阅读说明：本技术 一种阻燃性好的抗菌性布料的制备工艺 (Preparation process of antibacterial fabric with good flame retardance ) 是由 陈晓彤 于 2019-08-09 设计创作，主要内容包括：本发明涉及布料制备技术领域,具体涉及一种阻燃性好的抗菌性布料的制备工艺；改性过程中3-乙氧基-4-羟基苯甲醛在硫酸铈铵溶液的作用下,与苎麻纤维中的羟基等基团发生反应,生成比较牢固的化学键,且3-乙氧基-4-羟基苯甲醛和苎麻纤维表面的相关基团发生反应后形成的化学键与苯环之间形成共轭体系,从而能将3-乙氧基-4-羟基苯甲醛与苎麻纤维之间牢固连接,显著改善了苎麻纤维的抗菌性；纳米氢氧化铝在混合液中的脂肪醇聚氧乙烯醚硫酸钠与超声分散的配合作用下被均匀填充到汉麻纤维的毛细管道中,由于纳米氢氧化铝能起到很好的阻燃效果；最终通过纺丝制得改性汉麻纤维的阻燃性能更好,阻燃性能更加持久。(the invention relates to the technical field of cloth preparation, in particular to a preparation process of antibacterial cloth with good flame retardance; in the modification process, 3-ethoxy-4-hydroxybenzaldehyde reacts with hydroxyl and other groups in the ramie fibers under the action of a cerium ammonium sulfate solution to generate firmer chemical bonds, and a conjugated system is formed between the chemical bonds formed after the 3-ethoxy-4-hydroxybenzaldehyde reacts with related groups on the surfaces of the ramie fibers and a benzene ring, so that the 3-ethoxy-4-hydroxybenzaldehyde and the ramie fibers can be firmly connected, and the antibacterial property of the ramie fibers is obviously improved; the nano aluminum hydroxide is uniformly filled into the capillary pipeline of the hemp fiber under the matching action of the fatty alcohol-polyoxyethylene ether sodium sulfate in the mixed solution and the ultrasonic dispersion, and the nano aluminum hydroxide can play a good flame retardant role; finally, the modified hemp fiber prepared by spinning has better flame retardant property and more lasting flame retardant property.)

1. A preparation process of antibacterial cloth with good flame retardance is characterized by comprising the following steps:

S1, respectively soaking the ramie fibers and the hemp fibers in ethyl acetate for extraction, and then placing the ramie fibers and the hemp fibers in a constant-temperature drying oven to be dried for later use at 70-80 ℃;

s2, respectively soaking the ramie fibers and the China hemp fibers in a sodium hydroxide solution at the temperature of 50-60 ℃, simultaneously performing ultrasonic dispersion for 40-55min, washing with deionized water until the pH value is 6-8, and drying for later use;

S3, soaking the treated ramie fibers in an ethanol solution, adding a cerium ammonium sulfate solution accounting for 4-7% of the ethanol solution and 3-ethoxy-4-hydroxybenzaldehyde accounting for 4-6% of the ramie fibers into the ethanol solution, ultrasonically dispersing for 3-6min, keeping the temperature and standing for 3-6h at the temperature of 65-80 ℃, cleaning the ramie fibers with deionized water, and drying the ramie fibers in a thermostat to obtain the treated ramie fibers;

S4, adding the hemp fibers into the mixed solution, heating to 40-55 ℃, simultaneously performing ultrasonic dispersion for 40-55min, and spinning and drying the obtained spinning solution to obtain modified hemp fibers;

s5, measuring the stretchable maximum limit of the ramie fibers and the modified hemp fibers after treatment, namely applying pressure to the rayon, thereby measuring the maximum pressure value which can be borne by the rayon;

s6: then sequentially performing working procedures of spooling, warping, slashing, weaving and the like;

S7: and inspecting the cloth through a cloth inspecting machine, and manually repairing and weaving the defective points to obtain the finished antibacterial cloth product with good flame retardance.

2. The preparation process of the antibacterial cloth with good flame retardance according to claim 1, characterized by comprising the following steps: the concentration of the sodium hydroxide solution in the S2 is 160-180 g/L.

3. The preparation process of the antibacterial cloth with good flame retardance according to claim 1, characterized by comprising the following steps: the power of ultrasonic dispersion in the S2 was 800W.

4. The preparation process of the antibacterial cloth with good flame retardance according to claim 1, characterized by comprising the following steps: the concentration of the ethanol solution in the S3 is 45-60%.

5. the preparation process of the antibacterial cloth with good flame retardance according to claim 1, characterized by comprising the following steps: the concentration of the ammonium cerium sulfate solution in the S3 is 1.5-2.0 mol/L.

6. the preparation process of the antibacterial cloth with good flame retardance according to claim 1, characterized by comprising the following steps: the temperature for constant temperature drying in the S3 is 75-85 ℃.

7. the preparation process of the antibacterial fabric with good flame retardancy according to claim 1, wherein the preparation method of the mixed solution in the S4 comprises the following steps: adding 4.6-5.5% of nano aluminum hydroxide and 2.3-3.6% of sodium fatty alcohol-polyoxyethylene ether sulfate into 40% ethanol solution, heating to 40-55 ℃, and performing ultrasonic dispersion for 40-55min to obtain a mixed solution.

Technical Field

the invention relates to the technical field of cloth preparation, in particular to a preparation process of antibacterial cloth with good flame retardance.

Background

Cloth, which plays a considerable role in decorative displays, is often a major non-negligible effort in the overall sales space. A large amount of cloth is used for wall surface decoration, partition and background treatment, and a good commercial space display style can be formed. The raw materials can be divided into cotton cloth, chemical fiber cloth, linen, wool spinning cloth, silk, blended fabric and the like.

the cloth is a material commonly used in decorative materials. Comprises various fabrics such as chemical fiber carpets, non-woven wallcoverings, linen, canvas, nylon fabrics, colored rubberized fabrics, flannel and the like. Cloth plays a considerable role in the decoration of display, often being a major and not negligible effort in soft decoration throughout the sales space. A large amount of cloth is used for wall surface decoration, partition and background treatment, and a good commercial space display style can be formed. The weaving mode can be divided into: woven fabric and knitted fabric. The processing technology can be divided into: grey cloth, bleached cloth, dyed cloth, printed cloth, colored woven cloth, mixed process cloth (such as printing on the colored woven cloth, composite cloth, flocking cloth, leather-like felt cloth) and the like. It can also be divided into the following raw materials: cotton cloth, chemical fabric, hemp cloth, wool fabric, silk, blended fabric, and the like.

the applicant searches that the prior art 1(CN 106978714) is a mothproof textile fabric and a preparation method thereof, and the mothproof textile fabric comprises tencel, chlorinated polyvinyl chloride fiber, jute fiber, nano copper oxide, spandex fiber, a reinforcing agent and water. The components are mixed and processed, so that the prepared textile fabric has very good mothproof performance, waterproof and oilproof functions, high temperature resistance and wear resistance, does not have the trend of performance reduction after being washed for many times, has good air permeability, excellent strength and toughness and good mothproof effect, and is simple in manufacturing process, low in material cost, pollution-free in manufacturing process, green and environment-friendly, and suitable for industrial large-scale production.

A preparation method of a mothproof textile fabric comprises the following steps:

mixing tencel, chlorinated polyvinyl chloride fiber, jute fiber and spandex fiber, and preparing a novel fiber material by drawing, stirring and weaving;

step two, uniformly mixing the nano copper oxide, the reinforcing agent and water, heating and stirring;

Step three, mixing the products of the step one and the step two, stirring uniformly and then drying;

and step four, weaving the dried novel fibers into cloth to obtain a finished product.

disclosure of Invention

Solves the technical problem

Aiming at the defects of the prior art, the invention provides a preparation process of antibacterial cloth with good flame retardance, which is used for solving the technical problems in the background art.

technical scheme

in order to achieve the purpose, the invention is realized by the following technical scheme:

a preparation process of antibacterial cloth with good flame retardance comprises the following steps:

S1, respectively soaking the ramie fibers and the hemp fibers in ethyl acetate for extraction, and then placing the ramie fibers and the hemp fibers in a constant-temperature drying oven to be dried for later use at 70-80 ℃;

S2, respectively soaking the ramie fibers and the hemp fibers in sodium hydroxide solution at the temperature of 50-60 ℃, simultaneously performing ultrasonic dispersion for 40-55min, then washing with deionized water until the pH value is 6-8, and drying for later use;

S3, soaking the treated ramie fibers in an ethanol solution, adding a cerium ammonium sulfate solution accounting for 4-7% of the ethanol solution and 3-ethoxy-4-hydroxybenzaldehyde accounting for 4-6% of the ramie fibers into the ethanol solution, ultrasonically dispersing for 3-6min, keeping the temperature and standing for 3-6h at the temperature of 65-80 ℃, cleaning the ramie fibers with deionized water, and drying the ramie fibers in a thermostat to obtain the treated ramie fibers;

S4, adding the hemp fibers into the mixed solution, heating to 40-55 ℃, simultaneously performing ultrasonic dispersion for 40-55min, and spinning and drying the obtained spinning solution to obtain modified hemp fibers;

s5, measuring the stretchable maximum limit of the treated ramie fibers and the modified hemp fibers, namely applying pressure to the rayon, thereby measuring the maximum pressure value which can be borne by the rayon;

S6: then sequentially performing working procedures of spooling, warping, slashing, weaving and the like;

s7: and inspecting the cloth through a cloth inspecting machine, and manually repairing and weaving the defective points to obtain the finished antibacterial cloth product with good flame retardance.

further, the concentration of the sodium hydroxide solution in the S2 is 160-180 g/L.

Further, the power of ultrasonic dispersion in S2 was 800W.

Further, the concentration of the ethanol solution in the S3 is 45-60%.

further, the concentration of the cerium ammonium sulfate solution in S3 is 1.5-2.0 mol/L.

further, the temperature of the constant temperature drying in the S3 is 75-85 ℃.

furthermore, the preparation method of the mixed solution in the step S4 comprises the following steps: adding 4.6-5.5% of nano aluminum hydroxide and 2.3-3.6% of fatty alcohol polyoxyethylene ether sodium sulfate into 40% ethanol solution, heating to 40-55 deg.C, and ultrasonic dispersing for 40-55min to obtain mixed solution.

advantageous effects

1. Soaking ramie fibers in an ethanol solution, adding a cerous ammonium sulfate solution and 3-ethoxy-4-hydroxybenzaldehyde into the ethanol solution, then carrying out ultrasonic dispersion treatment to complete the modification of the ramie fibers, wherein the ultrasonic dispersion in the modification process enables the 3-ethoxy-4-hydroxybenzaldehyde to be uniformly dispersed in the whole liquid phase system, and the 3-ethoxy-4-hydroxybenzaldehyde reacts with hydroxyl and other groups in the ramie fibers under the action of the cerous ammonium sulfate solution to generate firmer chemical bonds, and a conjugated system is formed between the chemical bonds formed after the 3-ethoxy-4-hydroxybenzaldehyde and related groups on the surfaces of the ramie fibers react and a benzene ring, so that the internal energy of the whole system is smaller, and the bond length tends to be uniform, thereby the performance of the whole conjugate system is more stable, the 3-ethoxy-4-hydroxybenzaldehyde and the ramie fiber can be firmly connected, and the antibacterial property of the ramie fiber is obviously improved.

2. the modified hemp fiber is prepared by adding hemp fiber into the mixed solution, spinning and drying. The nano aluminum hydroxide is uniformly dispersed into the mixed solution under the matching action of the fatty alcohol polyoxyethylene ether sodium sulfate in the mixed solution and the ultrasonic dispersion, and the hemp fibers have more capillary pipelines, so that the nano aluminum hydroxide particles are uniformly filled into the capillary pipelines of the hemp fibers under the action of the ultrasonic dispersion, and the nano aluminum hydroxide can achieve a good flame-retardant effect. Therefore, the modified hemp fiber finally prepared by spinning has better flame retardant property and more lasting flame retardant property.

Detailed Description

in order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention are clearly and completely described below, and it is obvious that the described embodiments are a part of the embodiments of the present invention, but not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.