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Nonwoven fabric, method and apparatus for producing the same, and support for nonwoven fabric production

A manufacturing method and non-woven technology, applied in textiles and papermaking, non-woven fabrics, fabric surface trimming, etc., can solve the problems of poor appearance, poor continuous production, disturbed fiber fabrics, etc., and achieve firm network structure and shapeability. Excellent, high formability effect

Active Publication Date: 2016-09-07
KAO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, it is difficult to peel the fiber fabric from the support, resulting in fluffy, poor-looking products
Moreover, continuous productivity is poor
In addition, each small through-hole is 1.0mm to 2.0mm, relatively small, and scattered on the flat part, so it is difficult for air to converge on the small through-hole
Therefore, the air blown to the area where the hole is not provided rebounds, and this rebounded air disturbs the fabric and sometimes even blows the fibers of the fabric away.

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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  • Nonwoven fabric, method and apparatus for producing the same, and support for nonwoven fabric production
  • Nonwoven fabric, method and apparatus for producing the same, and support for nonwoven fabric production
  • Nonwoven fabric, method and apparatus for producing the same, and support for nonwoven fabric production

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Experimental program
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Effect test

no. 1 approach

[0101] as mentioned above figure 1 and figure 2 As shown, the manufacturing method of the nonwoven fabric of the first embodiment is realized by the aforementioned nonwoven fabric manufacturing apparatus 1 .

[0102] First, the fabric 60 is fed by the feeding part 21 to the surface of the support body 10 on which the protrusion-shaped part 10T is formed.

[0103] The fiber material that can be used for the fibers of the fabric 60 is not particularly limited. Specifically, the following fibers etc. are mentioned. There are polyolefin fibers such as polyethylene (PE) fibers and polypropylene (PP) fibers, and fibers using thermoplastic resins such as polyethylene terephthalate (PET) and polyamide alone. Furthermore, there are conjugated fibers having structures such as core-in-sheath type and side-by-side type. Conjugated fibers are preferably used in the present invention. Here, the composite fiber includes a core-sheath fiber in which a high-melting-point component is a c...

Embodiment 1

[0121] Example 1 was produced by the above-mentioned production method of the first embodiment under the following conditions. That is, the fiber of the fabric 60 used the composite fiber of the core sheath structure whose core part is polyethylene terephthalate (melting point: 255 degreeC), and the sheath part is polyethylene (melting point: 132 degreeC). The fabric 60 is conveyed by the support body 10 and the air conveyor 23 provided only on the blowing side of the first nozzle part 11, and the surface of the support body 10 is shaped into unevenness by blowing the first hot air W1 and the second hot air W2. shape. The temperature of the first hot air W1 is set to 80° C., and the wind speed is set to 25 m / sec. The temperature of the second hot air W2 is set to 145° C., and the wind speed is set to 5.0 m / sec. The processing speed for processing into a concave-convex shape is 50 m / min. Also, the fabric 60 has a basis weight of 27 g / m 2 , the thickness is 3.1mm. A test bod...

Embodiment 2

[0122] In Example 2, a nonwoven fabric test body was produced under the same conditions as in Example 1 above except that the wind speed of the first hot air W1 was set to 50 m / sec and the thickness of the fabric 60 was 3.2 mm.

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

Provided is a method for producing non-woven fabrics, wherein a web containing thermoplastic fibers is carried onto a support having a concavo-convex shape (projections and vents), and hot air is blown from above the web toward the support so as to make the concavo-convex shape on the web (5). The hot-air blowing is provided with: a step for blowing a first hot air, and temporarily fusion bonding the fibers of the web by the blowing of the first hot air so as to hold the concavo-convex shape; and a step for blowing a second hot air having a higher temperature than the first hot air, and fixing the concavo-convex shape by fusion bonding the fibers of the web while the concavo-convex shape is held, wherein the concavo-convex shape is provided on the web while the web follows the shape of the support, thereby manufacturing the non-woven fabric.

Description

technical field [0001] The present invention relates to a method for producing a nonwoven fabric, a nonwoven fabric obtained by the production method, a nonwoven fabric producing device, and a support for producing a nonwoven fabric. Background technique [0002] As a conventional nonwoven fabric manufacturing method, there is a method in which a fiber fabric containing thermoplastic fibers is passed between a pair of air-permeable conveyors with concavo-convex at least one side, and the fiber fabric is sandwiched between the conveyors. down for transport. This concavo-convex air-permeable conveyor has a plurality of triangular helical wires, and other triangular helical wires adjacent to each other are inserted between the helices of the triangular helical wires, and the straight wires are passed through and stitched together. The mutually adjacent triangular helical wires are woven into a net-like conveyor, and the triangular helical wires constitute convex portions. In ...

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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Patent Type & Authority Patents(China)
IPC IPC(8): D04H1/541D04H1/736D06C23/04
Inventor 小森康浩川口宏子宫村猛史宫本孝信内山泰树坂涉谷口正洋藤田庄一
Owner KAO CORP
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