CN115110313B - Preparation method of whitening antibacterial finishing fabric and whitening antibacterial finishing fabric - Google Patents
Preparation method of whitening antibacterial finishing fabric and whitening antibacterial finishing fabric Download PDFInfo
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- CN115110313B CN115110313B CN202210660062.XA CN202210660062A CN115110313B CN 115110313 B CN115110313 B CN 115110313B CN 202210660062 A CN202210660062 A CN 202210660062A CN 115110313 B CN115110313 B CN 115110313B
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/32—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond
- D06M11/36—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond with oxides, hydroxides or mixed oxides; with salts derived from anions with an amphoteric element-oxygen bond
- D06M11/44—Oxides or hydroxides of elements of Groups 2 or 12 of the Periodic System; Zincates; Cadmates
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/32—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond
- D06M11/36—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond with oxides, hydroxides or mixed oxides; with salts derived from anions with an amphoteric element-oxygen bond
- D06M11/46—Oxides or hydroxides of elements of Groups 4 or 14 of the Periodic System; Titanates; Zirconates; Stannates; Plumbates
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M16/00—Biochemical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. enzymatic
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/02—Natural fibres, other than mineral fibres
- D06M2101/10—Animal fibres
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/30—Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change
Abstract
The invention discloses a preparation method of a whitening antibacterial finishing fabric and the whitening antibacterial finishing fabric, wherein the preparation method of the whitening antibacterial finishing fabric comprises the steps of uniformly stirring and mixing a natural fruit extracting solution, an antibacterial agent, a polycarboxylic acid finishing agent, a softening agent and water, and then regulating the pH value of the finishing solution to 5-8 to obtain the finishing solution; and immersing the silk fabric into the finishing liquid, heating and immersing, and drying to obtain the whitening antibacterial finishing fabric. The invention adopts the plant extract to mix with the inorganic antibacterial agent, does not need to add other adhesives, adsorbents and the like, has simple and economic steps, is natural and non-irritating, safer and healthier, has no side effect and has the antibacterial property as high as 98.88 percent.
Description
Technical Field
The invention belongs to the technical field of textile fabrics, and particularly relates to a preparation method of a whitening antibacterial finishing fabric and the whitening antibacterial finishing fabric.
Background
With the rapid development of social economy, the quality of life of people is continuously improved and the health concept is changed, and more people start to chose natural and healthy life modes. With the increasing pursuit of comfort, safety and health, the requirements of antibacterial textiles are higher, and the ideal antibacterial finishing agent is developed towards the directions of broad-spectrum antibacterial effectiveness on bacteria, fungi and viruses, no toxicity and harm to consumers, no influence on the quality and appearance of the textiles, green and environment-friendly processing process and the like. Therefore, development of novel multifunctional textile materials and preparation technology is required to meet the increasingly beautiful living needs of people.
The lemon has rich functional components, including flavonoids, citric acid, flavonoids, vitamin A, volatile oil, dietary fiber, pectin, limonin, vitamin C and minerals, wherein the vitamins are rich nutritional components in lemon, especially vitamin C. It has now been found that a number of reasons lead to differences in skin colour, of which the content and distribution of melanin plays a decisive role. The lemon extract is rich in vitamin C, has tyrosinase activity inhibiting effect, and can inhibit melanin synthesis to achieve whitening effect. Lemon has various biological activities such as whitening, antibacterial, and antioxidant effects. Therefore, the lemon is fully utilized, on one hand, the value of the lemon is developed and utilized, and on the other hand, the lemon is convenient, and certain benefits are brought to production and living.
Disclosure of Invention
This section is intended to outline some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section as well as in the description summary and in the title of the application, to avoid obscuring the purpose of this section, the description summary and the title of the invention, which should not be used to limit the scope of the invention.
The present invention has been made in view of the above and/or problems occurring in the prior art.
In order to solve the technical problems, the invention provides the following technical scheme: a preparation method of whitening antibacterial finishing fabric comprises,
uniformly stirring and mixing the natural fruit extract, the antibacterial agent, the polycarboxylic acid finishing agent, the softening agent and water, and then adjusting the pH value of the finishing liquid to 5-8 to obtain the finishing liquid;
and immersing the silk fabric into the finishing liquid, heating and immersing, and drying to obtain the whitening antibacterial finishing fabric.
As a preferable scheme of the preparation method of the whitening antibacterial finishing fabric, the invention comprises the following steps: the finishing liquid comprises, by mass, 1-10 parts of natural fruit extract, 0.5-2 parts of antibacterial agent, 6-8 parts of polycarboxylic acid finishing agent, 1-4 parts of softening agent and 73-88 parts of water.
As a preferable scheme of the preparation method of the whitening antibacterial finishing fabric, the invention comprises the following steps: the natural fruit extract is lemon peel extract.
As a preferable scheme of the preparation method of the whitening antibacterial finishing fabric, the invention comprises the following steps: the preparation method of the lemon peel extract comprises the steps of washing fresh lemon to remove surface sediment, draining, and taking lemon peel part; pulverizing lemon peel; soaking in 70-90% concentration ethanol solution for some time, reflux extracting, filtering, rotary evaporating to eliminate ethanol and concentrating the filtrate to obtain lemon peel extracting solution.
As a preferable scheme of the preparation method of the whitening antibacterial finishing fabric, the invention comprises the following steps: the antibacterial agent comprises one of a nano titanium dioxide antibacterial agent, a nano zinc oxide antibacterial agent and a nano copper oxide antibacterial agent.
As a preferable scheme of the preparation method of the whitening antibacterial finishing fabric, the invention comprises the following steps: the polycarboxylic acid finishing agent comprises one of citric acid, itaconic acid, polymaleic acid and malic acid.
As a preferable scheme of the preparation method of the whitening antibacterial finishing fabric, the invention comprises the following steps: the softener comprises one of a vegetable oil softener, an organic silicon softener and a quaternary ammonium salt softener.
As a preferable scheme of the preparation method of the whitening antibacterial finishing fabric, the invention comprises the following steps: the temperature is raised and the soaking temperature is 40-60 ℃ and the soaking time is 1-3 h.
As a preferable scheme of the preparation method of the whitening antibacterial finishing fabric, the invention comprises the following steps: and the drying temperature is 90-110 ℃, and the drying time is 10-15 min.
The invention also aims to provide the whitening and antibacterial finishing fabric obtained by the preparation method of the whitening and antibacterial finishing fabric, and the prepared finishing fabric has excellent antibacterial activity and a certain whitening effect.
Compared with the prior art, the invention has the following beneficial effects:
the antibacterial agent adopted by the invention is lemon peel extract, nano titanium dioxide, has higher safety, can be naturally degraded, and accords with the consumption psychology of green and environment-friendly and natural return. Wherein the monoterpene substances in lemon extract have certain inhibiting effect on fungi, bacteria, etc. It has now been found that a number of reasons lead to differences in skin colour, of which the content and distribution of melanin plays a decisive role. The lemon extract is rich in vitamin C, has tyrosinase activity inhibiting effect, and can inhibit melanin synthesis to achieve whitening effect.
The whitening antibacterial finishing fabric is formed by wrapping the whitening antibacterial agent on the surface of the fiber and weaving, and the fabric has good whitening antibacterial performance in all directions. The whitening antibacterial finishing fabric does not need to be added with other adhesives, adsorbents and the like in the preparation process, and is natural and free of irritation.
The invention adopts the plant extract and the inorganic antibacterial agent for proportioning, has simple and economical steps, is safer and healthier, is simple and convenient to use, and has no side effect. The antibacterial property of the finishing fabric prepared by the invention is up to 98.88% through antibacterial experiment tests.
Detailed Description
In order that the above-recited objects, features and advantages of the present invention will become more apparent, a more particular description of the invention will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways other than those described herein, and persons skilled in the art will readily appreciate that the present invention is not limited to the specific embodiments disclosed below.
Further, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic can be included in at least one implementation of the invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.
Example 1
(1) Preparing a natural fruit extract: washing fresh fruits (orange, pomelo, lemon, orange, pineapple, mango and banana) with water to remove surface sediment, draining, and taking fruit peel part for standby; crushing fruit peel; soaking pulverized fruit peel in 70% ethanol solution at a feed liquid ratio of 1:5 for 3 hr, reflux extracting for 2 hr, filtering, rotary evaporating to remove ethanol, and concentrating the filtrate to obtain natural fruit extractive solution;
(2) Preparing finishing liquid: 9 parts of natural fruit extract, 1 part of nano titanium dioxide antibacterial agent, 5 parts of polycarboxylic acid finishing agent, 5 parts of vegetable oil softener and 80 parts of water; and (3) after the components are stirred and mixed uniformly, regulating the pH value of the finishing liquid to 7 to prepare the finishing liquid.
(3) Preparing a whitening antibacterial finishing fabric: and immersing the silk fabric into the prepared finishing liquid, heating to 50 ℃ for soaking for 2 hours, and drying at 90 ℃ for 15 minutes to obtain the whitening antibacterial finishing fabric.
Antibacterial test
The antibacterial property qualitative test is carried out on the fabric according to the GB/T20944.2-2007 evaluation of antibacterial property of textiles part 1 Petri dish agar diffusion method. And quantitatively testing the antibacterial property of the fabric according to a ' GB/T20944.2-2007 evaluation of antibacterial property of textiles ' 3 rd part vibration method '. The test results are shown in Table 1.
TABLE 1
As can be seen from Table 1, the antibacterial properties of the extracts of the scindapsus aureus, the mango peel and the banana peel were poor; the orange peel extract, the lemon peel extract and the orange peel extract have strong antibacterial performance on staphylococcus aureus, and the antibacterial performance is not greatly different; for escherichia coli, the antibacterial performance of the lemon peel extract is slightly better than that of the orange peel extract and the orange peel extract.
Whitening Activity test
The inhibition rate of the arbutin analytical pure to tyrosinase is used as a positive control of whitening test of the finishing fabric stripping liquid, and the experimental steps are as follows:
sequentially adding a substrate, arbutin, a buffer solution and tyrosinase into a 96-well plate; and (3) placing the 96-well plate in an enzyme-labeled instrument in a 37 ℃ environment, vibrating for 20 seconds, reacting for 30 minutes, detecting the wavelength to be 475nm, and recording the light absorption value A at the moment. And the inhibition rate of the arbutin on tyrosinase activity is calculated.
Stripping the finished fabric in the embodiment to obtain stripping liquid, and carrying out experiments on the stripping liquid according to a research method for inhibiting tyrosinase activity in vitro. And calculating the inhibition rate of the fabric stripping liquid to be detected on the tyrosinase activity. The test results are shown in Table 2.
TABLE 2
As can be seen from table 2, the finished fabric stripping solution added with the lemon peel extract has the strongest whitening activity, which is obviously higher than other natural fruit extracts, so the lemon peel extract is selected as a subsequent study.
Example 2
(1) Preparing a natural fruit extract: washing fresh lemon to remove surface sediment, draining, and taking the fruit peel part for standby; soaking crushed lemon peel in ethanol solutions (70%, 80%, 90%) with different concentrations at different feed liquid ratios (1:2, 1:5, 1:10) for 3h, reflux-extracting for 2h, filtering, rotary-evaporating to remove ethanol, and concentrating the filtrate to obtain natural fruit extract.
(2) Preparing finishing liquid: according to the mass parts, 8 parts of lemon peel extract, 1 part of nano titanium dioxide antibacterial agent, 6 parts of polycarboxylic acid finishing agent, 5 parts of vegetable oil softener and 80 parts of water are taken; and (3) after the components are stirred and mixed uniformly, regulating the pH value of the finishing liquid to 7 to prepare the finishing liquid.
(3) Preparing a whitening antibacterial fabric: immersing the silk fabric into the prepared finishing liquid, heating to 50 ℃ for soaking for 2 hours, and drying at 90 ℃ for 15 minutes to obtain the whitening antibacterial fabric.
Antibacterial test
The fabrics in the examples were tested qualitatively for antimicrobial properties according to the "evaluation of antimicrobial Properties of textiles in part 1 Petri agar diffusion method" GB/T20944.2-2007. And quantitatively testing the antibacterial property of the fabric according to a ' GB/T20944.2-2007 evaluation of antibacterial property of textiles ' 3 rd part vibration method '. The test results are shown in Table 3.
TABLE 3 Table 3
As can be seen from Table 3, the lemon peel extract obtained by reflux extraction of lemon peel extract in 70% ethanol solution at a feed-to-liquid ratio of 1:5 has strong antibacterial performance on staphylococcus aureus and escherichia coli, and has higher antibacterial effect than that of the combination condition, and can be selected as the optimal condition of the lemon peel extraction process.
Whitening Activity test
The inhibition rate of the arbutin analytical pure to tyrosinase is used as a positive control of whitening test of the finishing fabric stripping liquid, and the experimental steps are as follows:
sequentially adding a substrate, arbutin, a buffer solution and tyrosinase into a 96-well plate; and (3) placing the 96-well plate in an enzyme-labeled instrument in a 37 ℃ environment, vibrating for 20 seconds, reacting for 30 minutes, detecting the wavelength to be 475nm, and recording the light absorption value A at the moment. And the inhibition rate of the arbutin on tyrosinase activity is calculated.
Stripping the finished fabric in the embodiment to obtain stripping liquid, and carrying out experiments on the stripping liquid according to a research method for inhibiting tyrosinase activity in vitro. And calculating the inhibition rate of the fabric stripping liquid to be detected on the tyrosinase activity. The test results are shown in Table 4.
TABLE 4 Table 4
As can be seen from table 4, the optimal process conditions for lemon peel extract are: the feed-liquid ratio is 1:5 and the ethanol concentration is 70%. The whitening activity is strongest at this time, and is higher than other combination conditions. Therefore, the extracting solution extracted under the condition is selected for subsequent research.
Example 3
(1) Preparing a natural fruit extract: washing fresh lemon to remove surface sediment, draining, and taking lemon peel part for standby; pulverizing lemon peel; soaking crushed lemon peel in a 70% ethanol solution for 3 hours according to a feed liquid ratio of 1:5, reflux-extracting for 2 hours, filtering, rotary-steaming to remove ethanol, and concentrating filtrate to obtain lemon peel extract;
(2) Preparing finishing liquid: according to the mass parts, 9 parts of lemon peel extract, 1 part of antibacterial agent (nano titanium dioxide, nano zinc oxide antibacterial agent and nano copper oxide antibacterial agent), 5 parts of polycarboxylic acid finishing agent, 5 parts of vegetable oil softener and 80 parts of water are taken; and (3) after the components are stirred and mixed uniformly, regulating the pH value of the finishing liquid to 7 to prepare the finishing liquid.
(3) Preparing a whitening antibacterial finishing fabric: and immersing the silk fabric into the prepared finishing liquid, heating to 50 ℃ for soaking for 2 hours, and drying at 90 ℃ for 15 minutes to obtain the whitening antibacterial finishing fabric.
Antibacterial test
The antibacterial property qualitative test is carried out on the fabric according to the GB/T20944.2-2007 evaluation of antibacterial property of textiles part 1 Petri dish agar diffusion method. And quantitatively testing the antibacterial property of the fabric according to a ' GB/T20944.2-2007 evaluation of antibacterial property of textiles ' 3 rd part vibration method '. The test results are shown in Table 5.
TABLE 5
As can be seen from table 5, in the case of adding the same natural fruit extract, the antibacterial performance of the finishing liquid to which the nano titanium dioxide antibacterial agent was added was better than that of the finishing liquid to which the nano zinc oxide antibacterial agent and the nano copper oxide antibacterial agent were added, and thus the nano titanium dioxide antibacterial agent was selected as a subsequent study.
Example 4
(1) The preparation method of the lemon peel extract is the same as that of example 3;
(2) Preparing finishing liquid: according to the mass parts, 8 parts of lemon peel extract, 1 part of nano titanium dioxide antibacterial agent, 6 parts of polycarboxylic acid finishing agent, 5 parts of vegetable oil softener and 80 parts of water are taken; and (3) after the components are stirred and mixed uniformly, regulating the pH value of the finishing liquid to 7, and preparing the finishing liquid.
(3) Preparing a whitening antibacterial finishing fabric: immersing the silk fabric into the prepared finishing liquid, heating to 50 ℃ for soaking for 2 hours, and drying at 90 ℃ for 15 minutes to obtain the whitening antibacterial finishing fabric;
example 5
(1) The preparation method of the lemon peel extract is the same as in example 3.
(2) Preparing finishing liquid: according to the parts by weight, 5 parts of lemon peel extract, 2 parts of nano titanium dioxide antibacterial agent, 6 parts of polycarboxylic acid finishing agent, 7 parts of vegetable oil softener and 80 parts of water are taken; after the components are stirred and mixed uniformly, regulating the pH value of the finishing liquid to 7, and preparing the finishing liquid;
(3) Preparing a whitening antibacterial finishing fabric: and immersing the silk fabric into the prepared finishing liquid, heating to 60 ℃ and immersing for 1h, and then drying at 110 ℃ for 10min to obtain the whitening antibacterial finishing fabric.
Example 6
(1) The preparation method of the lemon peel extract is the same as in example 3.
(2) Preparing finishing liquid: according to the mass parts, 11 parts of lemon peel extract, 0.5 part of nano titanium dioxide antibacterial agent, 10 parts of polycarboxylic acid finishing agent, 3.5 parts of vegetable oil softener and 75 parts of water are taken; after the components are stirred and mixed uniformly, regulating the pH value of the finishing liquid to 7, and preparing the finishing liquid;
(3) Preparing a whitening antibacterial finishing fabric: and immersing the silk fabric into the prepared finishing liquid, heating to 40 ℃ and immersing for 3 hours, and drying at 100 ℃ for 12 minutes to obtain the whitening antibacterial finishing fabric.
Comparative example 1
(1) The preparation method of the lemon peel extract is the same as in example 3.
(2) Preparing finishing liquid: according to the parts by weight, 9 parts of lemon peel extract, 6 parts of polycarboxylic acid finishing agent, 5 parts of vegetable oil softener and 80 parts of water are taken; after the components are stirred and mixed uniformly, regulating the pH value of the finishing liquid to 7, and preparing the finishing liquid;
(3) Preparing a whitening antibacterial finishing fabric: and immersing the silk fabric into the prepared finishing liquid, heating to 50 ℃ and immersing for 2 hours, and then drying at 90 ℃ for 15 minutes to obtain the whitening antibacterial finishing fabric.
Comparative example 2
(1) Preparing finishing liquid: according to the parts by weight, 9 parts of nano titanium dioxide antibacterial agent, 6 parts of polycarboxylic acid finishing agent, 5 parts of vegetable oil softener and 80 parts of water are taken; after the components are stirred and mixed uniformly, regulating the pH value of the finishing liquid to 7, and preparing the finishing liquid;
(2) Preparing an antibacterial fabric: immersing the silk fabric into the prepared finishing liquid, heating to 50 ℃ for soaking for 2 hours, and drying at 90 ℃ for 15 minutes to obtain the antibacterial fabric.
Comparative example 3
An unfinished silk fabric was obtained as in the examples.
Antibacterial test
The antibacterial property qualitative test is carried out on the fabric according to the GB/T20944.2-2007 evaluation of antibacterial property of textiles part 1 Petri dish agar diffusion method. The antibacterial properties of the fabrics of examples 4 to 6 and comparative examples 1 to 3 were then quantitatively tested according to the method of evaluation of antibacterial properties of textiles, part 3 shaking method, GB/T20944.2-2007. The test results are shown in tables 6 to 8.
Table 6 results of quantitative antibacterial property experiments of fabrics
Table 7 results of antibacterial ratio experiment of fabrics
| Test strain | Staphylococcus aureus/% | Escherichia coli/% |
| Example 3 | 98.46 | 98.88 |
| Example 4 | 98.24 | 98.33 |
| Example 5 | 97.95 | 98.03 |
| Comparative example 1 | 75.91 | 77.76 |
| Comparative example 2 | 83.93 | 85.90 |
| Comparative example 3 | 0 | 0 |
Table 8 results of bacteriostasis after washing fabric
Through tests, the prepared fabric has antibacterial activity on staphylococcus aureus and escherichia coli, and is shown in table 6. The antibacterial rate of the fabric against two bacteria is shown in table 7. The antibacterial effect of the fabric finished and woven by the composite lemon peel extract and the finishing liquid of the inorganic antibacterial agent is far better than that of the raw natural fiber fabric which is not finished, and the antibacterial effect of the fabric finished by using any one of the two materials is far better than that of the fabric finished by using the two materials independently. The inhibition zones of the embodiment 4, the embodiment 5 and the embodiment 6 are all larger than the sum of the inhibition zones of the comparative example 1 and the comparative example 2, and the synergistic effect of the lemon peel extract and the nano titanium dioxide antibacterial agent can be obtained. The antibacterial rate of the fabric after washing is shown in table 8. Has antibacterial effect after washing for 20 times.
Whitening Activity test
The inhibition rate of the arbutin analytical pure to tyrosinase is used as a positive control of whitening test of the finishing fabric stripping liquid, and the experimental steps are as follows:
sequentially adding a substrate, arbutin, a buffer solution and tyrosinase into a 96-well plate; and (3) placing the 96-well plate in an enzyme-labeled instrument in a 37 ℃ environment, vibrating for 20 seconds, reacting for 30 minutes, detecting the wavelength to be 475nm, and recording the light absorption value A at the moment. And the inhibition rate of the arbutin on tyrosinase activity is calculated.
Stripping the finished fabric in the embodiment to obtain stripping liquid, and carrying out experiments on the stripping liquid according to a research method for inhibiting tyrosinase activity in vitro. Blank control group, positive control group (Xiong Guoxi) and sample group to be tested are designed in experiment. And calculating the inhibition rate of the fabric stripping liquid to be detected on the tyrosinase activity. The test results are shown in Table 9.
Table 9 Experimental results of inhibition of tyrosinase activity by the fabric stripping solution
| Fabric stripping liquid | Inhibition of tyrosinase/% | Whitening activity (tyrosinase inhibition rate > 60%) |
| Example 4 | 81.3 | Has the following components |
| Example 5 | 76.6 | Has the following components |
| Example 6 | 85.2 | Has the following components |
| Positive control group | 100 | Has the following components |
| Blank control group | 0 | Without any means for |
Through tests, the prepared fabric stripping liquid has strong tyrosinase activity inhibition capability, and the inhibition rate of the prepared fabric stripping liquid on tyrosinase activity is shown in table 9. The inhibition rate of the finishing fabric stripping liquid to tyrosinase is above 60%, the effect of inhibiting tyrosinase is stronger, and the stripping liquid is considered to have whitening activity, namely the corresponding finishing fabric has a certain whitening effect.
The antibacterial agent adopted by the invention is lemon peel extract, nano titanium dioxide, has higher safety, can be naturally degraded, and accords with the consumption psychology of green and environment-friendly and natural return. Wherein the monoterpene substances in lemon extract have certain inhibiting effect on fungi, bacteria, etc. It has now been found that a number of reasons lead to differences in skin colour, of which the content and distribution of melanin plays a decisive role. The lemon extract is rich in vitamin C, has tyrosinase activity inhibiting effect, and can inhibit melanin synthesis to achieve whitening effect.
The whitening antibacterial finishing fabric is formed by wrapping the whitening antibacterial agent on the surface of the fiber and weaving, and the fabric has good whitening antibacterial performance in all directions. The whitening antibacterial finishing fabric does not need to be added with other adhesives, adsorbents and the like in the preparation process, and is natural and free of irritation.
It should be noted that the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solution of the present invention may be modified or substituted without departing from the spirit and scope of the technical solution of the present invention, which is intended to be covered in the scope of the claims of the present invention.
Claims (6)
1. A preparation method of a whitening antibacterial finishing fabric is characterized by comprising the following steps of: comprising the steps of (a) a step of,
uniformly stirring and mixing the natural fruit extract, the antibacterial agent, the polycarboxylic acid finishing agent, the softening agent and water, and then adjusting the pH value of the finishing liquid to 5-8 to obtain the finishing liquid;
immersing the silk fabric into the finishing liquid, heating and immersing, and drying to obtain the whitening antibacterial finishing fabric;
the finishing liquid comprises, by mass, 1-10 parts of natural fruit extract, 0.5-2 parts of an antibacterial agent, 6-8 parts of a polycarboxylic acid finishing agent, 1-4 parts of a softening agent and 73-88 parts of water;
the natural fruit extract is lemon peel extract;
the antibacterial agent is a nano titanium dioxide antibacterial agent;
the preparation method of the lemon peel extract comprises the steps of washing fresh lemon to remove surface sediment, draining, and taking lemon peel part; pulverizing lemon peel; soaking pulverized lemon peel in 70% ethanol solution at a feed liquid ratio of 1:5, reflux-extracting, filtering, rotary-evaporating to remove ethanol, and concentrating the filtrate to obtain lemon peel extract.
2. The method for preparing the whitening antibacterial finishing fabric as set forth in claim 1, wherein the method comprises the following steps: the polycarboxylic acid finishing agent comprises one of citric acid, itaconic acid, polymaleic acid and malic acid.
3. The method for preparing the whitening antibacterial finishing fabric as set forth in claim 1 or 2, wherein: the softener comprises one of a vegetable oil softener, an organic silicon softener and a quaternary ammonium salt softener.
4. The method for preparing the whitening antibacterial finishing fabric as set forth in claim 3, wherein: and heating and soaking, wherein the soaking temperature is 40-60 ℃, and the soaking time is 1-3 hours.
5. The method for preparing the whitening antibacterial finishing fabric as set forth in any one of claims 1, 2 and 4, which is characterized in that: and the drying is carried out at the temperature of 90-110 ℃ for 10-15 min.
6. A whitening and antibacterial finishing fabric obtained by the preparation method of the whitening and antibacterial finishing fabric according to any one of claims 1 to 5.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2021107916127 | 2021-07-13 | ||
| CN202110791612.7A CN113445312A (en) | 2021-07-13 | 2021-07-13 | Preparation method of whitening antibacterial finishing fabric and whitening antibacterial finishing fabric |
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| CN115110313A CN115110313A (en) | 2022-09-27 |
| CN115110313B true CN115110313B (en) | 2023-07-28 |
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| CN202210660062.XA Active CN115110313B (en) | 2021-07-13 | 2022-06-13 | Preparation method of whitening antibacterial finishing fabric and whitening antibacterial finishing fabric |
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| EP1097270B1 (en) * | 1998-07-16 | 2003-06-04 | Cognis Deutschland GmbH & Co. KG | Use of pit emulsions |
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| CN105724453A (en) * | 2016-03-11 | 2016-07-06 | 厦门建霖工业有限公司 | Environment-friendly antibacterial agent and preparation method thereof |
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