Crimping fiber elastic non-woven fabric and manufacturing method thereof

A manufacturing method and technology of non-woven fabrics, applied in textiles, papermaking, non-woven fabrics, etc., can solve the problems of high price, limited product development and application, difficult processing of physical properties of elastic raw materials, etc., and achieve good bulkiness and tensile strength. Excellent, good softness effect

Inactive Publication Date: 2014-05-14
JIAXING UNIV +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Early elastic nonwoven materials were produced by a single polymer elastomer, which was expensive, which limited the development an

Method used

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  • Crimping fiber elastic non-woven fabric and manufacturing method thereof
  • Crimping fiber elastic non-woven fabric and manufacturing method thereof
  • Crimping fiber elastic non-woven fabric and manufacturing method thereof

Examples

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[0032] The implementation of the present invention will be described in detail below in conjunction with the drawings, but they are not enough to limit the present invention, and are only examples. At the same time, the advantages of the present invention will become clearer and easier to understand.

[0033] This patent uses polyisoprene (1) (melting point 36°C) and polyethylene (2) (melting point 140°C). The two components of the fiber cross section are distributed according to the eccentric core sheath structure, and the ratio is 1:4, such as figure 1 Shown; using melt spinning process, such as image 3 As shown in the twin-screw melt extrusion spinning process, the raw material polyisoprene (1) passes through the hopper 11 and the hopper 12 and is added to the melt extrusion devices (16), (17), and the polyethylene (2) passes through the hopper 11 and The hopper 12 is also added to the melt extrusion device (16), (17), after melt extrusion and tube-type drafting (14), (15), t...

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Abstract

The invention discloses crimping fiber elastic non-woven fabric and a manufacturing method thereof. The cross section of each crimpled fiber contains two thermoplastic raw materials with different melting points, the two thermoplastic raw materials refer to polyisoprene and polyethylene, and the melting point deviation exceeds 100 DEG C. The two raw materials are distributed in the cross section direction according to a parallel structure or an eccentric core sheath structure or an orange section structure. A melt spinning tubular drafting technology is adopted, and in the fiber spinning process, for the reason that the heat shrinkable properties of the two raw materials are different, the fibers can be twisted in the cooling process. In the cooling drafting process, a high-speed rotating electrode is used for enabling a drafting tube with a thread structure to be rotated, the fibers are further driven to rotate, and accordingly high crimpiness fibers can be obtained. After the fibers are laid to form a net, the fibers are solidified to form the non-woven fabric through a needle-punched or hydroentangled technology. The crimping fiber elastic non-woven fabric has excellent elasticity and can be widely applied to the fields of medical treatment, sanitation, clothing, industry and the like.

Description

technical field [0001] An elastic non-woven fabric material and a manufacturing method thereof, in particular to the field of elastic non-woven fabrics with spirally crimped fibers. Background technique [0002] Non-woven fabrics have developed rapidly in recent years. The global demand for non-woven fabrics will grow at a rate of 6.9% per year. With the increase in demand and consumption of non-woven fabrics, the performance requirements for non-woven fabrics are also getting higher and higher. Especially for elastic non-woven fabrics, although the production process is complicated and difficult, and the high manufacturing cost restricts the development, the "supply" is far from enough to "demand". [0003] The research on elastic nonwoven materials abroad is earlier. Japan's Kanebo Limited produced thermoplastic polyurethane elastic nonwovens through a cross process between spunbond and melt blown; Kimberly-Clark applied for a patent as early as the 1990s and developed a ...

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): D04H3/14D04H3/11D04H3/105
Inventor 陈光林
Owner JIAXING UNIV
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