textile defoamers that meet these requirements can stand out in the fierce market competition and contribute to the sustainable development of the textile industry.