Metamaterial spunbond cloth and preparation method thereof

A technology of metamaterials and spunbond fabrics, applied in the field of material manufacturing, which can solve the problems of limiting human comfort, poor air permeability of multi-layer membrane structures, and reducing human body heat dissipation.

Pending Publication Date: 2021-08-24
WUHAN GEWUGANZHI INFORMATION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Due to the poor air permeability of the multi-layer film structure, it is directly attached to the fabric that contacts the human body, which will reduce the heat dissipation of the human body through air circulation, thus limiting the comfort of the human body

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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  • Metamaterial spunbond cloth and preparation method thereof
  • Metamaterial spunbond cloth and preparation method thereof
  • Metamaterial spunbond cloth and preparation method thereof

Examples

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preparation example Construction

[0080] According to the second aspect of the present application, a method for preparing a supermaterial spunbonded cloth is provided, the preparation method comprising:

[0081] Step 1: mixing the polymer base material and micro-nano particles to form a full-spectrum reflective composite material, the average particle size of the micro-nano particles is 100-3000nm;

[0082] Step 2: Extruding the full-spectrum reflective composite material through a melt-blown die to form a thin stream of melt;

[0083] Step 3: The melt stream meets the high-speed hot air flow at the outlet of the melt-blown die head, the melt stream is drawn and refined by the high-speed hot air stream, and spun to obtain supermaterial fibers. The supermaterial fibers evenly fall on the roller of the receiving device to form a supermaterial spunbond fabric.

[0084] In a specific embodiment, after the full-spectrum reflective composite material is mixed, it can be cooled for use. When necessary, the full-sp...

Embodiment 1

[0109] 600g of PET particles and 400g of TiO with a particle size of 0.1μm 2 After the particles are mixed, they are added to the feed port of the twin-screw extruder, and the heating temperature is set to 280°C. The extruded molten casting belt is solidified in a normal temperature water bath, and the casting belt passes through the guide wheel to the slicer for pelletizing to obtain inorganic micro-nano particle doping 40% full spectrum reflective composite.

[0110] After the composite material is dried, it is put into a large screw for melting and extrusion, and the heating temperature is set to 290°C. The extruded melt is filtered through a melt filter, and is quantitatively transported by a metering pump at a speed of 15r / min for spinning and cooling. The supermaterial fibers are obtained by airflow traction and formed into a web on a mesh curtain with a receiving distance of 60cm. The winding speed of the roller curtain roller is 30m / min; the rolling mill is used for ho...

Embodiment 2

[0112] 600g of PLA particles and 400g of TiO with a particle size of 0.2μm 2 After the particles are mixed, they are added to the feed port of the twin-screw extruder, and the heating temperature is set to 200°C. The extruded molten casting belt is solidified in a normal temperature water bath, and the casting belt is passed through the guide wheel to the slicer for pelletizing, and inorganic micro-nano particle doping is obtained. 40% full spectrum reflective composite.

[0113] After the composite material is dried, it is put into a large screw for melting and extrusion, and the heating temperature is set to 210°C. The extruded melt is filtered through a melt filter, and is quantitatively transported by a metering pump at a speed of 15r / min for spinning and cooling. The supermaterial fibers are obtained by airflow traction and formed into a web on a mesh curtain with a receiving distance of 60cm. The winding speed of the roller curtain roller is 30m / min; the rolling mill is ...

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Abstract

The invention discloses metamaterial spunbond cloth and a preparation method thereof. The metamaterial spunbond cloth comprises at least one single-layer fiber spunbond layer; the single-layer fiber spunbond layer comprises metamaterial fibers; the metamaterial fibers are interwoven and overlapped to form pores; in the pores, the pores with the diameter being 100-3000 nm are reflection pores, and the total volume of the reflection pores accounts for 10%-90% of the volume of the spunbond cloth; the metamaterial fibers are formed by a composite material comprising a polymer substrate material and micro-nano particles; and the average particle size of the micro-nano particles is 100-3000 nm. The metamaterial fibers are arranged in an interwoven mode and the micro-nano particles in the fibers are arranged randomly, the spunbond cloth with the metamaterial characteristics is formed, ultra-wideband optical responses of 0.3-2.5 micrometers and 8-13 micrometers are generated based on the photonic design, then solar radiation and human infrared heat radiation are guided and controlled, and photo-thermal regulation and control are carried out on the microenvironment temperature of the cloth and the human skin to realize efficient thermal management.

Description

technical field [0001] The present application relates to the technical field of material manufacturing, in particular to a supermaterial spunbonded fabric and a preparation method thereof. Background technique [0002] With the development of science and technology and the improvement of living standards, people's requirements for textiles tend to be diversified, so various functional materials are applied. Among them, functional materials have attracted more and more people's attention and love because they can improve the comfort of the human body. [0003] Due to outdoor activities and operations, people are often exposed to harmful sunlight, which can cause skin burns, high temperature heatstroke and other health diseases. Therefore, more and more protective products are used for outdoor protection. Many current protective products are usually multi-layer film structures, including reflective layers made of materials with high reflectivity in the solar spectrum range ...

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 Applications(China)
IPC IPC(8): D04H1/56D04H1/542D04H1/559D01F1/10
CPCD04H1/56D04H1/542D04H1/559D01F1/10
Inventor 陶光明曾少宁
Owner WUHAN GEWUGANZHI INFORMATION TECH CO LTD
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