CN103757894A - Method for preparing natural antibacterial and anti-ultraviolet functional finishing agent with Tieguanyin tea stalks - Google Patents

Abstract

The invention discloses a processing method for preparing a textile finishing agent by using a natural functional compound. The processing method comprises the following steps: 1. drying, crushing and compounding enzyme liquid treatment for Tieguanyin tea stems; 2. treating the pretreated The material is placed in the extraction solution, after ultrasonic crushing treatment, heated and refluxed for extraction, cooled and filtered to obtain the natural functional compound extract of Tieguanyin tea stalk; 3. Add antioxidants, stabilizers, penetrants, etc. to the extract, Perform homogenization and degassing. Aiming at the raw material characteristics of Tieguanyin tea stems and the application characteristics of products, the invention designs an enzyme treatment process of ultrafine powder, a protective combination extraction process of natural functional substances and a compound synergistic treatment process of natural product solutions. The invention uses Tieguanyin tea stalks to prepare a natural functional finishing agent, which has rich raw materials and low cost, expands the source of textile reagent raw materials, solves the problem of tea processing waste disposal, and provides a new idea for comprehensive utilization and deep processing of tea resources.

Description

Preparation of natural antibacterial and anti-ultraviolet functional finishing agent for Tieguanyin tea stems

technical field

The invention relates to a preparation method of using natural functional compounds as textile finishing agents, in particular to a preparation method of using Tieguanyin tea stems as raw materials to obtain natural functional substances to prepare antibacterial and anti-ultraviolet functional finishing agents for textiles.

Background technique

Functional textiles are a class of products with great development potential in clothing textiles. Today in the 21st century, people's requirements for clothing are not only aesthetic needs, but also higher and higher requirements for comfort and functionality. Taking summer clothing as an example, because of its good moisture absorption properties, pure cotton knitted fabrics are commonly used fabrics for summer casual clothing. But in addition to hygroscopicity, people also hope that the clothes used as summer clothes can also have UV protection and antibacterial functions. This requirement is especially strong for areas with long direct sunlight at low latitudes and hot and humid weather in summer. But its cotton fiber has almost no anti-ultraviolet and antibacterial functions, so ordinary cotton fabric is not the most ideal material for summer clothes. For this reason, people generally carry out anti-ultraviolet and antibacterial function finishing to cotton fabric by the method for fabric finishing. However, these finishes generally achieve their functions by processing chemical auxiliaries onto textiles. These chemical additives may bring potential toxic side effects in the process of contact with the human body, and many functional finishing agents are fixed on the fabric through adhesives, which not only does not have a long-lasting effect, but also causes discomfort when wearing. Comfortable. In addition, the preparation and finishing process of many finishing agents will also bring pollution.

In recent years, the application of natural products has attracted great attention. Because natural products come from biomass resources such as plants, animals and microorganisms, this not only helps to alleviate the energy and resource crisis caused by the excessive dependence on petroleum-based chemical products, but also reduces the production and use of chemical reagents pollution in the process. At present, the most research and application of natural products in the field of textiles is the dyeing of natural dyes. Many natural products, especially natural compounds in plants, have medicinal ingredients and are natural antibacterial agents. Many natural compounds as secondary metabolites are macromolecular substances with complex structures, and some compounds containing conjugated systems have ultraviolet absorption and can be used as ultraviolet absorbers.

Quanzhou has a subtropical marine monsoon climate, warm and humid all year round, and rich in plant resources. Tea is a characteristic and advantageous resource in Quanzhou, and oolong tea represented by Anxi Tieguanyin is famous both at home and abroad. There will be a lot of leftovers in the process of tea processing, which provides a good source of raw materials for the extraction of natural functional substances. Tea is rich in natural functional substances, and studies have shown that polyphenols in tea have a good antibacterial effect. The triterpenes and tannins contained in tea have strong characteristic absorption of ultraviolet rays. To develop the leftovers of tea stalks formed in tea processing, extract natural functional components from them, and prepare natural finishing agents for textile processing, which provides a new method for the preparation of high-grade functional textiles, and also provides a new method for the comprehensive utilization of tea resources. way.

The invention uses Tieguanyin tea stalks as raw materials to provide a preparation method for a natural antibacterial and anti-ultraviolet functional finishing agent for textile processing.

Contents of the invention

The object of the present invention is to provide a method for preparing a finishing agent for textile processing with natural antibacterial and anti-ultraviolet functions using Tieguanyin tea stems as raw materials. The method is to pretreat the Tieguanyin tea stalks, then extract the functional components with natural protective effect, and finally compound by adding auxiliary agents to obtain a natural functional finishing agent for textile processing with stable performance and good processing performance. The method uses the leftover tea stalks of Tieguanyin tea as raw materials, realizes the comprehensive utilization and deep processing of tea resources, and the natural functional finishing agent prepared by this method contains natural antibacterial and anti-ultraviolet functional substances, compared with chemically synthesized Reagent, used in textiles to reduce the irritation to the human body.

The preparation method of the natural functional finishing agent for textile processing with Tieguanyin tea stalk as raw material of the present invention is carried out according to the following steps:

(1) Dry the Tieguanyin tea stalks at a temperature of 70-100°C for 15-90 minutes, then perform rotary cutting and pulverization for 10-40 minutes, and put the ultrafine powder thus obtained into the compound enzyme treatment liquid, the compound enzyme The content of cellulase in the treatment solution is 0-1000U/mL, the content of laccase is 0-200U/mL, and the treatment is carried out at pH=5.0-8.0 and temperature 20-40°C for 60-240min;

(2), place the material processed in step (1) containing 0-90% water, 0-2g/L vitamin C, 0-5g/L Tween 100, 20-90% ethanol, 0-50% acetone, In the extract of 0-500g/L sodium dihydrogen phosphate and 0-500g/L ammonium chloride, the ratio of solid to liquid is 1:5-30, ultrasonic treatment for 5-90min, and then heated to reflux at a temperature of 75-100°C Extract for 0.5-5h, cool, and suction filter to obtain the antibacterial and anti-ultraviolet functional substance extract of Tieguanyin tea stalk;

(3), in the Tieguanyin tea stalk functional substance extract prepared in step (2), add tartaric acid, 0-2g/L citric acid, 0-2g/L EDTA (ethylenediaminetetraacetic acid) of 0-2g/L ), 0-2g/L vitamin C, 0-2g/L sodium sulfite, 0-2g/L sodium hexametaphosphate and 0-5g/L penetrant JFC, stirred at high speed for 5-30min for homogenization, and then ultrasonic degassed 5-30min, then stir at high speed for 5-30min.

The preparation method of the natural functional finishing agent for textile processing derived from Tieguanyin tea stalks described in the present invention is aimed at the raw material characteristics of Tieguanyin tea stalks, and a pretreatment process of ultrafine powder enzyme treatment is designed; for obtaining natural functional finishing agents for textile processing The purpose of the product is to design a protective combination extraction process of natural functional compounds, and compound and process through the addition of corresponding additives to form a working solution for fabric finishing.

The present invention uses Tieguanyin tea stalks as raw materials to prepare natural functional finishing agents, which are rich in raw materials and low in cost, and open up a new source of raw materials for textile reagents; the antibacterial and anti-ultraviolet functional substances in the natural functional finishing agents prepared by the present invention are made of iron The natural product separated from Guanyin tea stalks does not require chemical synthesis, and the preparation process of this finishing agent minimizes the pollution of chemicals; the present invention uses Tieguanyin tea stalks as raw materials to prepare natural functional finishing agents, which solves the problem of tea The disposal of wastes in the processing process has realized the comprehensive utilization and intensive processing of tea resources, which provides a new way for the rational development of plant resources.

Detailed ways

Example 1

Tieguanyin tea stems were dried at 80°C for 50 minutes, then rotated, cut and pulverized for 30 minutes, and the ultrafine powder thus obtained was placed in a compound enzyme treatment solution, the cellulase content in the compound enzyme treatment solution was 800 U/ mL, the content of laccase was 100U/mL, treated at pH=8, temperature 30°C for 80min; the material after enzyme treatment was placed in 90% water, 1g/L vitamin C, 2g/L Tween 100, 15 % ethanol, 5% acetone, 50g/L sodium dihydrogen phosphate, 40g/L ammonium chloride in the extract solution, the ratio of solid to liquid is 1:10, ultrasonic treatment for 20min, and then heated under reflux for 3h at a temperature of 90°C, Cooling, suction filtration, obtains Tieguanyin tea stalk antibacterial and anti-ultraviolet functional substance extract; in Tieguanyin tea stalk functional substance extract, add 1g/L tartaric acid, 1g/L citric acid, 1g/L EDTA ( Amine tetraacetic acid), 1g/L vitamin C, 1g/L sodium sulfite, 1g/L sodium hexametaphosphate and 2g/L osmotic agent JFC, stirred at high speed for 20min, then ultrasonic degassed for 20min, and then stirred at high speed for 20min.

Example 2

Tieguanyin tea stems were dried at 70°C for 60 minutes, then rotated, cut and pulverized for 40 minutes, and the ultrafine powder thus obtained was placed in a compound enzyme treatment solution with a cellulase content of 800 U/ mL, the content of laccase is 100U/mL, and it is treated at pH=8, temperature 30°C for 80min; the material after enzyme treatment is placed in 80% water, 1.5g/L vitamin C, 1.5g/L Tween 100 , 10% ethanol, 10% acetone, 60g/L sodium dihydrogen phosphate, 80g/L ammonium chloride extract, the ratio of solid to liquid is 1:15, sonicated for 17min, and then extracted under reflux at a temperature of 85°C 4h, cooling, suction filtration, obtains Tieguanyin tea stalk antibacterial and anti-ultraviolet functional substance extract; in Tieguanyin tea stalk functional substance extract, add 1.2g/L tartaric acid, 1.2g/L citric acid, 1.2g/L L EDTA (ethylenediaminetetraacetic acid), 0.5g/L vitamin C, 0.8g/L sodium sulfite, 1.5g/L sodium hexametaphosphate and 1.5g/L penetrant JFC, stirred at high speed for 15min, and then ultrasonically degassed for 20min , and then stirred at high speed for 10 minutes.

Example 3

Tieguanyin tea stems were dried at 80°C for 50 minutes, then rotated, cut and pulverized for 30 minutes, and the ultrafine powder thus obtained was placed in a compound enzyme treatment solution with a cellulase content of 800 U/ mL, the content of laccase is 100U/mL, and it is treated at pH=8, temperature 30°C for 80min; the material after enzyme treatment is placed in 80% water, 1.5g/L vitamin C, 1.5g/L Tween 100 , 10% ethanol, 10% acetone, 60g/L sodium dihydrogen phosphate, 80g/L ammonium chloride extract, the ratio of solid to liquid is 1:15, sonicated for 20min, and then extracted under reflux at a temperature of 90°C 3h, cooling, suction filtration, obtains Tieguanyin tea stalk antibacterial and anti-ultraviolet functional substance extract; in Tieguanyin tea stalk functional substance extract, add 1g/L tartaric acid, 1g/L citric acid, 1g/L EDTA ( ethylenediaminetetraacetic acid), 1g/L vitamin C, 1g/L sodium sulfite, 1g/L sodium hexametaphosphate and 2g/L penetrant JFC, stirred at high speed for 20min, then ultrasonically degassed for 20min, and then stirred at high speed for 20min.

Example 4

Tieguanyin tea stems were dried at 70°C for 60 minutes, then rotated, cut and pulverized for 40 minutes, and the ultrafine powder thus obtained was placed in a compound enzyme treatment liquid, the content of cellulase in the compound enzyme treatment liquid was 500 U/ mL, the content of laccase is 100U/mL, and it is treated at pH=7.5, temperature 40℃ for 60min; the material after enzyme treatment is placed in 80% water, 1.5g/L vitamin C, 1.5g/L Tween 100 , 10% ethanol, 10% acetone, 60g/L sodium dihydrogen phosphate, 80g/L ammonium chloride extract, the ratio of solid to liquid is 1:15, sonicated for 17min, and then extracted under reflux at a temperature of 85°C 4h, cooling, suction filtration, obtains Tieguanyin tea stalk antibacterial and anti-ultraviolet functional substance extract; in Tieguanyin tea stalk functional substance extract, add 1g/L tartaric acid, 1g/L citric acid, 1g/L EDTA ( ethylenediaminetetraacetic acid), 1g/L vitamin C, 1g/L sodium sulfite, 1g/L sodium hexametaphosphate and 2g/L penetrant JFC, stirred at high speed for 15min, then ultrasonically degassed for 20min, and then stirred at high speed for 10min.

Example 5

Tieguanyin tea stems were dried at 80°C for 50 minutes, then rotated, cut and pulverized for 30 minutes, and the ultrafine powder thus obtained was placed in a compound enzyme treatment solution, the cellulase content in the compound enzyme treatment solution was 800 U/ mL, the content of laccase was 100U/mL, treated at pH=8, temperature 30°C for 80min; the material after enzyme treatment was placed in 90% water, 1g/L vitamin C, 2g/L Tween 100, 15 % ethanol, 5% acetone, 50g/L sodium dihydrogen phosphate, 40g/L ammonium chloride in the extract solution, the ratio of solid to liquid is 1:10, ultrasonic treatment for 20min, and then heating and reflux extraction at a temperature of 90°C for 3h, Cooling, suction filtration, obtains Tieguanyin tea stalk antibacterial and anti-ultraviolet functional substance extract; in Tieguanyin tea stalk functional substance extract, add 1.2g/L tartaric acid, 1.2g/L citric acid, 1.2g/L EDTA (ethylenediaminetetraacetic acid), 0.5g/L vitamin C, 0.8g/L sodium sulfite, 1.5g/L sodium hexametaphosphate and 1.5g/L penetrant JFC, stirred at high speed for 15min, then ultrasonic degassed for 20min, and then Stir at high speed for 10 minutes.

Example 6

Tieguanyin tea stems were dried at 70°C for 60 minutes, then rotated, cut and pulverized for 40 minutes, and the ultrafine powder thus obtained was placed in a compound enzyme treatment liquid, the content of cellulase in the compound enzyme treatment liquid was 500 U/ mL, the content of laccase is 100U/mL, and it is treated at pH=7.5, temperature 40℃ for 60min; the material after enzyme treatment is placed in 80% water, 1.5g/L vitamin C, 1.5g/L Tween 100 , 10% ethanol, 10% acetone, 60g/L sodium dihydrogen phosphate, 80g/L ammonium chloride extract, the ratio of solid to liquid is 1:15, sonicated for 17min, and then extracted under reflux at a temperature of 85°C 4h, cooled, and suction filtered to obtain the extract of Tieguanyin tea stalk antibacterial and anti-ultraviolet functional substances; in the Tieguanyin tea stalk functional substance extract, add 1.2g/L tartaric acid, 1.2g/L citric acid, 1.2g/L L EDTA (ethylenediaminetetraacetic acid), 0.5g/L vitamin C, 0.8g/L sodium sulfite, 1.5g/L sodium hexametaphosphate and 1.5g/L penetrant JFC, stirred at high speed for 15min, then ultrasonically degassed for 20min , and then stirred at high speed for 10 minutes.

Claims (1)

1. a preparation method for natural function finishing agent for the textile process that the Iron Guanyin tea stalk of take is raw material, is characterized in that comprising following process:

(1) by Iron Guanyin tea stalk, in temperature, be, to dry 15-90min under 70-100 ℃ of condition, then be rotated cutting and grinding 10-40min, thus obtained superfines is put in complex enzyme treatment fluid, this complex enzyme treatment fluid cellulase content is 0-1000U/mL, laccase content is 0-200U/mL, at pH=5.0-8.0, under temperature 20-40 ℃ of condition, process 60-240min;

(2) material of, step (1) being processed is placed in the water containing 0-90%, 0-2g/L vitamin C, 0-5g/L tween 100,20-90% ethanol, 0-50% acetone, 0-500g/L sodium dihydrogen phosphate, in the extract of 0-500g/L ammonium chloride, solid-liquid ratio is 1: 5-30, and ultrasonic processing 5-90min, then at temperature 75-100 ℃, heating and refluxing extraction 0.5-5h, cooling, suction filtration, obtains the antibacterial and anti-ultraviolet function material extract of Iron Guanyin tea stalk;

(3) in the Iron Guanyin tea stalk functional mass extract of, preparing in step (2), the tartaric acid, 0-2g/L citric acid, 0-2g/L EDTA (ethylenediamine tetra-acetic acid), 0-2g/L vitamin C, 0-2g/L sodium sulfite, 0-2g/L calgon and the 0-5g/L penetrating agent JFC that add 0-2g/L, high-speed stirred 5-30min carries out homogenate, then ultrasonic degas is processed 5-30min, then high-speed stirred 5-30min.