Washable dyeable flame-retardant fiber and preparation method thereof

• Main Authors: KONG LINGXIAO, WANG YAWEN, WANG LEJUN, SUN YING, WANG XINHOU, ZHANG HONGJIE
• Format: Patent
• Language: Chinese; English
• Published: 14.06.2024
• Subjects: FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR; LAUNDERING; TEXTILES; TREATMENT OF TEXTILES OR THE LIKE; TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS,FABRICS, FEATHERS, OR FIBROUS GOODS MADE FROM SUCH MATERIALS

The invention provides a washable dyeable flame-retardant fiber and a preparation method thereof, and belongs to the field of flame-retardant fibers. The preparation method comprises the following steps: preparing a flame-retardant treatment agent, preparing a flame-retardant working solution, carrying out primary impregnation, carrying out secondary impregnation, carrying out high-temperature treatment and carrying out post-treatment. The preparation of the flame-retardant treatment agent comprises the following steps: uniformly mixing polyvinyl alcohol and deionized water under a stirring condition, contacting with a preset amount of phosphoric acid, and stirring to obtain a mixed solution; the preparation method comprises the following steps: carrying out microwave treatment on a mixed solution, adjusting the temperature to 90-95 DEG C, sequentially contacting with urea and ammonium bicarbonate, stirring for a certain time, and uniformly mixing with an alkyl coupling agent KH-550, anionic polyacrylamide, l