Luminous textile fabric preparation method based on laser annealing technology

Abstract

The invention relates to a luminous textile fabric preparation method based on laser annealing technology, the method comprises the following steps: S1, luminescent materials are evaporated and deposited on a textile fabric base material, so that a luminous thin film is formed on the textile fabric base material, S2, carbon dioxide laser is adopted to process the luminous thin film, so that a luminous textile fabric is obtained. According to the invention, the method has advantages of energy saving and environmental protection, simple and convenient technology, strong operability and high production efficiency, and the plating range of the luminous thin film is easily controlled for diversification of luminous pattern design.

Description

technical field [0001] The invention relates to the technical field of functional textile fabrics and plating, in particular to a method for preparing luminous textile fabrics based on a laser annealing process. Background technique [0002] As a new type of functional material, luminous textile fabrics have excellent luminous properties, and can emit energy in the form of visible light under the excitation of sunlight, ultraviolet light, artificial light and other light sources to emit light. Luminescent textile fabrics can be used in night operation industry, military industry, and navigation operations, and can also be used in civilian fields to provide security lighting, anti-counterfeiting identification, and decorative functions. [0003] There is an energy level transition between the ground state and the excited state of the trivalent europium ion-doped yttrium oxide red luminescent powder under the irradiation of ultraviolet light 5 D. 0 - 7 f J (J=0, 1, 2, 3, ....

AI Technical Summary

Problems solved by technology

However, these preparation processes are generally in an aqueous environment, and the luminescence performance of the luminescent powder will be affected by water vapor, and its wastewater treatment is still a serious challenge so far.

In addition, the spinning process has a high requirement on the particle size of the luminescent powder. If the particle size is too large, it is easy to block the spinning hole, and the breaking strength of the luminescent fiber obtained by adding the luminescent powder is affected to a certain extent. The fiber breakage often occurs at the place where the particles exist. , and the complicated post-processing process will also affect the luminescent performance of the luminescent fiber

Therefore, the controllability of the above method to produce luminous textile fabrics is low and it is difficult to adapt to the production of personalized products.

[0005] At present, there are few reports about the preparation of luminescent textile fabrics by plating technology

In addition, the luminescent film deposited on the substrate by plating technology has low crystallinity and affects the luminescent performance of the material. In order to improve the luminous intensity of the luminescent film, it is often necessary to perform a traditional post-treatment annealing process on the deposited film. At present, muffle furnace annealing is mostly used. However, this traditional annealing method is generally annealing the sample as a whole, and the processing time is long (1-5 hours) and the processing temperature is high (800-1200 ° C). The material has good heat resistance

For example, in the prior art, such as Chinese patent application, CN104674539A discloses a method for preparing luminescent fibers and fabrics. The method uses fibers and fabrics as the base, luminescent materials as sputtering targets, and uses radio frequency magnetron sputtering technology. A method of sputtering and depositing luminescent materials onto the surface of fibers and fabrics. In this preparation method, the fabric patterns produced are not easy to control, and the processing efficiency is low, and the selectivity range for fabric substrates is narrow.

The laser treatment process has the advantages of convenient use, high processing efficiency, and simple and quick operation. However, the research of laser treatment process in the field of textile and clothing mainly focuses on engraving and fabric cutting of jeans, and it has not been applied to plating. There are no reports on the application of laser annealing process to treat luminescent textile fabrics to make them present a new design appearance.

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