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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.

Active Publication Date: 2015-10-21
XIAMEN YANJAN NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the defective of existing production method, now proposes a kind of three-dimensional hot air non-woven fabric production method

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • Stereo hot air non-woven fabric production method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 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 fiber is unpacked and loosened by the bale opener and then sent to the carding machine, carded into a fiber web and entered into the oven. The temperature of the hot air is 145°C, and the frequency of the hot air blower is 38Hz for penetrating heating. The surface of the fiber is 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, thus 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 protrusions of the convex rollers are needles 1, and the root area of ​​a single needle is 3.1...

Embodiment 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 the bale opener and then sent to the carding machine, carded into a fiber web and entered into the oven. The temperature of the hot air is 150°C, and the frequency of the hot air blower is 45Hz for penetration heating. The PE begins to soften and melt, and a number of bonding points are formed between the fibers. The consolidated fiber web is subjected to three-dimensional molding processing by a pair of heated meshing convex rollers and concave rollers to form a three-dimensional perforated non-woven fabric. is a bump, the root area of ​​a single bump is 8.0mm 2 , the bump height is 2.5mm, and the convex roller and the concave roller are close to the ironing equipment. The temperature reaches 70°C when three-dimensionally forming the convex roll. Finally, the non-woven fabric is cooled and ...

Embodiment 3

[0048] Cooperate Figure 4A , Figure 4B and Figure 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 respectively unpacked and loosened by the unpacking machine and 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. The two layers of fiber webs are superimposed and sent to the oven. The temperature of the hot air is 140°C and the frequency of the hot air fan is 45 Hz for penetrating heating. The consolidated fiber webs are preheated in the preheating equipment g. The temperature of the oven is 130°C, and then a pair of heated meshing convex rolls and concave rolls are used for three-dimensional molding to form a three-dimensional hot-air non-woven fabric. Root area is 7.0mm 2 , the bump height is 2.4mm, and the root area of ​​a single needle is 2.0mm 2 , the...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Abstract

The invention discloses a stereo hot air non-woven fabric production method comprising the following steps of an opening procedure, a carding procedure, a hot air shaping procedure, stereo shaping procedure and a rolling procedure. In the fourth step, a pair of concave and convex rollers engaged with each other and capable of heating is included; temperature of the concave roller reaches more than 45 DEG C when a plane hot air non-woven fabric enters the stereo fixing concave roller. Rolling equipment and unrolling equipment as well as transportation procedures are prevented compared with the secondary stereo fixing method, so energy consumption is reduced, cost is reduced and production efficiency is improved; secondary pollution to the material can be prevented; and effects to non-woven fabric fluffiness and softness due to multi-time rolling tension force can be reduced.

Description

technical field [0001] The invention belongs to the production process of non-woven fabrics, and in particular relates to a production method of three-dimensional hot-air non-woven fabrics. Background technique [0002] At present, non-woven fabrics are widely used in the fields of sanitary products and medical products, such as sanitary napkins, diapers, etc., and three-dimensional hot-air non-woven fabrics have better air permeability, faster absorption speed, and more fluffy due to their three-dimensional open-pore structure. Soft and comfortable. The speed of the hot-air non-woven fabric production line is relatively fast, but the non-woven fabric needs to reach a certain temperature to be shaped during three-dimensional forming, and the production speed is relatively slow. Therefore, there is a certain gap between the production of hot-air non-woven fabrics and the three-dimensional forming speed, and it is difficult to achieve speed synchronization. Therefore, the exi...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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IPC IPC(8): D04H1/54D04H3/14D04H5/06
Inventor 谢继华谢继权
Owner XIAMEN YANJAN NEW MATERIAL CO LTD
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