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Non-woven composite material with elastic structure and preparation method of non-woven composite material

A composite material and non-woven technology, applied in non-woven fabrics, textiles and papermaking, medical science, etc., can solve the problems of high cost of elastic polymer raw materials, poor air permeability of non-woven fabrics, insufficient structural stability, etc., and achieve excellent softness. The effect of high degree and breathability, fluffy structure and strong elasticity

Pending Publication Date: 2021-09-24
苏州多瑈新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although these methods have achieved the elasticity of nonwoven fabrics, the above-mentioned elastic nonwoven material technology has the following difficulties: (1) the cost of using elastic polymer raw materials is relatively high, and its structural stability is insufficient; A large amount of latex is used in the combination of woven fabric and elastic film or elastic net, which is not environmentally friendly and often leads to poor air permeability and insufficient flexibility of the nonwoven fabric.

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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  • Non-woven composite material with elastic structure and preparation method of non-woven composite material
  • Non-woven composite material with elastic structure and preparation method of non-woven composite material
  • Non-woven composite material with elastic structure and preparation method of non-woven composite material

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Embodiment 1

[0040] This embodiment provides a method for preparing a structurally elastic nonwoven composite material, the preparation steps of which are as follows:

[0041] (1) Preparation of ultrafine elastic fiber layer: the preparation process is as follows figure 1As shown, polyethylene terephthalate-1,4-cyclohexanedimethanol (k2012, SK Global Chemical Co., Ltd.) and polyolefin elastomer (7050FL, ExxonMobil Chemical) were mixed according to the mass ratio The ratio of 5:5 is physically blended and put into the melt blown testing machine. The specific melt blown process parameters are set as follows: metering pump temperature 260°C, melt blown die head temperature 290°C, screw extruder temperature (zone 1 - zone 4 zone): 260°C, 270°C, 280°C, 290°C; metering pump speed 7r / min, fan speed 45r / min, winding speed 1.7r / min, receiving distance 20cm. The obtained blended fiber has an average diameter of 0.8um and a grammage of 40g / m 2 .

[0042] (2) Preparation of the main fiber layer; th...

Embodiment 2

[0047] The preparation method of a structurally elastic non-woven composite material provided in this embodiment is the same as that of the first embodiment, except that the process parameter of the receiving distance of the heat-shrinkable elastic layer is set to 25 cm.

Embodiment 3

[0049] The preparation method of a structurally elastic non-woven composite material provided in this embodiment is the same as that of the first embodiment, except that the process parameter of the receiving distance of the heat-shrinkable elastic layer is set to 30 cm.

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Abstract

The invention discloses a non-woven composite material with an elastic structure and a preparation method of the non-woven composite material, and relates to the field of non-woven composite materials. The non-woven composite material is formed by blending superfine elastic fibers and main body fibers, has the characteristics of integral structure, large specific surface area, fluffy structure, high elastic elongation and strong tensile restorability, and can be applied to multiple fields of medical protection, personal care, anti-collision packaging and the like. Meanwhile, the preparation method of the non-woven composite material comprises the following steps of (1) preparing a superfine elastic fiber layer; (2) preparing a main body fiber layer; (3) performing composite molding of the integral structure; and (4) performing shrinkage-elasticity finishing. No toxic chemical reagent is used in the production process of the non-woven composite material, and the non-woven composite material has the advantages of being environmentally friendly and harmless to the human body and has the advantages of large-scale production and application.

Description

technical field [0001] The invention relates to the field of nonwoven composite materials, in particular to a nonwoven composite material with structural elasticity and a preparation method thereof. Background technique [0002] In recent years, nonwoven materials have continued to innovate in the selection of raw materials and processing techniques, product performance has been continuously improved, functions have become increasingly diversified, and application fields have continued to expand. Among them, elastic non-woven materials, as a functionalized, technical and composite product of non-woven materials, are widely used in the fields of medical care and clothing due to their excellent resilience properties, such as baby diapers, sanitary napkins, medical bandages, Sportswear, underwear, etc. Nonwoven materials with superelasticity have been favored by many experts and scholars at home and abroad, and have become a research hotspot in the nonwoven materials industry....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D04H1/498D04H1/46D04H1/492D04H1/485D04H1/544D04H1/551D04H1/541D04H5/02D04H5/03D04H5/06D04H3/14D04H3/153D04H3/105D04H3/11D04H3/013D04H3/011D04H3/007
CPCD04H1/498D04H1/46D04H1/492D04H1/485D04H1/544D04H1/551D04H1/541D04H5/02D04H5/03D04H5/06D04H3/14D04H3/153D04H3/105D04H3/11D04H3/013D04H3/011D04H3/007D10B2509/02D10B2509/024D10B2509/026D10B2401/061
Inventor 田琴宋卫民史建宏张恒
Owner 苏州多瑈新材料科技有限公司
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