The future development direction of ecological three-proof finishing agents and fluorine-free waterproofing agents

Fluorocarbon additives are usually used to make fabrics water-repellent, water-repellent and oil-repellent. Improper selection will discharge harmful substances such as PFOA (perfluorooctanoic acid and its salts), PFOS (perfluorooctane sulfonate), APEO (alkylphenol polyoxyethylene ether) into the environment, seriously affecting people’s health and the earth’s ecological environment. .

Therefore, the current domestic and foreign markets have put forward increasingly higher environmental protection requirements for water-repellent functional fabrics. For example, the United States has banned the use of chemicals containing PFOS since 2001. The U.S. Environmental Protection Agency (EPA) proposed a PFOA voluntary reduction plan in 2006, planning to ban 100% PFOA emissions by 2015; the European ECOF decree has also banned PFOS. It officially came into effect in June 2008.

In this regard, Chemical Industry has launched Rudolf fluorine-free water repellent and ecological three-proof finishing agent, Huntsman fluorine-free water repellent and fluorine-free three-proof finishing agent, nano fluorine-free water repellent, fluorine-free water repellent and ecological The fabrics treated with the three-proof finishing agent have particularly good water repellency, oil repellency, water stain resistance, high washing resistance (used in combination with synergists), softness, smooth hand feeling, high friction resistance, and do not need to be too high. Baking temperature, no organic halides, no fluorocarbons, no APEO, PFOA, PFOS, in line with EU fabric export requirements.

However, in terms of effect comparison, the fluorine-free water repellent agent and the ecological three-proof finishing agent are still more effective than the eight-carbon water repellent agent and the six-carbon water blocking agent, as well as the eight-carbon three-proof finishing agent and the low-carbon three-proof finishing agent. Much different. Fluorine-free water-repellent agents and ecological three-proof finishing agents have gradually been recognized by customers for their environmental and health advantages. But in actual operation, the water-repellent effect is not good and it is difficult to operate. So everyone must agree with this. The performance of fluorine-free water-blocking agents is less stable than that of eight-carbon water-blocking agents. Clean the sink or bathtub when cleaning, and do not leave any fluorocarbon additives and other non-environmentally friendly additives before making large quantities. To experiment. The effect is also worse than that of eight-carbon water-blocking agent. As for Rudolph’s fluorine-free water-blocking agent, the fabric treated with it has a pre-wash score of 90, while the fabric treated with the eight-carbon water-blocking agent has a pre-wash score of 100. In terms of dosage, the fluorine-free water blocking agent is larger than the eight-carbon water blocking agent. The dosage of eight-carbon water blocking agent is generally 2-5%, while the dosage of fluorine-free water blocking agent is around 4-8%. The same is true for fluorine-free three-proof finishing agents.

The stability, water-blocking and oil-proofing effects of fluorine-free water-blocking agents and ecological three-proof finishing agents are gradually recognized by the market as their technologies mature. It is an inevitable trend in the future for fabrics to be free of PFOA, PFAS and APEO. Fluorine-free water blocking agents and ecological three-proof finishing agents will also lead the new trend of water blocking agents and dominate the future water blocking agents.

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