Requirements for process conditions for flame retardant finishing of polybenzene cotton
Tag:
Polyben pure cotton flame retardant fabric
1. Determination of flame retardant concentration
In In the process of formulating the process, it should be determined according to the thickness of the fabric and the liquid squeeze rate;
2. The moisture content
After the fabric is dried by padding with flame retardant, it must have a certain humidity to facilitate the cross-linking reaction between ammonia and the flame retardant on the fabric during ammonia fumigation. Flame retardant and washable. The moisture content should be monitored at any time during the production process and adjusted at any time. Too little moisture content will lead to insufficient cross-linking and the flame retardant effect will not be washable. Too much moisture content will lead to excessive cross-linking, a hard feel, and color changes. big.
3. Determination of ammonia flow rate
Ammonia consumption per kilogram of flame retardant The amount of gas is theoretically certain, but in the actual production process it should be slightly excessive to ensure sufficient cross-linking. Usually, the flow rate of ammonia gas is too small, which will lead to insufficient cross-linking and poor flame retardant effect and poor washing resistance; the flow rate is too large, resulting in waste and ammonia leakage, resulting in a harsh working environment. In practical applications, the flow rate of ammonia should also be adjusted according to the thickness of the fabric and the amount of flame retardant to achieve better flame retardant effects.
4. The concentration of oxidant
After the flame retardant is cured by ammonia fumigation, it is To make it more stable, it is usually achieved by padding with hydrogen peroxide. The amount of hydrogen peroxide should be determined according to the thickness of the fabric and the amount of flame retardant. The speed of padding oxidation solution should not be too fast to ensure that enough hydrogen peroxide remains on the fabric, and then neutralized and soaped off after ventilation and oxidation. The oxidation time should not be too long, otherwise the strength of the fabric will be reduced.
：City
AAVBBCNVM,N. KJO
Disclaimer:
Disclaimer: Some of the texts, pictures, audios, and videos of some articles published on this site are from the Internet and do not represent the views of this site. The copyrights belong to the original authors. If you find that the information reproduced on this website infringes upon your rights, please contact us and we will change or delete it as soon as possible.
AA
