1. Impregnating and drying method to produce flame-reta […]
1. Impregnating and drying method to produce flame-retardant fabric: The process flow is: dipping→drying→post-treatment, which is to immerse the fabric fabric in the flame retardant liquid for a certain time, and take it out and dry. Sometimes the flame retardant finishing can be carried out in the same bath as the dyeing process.
2. Paving and baking method to produce flame-retardant fabric: This method is the most widely used in the flame-retardant fabric finishing method. The process is: padding → pre-baking → baking → post-treatment, its immersion liquid is resistant A flammable solution suitable for flame retardant finishing of cellulosic fabrics.
3. Coating method to produce flame retardant fabric: It is to mix the flame retardant into the resin for processing. According to the different mechanical equipment, the blade coating method, the casting coating method and the calender coating method. Different flame retardant fabric products use different processing methods.
Scraper coating method: The slurry mixed with the flame retardant is directly coated on the fabric with a doctor blade. Most of the flame retardants are first made into a solution or emulsion and then applied by casting coating method: the high polymer casting film is pressed and attached to the fabric, which is suitable for large curtains and civil engineering products calender coating method with high flame retardant content, which will be high. The polymer is formed into a film on a calender and then bonded to the fabric. Generally, a mixture of a polyvinyl chloride resin, a polyvinylidene chloride resin and a copolymer of such a resin and a flame retardant is used, which is mainly used for flame retardant finishing of engineering tents.