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Method for calculating anti-ultraviolet ability of cloth

A technology of anti-ultraviolet, calculation method, applied in the field of textile, can solve the problem of small ultraviolet absorption, and achieve the effect of effective anti-ultraviolet shielding agent

Pending Publication Date: 2018-12-21
中华人民共和国上海海关 +1
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Problems solved by technology

However, UV shielding agents are only effective for partial frequencies of ultraviolet rays. For example, benzophenone-based ultraviolet absorbers have the functions of preventing long-wave (UV-A) and medium-wave ultraviolet (UV-B) at the same time, but they are not effective for ultraviolet rays below 280nm. smaller

Method used

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  • Method for calculating anti-ultraviolet ability of cloth
  • Method for calculating anti-ultraviolet ability of cloth
  • Method for calculating anti-ultraviolet ability of cloth

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Embodiment Construction

[0021] The present invention will be further described below according to the accompanying drawings.

[0022] Such as Figure 1 to Figure 3 Shown is a calculation method for the anti-ultraviolet ability of the cloth, and the specific calculation method is as follows:

[0023] (1) Establish a representative unit of the cloth fiber weaving structure and divide the finite element mesh;

[0024] (2) Input the spectral lines or bands of fabrics and additives; the spectral band refers to the frequency or wavelength corresponding to the molecular spectrum, which can be used as the database of the calculation method by measuring the molecular spectral band (ie absorption spectrum), which is the basic material data ;

[0025] (3) Set the frequency and intensity of incident ultraviolet rays, incident ultraviolet intensity I (r, 1);

[0026] (4) Establish the non-equilibrium radiation model of the ultraviolet transport of the cloth;

[0027] (5) Use the finite volume method to simula...

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Abstract

The invention relates to the technical field of textiles, in particular to a method for calculating the anti-ultraviolet ability of cloth. The present invention relates to a calculation method for theanti-ultraviolet ability of cloth, and the specific calculation method is as follows: the representative elements of cloth fiber weaving structure being established and the finite element mesh is divided; inputting the spectral lines or bands of cloth and auxiliaries; setting the frequency and intensity of incident ultraviolet rays, and the intensity of incident ultraviolet rays I (r, 1); a non-equilibrium radiation model for ultraviolet transport of fabric being established; a finite volume method being used to simulate the discrete process of reflection, absorption and penetration of ultraviolet rays; calculating the frequency and intensity of ultraviolet rays penetrating the cloth region. The ultraviolet protection capability of the cloth at different time is calculated according to the ultraviolet transmission intensity. Compared with the prior art, the anti-ultraviolet ability of different textile fabrics can be calculated according to the specific algorithm according to different kinds of textile fabrics, so that the anti-ultraviolet ability of different textile fabrics can be determined according to the strength of the anti-ultraviolet ability of different textile fabrics.

Description

technical field [0001] The invention relates to the technical field of textiles, in particular to a method for calculating the anti-ultraviolet ability of cloth. Background technique [0002] In recent years, a large number of chemical substances have destroyed the ozone layer, a natural barrier against ultraviolet rays in the atmosphere. Studies have pointed out that for every 1% decrease in the ozone layer, the incidence of skin cancer will increase by 3%. Although the textile itself has a certain anti-ultraviolet performance, the performance cannot meet the actual protection needs, and it is necessary to add an ultraviolet shielding agent to the textile to reduce the harm of ultraviolet rays to the human body. Researchers have carried out a lot of research on ultraviolet shielding agents and fiber microstructures, and developed various ultraviolet absorbers, reflectors and other additives, as well as various optimized textile fiber microporous structures and weaving struc...

Claims

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Application Information

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IPC IPC(8): G06F17/50
CPCG06F30/23
Inventor 段冀渊严波余红雨龚莉王鑫鑫
Owner 中华人民共和国上海海关
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