CN117926500A - Full-China hemp fiber mask cloth and preparation method thereof - Google Patents
Full-China hemp fiber mask cloth and preparation method thereof Download PDFInfo
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- CN117926500A CN117926500A CN202311691079.2A CN202311691079A CN117926500A CN 117926500 A CN117926500 A CN 117926500A CN 202311691079 A CN202311691079 A CN 202311691079A CN 117926500 A CN117926500 A CN 117926500A
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- 239000000835 fiber Substances 0.000 title claims abstract description 102
- 239000011487 hemp Substances 0.000 title claims abstract description 91
- 239000004744 fabric Substances 0.000 title claims abstract description 52
- 244000025254 Cannabis sativa Species 0.000 title claims abstract description 51
- 235000012766 Cannabis sativa ssp. sativa var. sativa Nutrition 0.000 title claims abstract description 51
- 235000012765 Cannabis sativa ssp. sativa var. spontanea Nutrition 0.000 title claims abstract description 51
- 235000009120 camo Nutrition 0.000 title claims abstract description 51
- 235000005607 chanvre indien Nutrition 0.000 title claims abstract description 51
- 238000002360 preparation method Methods 0.000 title claims description 16
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical class O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 50
- 229920001661 Chitosan Polymers 0.000 claims abstract description 19
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 claims abstract description 15
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 38
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 30
- 239000000243 solution Substances 0.000 claims description 28
- 238000000034 method Methods 0.000 claims description 21
- 238000001035 drying Methods 0.000 claims description 20
- 239000011259 mixed solution Substances 0.000 claims description 18
- XMPZTFVPEKAKFH-UHFFFAOYSA-P ceric ammonium nitrate Chemical compound [NH4+].[NH4+].[Ce+4].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O XMPZTFVPEKAKFH-UHFFFAOYSA-P 0.000 claims description 16
- 238000006243 chemical reaction Methods 0.000 claims description 15
- 238000005406 washing Methods 0.000 claims description 15
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 14
- 239000000725 suspension Substances 0.000 claims description 12
- 239000012153 distilled water Substances 0.000 claims description 11
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 10
- 239000008367 deionised water Substances 0.000 claims description 10
- 229910021641 deionized water Inorganic materials 0.000 claims description 10
- 238000001914 filtration Methods 0.000 claims description 10
- 230000007935 neutral effect Effects 0.000 claims description 10
- 229910017604 nitric acid Inorganic materials 0.000 claims description 10
- 238000003756 stirring Methods 0.000 claims description 10
- 229960000583 acetic acid Drugs 0.000 claims description 7
- 239000012362 glacial acetic acid Substances 0.000 claims description 7
- 238000009210 therapy by ultrasound Methods 0.000 claims description 7
- 239000004745 nonwoven fabric Substances 0.000 claims description 6
- 238000004140 cleaning Methods 0.000 claims description 5
- 239000000706 filtrate Substances 0.000 claims description 5
- 238000000227 grinding Methods 0.000 claims description 5
- 239000012535 impurity Substances 0.000 claims description 5
- 238000007873 sieving Methods 0.000 claims description 5
- 238000002791 soaking Methods 0.000 claims description 5
- HKVFISRIUUGTIB-UHFFFAOYSA-O azanium;cerium;nitrate Chemical compound [NH4+].[Ce].[O-][N+]([O-])=O HKVFISRIUUGTIB-UHFFFAOYSA-O 0.000 claims description 2
- 230000000844 anti-bacterial effect Effects 0.000 abstract description 20
- 229920002125 Sokalan® Polymers 0.000 abstract description 6
- 239000004584 polyacrylic acid Substances 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 4
- 238000012986 modification Methods 0.000 abstract description 3
- 230000004048 modification Effects 0.000 abstract description 3
- 235000015097 nutrients Nutrition 0.000 abstract description 2
- 230000000052 comparative effect Effects 0.000 description 28
- 238000010521 absorption reaction Methods 0.000 description 13
- 238000012360 testing method Methods 0.000 description 10
- 239000000463 material Substances 0.000 description 4
- 230000001815 facial effect Effects 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 241000588724 Escherichia coli Species 0.000 description 2
- NIPNSKYNPDTRPC-UHFFFAOYSA-N N-[2-oxo-2-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)ethyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(CNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 NIPNSKYNPDTRPC-UHFFFAOYSA-N 0.000 description 2
- 241000191967 Staphylococcus aureus Species 0.000 description 2
- 125000003277 amino group Chemical group 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000011068 loading method Methods 0.000 description 2
- 230000001050 lubricating effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 231100000252 nontoxic Toxicity 0.000 description 2
- 230000003000 nontoxic effect Effects 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000003712 anti-aging effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 230000003020 moisturizing effect Effects 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 230000002087 whitening effect Effects 0.000 description 1
Abstract
The invention discloses full hemp fiber mask cloth in the field of skin care products, which comprises the following components in parts by weight: 60-80 parts of China hemp fiber, 5-8 parts of modified diatomite and 15-20 parts of acrylic acid. According to the invention, the China-hemp fiber is subjected to polyacrylic acid modification, the hydrophilicity and skin affinity of the China-hemp fiber can be improved by the polyacrylic acid modification, so that the China-hemp fiber is more easily in close contact with the surface of the skin, the effect of effectively conveying nutrient components to the surface and deep layer of the skin is facilitated, and meanwhile, the antibacterial effect and durability of the mask cloth can be improved by adding chitosan modified diatomite.
Description
Technical Field
The invention belongs to the technical field of skin care products, and particularly relates to full-China hemp fiber mask cloth and a preparation method thereof.
Background
The facial mask is a skin care product, and is mostly used by matching with essence, and various skin care effects, such as moisturizing, whitening, anti-aging, balancing grease and the like, are realized according to the formula of the essence, so that the facial mask is relatively convenient to use, simple to operate, time-saving and good in skin care effect; the most widely used mask base material in the market is non-woven fabric, which is a non-woven fiber product with soft, breathable and planar structure formed by using polymer slices, short fibers or filaments through various fiber web forming and consolidation technologies, and has the characteristics of short manufacturing process flow, high production speed, high yield and low cost.
The prior art mainly has the following problems: the mask cloth has poor skin-friendly property and poor antibacterial effect.
Disclosure of Invention
Aiming at the situation, in order to overcome the defects of the prior art, the invention provides the full-China hemp fiber mask cloth and the preparation method thereof, and in order to solve the problems of poor skin-friendly property and poor antibacterial effect of the mask cloth, the invention provides the method for modifying the China hemp fibers by polyacrylic acid, which can improve the hydrophilicity and skin-friendly property of the China hemp fibers, enable the China hemp fibers to form close contact with the skin surface more easily, be beneficial to effectively conveying nutrient components to the skin surface and deep layer, and simultaneously improve the antibacterial effect and durability of the mask cloth by adding chitosan modified diatomite.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows: the invention provides full-China-hemp fiber mask cloth and a preparation method thereof, wherein the full-China-hemp fiber mask cloth comprises the following components in parts by weight: 60-80 parts of China hemp fiber, 5-8 parts of modified diatomite and 15-20 parts of acrylic acid.
Further, the preparation method of the modified diatomite comprises the following steps:
s1, adding diatomite into 50mL of deionized water, performing ultrasonic treatment to obtain a suspension, adding chitosan into 50mL of glacial acetic acid solution, stirring until the chitosan is completely dissolved, and adding the chitosan into the suspension to obtain a diatomite mixed solution;
S2, carrying out water bath reaction on the diatomite mixed solution obtained in the step S1 at 70 ℃ for 2-3 hours, filtering, washing with deionized water to be neutral, drying in an oven at 60 ℃ for 10-12 hours, grinding, and sieving with a 100-mesh sieve to obtain the modified diatomite.
Further, in step S1, the mass ratio of the diatomite to the chitosan is 10:2-4.
Further, in step S1, the power of the ultrasonic treatment is 200W, and the time is 10-15min.
Further, in step S1, the volume fraction of the glacial acetic acid solution is 4%.
The invention provides a preparation method of full hemp fiber mask cloth, which comprises the following steps:
(1) Repeatedly cleaning the hemp fiber to remove surface impurities, airing, putting into a sodium hydroxide solution, soaking for 12 hours at 40-45 ℃, taking out, washing with distilled water until filtrate is neutral, and drying to obtain the treated hemp fiber;
(2) Adding the treated China hemp fiber and ceric ammonium nitrate in the step (1) into a flask containing 50mL of nitric acid solution, and stirring for 20-30min to obtain a mixed solution;
(3) Placing the mixed solution obtained in the step (2) into a reaction kettle, adding acrylic acid and modified diatomite, reacting for 6-8 hours at the temperature of 60-65 ℃, filtering after the reaction is finished, washing with distilled water until the pH value is 7.0, and drying for 12 hours at the temperature of 60 ℃ to obtain modified China hemp fibers;
(4) And preparing non-woven fabrics from the modified China-hemp fibers by adopting a water-jet method, and drying to obtain the full China-hemp fiber mask cloth.
Further, in step (1), the mass fraction of the sodium hydroxide solution is 5%.
Further, in the step (2), the mass ratio of the hemp fiber to the ammonium cerium nitrate is 1:4-6.
Further, in the step (2), the mass fraction of the nitric acid solution is 20%.
The beneficial effects obtained by the invention are as follows:
According to the invention, the mask cloth is prepared from the polyacrylic acid modified China-hemp fibers, so that the hydrophilicity and skin affinity of the China-hemp fibers are improved, and meanwhile, the chitosan modified diatomite is added, so that the antibacterial effect and durability of the China-hemp fiber mask cloth are improved; the hemp fiber has good functions of moisture absorption, moisture dissipation and ventilation and natural antibacterial property, so that the facial mask cloth prepared from the hemp fiber has good moisture absorption and moisture preservation effects and also has natural antibacterial effects; the hemp fiber is modified by the acrylic acid, polar hydrophilic groups are introduced to the surface of the fiber, the modified fiber has better hygroscopicity, essence in the mask can be fully absorbed, so that the mask can better permeate into skin, meanwhile, the acrylic acid covers the surface of the fiber, and the formed lubricating layer can effectively reduce friction coefficient among the fibers, reduce puncture to skin and make the mask more skin-friendly; the diatomite has a special porous structure, has a large specific surface area and strong surface adsorption performance, is a natural, nontoxic and easily degradable high molecular polymer, contains a large amount of free amino groups, has a good antibacterial effect, can improve the lasting antibacterial effect of the chitosan by loading the chitosan with the diatomite, and can increase the stability and toughness of the mask cloth, so that the mask cloth is more durable.
Drawings
FIG. 1 is a graph showing the results of the water absorption test of the full China-hemp fiber mask cloth according to examples 1 to 3 and comparative examples 1 to 2 of the present invention;
FIG. 2 is a graph showing the results of antibacterial effect tests of the full-China-hemp fiber mask cloth according to examples 1 to 3 and comparative examples 1 to 2 of the present invention;
FIG. 3 is a graph showing the tensile properties of the full-China-hemp fiber mask cloth according to examples 1 to 3 and comparative examples 1 to 2.
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention; all other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art. In addition, any methods and materials similar or equivalent to those described herein can be used in the present application. The preferred methods and materials described herein are illustrative only and should not be construed as limiting the application.
The experimental methods in the following examples are all conventional methods unless otherwise specified; the test materials used in the examples described below, unless otherwise specified, were purchased from commercial sources.
Example 1
The full hemp fiber mask cloth comprises the following components in parts by weight: 60 parts of China hemp fiber, 5 parts of modified diatomite and 15 parts of acrylic acid.
Further, the preparation method of the modified diatomite comprises the following steps:
S1, adding 5g of diatomite into 50mL of deionized water, performing ultrasonic treatment with the power of 200W for 10min to obtain a suspension, adding 1g of chitosan into 50mL of glacial acetic acid solution with the volume fraction of 4%, stirring until the diatomite is completely dissolved, and adding the suspension into the suspension to obtain a diatomite mixture;
s2, carrying out water bath reaction on the diatomite mixed solution obtained in the step S1 at 70 ℃ for 2 hours, filtering, washing with deionized water to be neutral, drying in an oven at 60 ℃ for 10 hours, grinding and sieving with a 100-mesh sieve to obtain the modified diatomite.
The embodiment provides a preparation method of full hemp fiber mask cloth, which specifically comprises the following steps:
(1) Repeatedly cleaning the China hemp fiber to remove surface impurities, airing, putting into a sodium hydroxide solution, soaking for 12 hours at 40 ℃ with the mass fraction of the sodium hydroxide solution being 5%, taking out, washing with distilled water until filtrate is neutral, and drying to obtain the treated China hemp fiber;
(2) Adding the treated China-hemp fibers and ceric ammonium nitrate in the step (1) into a flask containing 50mL of nitric acid solution, wherein the mass ratio of the China-hemp fibers to the ceric ammonium nitrate is 1:4, and the mass fraction of the nitric acid solution is 20%, and stirring for 20min to obtain a mixed solution;
(3) Placing the mixed solution obtained in the step (2) into a reaction kettle, adding acrylic acid and modified diatomite, reacting for 6 hours at the temperature of 60 ℃, filtering after the reaction is finished, washing with distilled water until the pH value is 7.0, and drying for 12 hours at the temperature of 60 ℃ to obtain modified hemp fibers;
(4) And preparing non-woven fabrics from the modified China-hemp fibers by adopting a water-jet method, and drying to obtain the full China-hemp fiber mask cloth.
Example 2
The full hemp fiber mask cloth comprises the following components in parts by weight: 80 parts of China hemp fiber, 8 parts of modified diatomite and 20 parts of acrylic acid.
Further, the preparation method of the modified diatomite comprises the following steps:
s1, adding 5g of diatomite into 50mL of deionized water, performing ultrasonic treatment with the power of 200W for 15min to obtain a suspension, adding 2g of chitosan into 50mL of glacial acetic acid solution with the volume fraction of 4%, stirring until the diatomite is completely dissolved, and adding the suspension into the suspension to obtain a diatomite mixture;
s2, carrying out water bath reaction on the diatomite mixed solution obtained in the step S1 at 70 ℃ for 3 hours, filtering, washing with deionized water to be neutral, drying in an oven at 60 ℃ for 12 hours, grinding and sieving with a 100-mesh sieve to obtain the modified diatomite.
The embodiment provides a preparation method of full hemp fiber mask cloth, which specifically comprises the following steps:
(1) Repeatedly cleaning the China hemp fiber to remove surface impurities, airing, putting into a sodium hydroxide solution, soaking for 12 hours at 45 ℃ with the mass fraction of the sodium hydroxide solution being 5%, taking out, washing with distilled water until filtrate is neutral, and drying to obtain the treated China hemp fiber;
(2) Adding the treated China-hemp fibers and ceric ammonium nitrate in the step (1) into a flask containing 50mL of nitric acid solution, wherein the mass ratio of the China-hemp fibers to the ceric ammonium nitrate is 1:6, and the mass fraction of the nitric acid solution is 20%, and stirring for 30min to obtain a mixed solution;
(3) Placing the mixed solution obtained in the step (2) into a reaction kettle, adding acrylic acid and modified diatomite, reacting for 8 hours at the temperature of 65 ℃, filtering after the reaction is finished, washing with distilled water until the pH value is 7.0, and drying for 12 hours at the temperature of 60 ℃ to obtain modified hemp fibers;
(4) And preparing non-woven fabrics from the modified China-hemp fibers by adopting a water-jet method, and drying to obtain the full China-hemp fiber mask cloth.
Example 3
The full hemp fiber mask cloth comprises the following components in parts by weight: 70 parts of China hemp fiber, 7 parts of modified diatomite and 18 parts of acrylic acid.
Further, the preparation method of the modified diatomite comprises the following steps:
S1, adding 5g of diatomite into 50mL of deionized water, performing ultrasonic treatment with the power of 200W for 15min to obtain a suspension, adding 1.5g of chitosan into 50mL of glacial acetic acid solution with the volume fraction of 4%, stirring until the diatomite is completely dissolved, and adding the solution into the suspension to obtain a diatomite mixed solution;
s2, carrying out water bath reaction on the diatomite mixed solution obtained in the step S1 at 70 ℃ for 3 hours, filtering, washing with deionized water to be neutral, drying in an oven at 60 ℃ for 12 hours, grinding and sieving with a 100-mesh sieve to obtain the modified diatomite.
The embodiment provides a preparation method of full hemp fiber mask cloth, which specifically comprises the following steps:
(1) Repeatedly cleaning the China hemp fiber to remove surface impurities, airing, putting into a sodium hydroxide solution, soaking for 12 hours at 40 ℃ with the mass fraction of the sodium hydroxide solution being 5%, taking out, washing with distilled water until filtrate is neutral, and drying to obtain the treated China hemp fiber;
(2) Adding the treated China-hemp fibers and ceric ammonium nitrate in the step (1) into a flask containing 50mL of nitric acid solution, wherein the mass ratio of the China-hemp fibers to the ceric ammonium nitrate is 1:5, and the mass fraction of the nitric acid solution is 20%, and stirring for 25min to obtain a mixed solution;
(3) Placing the mixed solution obtained in the step (2) into a reaction kettle, adding acrylic acid and modified diatomite, reacting for 7 hours at the temperature of 62 ℃, filtering after the reaction is finished, washing with distilled water until the pH value is 7.0, and drying for 12 hours at the temperature of 60 ℃ to obtain modified hemp fibers;
(4) And preparing non-woven fabrics from the modified China-hemp fibers by adopting a water-jet method, and drying to obtain the full China-hemp fiber mask cloth.
Comparative example 1
This comparative example provides a full hemp fiber mask cloth and a preparation method thereof, which is different from example 1 in that all components do not contain acrylic acid, and the rest components and the content of the components are the same as example 1.
Comparative example 2
This comparative example provides a full China hemp fiber mask cloth and a preparation method thereof, which is different from example 1 in that all components do not contain modified diatomite, and the contents of the rest components and components are the same as those in example 1.
Experimental example
1. The water absorption test is carried out on the full-China hemp fiber mask cloth prepared in the embodiment 1-3 and the comparative example 1 and 2, the specific method is that the size of a sample is 100X 100mm according to GB/T24218.6-2010, the sample is taken out after being immersed in distilled water for 1min, the sample is hung vertically for 2min to remove redundant water, then the sample is weighed, and the water absorption of the sample is calculated according to the following formula:
water absorption= (mass after water absorption of sample-original mass of sample)/original mass of sample x 100%.
2. The antibacterial effect test is carried out on the full-China-hemp fiber mask cloth prepared in the embodiment 1-3 and the comparative embodiment 1 and 2, and the specific method is referred to GB 15979-2002, and the antibacterial rate of the full-China-hemp fiber mask cloth on escherichia coli and staphylococcus aureus is tested.
3. The full-China hemp fiber mask cloth prepared in the embodiments 1-3 and the comparative examples 1 and 2 is subjected to tensile property test, the specific method refers to GB/T24218.3-2010, pretension is set to be 2N, then an instrument is started to conduct sample stretching, when the sample is stretched to break, the instrument automatically records breaking strength, and 5 samples are tested to obtain an average value.
4. The full-China-hemp fiber mask cloth prepared in the embodiments 1-3 and the comparative examples 1 and 2 is subjected to skin-friendly test, and the mask cloth is manufactured into a mask, so that the mask cloth is used for trial and feedback information of trial staff.
Analysis of results
FIG. 1 is a graph showing the results of the water absorption test of the full-China-hemp fiber mask cloths of examples 1-3 and comparative examples 1-2, wherein the water absorption amounts of examples 1-3 are 84%, 82% and 85%, the water absorption amount of comparative example 1 is 59%, the water absorption amount of comparative example 2 is 73%, and the water absorption of example 1 is improved greatly compared with that of comparative example 1 because acrylic acid is used for modifying China-hemp fibers, polar hydrophilic groups are introduced into the surfaces of the fibers, and the modified fibers have better water absorption.
Fig. 2 is a graph showing the antibacterial effect test results of the full-China hemp fiber mask cloth of the embodiment 1-3 and the comparative embodiment 1-2, wherein the antibacterial rate of escherichia coli of the embodiment 1-3 is 73.2%, 71.9% and 72.7% respectively, the antibacterial rate of the comparative embodiment 1 is 68.2% and the antibacterial rate of the comparative embodiment 2 is 45.8% respectively, the antibacterial rate of staphylococcus aureus of the embodiment 1-3 is 67.9%, 66.7% and 66.2% respectively, the comparative embodiment 1 is 63.1% and the comparative embodiment 2 is 39.8% respectively, and the embodiment has better antibacterial effect than the comparative embodiment 2 because the diatomite has a special porous structure, has a huge specific surface area and strong surface adsorption performance, the chitosan is a natural, nontoxic and easily degradable high polymer, contains a large amount of free amino groups, has good antibacterial effect, and the chitosan can improve the durable antibacterial effect of the chitosan through the diatomite loading.
FIG. 3 is a graph showing the tensile properties of the full China hemp fiber mask fabrics of examples 1-3 and comparative examples 1-2, wherein the longitudinal breaking strength of examples 1-3 is 17.2N, 16.3N and 15.9N respectively, the transverse breaking strength of comparative example 1-3 is 10.8, 9.6 and 9.2 respectively, the transverse breaking strength of examples 1-3 is 11.2, the transverse breaking strength of comparative example 1-3 is 7.2 and the transverse breaking strength of comparative example 2 is 6.8 respectively, the tensile properties of example 1 are improved by adding polyacrylic acid compared with comparative example 1, and the stability and toughness of the mask fabrics are improved by adding modified diatomite compared with comparative example 2.
TABLE 1 skin compatibility test results
Table 1 shows the results of the skin-friendly performance test of the full China hemp fiber mask cloths of examples 1-3 and comparative examples 1-2, wherein example 1 has better skin-friendly performance because polyacrylic acid covers the surfaces of the fibers, and the formed lubricating layer can effectively reduce the friction coefficient between the fibers and reduce the pricking to the skin, so that the mask is more skin-friendly.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
The invention and its embodiments have been described above with no limitation, and the invention is illustrated in the figures of the accompanying drawings as one of its embodiments, without limitation in practice. In summary, those skilled in the art, having benefit of this disclosure, will appreciate that the invention can be practiced without the specific details disclosed herein.
Claims (9)
1. The full hemp fiber mask cloth is characterized in that: comprises the following components in parts by weight: 60-80 parts of China hemp fiber, 5-8 parts of modified diatomite and 15-20 parts of acrylic acid.
2.A method for preparing the full-hemp fiber mask cloth according to claim 1, which is characterized in that: the method specifically comprises the following steps:
(1) Repeatedly cleaning the hemp fiber to remove surface impurities, airing, putting into a sodium hydroxide solution, soaking for 12 hours at 40-45 ℃, taking out, washing with distilled water until filtrate is neutral, and drying to obtain the treated hemp fiber;
(2) Adding the treated China hemp fiber and ceric ammonium nitrate in the step (1) into a flask containing 50mL of nitric acid solution, and stirring for 20-30min to obtain a mixed solution;
(3) Placing the mixed solution obtained in the step (2) into a reaction kettle, adding acrylic acid and modified diatomite, reacting for 6-8 hours at the temperature of 60-65 ℃, filtering after the reaction is finished, washing with distilled water until the pH value is 7.0, and drying for 12 hours at the temperature of 60 ℃ to obtain modified China hemp fibers;
(4) And preparing non-woven fabrics from the modified China-hemp fibers by adopting a water-jet method, and drying to obtain the full China-hemp fiber mask cloth.
3. The method for preparing the full-China-hemp fiber mask cloth according to claim 2, which is characterized in that: in step (1), the mass fraction of the sodium hydroxide solution is 5%.
4. The method for preparing the full-China-hemp fiber mask cloth according to claim 3, which is characterized in that: in the step (2), the mass ratio of the hemp fiber to the ammonium cerium nitrate is 1:4-6.
5. The method for preparing the full-China-hemp fiber mask cloth according to claim 4, which is characterized in that: in the step (2), the mass fraction of the nitric acid solution is 20%.
6. The method for preparing the full-China-hemp fiber mask cloth according to claim 5, which is characterized in that: the preparation method of the modified diatomite comprises the following steps:
s1, adding diatomite into 50mL of deionized water, performing ultrasonic treatment to obtain a suspension, adding chitosan into 50mL of glacial acetic acid solution, stirring until the chitosan is completely dissolved, and adding the chitosan into the suspension to obtain a diatomite mixed solution;
S2, carrying out water bath reaction on the diatomite mixed solution obtained in the step S1 at 70 ℃ for 2-3 hours, filtering, washing with deionized water to be neutral, drying in an oven at 60 ℃ for 10-12 hours, grinding, and sieving with a 100-mesh sieve to obtain the modified diatomite.
7. The method for preparing the full-China-hemp fiber mask cloth according to claim 6, which is characterized in that: in the step S1, the mass ratio of the diatomite to the chitosan is 10:2-4.
8. The method for preparing the full-China-hemp fiber mask cloth according to claim 7, wherein the method comprises the following steps: in the step S1, the power of the ultrasonic treatment is 200W, and the time is 10-15min.
9. The method for preparing the full-China-hemp fiber mask cloth according to claim 8, which is characterized in that: in step S1, the volume fraction of the glacial acetic acid solution is 4%.
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| CN202311691079.2A CN117926500A (en) | 2023-12-11 | 2023-12-11 | Full-China hemp fiber mask cloth and preparation method thereof |
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| CN202311691079.2A CN117926500A (en) | 2023-12-11 | 2023-12-11 | Full-China hemp fiber mask cloth and preparation method thereof |
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