Natural real silk Lyocell interwoven fabric with antibacterial, antiviral and uvioresistant functions and preparation method

Abstract

The invention relates to the technical field of functional fabrics, and particularly discloses a natural antibacterial, antiviral and uvioresistant real silk Lyocell interwoven fabric and a preparation method thereof, and the method specifically comprises the following steps: 1) modification treatment: placing the fabric in a 2-5g / L modifier solution for pretreatment for 30-45min; 2) functional treatment: in a solution containing 6-8% (o.w.f) of a honeysuckle extract, 5-8% (o.w.f) of a scutellaria baicalensis extract and 1g / L of citric acid, heating to 90-92 DEG C at a speed of 1 DEG C / min, and treating for 60-80 minutes; and 3) synergistic treatment: treating in a solution containing 3-5% (o.w.f) of silver nitrate and 1-3% (o.w.f) of citric acid for 30-45 minutes at 40-80 DEG C. After the interwoven fabric is subjected to modification treatment, antibacterial, antiviral and anti-ultraviolet treatment and synergistic treatment, the real silk / Lyocell interwoven fabric has certain antibacterial, antiviral and anti-ultraviolet functions, and the technical problem that the multifunctionality and durability of a natural fabric are difficult to consider at the same time is solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of functional fabric, in particular to a natural antibacterial, antiviral and ultraviolet-resistant functional pure silk / Lyocell interwoven fabric and a preparation method thereof. BACKGROUND

[0002] In the human living environment, the widespread existence of pathogenic microorganisms such as bacteria and viruses continues to threaten public health and safety. Viral diseases are particularly destructive, and epidemics such as hepatitis B and influenza have posed a global health crisis. Traditional Chinese medicine, with its safety and multi-target treatment advantages of natural sources, has shown unique value in fighting major epidemics such as SARS and avian influenza. Classic preparations such as honeysuckle and scutellaria baicalensis Georgi, such as yinqiao powder and shuanghuanglian oral liquid, have shown significant antiviral effects in the prevention and control of H1N1 influenza A.

[0003] Lonicera japonica Thunb. is a dry flower bud of Caprifoliaceae, and its name comes from the unique phenomenon that the flower color changes from white to yellow. The medicinal history can be traced back to the Han Dynasty "Shennong Bencao Jing", and the first edition of "Zhoubieiyaji Fang" of the Eastern Jin Dynasty recorded its effects of clearing heat and resolving toxins and dispersing wind-heat, and treating toxic dysentery and exogenous febrile disease. Modern research reveals that its core active ingredient chlorogenic acid cooperates with flavonoids, iridoid glycosides and other substances to form a broad-spectrum antiviral mechanism, showing inhibitory effect on 17 viral strains such as H1N1 influenza virus, HIV and HBV, and also has multiple effects such as antibacterial and immune regulation.

[0004] Scutellaria baicalensis Georgi is the dried root of Scutellaria baicalensis Georgi of Labiatae, and the main active ingredients are flavonoids, including baicalin, baicalein, wogonoside, wogonin, etc. Among them, baicalin has the highest content. This component has multiple effects such as antibacterial, antiviral and anti-inflammatory, and its decoction shows significant inhibitory effect on gram-positive bacteria, gram-negative bacteria and common pathogenic fungi. Research has confirmed that baicalin, by blocking viral replication and regulating immune response, has become a key component of antiviral Chinese patent medicines such as Shuanghuanglian Oral Liquid and Lannq Oral Liquid, and is widely used in the treatment of respiratory tract infections such as influenza.

[0005] Silk is a natural protein fiber containing 18 kinds of α-amino acids, known as the "second skin" of the human body, and has soft texture, comfortable wearing and benefits to human health. Lyocell fiber is a green and environmentally friendly regenerated cellulose fiber, which has the comfort of cotton fiber, the strength and modulus of polyester fiber, the drape of viscose fiber, bright color, easy biodegradation, soft hand feeling and elegant luster.

[0006] The current silk fabric generally lacks antibacterial and antiviral performance, and the silk fabric prepared by using silk cannot meet the requirement of people on antibacterial and antiviral performance. Moreover, the traditional process cannot realize high load due to the fact that silk is not resistant to high temperature (> 95 DEG C denaturation) and Lyocell is swelling, and there is no report on the synergistic effect of plant extract compounding. Therefore, it is necessary to modify the current silk fabric to meet the demand of antibacterial and antiviral performance of the fabric. SUMMARY

[0007] The purpose of the present application is to solve the problem that the current silk fabric cannot simultaneously have antibacterial, antiviral and anti-ultraviolet performances, and a honeysuckle and radix scutellariae extract is used as an antibacterial, antiviral and anti-ultraviolet finishing agent, and the finishing agent is used to make the silk / Lyocell interwoven fabric have excellent antibacterial, antiviral and anti-ultraviolet functions.

[0008] The silk / Lyocell interwoven fabric with natural honeysuckle and radix scutellariae extract for developing antibacterial, antiviral and anti-ultraviolet functions has not been reported.

[0009] Specifically, the following technical scheme is used in the present application. A natural antibacterial, antiviral and anti-ultraviolet silk / Lyocell interwoven fabric is prepared according to the following steps: Step 1, modification treatment, the silk / Lyocell interwoven fabric is placed in a 2-5 g / L modified agent solution, the bath ratio is 1:15, the temperature is 60-65 DEG C, and the time is 30-45 min, and then the fabric is washed and dried; Step 2, antibacterial, antiviral and anti-ultraviolet treatment, the silk / Lyocell interwoven fabric after the modification treatment in step 1 is placed in a functional modification solution, the bath ratio is first adjusted to 1:15, then the temperature is increased to 90-92 DEG C at a speed of 1 DEG C per minute, and the treatment is carried out for 60-80 min, then the fabric is washed and dried; the ratio of each component in the functional modification solution is: honeysuckle extract 6-8% (o.w.f), radix scutellariae extract 5-8% (o.w.f), and citric acid 1 g / L; Step 3, synergistic treatment, the silk / Lyocell interwoven fabric after the modification treatment in step 2 is placed in a synergistic treatment solution for synergistic treatment, the treatment temperature is 40-80 DEG C, the treatment time is 30-45 min, the synergistic agent in the synergistic treatment solution is 3-5% (o.w.f), and the citric acid is 1-3% (o.w.f); and the functional modified silk / Lyocell interwoven fabric is obtained after the treatment.

[0010] Further, the modified agent used in the modified agent solution in step 1 is modified agent FE-DS.

[0011] Further, the preparation process of the honeysuckle extract and the radix scrophulariae extract in the functional modification solution in step 2 is specifically as follows: the honeysuckle and the radix scrophulariae are respectively put into an 80% ethanol solution, and according to the solid-liquid ratio of 1:20, the treatment is carried out at the temperature of 98 DEG C for 120 min, and after the treatment is completed, filtration, rotary evaporation and freeze-drying are carried out to form a powder.

[0012] Further, the synergist in step 3 is ferrous sulfate, silver nitrate or potassium aluminum sulfate.

[0013] Further, the yield of chlorogenic acid in the honeysuckle extract and the radix scrophulariae extract in step 1 is greater than 6.98%, and the total flavonoid content is greater than 12.4%.

[0014] Further, in step 4, the soaping treatment, the fabric obtained in step 3 is put into 1g / L neutral detergent and treated at 50 DEG C for 15 min.

[0015] The application constructs a suitable treatment liquid by precise temperature control and combination of specific proportion, so that the silk fabric is treated without damaging the silk, especially when the temperature is not more than 92 DEG C, the silk denaturation is prevented, which is obviously different from the conventional textile treatment and has considerable non-obviousness.

[0016] The application realizes the trinity function of natural components of antiviral, anti-ultraviolet and high durability, and solves the environmental protection problem and avoids the biological toxicity risk of synthetic materials such as nano-silver / quaternary ammonium salt.

[0017] Compared with the prior art, the application has the beneficial effects that: The application adopts the natural honeysuckle extract and the radix scrophulariae extract to perform the functional modification treatment on the silk / Lyocell interwoven fabric, so that the functional fabric with the functions of antibacterial, antiviral and anti-ultraviolet is obtained. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 The figure is the ultraviolet-visible light absorption spectrum of the extraction solution of the radix scrophulariae extract of the application.

[0019] Figure 2 The figure is the ultraviolet-visible light absorption spectrum of the extraction solution of the honeysuckle extract of the application DETAILED DESCRIPTION

[0020] Representative embodiments illustrated in the accompanying drawings will now be further specified. It should be understood that the following description is not intended to limit the embodiments to one preferred embodiment. On the contrary, it is intended to cover alternatives, modifications and equivalents that can be included within the spirit and scope of the described embodiments defined by the appended claims.

[0021] The company develops a natural antibacterial, antiviral and ultraviolet-resistant functional silk / Lyocell interwoven fabric, which is prepared in the following manner: Step 1, modification treatment, the silk / Lyocell interwoven fabric is placed in a 2-5 g / L modification agent solution, the modification agent is modification agent FE-DS, the bath ratio is 1:15, the temperature is 60-65 DEG C, and the time is 30-45 min, and then it is washed, dried and aired; Step 2, antibacterial, antiviral and ultraviolet treatment, honeysuckle and Huangcen are respectively placed in an 80% ethanol solution, according to the material-liquid ratio of 1:20, at a temperature of 98 DEG C, for 120 min, after treatment, filtration, rotary evaporation and freeze-drying into powder, the honeysuckle extract and Huangqin extract for preparing the functional modification solution are obtained; wherein the chlorogenic acid yield in the honeysuckle extract and Huangqin extract is greater than 6.98%, and the total flavone content is greater than 12.4 %; Then the silk / Lyocell interwoven fabric after modification treatment in step 1 is placed in the functional modification solution, first adjust the bath ratio to 1:15, then increase the temperature to 90-92 DEG C at a speed of 1 DEG C per minute, after 60-80 min of treatment, the fabric is washed, dried and aired; the proportion of each component in the functional modification solution is: the honeysuckle extract is 6-8% (o.w.f), the Huangcen extract is 5-8% (o.w.f), and the citric acid is 1 g / L; Step 3, synergistic treatment, the silk / Lyocell interwoven fabric obtained by modification treatment in step 2 is placed in a synergistic treatment liquid for synergistic treatment, the treatment temperature is 40-80 DEG C, the treatment time is 30-45 min, the synergistic agent in the synergistic treatment liquid is 3-5% (o.w.f), and the citric acid is 1-3% (o.w.f); the functional modified silk / Lyocell interwoven fabric is obtained after treatment. The synergistic agent is ferrous sulfate, silver nitrate or potassium aluminum sulfate; Step 4, soaping treatment, the fabric obtained in step 3 is placed in 1 g / L neutral detergent and treated at 50 DEG C for 15 min.

[0022] As shown in Figure 1 and Figure 2 , it can be seen from the ultraviolet-visible spectrum absorption spectrum that the honeysuckle and Huangqin extracts extracted by the application have ultraviolet-resistant function.

[0023] Example 1: An antibacterial, antiviral and ultraviolet-resistant functional silk / Lyocell interwoven fabric, the preparation steps are as follows: Step 1, modification treatment: modification agent FE-DS 2-5 grams / liter, 60 DEG C * 30 minutes, bath ratio 1:15; the modification agent FE-DS is purchased from Zhongshan City Hongsheng Biological Technology Co., Ltd., which provides corresponding modification agent finished products; Step 2, antibacterial, antiviral and anti-UV treatment, the fabric obtained in step 1 is placed in a dyeing solution of honeysuckle extract 6% (o.w.f) and 1 g / L CA, and the temperature is raised to 90 ℃, after 60 min of treatment, the fabric is washed and dried; Step 3, synergistic treatment: the fabric obtained in step 2 is placed in a 5% (o.w.f) alum solution; the bath ratio is adjusted to 1:15, and the temperature is heated to 80 ℃, and the treatment is carried out for 30 min, finally, the fabric is washed and dried; Step 4, soaping treatment, the fabric obtained in step 3 is placed in 1 g / L neutral detergent, and treated at 50 ℃ for 15 min.

[0024] After testing, the treated real silk / Lyocell interwoven fabric has a staphylococcus aureus inhibition rate of 97.6%, an escherichia coli inhibition rate of 96.3%, and a UPF (ultraviolet protection factor) value of 50+. After 20 times of standard washing, the staphylococcus aureus inhibition rate is greater than 85.3%, the escherichia coli inhibition rate is greater than 84.3%, and the UPF (ultraviolet protection factor) value is 50+.

[0025] Example 2: An antibacterial, antiviral and anti-UV functional real silk / Lyocell interwoven fabric, the preparation steps are as follows: Step 1, modification treatment: 2-5 g / L of modifier FE-DS, 60 ℃*30 min, bath ratio 1:15; Step 2, antibacterial, antiviral and anti-UV treatment, the fabric obtained in step 1 is placed in a dyeing solution of honeysuckle extract 6% (o.w.f) and 1 g / L CA, and the temperature is raised to 90 ℃, after 60 min of treatment, the fabric is washed and dried; Step 3, synergistic treatment: the fabric obtained in step 2 is placed in a 5% (o.w.f) alum solution; the bath ratio is adjusted to 1:15, and the temperature is heated to 80 ℃, and the treatment is carried out for 30 min, finally, the fabric is washed and dried; Step 4, soaping treatment, the fabric obtained in step 3 is placed in 1 g / L neutral detergent, and treated at 50 ℃ for 15 min.

[0026] After testing, the treated real silk / Lyocell interwoven fabric has a staphylococcus aureus inhibition rate of 97.6%, an escherichia coli inhibition rate of 96.3%, and a UPF (ultraviolet protection factor) value of 50+. After 20 times of standard washing, the staphylococcus aureus inhibition rate is greater than 85.3%, the escherichia coli inhibition rate is greater than 84.3%, and the UPF (ultraviolet protection factor) value is 50+.

[0027] Example 3: A kind of antibacterial antiviral anti-UV functional silk / Lyocell interwoven fabric, preparation steps are as follows: Step 1, modification treatment: modifier FE-DS 2-5 grams / liter, 60 ℃ * 30 minutes, bath ratio 1:15; Step 2, antibacterial antiviral anti-UV treatment, the fabric obtained in step 1 is placed in the dye liquor of 6% (o.w.f) Huangqin extract, 1 g / L CA, and the temperature is increased to 90 ℃, after 60 min treatment, the fabric is washed and dried. Step 3, synergistic treatment: the fabric obtained in step 2 is placed in 5% (o.w.f) ferrous sulfate solution;Adjust bath ratio to 1:15, and heat the temperature to 60 ℃, treat for 30 min, finally, wash the fabric and dry. Step 4, soaping treatment, the fabric obtained in step 3 is placed in 1 g / L neutral detergent, and treated at 50 ℃ for 15 minutes.

[0028] After testing, the treated silk / Lyocell interwoven fabric has a staphylococcus aureus inhibition rate of 98.9%, an escherichia coli inhibition rate of 96.3%, and a UPF (ultraviolet protection factor) value of 50+. After 20 standard washes, the staphylococcus aureus inhibition rate is greater than 86.7%, the escherichia coli inhibition rate is greater than 85.3%, and the UPF (ultraviolet protection factor) value is 50+.

[0029] Example 4: A kind of antibacterial antiviral anti-UV functional silk / Lyocell interwoven fabric, preparation steps are as follows: Step 1, modification treatment: modifier FE-DS 2-5 grams / liter, 60 ℃ * 30 minutes, bath ratio 1:15; Step 2, antibacterial antiviral anti-UV treatment, the fabric obtained in step 1 is placed in the dye liquor of 7% (o.w.f) honeysuckle extract, 1 g / L CA, and the temperature is increased to 90 ℃, after 60 min treatment, the fabric is washed and dried. Step 3, synergistic treatment: the fabric obtained in step 2 is placed in 5% (o.w.f) alum solution;Adjust bath ratio to 1:15, and heat the temperature to 80 ℃, treat for 30 min, finally, wash the fabric and dry. Step 4, soaping treatment, the fabric obtained in step 3 is placed in 1 g / L neutral detergent, and treated at 50 ℃ for 15 minutes.

[0030] After testing, the treated silk / Lyocell interwoven fabric has a staphylococcus aureus inhibition rate of 99.2% and a UPF (ultraviolet protection factor) value of 50+. After 20 standard washes, the staphylococcus aureus inhibition rate is greater than 88.7% and the UPF (ultraviolet protection factor) value is 50+.

[0031] Example 5 An antibacterial, antiviral and anti-ultraviolet functional silk / Lyocell interwoven fabric, the preparation steps are as follows: Step 1, modification treatment: modifier FE-DS 2-5 grams / liter, 60°C*30 minutes, bath ratio 1:15; Step 2, antibacterial, antiviral and anti-ultraviolet treatment, place the fabric obtained in step 1 in a dyeing solution of honeysuckle extract 8% (o.w.f) and Huangqin extract 6% (o.w.f), 1 g / L CA, and raise the temperature to 90°C. After 60 minutes of treatment, wash the fabric and dry it; Step 3, synergistic treatment: place the fabric obtained in step 2 in a 4% (o.w.f) silver nitrate solution; adjust the bath ratio to 1:15 and heat the temperature to 40°C. After 30 minutes of treatment, wash the fabric and dry it; Step 4, soaping treatment, place the fabric obtained in step 3 in 1 g / L neutral detergent and treat it at 50°C for 15 minutes.

[0032] After testing, the treated silk / Lyocell interwoven fabric has a staphylococcus aureus inhibition rate of 99.9%, an escherichia coli inhibition rate of 99.3%, a UPF (ultraviolet protection factor) value of 50+, and an H1N1 influenza A virus antiviral activity rate of 95.3%. After 20 standard washes, the staphylococcus aureus inhibition rate is greater than 90.7%, the escherichia coli inhibition rate is greater than 89.3%, the UPF (ultraviolet protection factor) value is 50+, and the H1N1 influenza A virus antiviral activity rate is 85.2%.

[0033] Example 6 An antibacterial, antiviral and anti-ultraviolet functional silk / Lyocell interwoven fabric, the preparation steps are as follows: Step 1, modification treatment: modifier FE-DS 2-5 grams / liter, 60°C*30 minutes, bath ratio 1:15; Step 2, antibacterial, antiviral and anti-ultraviolet treatment, place the fabric obtained in step 1 in a dyeing solution of honeysuckle extract 7% (o.w.f) and Huangqin extract 7% (o.w.f), 1 g / L CA, and raise the temperature to 90°C. After 60 minutes of treatment, wash the fabric and dry it; Step 3, synergistic treatment: the fabric obtained in step 2 is put into a 5% (o.w.f) silver nitrate solution; the bath ratio is adjusted to 1:15, and the temperature is heated to 40 ℃, and treated for 30 min; finally, the fabric is washed and dried; Step 4, soaping treatment, the fabric obtained in step 3 is put into 1 g / L neutral detergent, and treated at 50 ℃ for 15 min.

[0034] After testing, the treated real silk / Lyocell interwoven fabric has a 99.9% antibacterial rate against Staphylococcus aureus, a 99.3% antibacterial rate against Escherichia coli, a UPF (ultraviolet protection factor) value of 50+, and a 95.5% antiviral activity rate against H1N1 influenza A virus. After 20 standard washes, the antibacterial rate against Staphylococcus aureus is greater than 90.6%, the antibacterial rate against Escherichia coli is greater than 89.6%, the UPF (ultraviolet protection factor) value is 50+, and the antiviral activity rate against H1N1 influenza A virus is 82.8%.

[0035] As can be seen from the above, the combination of honeysuckle and scutellaria extract has better antibacterial effect; the skilled person in the art cannot predict the synergistic durable effect of the ternary system of honeysuckle-scutellaria-combination synergistic agent on real silk / Lyocell, which is the key to the difference between the technical solution of the present application and the prior art.

[0036] It is obvious to those skilled in the art that, on the basis of the above teaching, certain modifications, combinations and variations can also be made.

Claims

1. A natural antibacterial, antiviral and anti-ultraviolet functional pure silk Lyocell interwoven fabric, characterized in that: The interwoven fabric is prepared according to the following steps: Step 1, modification treatment, the silk / Lyocell interwoven fabric is placed in a 2-5 g / L modifier solution, the bath ratio is 1:15, the temperature is 60-65 DEG C, and the time is 30-45 min, then washed, dried; Step 2, antibacterial, antiviral and ultraviolet treatment, the silk / Lyocell interwoven fabric after modification treatment in step 1 is placed in a functional modification solution, first adjust the bath ratio to 1:15, then increase the temperature to 90-92 DEG C at a rate of 1 DEG C per minute, and after 60-80 min of treatment, the fabric is washed and dried; the ratio of each component in the functional modification solution is: honeysuckle extract 6-8% (o.w.f), Huangcen extract 5-8% (o.w.f), and citric acid 1 g / L; Step 3, synergistic treatment, the silk / Lyocell interwoven fabric obtained in step 2 is placed in a synergistic treatment solution for synergistic treatment, the treatment temperature is 40-80 DEG C, the treatment time is 30-45 min, the synergistic agent in the synergistic treatment solution is 3-5% (o.w.f), and the citric acid is 1-3% (o.w.f); the functional modified silk / Lyocell interwoven fabric is obtained after treatment.

2. The interwoven fabric of claim 1, wherein: The modifier used in the modifier solution in step 1 is modifier FE-DS.

3. The interwoven fabric of claim 1, wherein: The preparation process of the honeysuckle extract and the Huangqin extract in the functional modification solution in step 2 is as follows: the honeysuckle and Huangcen are respectively put into an 80% ethanol solution, the solid-liquid ratio is 1:20, the temperature is 98 DEG C, and the treatment time is 120 min, after treatment, filtration, rotary evaporation and freeze-drying into powder.

4. The interwoven fabric of claim 1, wherein: The synergistic agent in step 3 is ferrous sulfate, silver nitrate or potassium aluminum sulfate.

5. The interwoven fabric of claim 1, wherein: The yield of chlorogenic acid in the honeysuckle extract and the Huangqin extract in step 1 is greater than 6.98%, and the total flavonoid content is greater than 12.4%.

6. The interwoven fabric of claim 1, wherein: Step 4, soaping treatment, the fabric obtained in step 3 is placed in 1 g / L neutral detergent and treated at 50 DEG C for 15 min.

7. The interwoven fabric of claim 1, wherein: The mass ratio of the honeysuckle extract to the Huangqin extract in the functional modification solution is 1:0.8-1.2.

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