CN109853222B - A kind of preparation method of anti-ultraviolet cotton fabric - Google Patents
A kind of preparation method of anti-ultraviolet cotton fabric Download PDFInfo
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- CN109853222B CN109853222B CN201811651049.8A CN201811651049A CN109853222B CN 109853222 B CN109853222 B CN 109853222B CN 201811651049 A CN201811651049 A CN 201811651049A CN 109853222 B CN109853222 B CN 109853222B
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Abstract
The invention discloses a preparation method of an ultraviolet-proof cotton fabric, which comprises the steps of firstly modifying chitosan to prepare a modified chitosan dispersion liquid, then modifying zinc oxide to prepare a modified zinc oxide dispersion liquid, padding the cotton fabric in the modified chitosan dispersion liquid for 30-50 min after pretreatment, adding the modified zinc oxide dispersion liquid for padding for 30-50 min after baking, and carrying out cyclic padding for 1 time or more. The cotton fabric obtained by the invention has the advantages of excellent ultraviolet-proof effect, lasting time, good washing resistance, simple flow, easy realization of industrialization and suitability for popularization and use.
Description
Technical Field
The invention belongs to the technical field of functional fabrics, and particularly relates to a preparation method of an ultraviolet-proof cotton fabric.
Background
Along with the continuous progress and development of society, the cognitive level of people is also continuously improved, and the safety of people is also more and more important. The protective properties of the garment that is the first place in the "clothing row" are also increasingly being looked at. It is known that the intensity of ultraviolet radiation is the strongest throughout the year, particularly in summer. In the hot summer, if the skin is exposed to intense sunlight for a long time, the skin is sunburned by ultraviolet rays. Short irradiation times promote increased melanin synthesis. Can cause pigmentation, such as black spot, freckle, chloasma, etc., and increase, deepen, and affect skin appearance. If irradiated for a long time, the immune function of the skin is reduced, and skin cancer or precancerous lesions, such as light keratosis, squamous cell carcinoma, melanoma, etc., can be formed. Therefore, it is important to wear an ultraviolet-proof sun-blocking garment in general, especially in summer, in order to prevent sunburn of flat skin by ultraviolet rays.
The Chinese patent application with the application number of CN201310468667X discloses a preparation method of modified nano titanium dioxide finishing liquid with double effects of ultraviolet resistance and self-cleaning, which is characterized in that an organic silane coupling agent is utilized to carry out surface modification on rutile nano TiO2, then the modified nano TiO2 is used for finishing polyester-cotton fabrics, and the finished and dyed fabrics are placed in an ultraviolet lamp with specific ultraviolet wavelength to be irradiated for a certain time, thus obtaining the modified nano titanium dioxide finishing liquid. The ultraviolet-proof fabric prepared by the method has poor ultraviolet-proof effect and non-lasting ultraviolet-proof effect, and the fabric does not have the ultraviolet-proof effect after being washed for 2-3 times.
Disclosure of Invention
Aiming at the defects of the existing problems, the invention aims to provide a preparation method of an ultraviolet-proof cotton fabric. The ultraviolet-proof cotton fabric prepared by the invention has the characteristics of good ultraviolet-proof effect, good ultraviolet-proof durability and strong resistance.
The technical scheme adopted by the invention for solving the technical problems is as follows:
the preparation method of the ultraviolet-proof cotton fabric comprises the steps of firstly modifying chitosan to prepare a modified chitosan dispersion solution, then modifying zinc oxide to prepare a modified zinc oxide dispersion solution, pretreating the cotton fabric, padding the cotton fabric in the modified chitosan dispersion solution for 30-50 min, baking, then adding the modified zinc oxide dispersion solution, and padding for 30-50 min, wherein the number of times of cyclic padding is 1 or more.
As a preferred technical scheme of the application, the method comprises the following specific steps:
step 1, preparing a modified chitosan dispersion: weighing chitosan, dissolving in glacial acetic acid, adding deionized water, continuously stirring for 2h, adding magnesium chloride solution, and stirring for 40-80min to obtain modified chitosan dispersion; step 2, preparing modified zinc oxide dispersion liquid: weighing graphene oxide, dissolving the graphene oxide in deionized water, performing ultrasonic dispersion for 30min, adding zinc oxide and cerium nitrate, uniformly stirring, adding a KOH solution, stirring again, transferring into a reaction kettle, and reacting at 250 ℃ for 14-20 h; washing and drying after the reaction is finished; sintering at high temperature under the condition of inert gas; dissolving the high-temperature sintered product in deionized water, and performing ultrasonic dispersion for 60min to obtain a modified zinc oxide dispersion liquid;
step 3, pretreating cotton fabrics: irradiating the cotton fabric for 30-60 min under ultraviolet light;
step 4, finishing cotton fabrics: the cotton fabric is firstly padded in the modified chitosan dispersion liquid for 30-50 min, and is padded for 30-50 min after being baked in the modified zinc oxide dispersion liquid, and the number of times of cyclic padding is 1 or more.
As a preferable technical scheme of the application, in the step 1, the mass concentration of the chitosan is 1-5 g/mL.
In a preferred embodiment of the present invention, in the step 1, the molar concentration of magnesium chloride is 0.1 mol/L.
As a preferred technical solution of the present application, in the step 2, the mass ratio of the graphene oxide, the cerium nitrate and the zinc oxide is 1: 0.01-0.1: 10-20, wherein the molar concentration of the KOH solution is 2-5 mol/L.
As a preferred technical scheme of the application, in the step 2, the inert gas is one of Ar, Ar/H2 mixed gas and He, the sintering temperature is 400-600 ℃, and the sintering time is 4-6H.
As a preferred technical scheme of the application, in the step 4, the padding liquid carrying rate of the cotton fabric is 60-80%.
Advantageous effects
Compared with the prior art, the preparation method of the ultraviolet-proof cotton fabric provided by the invention has the following beneficial effects: the ultraviolet-proof cotton fabric prepared by the invention has the characteristics of good ultraviolet-proof effect, good ultraviolet-proof durability and strong resistance.
Drawings
FIG. 1 is a graph showing UV protection performance of a cotton fabric after washing in example 1 of the present invention.
Detailed Description
The present invention will be described in further detail with reference to examples. The reagents or instruments used are not indicated by manufacturers, and are regarded as conventional products which can be purchased in the market.
Example 1:
a preparation method of an ultraviolet-proof cotton fabric comprises the following specific steps:
step 1, preparing a modified chitosan dispersion: weighing 1g of chitosan, dissolving the chitosan in 5mL of glacial acetic acid, adding 95mL of deionized water, continuously stirring for 2h, adding 5mL of 0.1mol/L magnesium chloride solution, and stirring for 40min to obtain a modified chitosan dispersion solution;
step 2, preparing modified zinc oxide dispersion liquid: weighing 1g of graphene oxide, dissolving the graphene oxide in deionized water, performing ultrasonic dispersion for 30min, then adding 10g of zinc oxide and 0.01g of cerium nitrate, uniformly stirring, adding 50mL of 2mol/LKOH solution, stirring again, transferring into a reaction kettle, and reacting for 20h at 180 ℃; washing and drying after the reaction is finished; sintering at the high temperature of 400 ℃ for 6h under the Ar gas condition; dissolving the high-temperature sintered product in deionized water, and performing ultrasonic dispersion for 60min to obtain a modified zinc oxide dispersion liquid;
step 3, pretreating cotton fabrics: irradiating the cotton fabric for 30min under ultraviolet light;
step 4, finishing cotton fabrics: the cotton fabric is firstly padded in the modified chitosan dispersion liquid for 30min, the modified zinc oxide dispersion liquid is added after the cotton fabric is baked, padding is carried out for 30min, padding is carried out for 3 times in a circulating mode, and the padding liquid carrying rate of the cotton fabric is controlled to be 60%.
Example 2
A preparation method of an ultraviolet-proof cotton fabric comprises the following specific steps:
step 1, preparing a modified chitosan dispersion: weighing 2g of chitosan, dissolving the chitosan in 2mL of glacial acetic acid, adding 98mL of deionized water, continuously stirring for 2h, adding 3mL of 0.1mol/L magnesium chloride solution, and stirring for 50min to obtain a modified chitosan dispersion solution;
step 2, preparing modified zinc oxide dispersion liquid: weighing 1g of graphene oxide, dissolving the graphene oxide in deionized water, performing ultrasonic dispersion for 30min, then adding 20g of zinc oxide and 0.1g of cerium nitrate, uniformly stirring, adding 50mL of 5mol/LKOH solution, stirring again, transferring into a reaction kettle, and reacting for 14h at 250 ℃; washing and drying after the reaction is finished; sintering at 600 ℃ for 4H under the condition of Ar/H2 mixed gas; dissolving the high-temperature sintered product in deionized water, and performing ultrasonic dispersion for 60min to obtain a modified zinc oxide dispersion liquid;
step 3, pretreating cotton fabrics: irradiating the cotton fabric for 60min under ultraviolet light;
step 4, finishing cotton fabrics: the cotton fabric is firstly padded in the modified chitosan dispersion liquid for 50min, the modified zinc oxide dispersion liquid is added after the cotton fabric is baked, the padding time is 5 times, and the padding liquid carrying rate of the cotton fabric is 80%.
Example 3
A preparation method of an ultraviolet-proof cotton fabric comprises the following specific steps:
step 1, preparing a modified chitosan dispersion: weighing 5g of chitosan, dissolving the chitosan in 4mL of glacial acetic acid, adding 96mL of deionized water, continuously stirring for 2h, adding 3mL of 0.1mol/L magnesium chloride solution, and stirring for 40min to obtain a modified chitosan dispersion solution;
step 2, preparing modified zinc oxide dispersion liquid: weighing 1g of graphene oxide, dissolving in deionized water, performing ultrasonic dispersion for 30min, then adding zinc oxide and cerium nitrate, uniformly stirring, adding 50mL of 5mol/L KOH solution, stirring again, transferring into a reaction kettle, and reacting for 16h at 200 ℃; washing and drying after the reaction is finished; sintering at 500 deg.c for 5 hr under He gas condition; dissolving the high-temperature sintered product in deionized water, and performing ultrasonic dispersion for 60min to obtain a modified zinc oxide dispersion liquid;
step 3, pretreating cotton fabrics: irradiating the cotton fabric for 30-60 min under ultraviolet light;
step 4, finishing cotton fabrics: the cotton fabric is firstly padded in the modified chitosan dispersion liquid for 30-50 min, the modified zinc oxide dispersion liquid is added after the cotton fabric is baked, the padding time is 10 times, and the padding liquid carrying rate of the cotton fabric is 70%.
Example 4
A preparation method of an ultraviolet-proof cotton fabric comprises the following specific steps:
step 1, preparing a modified chitosan dispersion: weighing 4g of chitosan, dissolving the chitosan in 3g of glacial acetic acid, adding 97g of deionized water, continuously stirring for 2h, adding 4mL of 0.1mol/L magnesium chloride solution, and stirring for 60min to obtain a modified chitosan dispersion solution;
step 2, preparing modified zinc oxide dispersion liquid: weighing 1g of graphene oxide, dissolving in deionized water, performing ultrasonic dispersion for 30min, then adding 18g of zinc oxide and 0.05g of cerium nitrate, uniformly stirring, adding 50mL of 3mol/LKOH solution, stirring again, transferring into a reaction kettle, and reacting for 17h at 220 ℃; washing and drying after the reaction is finished; sintering at 600 ℃ for 4h under Ar gas condition; dissolving the high-temperature sintered product in deionized water, and performing ultrasonic dispersion for 60min to obtain a modified zinc oxide dispersion liquid;
step 3, pretreating cotton fabrics: irradiating the cotton fabric for 60min under ultraviolet light;
step 4, finishing cotton fabrics: the cotton fabric is firstly padded in the modified chitosan dispersion liquid for 30min, the modified zinc oxide dispersion liquid is added after the cotton fabric is baked, the padding time is 8 times, and the padding liquid carrying rate of the cotton fabric is 60-80%.
And (3) performance testing:
according to the evaluation of ultraviolet resistance of textiles of national standard GB/T18830-2002, ultraviolet transmittance of UVA and UVB wave bands of the textiles is measured on a tester for ultraviolet resistance of the textiles, and the ultraviolet resistance effect of the cotton fabrics is evaluated by UPF. And the ultraviolet resistance of the cotton fabric after 50 times of washing is measured.
The results are as follows:
as can be seen from the above table, the ultraviolet protection performance of the invention is excellent, and the UPF value reaches 50 +. After 50 times of washing, the ultraviolet resistance of the fabric is shown in figure 1, the UPF value of the cotton fabric is rapidly reduced in the first 5 times of washing, and the UPF value is basically unchanged along with the continuous increase of the washing times, which shows that the ultraviolet resistance of the finished cotton fabric is better in washing resistance.
The protection of the present invention is not limited to the above embodiments. Variations and advantages that may occur to those skilled in the art may be incorporated into the invention without departing from the spirit and scope of the inventive concept and the scope of the appended claims is intended to be protected.
Claims (6)
1. The preparation method of the ultraviolet-proof cotton fabric is characterized by comprising the following specific steps of firstly modifying chitosan to prepare a modified chitosan dispersion liquid, then modifying zinc oxide to prepare a modified zinc oxide dispersion liquid, padding the cotton fabric with the modified chitosan dispersion liquid after pretreatment, baking and then adding the modified zinc oxide dispersion liquid for padding:
step 1, preparing a modified chitosan dispersion: weighing chitosan, dissolving in glacial acetic acid, adding deionized water, continuously stirring for 2h, adding magnesium chloride solution, and stirring for 40-80min to obtain modified chitosan dispersion;
step 2, preparing modified zinc oxide dispersion liquid: weighing graphene oxide, dissolving the graphene oxide in deionized water, performing ultrasonic dispersion for 30min, adding zinc oxide and cerium nitrate, uniformly stirring, adding a KOH solution, stirring again, transferring into a reaction kettle, and reacting at 250 ℃ for 14-20 h; washing and drying after the reaction is finished; sintering at high temperature under the condition of inert gas; dissolving the high-temperature sintered product in deionized water, and performing ultrasonic dispersion for 60min to obtain a modified zinc oxide dispersion liquid;
step 3, pretreating cotton fabrics: irradiating the cotton fabric for 30-60 min under ultraviolet light;
step 4, finishing cotton fabrics: the cotton fabric is firstly padded in the modified chitosan dispersion liquid for 30-50 min, and is padded for 30-50 min after being baked in the modified zinc oxide dispersion liquid, and the number of times of cyclic padding is 1 or more.
2. The preparation method of the ultraviolet-proof cotton fabric according to claim 1, wherein in the step 1, the mass concentration of chitosan is 1-5 g/mL.
3. The method for preparing ultraviolet resistant cotton fabric according to claim 1, wherein in the step 1, the molar concentration of magnesium chloride is 0.1 mol/L.
4. The preparation method of the ultraviolet-proof cotton fabric according to claim 1, wherein in the step 2, the mass ratio of the graphene oxide to the cerium nitrate to the zinc oxide is 1: 0.01-0.1: 10-20, wherein the molar concentration of the KOH solution is 2-5 mol/L.
5. The method for preparing ultraviolet resistant cotton fabric according to claim 1, wherein the method comprises the following stepsIn the step 2, the inert gas is Ar or Ar/H2One of the mixed gas and He, the sintering temperature is 400-600 ℃, and the sintering time is 4-6 h.
6. The preparation method of the ultraviolet-proof cotton fabric according to claim 1, wherein in the step 4, the padding liquor ratio of the cotton fabric is 60-80%.
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| CN112981941B (en) * | 2021-02-24 | 2022-04-19 | 杭州柯力达家纺有限公司 | Graphene-based ultraviolet-resistant fabric and preparation method thereof |
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| CN108560259A (en) * | 2018-04-18 | 2018-09-21 | 上海工程技术大学 | A method of improving nano-ZnO binding strength on modified dacron fabric |
| CN109023917A (en) * | 2018-06-26 | 2018-12-18 | 澳洋集团有限公司 | A kind of preparation method of modified cotton fiber material |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108560259A (en) * | 2018-04-18 | 2018-09-21 | 上海工程技术大学 | A method of improving nano-ZnO binding strength on modified dacron fabric |
| CN109023917A (en) * | 2018-06-26 | 2018-12-18 | 澳洋集团有限公司 | A kind of preparation method of modified cotton fiber material |
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| 《壳聚糖杂化膜改性对棉织物性能的影响》;高大伟等;《上海纺织科技》;20151031;第43卷(第10期);94-96 * |
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Effective date of registration: 20240721 Address after: No. 1 Jinshan Road, Chucun Town, Torch High tech Industrial Development Zone, Weihai City, Shandong Province, 264200 Patentee after: Shandong Hengyuan New Materials Co.,Ltd. Country or region after: China Address before: 224051 middle road of hope Avenue, Yancheng City, Jiangsu Province, No. 1 Patentee before: YANCHENG INSTITUTE OF TECHNOLOGY Country or region before: China |