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Fiber or fabric for shielding electromagnetic wave and preventing ultraviolet, and preparation method thereof

An anti-ultraviolet and electromagnetic wave technology, applied in the direction of fiber type, fiber treatment, natural fiber, etc., can solve the problems of weak combination of colloidal solution and fabric, poor shielding and anti-ultraviolet function, and easy shedding of colloidal solution, so as to achieve good ultraviolet shielding Effect, stable washing fastness, and the effect of improving blood viscosity

Inactive Publication Date: 2007-10-24
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a fiber or fabric for shielding electromagnetic waves and anti-ultraviolet and its preparation method, so as to solve the problem of poor combination of colloidal solution and fabric, poor washing fastness and easy falling off of colloidal solution in the prior art. , poor shielding and UV resistance

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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  • Fiber or fabric for shielding electromagnetic wave and preventing ultraviolet, and preparation method thereof
  • Fiber or fabric for shielding electromagnetic wave and preventing ultraviolet, and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] A. Use FeCl with a concentration of 43.4mmol / l at 80°C 3 The solution was adjusted to pH 1.7 with NaOH and HCl solution, and hydrolyzed to α-Fe 2 o 3 Colloidal solution;

[0040] B. Treat the polyester fiber at 100°C for 2 hours in the dyeing machine;

[0041] C. Bake at 120°C for 8 hours.

[0042] According to SJ20524-95 "Test Method for Material Shielding Effectiveness", the electromagnetic shielding effectiveness test is carried out on polyester treated at 100 °C. This standard is an electronic industry standard, and it is the same as the test method of ASTM4935 in the United States. Select 30MHz, 100MHz, 300MHz and 1000MHz respectively. The shielding effectiveness value is tested under the frequency. These four frequencies basically represent the electromagnetic wave radiation frequencies that people often encounter in life. 30MHz is a critical frequency value, and the radiation frequency of general household appliances is above 30MHz. The radiation frequency o...

Embodiment 2

[0046] Study on UV shielding effect

[0047] Use FeCl with a concentration of 6.2mmol / l (1#) and 24.8mmol / l (2#) at 60°C 3 120ml of the solution was used to prepare the required colloidal solution, and polyester (6cm*10cm) was treated at 130°C for 2 hours in an infrared high-temperature and high-pressure dyeing machine, and then baked at 180°C for 8 hours. Test the UV transmittance before and after finishing the polyester, as shown in Figure 1.

[0048] It can be seen from Figure 1 that after ultrafine α-Fe 2 o 3 The UV transmittance of polyester treated with colloidal solution is significantly reduced, and it has a good anti-ultraviolet effect, and the greater the concentration, the better the effect. With 24.8mmol / l FeCl 3 α-Fe 2 o 3 The ultraviolet transmittance of the colloid solution treated polyester is below 1% in the range of 200-350nm.

Embodiment 3

[0050] Effect of Soaping on the UV Shielding Effect of Fabrics

[0051] Concentration is the FeCl of 24.8mmol / l (2#) among the embodiment 2 3 The polyester treated with the colloidal solution prepared by the solution 120ml was washed with 100ml of 5g / l standard soap solution at 40°C for 30min. The comparison of the ultraviolet transmittance before and after washing is shown in Figure 2 below.

[0052] It can be found from Figure 2 that the UV shielding effect of the fabric is almost unchanged, indicating that the ultrafine α-Fe 2 o 3 The particles have better fastness in polyester and have better washing resistance.

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Abstract

The invention discloses a fabric for screening electromagnetic wave and resisting ultra-violet rays, as well as its preparing process, wherein the fabric is prepared from alpha-Fe203 colloidal solution through processing in dyeing machines.

Description

technical field [0001] The invention relates to a fiber or fabric for shielding electromagnetic waves and anti-ultraviolet rays and a preparation method thereof, in particular to a fiber made of α-Fe 2 o 3 Colloid solution-treated fiber or fabric for shielding electromagnetic waves and anti-ultraviolet and its preparation method. Background technique [0002] With the development of modern science and technology, materials with a single performance can no longer meet people's needs. The development of nanotechnology and the development and marketization of a series of functional nanomaterials have brought opportunities for the development of multifunctional healthy textiles. Using various special properties of nanomaterials to fundamentally change the original physical, mechanical and chemical properties of chemical fibers, a series of excellent composite fibers suitable for different purposes have been obtained, such as: anti-ultraviolet fibers; antibacterial, antibacteri...

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): D06M11/28D06M11/57D06M11/64D06M101/32D06M101/34D06M101/02
Inventor 陈小立郭立民陈少梅孔祥国李登新毛志平朱泉
Owner DONGHUA UNIV
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