A kind of preparation method of spunlaced regenerated leather for automobile interior skin
A technology for automotive interiors and regenerated leather, applied in the direction of textiles, papermaking, non-woven fabrics, etc., can solve the problem of not giving full play to the more direct and powerful help of the material preparation stage to the material molding stage, and the lack of integration of material preparation and molding processing Planning, low production efficiency and other issues, to achieve the effect of environmental protection, enrichment categories, and reduce congestion
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Embodiment 1
[0049] (1) 60Kg of cowhide fiber prepared by cowhide leftovers with a water content of 15% and 9Kg of 4080 fiber with a skin-core structure are accurately weighed, and are sent into the opener 101 for mixing and opening.
[0050] (2) Feed mixed fibers for air-forming. A layer of continuous 4080 fiber mat with a thickness of 50 μm is pre-laid on the output curtain, and then a four-curtain cross-folding method is used to lay the web on the 4080 fiber mat. Divide the one-way trip of the net-laying trolley into five sections, the length ratio is 1:2:4:2:1, and the corresponding speed ratio of the net-laying trolley is 1.12:1.06:1:1.06:1.12.
[0051] (3) Before the laid fiber web is sent to the spunlace area for reinforcement, it is pre-humidified by the clamping pre-humidification method of the perforated roller and the net delivery curtain.
[0052] (4) The pre-wetted fiber net enters the spunlace area, and a total of seven spunlaces are used. The hole diameter of the orifice pl...
Embodiment 2
[0057] (1) 60Kg of fibers prepared from cowhide scraps with a water content of 20% and 12Kg of N720 fibers with a sheath-core structure are accurately weighed, and after mixing, rough opening and fine opening are carried out respectively.
[0058] (2) Feed the mixed fiber and card it into a web.
[0059] (3) if figure 1 As shown in 108, a layer of N720 fiber mat with a thickness of 30 μm is pre-laid on the output curtain, and then the N720 fiber mat is laid on the N720 fiber mat by double-clamping method. Divide the one-way trip of the net-laying trolley into five sections, the length ratio is 1:2:4:2:1, and the corresponding speed ratio of the net-laying trolley is 1.12:1.06:1:1.06:1.12.
[0060] (4) Before the spunlace reinforcement of the paved fiber web, it is pre-humidified by double-net clamping, and the pressure of the pre-wet spunlace 113 is 25 bar.
[0061] (5) The pre-wetted fiber net enters the spunlace area, and a total of seven spunlaces are used. The hole diame...
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