Preparation method of easy dyeing flame-retardant non-woven fabric
A technology of flame retardant non-woven fabric and dyeing agent, which is applied in the field of building decoration materials, can solve the problems of low dyeing performance and production efficiency, complicated process of flame retardant non-woven fabric, etc., and achieves good average product performance and improved flame retardant performance. , Enhance the effect of longitudinal and transverse tensile strength
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[0020] The present invention will be further described below:
[0021] A processing technology for flame-retardant non-woven fabrics, characterized in that it comprises the following steps:
[0022] (1) Put the flame-retardant fiber and polyester into the shredder for shredding;
[0023] (2) insert dyeing agent in above-mentioned step 1;
[0024] (3) heating, the heating temperature temperature is 270 ℃;
[0025] (4) mixing and stirring the raw materials and the dyeing agent of the above-mentioned step 3;
[0026] (5) heating and autoclaving the mixture stirred in step 4;
[0027] (6) Utilize the U-shaped PTC electric heater for drying treatment;
[0028] (7) curl treatment;
[0029] (8) sanding treatment;
[0030] (9) Cut and pack.
[0031] The average particle size of the crushed material in step (1) is 5mm.
[0032] In step (2), the dyeing agent is a mixture of Congo red and methylene blue.
[0033] The hot pressing treatment temperature described in step (5) is 25...
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