Flame-retardant non-woven wallpaper and preparation method thereof
A flame-retardant and wallpaper technology, which is applied in textiles and papermaking, papermaking, paper, etc., can solve the problems of high price of flame-retardant fibers, increase the difficulty of papermaking, and increase production costs, and achieve good flexibility, complete peeling, The effect of reducing production costs
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Embodiment 1
[0022] Fiber ratio: softwood pulp 50%, hardwood pulp 30%, mixed beating degree 20 0 SR, polyester fiber 20%, 1.5×10mm, base paper weight 100g / m 2 , Dip-coat polyvinyl alcohol, starch and surface sizing agent in the machine, the concentration of the coating solution is 4%, and the coating amount is 6%. Polyvinyl alcohol: starch: surface sizing agent = 4: 1: 0.8 (both refer to the absolute dry weight of the solution), and the base paper weight is 106g / m 2 .
[0023] Coating outside the machine 20g / m 2 , the coating liquid formula, the amount of flame retardant is 60%, the flame retardant is purchased from Hangzhou Tianhao Chemical Co., Ltd. SJ-5 type, the amount of wet strength agent is 20%, the amount of calcium carbonate is 20%, one-time dipping coating molding . The paper index is as follows: quantitative 126g / m 2 , tightness 0.50g / cm 3 , Tensile strength 3.6kN / m, wet strength 1.5kN / m, surface absorption 30g / m 2 , opacity 80%, tearing degree 1600mN vertically, 2000mN h...
Embodiment 2
[0025] Fiber ratio: softwood pulp 40%, hardwood pulp 30%, beating degree 18 0 SR, soybean protein fiber 30%, 3.5D×5mm, base paper basis weight 83g / m 2 , In-machine dip coating of epoxy resin and surface sizing agent = 10:0.5 (both refer to the absolute dry weight of the solution), the concentration of the coating solution is 4%, and the coating amount is 5%. The weight of base paper is 91g / m 2 .
[0026] External coating 30g / m 2 , Coating liquid formula, the amount of flame retardant is 90%, the flame retardant is purchased from Hangzhou Tianhao Chemical Co., Ltd. SJ-PP type, the amount of wet strength agent is 10%, and the second dipping coating is formed. The paper index is as follows: Quantitative 121g / m 2 , tightness 0.53g / cm 3 , Tensile strength 4.5kN / m, wet strength 1.8kN / m, surface absorption 32g / m 2 , the opacity is 80%, the tearing degree is 1650mN vertically, 2100mN horizontally, and the expansion rate is 0.4%. Flame retardant grade V-1.
Embodiment 3
[0028] Fiber ratio: softwood pulp 20%, beating degree 25 0 SR, viscose fiber 80%, 5D×2mm, base paper weight 100g / m 2 , dip-coating styrene-butadiene rubber and surface sizing agent in the machine = 20:1 (both refer to the absolute dry weight of the solution), the concentration of the coating solution is 4%, the coating amount is 6%, and the base paper weight is 106g / m 2 .
[0029] Coating outside the machine 40g / m 2 , Coating liquid formula, the amount of flame retardant is 80%, the flame retardant is melamine phosphate, the amount of wet strength agent is 10%, the amount of calcium carbonate is 10%, and the second dipping coating is formed. The paper index is as follows: quantitative 146g / m 2 , tightness 0.53g / cm 3 , Tensile strength 4.5kN / m, wet strength 1.8kN / m, surface absorption 32g / m 2 , the opacity is 80%, the tearing degree is 1650mN vertically, 2100mN horizontally, and the expansion rate is 0.4%. Flame retardant grade V-1.
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