CN114369959B - Anti-seepage multilayer composite fabric capable of actively eliminating odor of old people and preparation method thereof - Google Patents
Anti-seepage multilayer composite fabric capable of actively eliminating odor of old people and preparation method thereof Download PDFInfo
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- CN114369959B CN114369959B CN202111609022.4A CN202111609022A CN114369959B CN 114369959 B CN114369959 B CN 114369959B CN 202111609022 A CN202111609022 A CN 202111609022A CN 114369959 B CN114369959 B CN 114369959B
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- 239000004744 fabric Substances 0.000 title claims abstract description 73
- 239000002131 composite material Substances 0.000 title claims abstract description 46
- 238000002360 preparation method Methods 0.000 title claims description 14
- 244000280244 Luffa acutangula Species 0.000 claims abstract description 135
- 235000009814 Luffa aegyptiaca Nutrition 0.000 claims abstract description 135
- 229920002678 cellulose Polymers 0.000 claims abstract description 70
- 239000001913 cellulose Substances 0.000 claims abstract description 70
- 239000010410 layer Substances 0.000 claims abstract description 61
- 239000011247 coating layer Substances 0.000 claims abstract description 11
- 239000000843 powder Substances 0.000 claims description 46
- 239000004005 microsphere Substances 0.000 claims description 29
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 27
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 26
- 238000005406 washing Methods 0.000 claims description 20
- 238000000605 extraction Methods 0.000 claims description 19
- 239000000084 colloidal system Substances 0.000 claims description 18
- 238000004108 freeze drying Methods 0.000 claims description 18
- 235000003956 Luffa Nutrition 0.000 claims description 15
- 241000219138 Luffa Species 0.000 claims description 15
- 239000002245 particle Substances 0.000 claims description 15
- 238000002156 mixing Methods 0.000 claims description 14
- 238000009210 therapy by ultrasound Methods 0.000 claims description 12
- 239000011248 coating agent Substances 0.000 claims description 11
- 238000000576 coating method Methods 0.000 claims description 11
- 238000010438 heat treatment Methods 0.000 claims description 11
- 229920005610 lignin Polymers 0.000 claims description 11
- UKLNMMHNWFDKNT-UHFFFAOYSA-M sodium chlorite Chemical compound [Na+].[O-]Cl=O UKLNMMHNWFDKNT-UHFFFAOYSA-M 0.000 claims description 11
- 229960002218 sodium chlorite Drugs 0.000 claims description 11
- 239000000126 substance Substances 0.000 claims description 10
- 229920002488 Hemicellulose Polymers 0.000 claims description 9
- 239000002253 acid Substances 0.000 claims description 9
- 230000002378 acidificating effect Effects 0.000 claims description 9
- 239000008367 deionised water Substances 0.000 claims description 9
- 229910021641 deionized water Inorganic materials 0.000 claims description 9
- 238000009987 spinning Methods 0.000 claims description 9
- 239000011246 composite particle Substances 0.000 claims description 8
- 239000012535 impurity Substances 0.000 claims description 8
- 150000002632 lipids Chemical class 0.000 claims description 8
- 230000001105 regulatory effect Effects 0.000 claims description 5
- -1 anti-leakage Substances 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims description 2
- 238000003379 elimination reaction Methods 0.000 claims 5
- 238000010000 carbonizing Methods 0.000 claims 1
- 238000001179 sorption measurement Methods 0.000 abstract description 12
- 208000035985 Body Odor Diseases 0.000 abstract description 3
- 206010040904 Skin odour abnormal Diseases 0.000 abstract description 3
- 235000019645 odor Nutrition 0.000 description 24
- BSAIUMLZVGUGKX-BQYQJAHWSA-N (E)-non-2-enal Chemical compound CCCCCC\C=C\C=O BSAIUMLZVGUGKX-BQYQJAHWSA-N 0.000 description 9
- BSAIUMLZVGUGKX-UHFFFAOYSA-N 2-Nonenal Natural products CCCCCCC=CC=O BSAIUMLZVGUGKX-UHFFFAOYSA-N 0.000 description 9
- 238000003763 carbonization Methods 0.000 description 8
- 239000013566 allergen Substances 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 7
- 230000032683 aging Effects 0.000 description 5
- 239000011148 porous material Substances 0.000 description 5
- SECPZKHBENQXJG-FPLPWBNLSA-N palmitoleic acid Chemical compound CCCCCC\C=C/CCCCCCCC(O)=O SECPZKHBENQXJG-FPLPWBNLSA-N 0.000 description 4
- 229920003043 Cellulose fiber Polymers 0.000 description 3
- 235000013532 brandy Nutrition 0.000 description 3
- 239000000344 soap Substances 0.000 description 3
- 235000021319 Palmitoleic acid Nutrition 0.000 description 2
- SECPZKHBENQXJG-UHFFFAOYSA-N cis-palmitoleic acid Natural products CCCCCCC=CCCCCCCCC(O)=O SECPZKHBENQXJG-UHFFFAOYSA-N 0.000 description 2
- 238000009940 knitting Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000028327 secretion Effects 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 241000233866 Fungi Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 150000004665 fatty acids Chemical class 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000001785 headspace extraction Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004060 metabolic process Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- 230000009965 odorless effect Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 235000013824 polyphenols Nutrition 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 210000001732 sebaceous gland Anatomy 0.000 description 1
- 210000002374 sebum Anatomy 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 210000000106 sweat gland Anatomy 0.000 description 1
- 230000009967 tasteless effect Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/02—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with cellulose derivatives
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/0002—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate
- D06N3/0009—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate using knitted fabrics
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/0043—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by their foraminous structure; Characteristics of the foamed layer or of cellular layers
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N2205/00—Condition, form or state of the materials
- D06N2205/16—Solution
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N2209/00—Properties of the materials
- D06N2209/12—Permeability or impermeability properties
- D06N2209/121—Permeability to gases, adsorption
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Chemical Or Physical Treatment Of Fibers (AREA)
Abstract
The invention provides an anti-seepage multilayer composite fabric capable of actively eliminating old people taste, which comprises a coating layer, an air layer and a reticular layer, wherein the air layer is positioned between the coating layer and the reticular layer, the coating layer is a waterproof coating layer containing nanopores, the air layer is a loofah sponge composite cellulose sponge, the reticular layer is a reticular knitted fabric, and the average area of reticular holes of the reticular knitted fabric is larger than 0.1cm 2 . According to the invention, the adsorption layer is added on the fabric worn by the elderly, and the body odor of the elderly is relieved by matching the adsorption layer with the waterproof coating layer.
Description
Technical Field
The invention relates to the field of functional fabrics, in particular to an anti-seepage multilayer composite fabric capable of actively eliminating the smell of old people and a preparation method thereof.
Background
In life, when walking into a room where some elderly people live, a peculiar smell may be smelled, but the elderly themselves are rarely smelled, and the person is called "the elderly smell". The japanese researchers have also specifically created a word to address this particular odor in the elderly, called "aging odor". 2-nonenal is a major cause of body odor in elderly people. The human body has physiological body taste, fatty acid secreted by sebaceous glands is oxidized after puberty to form palmitoleic acid, and the palmitoleic acid is combined with lipid peroxide substances formed by further oxidation of sebum to generate 2-nonenal, which is a source of body taste and gradually smelled along with continuous aging of the human body. According to the Japanese study, from around 40 years old, the human body starts to emit odor containing 2-nonenal at a high concentration, and the secretion amount increases with aging of the human body. The smell of 2-nonenal is a mixture of oil-like and weed-like smell, which is disseminated in metabolism by sweat glands. Many old people have little activity and do not always perform ventilation through windows and are in a closed environment for a long time, so that the smell is easily accumulated. As such, this "geriatric taste" is more pronounced in winter when less windowing is performed. In fact, besides such 2-nonenal, the decomposition of microbial groups such as fungi, bacteria, etc. on the surface of the human body also generates odors. Many old people feel cold and do not move in winter, the bath times are reduced, dead skin on the skin surface is accumulated continuously, and the emission of the 'old people taste' is aggravated.
Few families use bath medicinal soaps containing polyphenol compounds to inhibit the generation of 2-nonenal in the middle-aged and elderly people, so that the odor emission of the middle-aged and elderly people is reduced, but the bath medicinal soaps are required for the middle-aged and elderly people to take a bath, and are not suitable for the condition of reduced number of times of taking a bath due to less secretion of grease in winter. Therefore, a simple method for reducing the bath times of the old in winter and removing the smell of the old is needed to be searched.
Disclosure of Invention
The technical problems to be solved are as follows: the invention aims to provide an anti-seepage multilayer composite fabric capable of actively eliminating the smell of the old and a preparation method thereof.
The technical scheme is as follows: the utility model provides an actively eliminate old man's taste antiseep multilayer composite fabric, includes the coating layer, air bed and netted layer, the air bed is located the centre of coating layer and netted layer, the coating layer is the waterproof coating that contains the nanopore, the air bed is retinervus luffae fructus complex cellulose sponge, the netted layer is netted knitting surface fabric, the average area of netted hole of netted knitting surface fabric is greater than 0.1cm 2 。
The preparation method of the anti-seepage multilayer composite fabric capable of actively eliminating the odor of the old comprises the following steps of:
s1, crushing loofah, adding the crushed loofah into a Soxhlet extractor for extraction, adding the extracted substance into a sodium chlorite solution, regulating the solution to be acidic, heating to remove lignin, washing, adding the washed solution into a KOH solution to remove hemicellulose, washing with deionized water to obtain cellulose residues, adding the cellulose residues into a hydrochloric acid solution, treating at a certain temperature, and removing acid to obtain the loofah pure cellulose;
s2, crushing the loofah sponge into 20-50 meshes, and then adding the crushed loofah sponge into a KOH solution to remove lipid impurities on the surface of the loofah sponge to obtain loofah sponge powder;
s3, mixing the loofah sponge powder prepared in the step S2 with the pollen microspheres, so that the pollen microsphere particles can fully enter a net structure of the loofah sponge powder to form composite particles;
s4, adding the loofah sponge pure cellulose prepared in the step S1 into water, performing ultrasonic treatment, and then adding the loofah baking powder prepared in the step S3 into the solution to obtain a loofah sponge cellulose colloid solution;
s5, smearing the loofah sponge cellulose colloid solution on the surface of the reticular layer, and then carrying out freeze-drying treatment on the fabric to obtain the loofah sponge composite fabric with reticular porous surface;
s6, coating the surface of the loofah sponge composite fabric, which is far away from the reticular layer, so as to obtain the multi-layer composite fabric for eliminating the seepage of the odor spinning.
Preferably, in the step S1, the concentration of the sodium chlorite solution is 0.5-1.5wt%, the temperature for removing lignin by heating reaction is 70-80 ℃, the time is 0.5-1h, the concentration of the KOH solution is 1.5-3wt%, the treatment temperature in KOH is 80-90 ℃, the temperature for adding cellulose residues into the hydrochloric acid solution is 70-80 ℃, the time is 1-2h, and the concentration of hydrochloric acid is 1-2wt%.
Preferably, the pollen microsphere in the step S3 is subjected to washing and then is subjected to high-temperature instant surface carbonization, so that the modified pollen microsphere is obtained.
Preferably, in the step S3, the mixing manner of the retinervus luffae fructus powder and the pollen microsphere is that the retinervus luffae fructus powder is located at the middle end of the air supply system, the pollen microsphere is located at the air supply port, and the pollen particle and the retinervus luffae fructus powder are mixed along with the air flow.
Preferably, in the step S4, the concentration of the luffa pure cellulose in water is 1-2wt%, the power of ultrasonic treatment is 200-500W, and the ultrasonic time is 20-30min.
Preferably, in the step S5, the mixture is freeze-dried for 20-40 hours at a temperature of-50- -40 ℃ and a pressure of 20 uPa.
Preferably, the thickness of the air layer is 0.4-2mm.
The beneficial effects are that: the invention has the following advantages:
1. the adsorption capacity of the uniform 2-nonenal is increased due to the multistage pore structure and the larger external specific surface area, more 2-nonenal molecules can enter the mesoporous pore canal communicated with the external surface, so that the adsorption capacity of the 2-nonenal is greatly increased, and the characteristic lays a foundation for the application of the adsorption capacity in the adsorption of organic matters;
2. the preparation method comprises the steps of preparing cellulose fiber solution after processing loofah sponge, mixing the cellulose fiber solution with loofah brandy particles adsorbed with pollen particles to prepare an adsorption material with a multiple porous structure, wherein the loofah sponge is a natural net-shaped porous structure which is formed by surrounding a plurality of layers of fine and tough fibers by criss-cross, the cellulose content of the loofah sponge reaches more than 80%, the sources are abundant, the price is relatively low, the pollen is always used as a good template agent of the porous material, the pollen is slightly directly used for adsorbing the porous material, the pollen is subjected to surface allergen removal, carbonization is carried out, the cellulose fibers form gel, and the loofah sponge powder is fixed on the net-shaped cellulose after freeze-drying.
Detailed Description
The present invention will be described in detail with reference to specific examples, wherein the exemplary embodiments and descriptions of the present invention are provided for the purpose of illustration and are not intended to be limiting.
Example 1
The preparation method of the anti-seepage multilayer composite fabric capable of actively eliminating the odor of the old comprises the following steps of:
s1, crushing loofah, adding the crushed loofah into a Soxhlet extractor for extraction, adding the extracted substance into a sodium chlorite solution with the concentration of 0.5wt%, regulating the solution to be acidic, heating to 70 ℃ for 0.5h, removing lignin, washing, adding into a KOH solution with the concentration of 1.5wt% for removing hemicellulose, washing with deionized water at the treatment temperature of 80 ℃ to obtain cellulose residues, adding the cellulose residues into a hydrochloric acid solution with the concentration of 2wt%, treating at the temperature of 80 ℃ for 1h, and removing acid to obtain the loofah sponge pure cellulose;
s2, crushing the loofah sponge into 20 meshes, and then adding the crushed loofah sponge into a KOH solution to remove lipid impurities on the surface of the loofah sponge to obtain loofah sponge powder;
s3, carrying out high-temperature instantaneous carbonization on the pollen treated and removing the surface allergen, mixing the loofah sponge powder prepared in the step S2 with pollen microspheres for 3 seconds at the temperature of 300 ℃, positioning the loofah sponge powder at the middle tail end of an air supply system, positioning the pollen microspheres at an air supply port, and mixing pollen particles with the loofah sponge powder along with the flow of air, so that the pollen microsphere particles can fully enter a net structure of the loofah sponge powder to form composite particles;
s4, adding the luffa pure cellulose prepared in the step S1 into water, wherein the concentration of the luffa pure cellulose in the water is 1wt%, carrying out ultrasonic treatment with the power of 200W, the ultrasonic time is 30min, treating for 2S, stopping for 2S, repeating the steps, and adding the luffa brandy powder prepared in the step S3 into the solution to obtain a luffa cellulose colloid solution;
s5, smearing a loofah sponge cellulose colloid solution on the surface of the reticular layer, then freeze-drying the fabric, and freeze-drying for 20 hours at the temperature of 50 ℃ below zero and the pressure of 20uPa to obtain the loofah sponge composite fabric with the reticular porous surface and the air layer thickness of 0.4 mm;
s6, coating the surface of the loofah sponge composite fabric, which is far away from the reticular layer, so as to obtain the multi-layer composite fabric for eliminating the seepage of the odor spinning.
Example 2
The preparation method of the anti-seepage multilayer composite fabric capable of actively eliminating the odor of the old comprises the following steps of:
s1, crushing loofah, adding the crushed loofah into a Soxhlet extractor for extraction, adding the extracted substance into a sodium chlorite solution with the concentration of 1.5wt%, regulating the solution to be acidic, heating to 80 ℃ for 1h, removing lignin, washing, adding into a KOH solution with the concentration of 3wt% for removing hemicellulose, washing with deionized water at the treatment temperature of 90 ℃ in KOH to obtain cellulose residues, adding the cellulose residues into a hydrochloric acid solution with the concentration of 1wt%, and removing acid after 2h of treatment at the temperature of 70 ℃ to obtain the loofah sponge pure cellulose;
s2, crushing the loofah sponge into 50 meshes, and then adding the 50 meshes into a KOH solution to remove lipid impurities on the surface to obtain loofah sponge powder;
s3, carrying out high-temperature instantaneous carbonization on the pollen treated and removing the surface allergen, mixing the loofah sponge powder prepared in the step S2 with pollen microspheres for 1S at the temperature of 400 ℃, positioning the loofah sponge powder at the middle tail end of an air supply system, positioning the pollen microspheres at an air supply port, and mixing pollen particles with the loofah sponge powder along with the flow of air, so that the pollen microsphere particles can fully enter a net structure of the loofah sponge powder to form composite particles;
s4, adding the luffa pure cellulose prepared in the step S1 into water, wherein the concentration of the luffa pure cellulose in the water is 2wt%, carrying out ultrasonic treatment with the power of 500W, carrying out ultrasonic treatment for 20min, treating for 2S, stopping 2S, repeating the steps, and adding the luffa brandy powder prepared in the step S3 into the solution to obtain a luffa cellulose colloid solution;
s5, smearing a loofah sponge cellulose colloid solution on the surface of the reticular layer, then freeze-drying the fabric, and freeze-drying for 40 hours at the temperature of-40 ℃ under the condition of 20uPa to obtain the loofah sponge composite fabric with the reticular porous surface with the air layer thickness of 2 mm;
s6, coating the surface of the loofah sponge composite fabric, which is far away from the reticular layer, so as to obtain the multi-layer composite fabric for eliminating the seepage of the odor spinning.
Example 3
The preparation method of the anti-seepage multilayer composite fabric capable of actively eliminating the odor of the old comprises the following steps of:
s1, crushing loofah, adding the crushed loofah into a Soxhlet extractor for extraction, adding the extracted substance into a sodium chlorite solution with the concentration of 0.8wt%, regulating the solution to be acidic, heating to 70 ℃ for 1h, removing lignin, washing, adding into a KOH solution with the concentration of 1.8wt% for removing hemicellulose, washing with deionized water at the treatment temperature of 80 ℃ in KOH to obtain cellulose residues, adding the cellulose residues into a hydrochloric acid solution with the concentration of 1.6wt%, and treating at the temperature of 70 ℃ for 2h to remove acid to obtain the loofah sponge pure cellulose;
s2, crushing the loofah sponge into 40 meshes, and then adding the crushed loofah sponge into a KOH solution to remove lipid impurities on the surface of the loofah sponge to obtain loofah sponge powder;
s3, carrying out high-temperature instantaneous carbonization on the pollen treated to remove the surface allergen, mixing the loofah sponge powder prepared in the step S2 with pollen microspheres at the temperature of 350 ℃ for 2 seconds, positioning the loofah sponge powder at the middle tail end of an air supply system, positioning the pollen microspheres at an air supply port, and mixing pollen particles with the loofah sponge powder along with the flow of air, so that the pollen microspheres can fully enter a net structure of the loofah sponge powder to form composite particles;
s4, adding the loofah sponge pure cellulose prepared in the step S1 into water, wherein the concentration of the loofah sponge pure cellulose in the water is 1.2wt%, performing ultrasonic treatment with the power of 300W, the ultrasonic time is 24min, treating for 1S, stopping for 1S, repeating the steps, and adding the loofah sponge baking powder prepared in the step S3 into the solution to obtain a loofah sponge cellulose colloid solution;
s5, smearing a loofah sponge cellulose colloid solution on the surface of the reticular layer, then freeze-drying the fabric, and freeze-drying for 25 hours at-50-40 ℃ under the condition of 20uPa to obtain the loofah sponge composite fabric with the reticular porous surface and the air layer thickness of 0.8 mm;
s6, coating the surface of the loofah sponge composite fabric, which is far away from the reticular layer, so as to obtain the multi-layer composite fabric for eliminating the seepage of the odor spinning.
Example 4
The preparation method of the anti-seepage multilayer composite fabric capable of actively eliminating the odor of the old comprises the following steps of:
s1, crushing loofah, adding the crushed loofah into a Soxhlet extractor for extraction, adding the extracted substance into a sodium chlorite solution with the concentration of 1.2wt%, adjusting the solution to be acidic, heating to 80 ℃ for 0.5h, removing lignin, washing, adding into a KOH solution with the concentration of 2.5wt% for removing hemicellulose, washing with deionized water at the treatment temperature of 90 ℃ to obtain cellulose residues, adding the cellulose residues into a hydrochloric acid solution with the concentration of 1.2wt%, and removing acid after the treatment at the temperature of 80 ℃ for 1h to obtain the loofah sponge pure cellulose;
s2, crushing the loofah sponge into 50 meshes, and then adding the 50 meshes into a KOH solution to remove lipid impurities on the surface to obtain loofah sponge powder;
s3, carrying out high-temperature instantaneous carbonization on the pollen treated and removing the surface allergen, mixing the loofah sponge powder prepared in the step S2 with pollen microspheres for 1S at the temperature of 400 ℃, positioning the loofah sponge powder at the middle tail end of an air supply system, positioning the pollen microspheres at an air supply port, and mixing pollen particles with the loofah sponge powder along with the flow of air, so that the pollen microsphere particles can fully enter a net structure of the loofah sponge powder to form composite particles;
s4, adding the loofah sponge pure cellulose prepared in the step S1 into water, wherein the concentration of the loofah sponge pure cellulose in the water is 1.7wt%, performing ultrasonic treatment with the power of 400W and the ultrasonic time of 28min, treating for 1S, stopping for 1S, repeating the steps, and adding the loofah sponge baking powder prepared in the step S3 into the solution to obtain a loofah sponge cellulose colloid solution;
s5, smearing a loofah sponge cellulose colloid solution on the surface of the reticular layer, then freeze-drying the fabric, and freeze-drying for 32 hours at-50-40 ℃ under the condition of 20uPa to obtain the loofah sponge composite fabric with the reticular porous surface and the air layer thickness of 1.8 mm;
s6, coating the surface of the loofah sponge composite fabric, which is far away from the reticular layer, so as to obtain the multi-layer composite fabric for eliminating the seepage of the odor spinning.
Example 5
The preparation method of the anti-seepage multilayer composite fabric capable of actively eliminating the odor of the old comprises the following steps of:
s1, crushing loofah, adding the crushed loofah into a Soxhlet extractor for extraction, adding the extracted substance into a sodium chlorite solution with the concentration of 1.0wt%, adjusting the solution to be acidic, heating to 75 ℃ for 0.8h, removing lignin, washing, adding into a KOH solution with the concentration of 2.2wt% for removing hemicellulose, washing with deionized water at the treatment temperature of 85 ℃ to obtain cellulose residues, adding the cellulose residues into a hydrochloric acid solution with the concentration of 1.4wt%, treating at the temperature of 75 ℃ for 1.6h, and removing acid to obtain the loofah sponge pure cellulose;
s2, crushing the loofah sponge into 45 meshes, and then adding the crushed loofah sponge into a KOH solution to remove lipid impurities on the surface of the loofah sponge to obtain loofah sponge powder;
s3, carrying out high-temperature instantaneous carbonization on the pollen treated to remove the surface allergen, mixing the loofah sponge powder prepared in the step S2 with pollen microspheres for 1S at the temperature of 380 ℃, positioning the loofah sponge powder at the middle tail end of an air supply system, positioning the pollen microspheres at an air supply port, and mixing pollen particles with the loofah sponge powder along with the flow of air, so that the pollen microsphere particles can fully enter a network structure of the loofah sponge powder to form composite particles;
s4, adding the loofah sponge pure cellulose prepared in the step S1 into water, wherein the concentration of the loofah sponge pure cellulose in the water is 1.5wt%, performing ultrasonic treatment with the power of 300W, the ultrasonic time is 25min, treating for 2S, stopping for 2S, repeating the steps, and adding the loofah sponge baking powder prepared in the step S3 into the solution to obtain a loofah sponge cellulose colloid solution;
s5, smearing a loofah sponge cellulose colloid solution on the surface of the reticular layer, then freeze-drying the fabric, and freeze-drying for 30 hours at the temperature of-45 ℃ and the pressure of 20uPa to obtain the loofah sponge composite fabric with reticular porous surface and air layer thickness of 1.4 mm;
s6, coating the surface of the loofah sponge composite fabric, which is far away from the reticular layer, so as to obtain the multi-layer composite fabric for eliminating the seepage of the odor spinning.
Comparative example 1
The preparation method of the anti-seepage multilayer composite fabric capable of actively eliminating the odor of the old comprises the following steps of:
s1, crushing loofah, adding the crushed loofah into a Soxhlet extractor for extraction, adding the extracted substance into a sodium chlorite solution with the concentration of 1.0wt%, adjusting the solution to be acidic, heating to 75 ℃ for 0.8h, removing lignin, washing, adding into a KOH solution with the concentration of 2.2wt% for removing hemicellulose, washing with deionized water at the treatment temperature of 85 ℃ to obtain cellulose residues, adding the cellulose residues into a hydrochloric acid solution with the concentration of 1.4wt%, treating at the temperature of 75 ℃ for 1.6h, and removing acid to obtain the loofah sponge pure cellulose;
s2, crushing the loofah sponge into 45 meshes, and then adding the crushed loofah sponge into a KOH solution to remove lipid impurities on the surface of the loofah sponge to obtain loofah sponge powder;
s3, adding the loofah sponge pure cellulose prepared in the step S1 into water, wherein the concentration of the loofah sponge pure cellulose in the water is 1.5wt%, performing ultrasonic treatment with the power of 300W, the ultrasonic time is 25min, treating for 2S, stopping for 2S, repeating the steps, and adding the loofah sponge baking powder prepared in the step S2 into the solution to obtain a loofah sponge cellulose colloid solution;
s4, smearing a loofah sponge cellulose colloid solution on the surface of the reticular layer, then freeze-drying the fabric, and freeze-drying for 30 hours at the temperature of-45 ℃ and the pressure of 20uPa to obtain the loofah sponge composite fabric with reticular porous surface and air layer thickness of 1.4 mm;
s5, coating the surface of the loofah sponge composite fabric, which is far away from the reticular layer, so as to obtain the multi-layer composite fabric for eliminating the seepage of the odor spinning.
Comparative example 2
The preparation method of the anti-seepage multilayer composite fabric capable of actively eliminating the odor of the old comprises the following steps of:
s1, crushing loofah, adding the crushed loofah into a Soxhlet extractor for extraction, adding the extracted substance into a sodium chlorite solution with the concentration of 1.0wt%, adjusting the solution to be acidic, heating to 75 ℃ for 0.8h, removing lignin, washing, adding into a KOH solution with the concentration of 2.2wt% for removing hemicellulose, washing with deionized water at the treatment temperature of 85 ℃ to obtain cellulose residues, adding the cellulose residues into a hydrochloric acid solution with the concentration of 1.4wt%, treating at the temperature of 75 ℃ for 1.6h, and removing acid to obtain the loofah sponge pure cellulose;
s2, treating pollen, removing the surface allergen, and performing high-temperature instantaneous carbonization at 380 ℃ for 1s to obtain pollen microspheres;
s3, adding the luffa pure cellulose prepared in the step S1 into water, wherein the concentration of the luffa pure cellulose in the water is 1.5wt%, performing ultrasonic treatment with the power of 300W, the ultrasonic time is 25min, treating for 2S, stopping for 2S, repeating the steps, and then adding the pollen microsphere prepared in the step S2 into the solution to obtain a luffa cellulose colloid solution;
s4, smearing a loofah sponge cellulose colloid solution on the surface of the reticular layer, then freeze-drying the fabric, and freeze-drying for 30 hours at the temperature of-45 ℃ and the pressure of 20uPa to obtain the loofah sponge composite fabric with reticular porous surface and air layer thickness of 1.4 mm;
s5, coating the surface of the loofah sponge composite fabric, which is far away from the reticular layer, so as to obtain the multi-layer composite fabric for eliminating the seepage of the odor spinning. And (3) collecting a sample: the test subjects aged 70 years were invited to wash their hands with a tasteless soap, after 1 hour the hands were filled with the bags of the fabrics of examples 1-5 and comparative examples 1-2 and the fabrics were held in their palms. After the sampling is finished, the fabrics are filled into sample bottles by using odorless tweezers to be measured.
Sample treatment: aging the extraction film according to the aging requirement of the DVB/CAR/PDMS50/30 micron extraction head at the sample inlet of the gas chromatograph, inserting the extraction head into the sample bottle through the spacer of the sample bottle, pushing out the extraction film, carrying out headspace extraction for 10 minutes at the constant temperature of 40 ℃, then withdrawing the extraction film, pulling out the extraction head from the sample bottle, inserting the extraction film into the sample inlet of the gas chromatograph, pushing out the extraction film, withdrawing the extraction film after resolving for 6 minutes at the temperature of 250 ℃ without splitting, and pulling out the extraction head.
Table 1 net increment of total chromatographic peak area before and after hand odor adsorption of fabric
| Net increment of total area of chromatographic peak (counts) | |
| Example 1 | 1185693±1215 |
| Example 2 | 1408911±1258 |
| Example 3 | 1351659±1052 |
| Example 4 | 1452354±1154 |
| Example 5 | 1525614±1185 |
| Comparative example 1 | 482119±1214 |
| Comparative example 2 | 754896±1048 |
Note that: the blank is a fabric using only a mesh layer, and the net increase in total area of the chromatographic peaks is the difference between examples 1-5 and comparative examples 1-2 and the blank.
As can be seen from the experimental results in Table 1, examples 1 to 5 have strong adsorption and release ability to human body odor. This is because the multi-stage pore structure provides more adsorption surface area, and therefore both adsorption and odor release surface areas are greater than those of the adsorption fabric of the comparative example.
The above embodiments are merely illustrative of the principles of the present invention and its effectiveness, and are not intended to limit the invention. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the invention. Accordingly, it is intended that all equivalent modifications and variations of the invention be covered by the claims, which are within the ordinary skill of the art, be within the spirit and scope of the present disclosure.
Claims (7)
1. Anti-seepage multilayer composite fabric capable of actively eliminating old people tasteThe fabric is characterized by comprising a coating layer, an air layer and a netlike layer, wherein the air layer is positioned between the coating layer and the netlike layer, the coating layer is a waterproof coating containing nanopores, the air layer is a loofah sponge composite cellulose sponge, the netlike layer is a netlike knitted fabric, and the average area of the netlike holes of the netlike knitted fabric is larger than 0.1cm 2 ；
The preparation method of the anti-seepage multilayer composite fabric capable of actively eliminating the odor of the old comprises the following steps of:
s1, crushing loofah, adding the crushed loofah into a Soxhlet extractor for extraction, adding the extracted substance into a sodium chlorite solution, regulating the solution to be acidic, heating to remove lignin, washing, adding the washed solution into a KOH solution to remove hemicellulose, washing with deionized water to obtain cellulose residues, adding the cellulose residues into a hydrochloric acid solution, treating at a certain temperature, and removing acid to obtain the loofah pure cellulose;
s2, crushing the loofah sponge into 20-50 meshes, and then adding the crushed loofah sponge into a KOH solution to remove lipid impurities on the surface of the loofah sponge to obtain loofah sponge powder;
s3, mixing the loofah sponge powder prepared in the step S2 with the pollen microspheres, so that the pollen microsphere particles can fully enter a net structure of the loofah sponge powder to form composite particles;
s4, adding the luffa pure cellulose prepared in the step S1 into water, performing ultrasonic treatment, and then adding the composite particles prepared in the step S3 into the solution to obtain a luffa cellulose colloid solution;
s5, smearing a loofah sponge cellulose colloid solution on the surface of the reticular layer, and then carrying out freeze-drying treatment on the fabric to obtain a loofah sponge composite fabric with reticular porous surfaces;
s6, coating the surface of the loofah sponge composite fabric far away from the reticular layer to obtain the multi-layer composite fabric with the odor-eliminating spinning leakage.
2. The multi-layer, anti-leakage, active-elimination, fabric according to claim 1, characterized in that: the concentration of the sodium chlorite solution in the step S1 is 0.5-1.5wt%, the temperature for removing lignin by heating reaction is 70-80 ℃, the time is 0.5-1h, the concentration of the KOH solution is 1.5-3wt%, the treatment temperature in KOH is 80-90 ℃, the temperature for adding cellulose residues into the hydrochloric acid solution is 70-80 ℃, the time is 1-2h, and the concentration of hydrochloric acid is 1-2wt%.
3. The multi-layer, anti-leakage, active-elimination, fabric according to claim 1, characterized in that: and (3) washing the pollen microspheres in the step (S3), and carbonizing the surfaces at high temperature instantly to obtain the modified pollen microspheres.
4. The multi-layer, anti-leakage, composite fabric for actively eliminating the odor of the elderly according to claim 3, wherein: in the step S3, the loofah sponge powder and the pollen microspheres are mixed in such a way that the loofah sponge powder is positioned at the middle end of the air supply system, the pollen microspheres are positioned at the air supply port, and along with the air flow, the pollen particles and the loofah sponge powder are mixed.
5. The multi-layer, anti-leakage, active-elimination, fabric according to claim 1, characterized in that: in the step S4, the concentration of the luffa pure cellulose in water is 1-2wt%, the power of ultrasonic treatment is 200-500W, and the ultrasonic time is 20-30min.
6. The multi-layer, anti-leakage, active-elimination, fabric according to claim 1, characterized in that: and in the step S5, freeze drying is carried out for 20-40 hours under the conditions of minus 50 to minus 40 ℃ and 20 uPa.
7. The multi-layer, anti-leakage, active-elimination, fabric according to claim 1, characterized in that: the thickness of the air layer is 0.4-2mm. .
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| CN109468872A (en) * | 2018-12-13 | 2019-03-15 | 赵文静 | The method that separation luffa cellulose is extracted using choline eutectic solvent |
| CN109610214A (en) * | 2018-12-13 | 2019-04-12 | 赵文静 | The preparation method of loofah fiber element |
| CN110437494A (en) * | 2019-07-22 | 2019-11-12 | 陕西师范大学 | A kind of preparation method of super hydrophilic super oleophylic luffa sponge |
| CN112316195A (en) * | 2020-10-30 | 2021-02-05 | 苏州度博迈医疗科技有限公司 | Preparation method of loofah sponge antibacterial dressing |
| CN112553910A (en) * | 2020-11-30 | 2021-03-26 | 苏州市新桃纺织有限公司 | High-breathability polyamide-polyester fabric and preparation method thereof |
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| CN109468872A (en) * | 2018-12-13 | 2019-03-15 | 赵文静 | The method that separation luffa cellulose is extracted using choline eutectic solvent |
| CN109610214A (en) * | 2018-12-13 | 2019-04-12 | 赵文静 | The preparation method of loofah fiber element |
| CN110437494A (en) * | 2019-07-22 | 2019-11-12 | 陕西师范大学 | A kind of preparation method of super hydrophilic super oleophylic luffa sponge |
| CN112316195A (en) * | 2020-10-30 | 2021-02-05 | 苏州度博迈医疗科技有限公司 | Preparation method of loofah sponge antibacterial dressing |
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