DuPont three-proof Teflon processing technology introduction

1. How to use DuPont three-proof Teflon additive for finishing:

DuPont three-proof finishing agents generally adopt the padding method, first dilute the three-proofing with an equal volume of cold water and then add it to the working solution

Dosage: about 5%-6%. If the requirements are high, the proportion can be increased appropriately.

PH: 5.0-7.0, which can be adjusted with acetic acid. The three-proof finishing agent has better finishing effect in acidic environment.

Rolling rate: 70%, the pressure of rolling should not be too great,

Drying: 110-120℃ two-section oven, after three sections the humidity will be above 185℃

Rolling speed: about 30 yards/Min, not too fast;

2. Things to note:

1. Impurities on the fabric must be removed before finishing, such as wetting agents, coloring aids, slurries, softeners and other surfactants. The residue of silicone defoamer will be significantly reduced

Refusal, which affects the effect of DuPont’s three defense;

2. In order to avoid affecting the finishing effect, mechanical finishing such as rolling, electric finishing, etc. must be carried out before curing, while steaming and steaming processes should be carried out after curing to achieve the best results

Better results. The fleece and suede processes must be processed before finishing.

3. Suggested formula

DuPont three-proof Teflon finishing agent 50g/L

Glacial acetic acid 1g/L (adjust appropriately according to pH value, optional)

Penetrating agent WDN 1-5g/L (for high-density difficult-to-penetrate fabrics, not used for cotton fabrics)

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