Non woven fabric
a non-woven fabric and non-woven technology, applied in the field of non-woven fabrics, can solve the problems of attachment flame retardant, high risk of falling off, and high risk of falling off, and achieve excellent flame retardancy and flame shielding performan
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example 1
[0093]The non-melting fiber A-1, the thermoplastic fiber B-1, and the thermoplastic fiber C-1 were mixed such that the mass ratios met 3:4:3, and opened with a carding machine to a fiber web (weight per unit area: 98 g / m2). The action of a needle on the fiber web at a needle density of 40 pins / cm2 entangled the fibers to form a combined sheet including the flame-resistant fiber, the PPS fiber, and the PET fiber in the same non-woven fabric layer. Subsequently, the combined sheet was subjected to a heat treatment with a hot air dryer set at a temperature of 150° C. to fuse the flame-resistant fiber, PPS fiber, and PET fiber constituting the sheet and form a fused combined sheet. The fused combined sheet was washed with warm water at a temperature of 70° C. for 6 seconds and then naturally dried to obtain a non-woven fabric with the oil removed therefrom. The measured crimp number of each short fiber taken from this non-woven fabric with tweezers was equivalent to the crimp number of ...
example 2
[0095]The non-melting fiber A-2, the thermoplastic fiber B-1, and the thermoplastic fiber C-1 were mixed such that the mass ratios met 2:3:5, and opened with a carding machine to a fiber web (weight per unit area: 130 g / m2). The action of a needle on the fiber web at a needle density of 40 pins / cm2 entangled the fibers to form a combined sheet including the meta-aramid fiber, the PPS fiber, and the PET fiber in the same non-woven fabric layer. Subsequently, the combined sheet was subjected to a heat treatment with a hot air dryer set at a temperature of 150° C. to fuse the meta-aramid fiber, PPS fiber, and PET fiber constituting the sheet and form a fused combined sheet. The fused combined sheet was washed with warm water at a temperature of 70° C. for 6 seconds and then naturally dried to obtain a non-woven fabric with the oil removed therefrom. The measured crimp number of each short fiber taken from this non-woven fabric with tweezers was equivalent to the crimp number of the raw...
example 3
[0097]The non-melting fiber A-1, the thermoplastic fiber B-2, and the thermoplastic fiber C-2 were mixed such that the mass ratios met 3:3:4, and opened with a carding machine to a fiber web (weight per unit area: 115 g / m2). The action of a needle on the fiber web at a needle density of 40 pins / cm2 entangled the fibers to form a combined sheet including the flame-resistant fiber, the PPS fiber, and the PET fiber in the same non-woven fabric layer. Subsequently, the combined sheet was subjected to a heat treatment with a hot air dryer set at a temperature of 150° C. to fuse the flame-resistant fiber, PPS fiber, and PET fiber constituting the sheet and form a fused combined sheet. The fused combined sheet was washed with warm water at a temperature of 70° C. for 6 seconds and then naturally dried to obtain a non-woven fabric with the oil removed therefrom. The measured crimp number of each short fiber taken from this non-woven fabric with tweezers was equivalent to the crimp number of...
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