Stereo hot air non-woven fabric production method
A technology of hot air non-woven fabric, production method, applied in the direction of non-woven fabric, textile and paper making, etc.
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[0041] Example 1
[0042] Cooperate figure 1 , Figure 2A and Figure 2B As shown, take 1.5dtex*38mm PE / PP bicomponent fiber as raw material. During production, the fibers are unpacked and loosened by a bale opener, and then sent to a carding machine, carded into a fiber web and sent to an oven. The hot air temperature is: 145 ℃, and the hot air frequency is 38Hz. The PE begins to soften and melt, and several bonding points are formed between the fibers. At the same time, due to capillary penetration, the molten PE flows to the core layer PP and bonds with it to form a certain cohesive force, thereby giving the fiber web a certain strength. The consolidated fiber web is three-dimensionally formed by a pair of heated meshing convex rollers and concave rollers to form a three-dimensional perforated non-woven fabric, wherein the protrusion of the convex roller is needle 1, and the area of the root of a single needle is 3.14mm. 2 , the needle height is 3.0mm, and the needl...
Example Embodiment
[0044] Example 2
[0045] Cooperate Figure 3A , Figure 3B and Figure 5 As shown, take 2.0dtex*38mm PE / PET bicomponent fiber as raw material. During production, the fibers are unpacked and loosened by a bale opener and then sent to a carding machine, carded into a fiber web and sent into an oven. The hot air temperature is 150°C, and the frequency of the hot air blower is 45Hz. The PE begins to soften and melt, and several bonding points are formed between the fibers. The consolidated fiber web is three-dimensionally shaped through a pair of heated meshing convex rollers and concave rollers to form a three-dimensional perforated non-woven fabric. It is a bump, and the root area of a single bump is 8.0mm 2 , the height of the bump is 2.5mm, wherein the convex and concave rolls are adjacent to the ironing equipment, the convex roll temperature is 132 ℃, the concave roll temperature is 40 ℃, the German Optris MS infrared thermometer detects that the flat hot air non-wov...
Example Embodiment
[0047] Example 3
[0048] Cooperate Figure 4A , Figure 4B and Image 6 As shown, take 1.5dtex*38mm PE / PP and 2.2dtex*38mm PE / PET bicomponent fibers as raw materials. During production, the two kinds of fibers are opened and loosened by a bale opener and then sent to the corresponding carding machine. The 1.5dtex*38mm PE / PP fiber web is used as the surface layer, and the 2.2dtex*38mm PE / PET fiber web is used as the bottom layer. After the two layers of fiber webs are superimposed, they are sent to the oven, and the hot air temperature is 140 ℃, and the frequency of the hot air blower is 45Hz. The oven temperature is 130°C, and then three-dimensional hot air non-woven fabrics are formed by a pair of heated meshing convex rollers and concave rollers to form three-dimensional hot air non-woven fabrics. The root area is 7.0mm 2 , the height of the bump is 2.4mm, and the root area of a single needle is 2.0mm 2 , the needle height is 2.4mm, the convex roller temperature i...
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