CN111793897A - Artemisia argyi extract modified PP spun-bonded non-woven fabric and preparation method thereof - Google Patents
Artemisia argyi extract modified PP spun-bonded non-woven fabric and preparation method thereof Download PDFInfo
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/54—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving
- D04H1/542—Adhesive fibres
- D04H1/544—Olefin series
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/08—Melt spinning methods
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F1/00—General methods for the manufacture of artificial filaments or the like
- D01F1/02—Addition of substances to the spinning solution or to the melt
- D01F1/10—Other agents for modifying properties
- D01F1/103—Agents inhibiting growth of microorganisms
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
- D01F6/44—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds as major constituent with other polymers or low-molecular-weight compounds
- D01F6/46—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds as major constituent with other polymers or low-molecular-weight compounds of polyolefins
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
- D04H3/005—Synthetic yarns or filaments
- D04H3/007—Addition polymers
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
- D04H3/08—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
- D04H3/14—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic yarns or filaments produced by welding
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2401/00—Physical properties
- D10B2401/02—Moisture-responsive characteristics
- D10B2401/022—Moisture-responsive characteristics hydrophylic
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2401/00—Physical properties
- D10B2401/13—Physical properties anti-allergenic or anti-bacterial
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
- Nonwoven Fabrics (AREA)
- Chemical Or Physical Treatment Of Fibers (AREA)
Abstract
The invention relates to a wormwood extract modified PP (polypropylene) spunbonded non-woven fabric, which comprises an effective component of wormwood extract in a mass percentage of 0.1-5%. According to the invention, the wormwood extract and the porous nano material are subjected to modification treatment, and the wormwood extract is 'packaged' in the pore canal of the porous material due to the large specific surface area of the nano porous material, so that the components of the wormwood extract cannot be damaged when the non-woven fabric is prepared later, and the performance of the non-woven fabric is improved; the mechanical strength, the wear resistance and the moisture absorption of the non-woven fabric are further effectively improved by adding soluble chitin, 2-hydroxybenzimidazole, cellulose acetate butyrate, adipic dihydrazide, N-hydroxysuccinimide and polyamine; the modified nano composite material is added with a fat-soluble solvent for grinding, can be uniformly dispersed, is mixed with PP slices and is subjected to spinning to obtain the modified PP spun-bonded non-woven fabric, and the softness, air permeability and water absorption of the non-woven fabric can be improved.
Description
Technical Field
The invention belongs to the technical field of spinning, and particularly relates to a wormwood extract modified PP (polypropylene) spun-bonded non-woven fabric and a preparation method thereof.
Background
The PP spunbonded non-woven fabric is a breathable but non-permeable fiber structure formed by using a polypropylene raw material and being spun, carded and bonded into a net through equipment at a high temperature, has the characteristics of moisture resistance, breathability, flexibility, light weight, no combustion supporting, easy decomposition, no toxicity or irritation, rich colors, low price, recycling and the like, and is mainly used for disposable medical and sanitary products, disposable antifouling clothes, agricultural cloth, cloth for furniture, lining materials and the like.
Mugwort is a perennial herb, and is used as a medicine with leaves, has warm property, bitter taste, no toxicity, pure yang property, twelve meridian dredging, yang restoring, qi and blood regulating, dampness and cold expelling, bleeding stopping, miscarriage preventing and other effects, and is also commonly used for acupuncture. The moxa has the function of releasing negative ions, for example, the additive capable of releasing negative ions and the moxa are selected and ground into nanoscale powder, and the powder is mixed into the fiber to prepare the moxa fiber, so that the fiber not only has the advantages of the moxa, but also has the function of specifically releasing negative ions, and the fabric prepared from the fiber not only has the functions of health care, health preservation and medicine of the moxa, but also can release negative ions, emit far infrared rays, sterilize, disinfect and remove odor, can fully utilize the good health care function of the moxa fiber, and can be widely applied to the fields of textiles, clothing and health care products.
The existing method adds specific raw materials into the preparation of the non-woven fabric to modify the non-woven fabric, but the existing method destroys the components of the modified substances, reduces the performance of the non-woven fabric, and has the problems that the fibrous non-woven fabric is easy to mildew, has low softness, is easy to retract after hot rolling, has poor air permeability and the like.
The present invention has been made in view of the above circumstances.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides the wormwood extract modified PP spunbonded non-woven fabric and the preparation method thereof.
The invention provides a moxa extract modified PP (polypropylene) spunbonded non-woven fabric, which comprises a moxa extract.
Further, the mass percent of the wormwood extract is 0.1-5%.
Furthermore, the folium artemisiae argyi extract is loose in appearance powder, free of agglomeration, brown yellow in color and uniform; the content of active ingredients is more than or equal to 98 percent, the water content is less than or equal to 5 percent, the total number of colonies is less than 99cfu/g, salmonella and escherichia coli can not be detected, the shelf life is 18 months, and the wormwood extract adopts commercially available raw materials.
The moxa specifically releases the function of negative ions, for example, the additive capable of releasing negative ions and the moxa are selected and ground into nanoscale powder, and the powder is mixed into the fiber to prepare the moxa fiber, so that the fiber has the advantages of the moxa and the function of specifically releasing negative ions, and the fabric prepared from the fiber has the functions of health care, health preservation and medicine of the moxa, can release negative ions, emit far infrared rays, sterilize, disinfect and remove odor, and can fully utilize the good health care function of the moxa fiber.
Further, the wormwood extract is subjected to modification treatment, and the modification method comprises the following steps:
(1) adding the modified substance into water, stirring until the modified substance is completely dissolved, adding the porous nano material, uniformly stirring, and drying to obtain a porous nano material wrap;
(2) adding soluble chitin, 2-hydroxybenzimidazole, cellulose acetate butyrate, adipic dihydrazide, N-hydroxysuccinimide and polyamine into the porous nano material wrapping object, uniformly stirring, and simultaneously heating at low temperature to obtain a modified nano composite material; wherein the modified substance is a modified mugwort extract.
According to the invention, the wormwood extract and the porous nano material are subjected to modification treatment, and the wormwood extract is 'packaged' in the pore canal of the porous material due to the large specific surface area of the nano porous material, so that the components of the wormwood extract cannot be damaged when the non-woven fabric is prepared later, and the performance of the non-woven fabric is improved; the soluble chitin, 2-hydroxybenzimidazole, cellulose acetate butyrate, adipic dihydrazide, N-hydroxysuccinimide and polyamine are added to interact with the porous nano-material wrapping object prepared from the wormwood, so that the mechanical strength, wear resistance and hygroscopicity of the non-woven fabric are further effectively improved.
Further, in the step (1), the mass ratio of the modifying substance to the water is 1: 5-10.
Further, in the step (1), the modifying substance is added into water and stirred until the modifying substance is completely dissolved, and the heating is needed to be carried out to 50-80 ℃, wherein the bath ratio is 1: 5-10.
Further, in the step (1), the porous nano material is montmorillonite, zeolite powder, aerogel or porous nano TiO2Microsphere, porous nano SiO2One or more of microspheres.
Further, in the step (1), the mass ratio of the modified substance to the porous nano material is 1: 5-10.
Further, in the step (1), the stirring speed is 30-60r/min after the porous nano material is added, and the stirring time is 30-120 min.
Further, in the step (2), the mass ratio of the porous nanomaterial wrap, the 2-hydroxybenzimidazole, the cellulose acetate butyrate, the adipic acid dihydrazide, the N-hydroxysuccinimide and the polyamine is 10-50:2:1:0.5:1.5:1.5: 0.5; the low-temperature heating temperature is 50-60 ℃, and the low-temperature heating time is 30-60 min; the stirring speed is 30-60r/min, and the stirring time is 30-120 min.
The second purpose of the invention is to provide a preparation method of a wormwood extract modified PP spunbonded non-woven fabric, which comprises the following steps:
(S1) preparation of composite modifier: adding a fat-soluble solvent into the modified nano composite material for grinding to obtain a composite modifier;
(S2) preparation of modified PP spunbonded nonwoven: and (2) melting and mixing PP slices in a double-screw extruder, adding the composite modifier for mixing, spinning and drawing to obtain a fiber web, and carrying out hot rolling on the fiber web on a hot rolling mill to obtain the modified PP spunbonded non-woven fabric.
Further, the fat-soluble solvent in the step (1) is wax, higher fatty glyceride or stearic acid.
Further, the grinding particle size in the step (1) is 8000-10000 meshes.
Further, the mass ratio of the composite modifier to the PP slices in the step (2) is 1-8: 100.
Compared with the prior art, the invention has the following beneficial effects:
(1) the modified PP spunbonded non-woven fabric is added with the wormwood extract, so that the wormwood extract has the functions of releasing anions and health care, health preservation and medicine, can release anions, emit far infrared rays, sterilize, disinfect and remove odor, and also has the good health care function of wormwood fibers. According to the invention, the wormwood extract and the porous nano material are subjected to modification treatment, and the nano porous material has a larger specific surface area, so that the wormwood extract is 'packaged' in a pore channel of the porous material, and thus, the components of the wormwood extract cannot be damaged when the non-woven fabric is prepared later, and the performance of the non-woven fabric is improved; the added soluble chitin, 2-hydroxybenzimidazole, cellulose acetate butyrate, adipic dihydrazide, N-hydroxysuccinimide and polyamine interact with the porous nano-material wrapping object prepared from the wormwood, so that the mechanical strength, the antibacterial property, the wear resistance and the hygroscopicity of the non-woven fabric are further effectively improved.
(2) The modified nano composite material is added with a fat-soluble solvent for grinding, can be uniformly dispersed, is mixed with PP slices and is subjected to spinning to obtain the modified PP spun-bonded non-woven fabric, and the softness, air permeability and water absorbability of the non-woven fabric can be further improved.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.
The wormwood extracts described in the following examples and comparative examples are loose powder in appearance, free of caking, brown-yellow in color, and uniform and consistent; the content of active ingredients is more than or equal to 98 percent, the water content is less than or equal to 5 percent, the total number of colonies is less than 99cfu/g, salmonella and escherichia coli can not be detected, and the shelf life is 18 months.
Example 1
According to the mugwort extract modified PP spunbonded nonwoven fabric, the mass percentage of the mugwort extract is 0.1%, and the mugwort extract is modified as follows:
(1) adding folium Artemisiae Argyi extract into water, stirring to dissolve completely, heating water to 50 deg.C, with a bath ratio of 1:5, the mass ratio of folium Artemisiae Argyi extract to water being 1:5, adding zeolite powder with a mass ratio of 1:5, stirring at 30r/min for 120min, and drying to obtain porous nanomaterial wrap;
(2) adding soluble chitin, 2-hydroxybenzimidazole, cellulose acetate butyrate, adipic dihydrazide, N-hydroxysuccinimide and polyamine into the porous nano material wrapping object, wherein the mass ratio of the soluble chitin to the 2-hydroxybenzimidazole to the cellulose acetate butyrate to the adipic dihydrazide to the N-hydroxysuccinimide to the polyamine is 10:2:1:0.5:1.5: 0.5, stirring for 120min at 30r/min, and simultaneously heating for 60min at a low temperature of 50 ℃ to obtain the modified nano composite material.
The preparation method of the wormwood extract modified PP spunbonded nonwoven fabric comprises the following steps:
(S1) preparation of composite modifier: adding a proper amount of higher fatty glyceride into the modified nano composite material for grinding, wherein the grinding particle size is 8000 meshes, so as to obtain a composite modifier;
(S2) preparation of modified PP spunbonded nonwoven: and melting and mixing PP slices in a double-screw extruder, adding the composite modifier, injecting the mixture into the double-screw extruder, mixing the mixture with PP slice melt, wherein the mass ratio of the composite modifier to the PP slices is 1:100, carrying out spinning and traction to obtain a fiber web, and carrying out hot rolling on the fiber web on a hot rolling mill to obtain the wormwood extract modified PP spunbonded non-woven fabric.
Example 2
According to the mugwort extract modified PP spunbonded nonwoven fabric, the mass percentage of the mugwort extract is 2.5%, and the mugwort extract is modified as follows:
(1) adding folium Artemisiae Argyi extract into water, stirring to dissolve completely, heating water to 65 deg.C at bath ratio of 1:8, adding porous nanometer SiO2Microspheres, wormwood extract and porous nano SiO2Stirring the microspheres at a mass ratio of 1:7.5 at 45r/min for 75min, and drying to obtain a porous nano material wrap;
(2) adding soluble chitin, 2-hydroxybenzimidazole, cellulose acetate butyrate, adipic dihydrazide, N-hydroxysuccinimide and polyamine into the porous nano material wrapping object, wherein the mass ratio of the soluble chitin to the 2-hydroxybenzimidazole to the cellulose acetate butyrate to the adipic dihydrazide to the N-hydroxysuccinimide to the polyamine is 50:2:1:0.5:1.5: 0.5, stirring for 30min at 60r/min, and simultaneously heating for 30min at low temperature of 60 ℃ to obtain the modified nano composite material.
The preparation method of the wormwood extract modified PP spunbonded nonwoven fabric comprises the following steps:
(S1) preparation of composite modifier: adding a proper amount of stearic acid into the modified nano composite material for grinding, wherein the grinding particle size is 9000 meshes, so as to obtain a composite modifier;
(S2) preparation of modified PP spunbonded nonwoven: and melting and mixing PP slices in a double-screw extruder, adding the composite modifier, injecting the mixture into the double-screw extruder, mixing the mixture with PP slice melt, wherein the mass ratio of the composite modifier to the PP slices is 4.5:100, carrying out spinning and traction to obtain a fiber web, and carrying out hot rolling on the fiber web on a hot rolling mill to obtain the wormwood extract modified PP spunbonded non-woven fabric.
Example 3
In the wormwood extract modified PP spunbonded nonwoven fabric of the embodiment, the weight percentage of the wormwood extract is 5%, and the wormwood extract is modified as follows:
(1) adding folium Artemisiae Argyi extract into water, stirring to dissolve completely, heating water to 80 deg.C at bath ratio of 1:10, adding montmorillonite and porous nanometer SiO at a mass ratio of 1:102Microspheres, wormwood extract, montmorillonite and porous nano SiO2The total mass ratio of the microspheres is 1:10, and the montmorillonite and the porous nano SiO are2Stirring the microspheres for 30min at a mass ratio of 1:1 and 60r/min, and drying to obtain a porous nano material wrap;
(2) adding soluble chitin, 2-hydroxybenzimidazole, cellulose acetate butyrate, adipic dihydrazide, N-hydroxysuccinimide and polyamine into the porous nano material wrapping object, wherein the mass ratio of the soluble chitin to the 2-hydroxybenzimidazole to the cellulose acetate butyrate to the adipic dihydrazide to the N-hydroxysuccinimide to the polyamine is 30:2:1:0.5:1.5: 0.5, stirring for 75min at a speed of 45r/min, and simultaneously heating for 45min at a low temperature of 55 ℃ to obtain the modified nano composite material.
The preparation method of the wormwood extract modified PP spunbonded nonwoven fabric comprises the following steps:
(S1) preparation of composite modifier: adding a proper amount of higher fatty glyceride into the modified nano composite material for grinding, wherein the grinding particle size is 10000 meshes, so as to obtain a composite modifier;
(S2) preparation of modified PP spunbonded nonwoven: and melting and mixing PP slices in a double-screw extruder, adding the composite modifier, injecting the mixture into the double-screw extruder, mixing the mixture with PP slice melt, wherein the mass ratio of the composite modifier to the PP slices is 8:100, carrying out spinning and traction to obtain a fiber web, and carrying out hot rolling on the fiber web on a hot rolling mill to obtain the wormwood extract modified PP spunbonded non-woven fabric.
Comparative example 1
The preparation method of the wormwood extract modified PP spunbonded nonwoven fabric prepared in the comparative example is the same as that of example 1, except that the wormwood extract is not subjected to modification treatment.
Comparative example 2
The preparation method of the wormwood extract modified PP spun-bonded non-woven fabric prepared in the comparative example is the same as that in example 1, except that the modified nano composite material is directly ground without adding a fat-soluble solvent.
Comparative example 3
The preparation method of the wormwood extract modified PP spunbonded non-woven fabric prepared in the comparative example is the same as that of the example 1, except that the composite modifier is not prepared, and PP slices and the modified nano composite material are directly subjected to melt mixing to prepare the non-woven fabric.
Comparative example 4
The preparation method of the wormwood extract modified PP spun-bonded non-woven fabric prepared in the comparative example is the same as that of example 1, except that 2-hydroxybenzimidazole is not added into the porous nanomaterial wrap in the wormwood extract modification method.
Comparative example 5
The preparation method of the wormwood extract modified PP spun-bonded non-woven fabric prepared in the comparative example is the same as that of the example 1, except that cellulose acetate butyrate is not added into the porous nano material wrap in the wormwood extract modification method.
Comparative example 6
The preparation method of the wormwood extract modified PP spun-bonded non-woven fabric prepared by the comparative example is the same as that of the example 1, except that adipic acid dihydrazide is not added into the porous nano-material wrap in the wormwood extract modification method.
Comparative example 7
The preparation method of the wormwood extract modified PP spun-bonded non-woven fabric prepared in the comparative example is the same as that of example 1, except that N-hydroxysuccinimide is not added into the porous nanomaterial wrap in the wormwood extract modification method.
Comparative example 8
The preparation method of the wormwood extract modified PP spun-bonded non-woven fabric prepared in the comparative example is the same as that of the example 1, except that no polyamine is added into the porous nano material wrap in the wormwood extract modification method.
Comparative example 9
The preparation method of the wormwood extract modified PP spun-bonded non-woven fabric prepared in the comparative example is the same as that of the example 1, except that the soluble chitin is not added into the porous nano-material wrap in the wormwood extract modification method.
Test example 1
The bacteriostatic ratios of the nonwoven fabrics prepared in examples 1 to 3 and comparative examples 1 to 3 were measured, respectively, and the results are shown in table 1.
TABLE 1
As can be seen from table 1, the antibacterial activity of the non-woven fabric prepared without the modification treatment of the wormwood extract is significantly reduced, because the nano-porous material has a larger specific surface area during the modification treatment, and the wormwood extract is "encapsulated" in the pore channels of the porous material, so that the components of the wormwood extract are not damaged during the preparation of the non-woven fabric later, and the antibacterial performance of the non-woven fabric is improved. The non-woven fabric prepared without the treatment of the fat-soluble solvent and the preparation of the composite modifier has obviously reduced antibacterial performance, so that the non-woven fabric prepared by the method has uniform performance due to the result of uneven dispersion of the wormwood extract in the non-woven fabric, and the antibacterial rate of the non-woven fabric is in accordance with the standard requirement after being washed by water for 50 times.
The applicant has also carried out the above experiments on other examples, with substantially identical results, which are not listed any more due to the limited space.
Test example 2
The nonwoven fabrics prepared in examples 1 to 3 and comparative examples 1 to 9 were subjected to performance tests, respectively, and the results are shown in Table 2.
Water absorption: weight of water absorbed per unit area of modified PP spunbond nonwoven.
The softness test method comprises the following steps: INDA IST 90.3.
TABLE 2
| Group of | Air permeability (m)2·s) | Softness (g) | Water absorption (g) | Negative ion (per/cm)3) |
| Example 1 | 443 | 3.62 | 0.82 | 1.2×105 |
| Example 2 | 451 | 3.57 | 0.89 | 1.5×105 |
| Example 3 | 438 | 3.63 | 0.91 | 1.3×105 |
| Comparative example 1 | 286 | 2.03 | 0.19 | 1.3×103 |
| Comparative example 2 | 297 | 2.15 | 0.25 | 0.9×105 |
| Comparative example 3 | 278 | 1.98 | 0.22 | 0.8×105 |
| Comparative example 4 | 255 | 2.11 | 0.26 | 1.0×105 |
| Comparative example 5 | 263 | 1.94 | 0.23 | 1.0×105 |
| Comparative example 6 | 281 | 2.07 | 0.27 | 1.0×105 |
| Comparative example7 | 293 | 2.13 | 0.21 | 0.9×105 |
| Comparative example 8 | 268 | 2.06 | 0.19 | 1.1×105 |
| Comparative example 9 | 216 | 2.01 | 0.17 | 1.0×105 |
As can be seen from Table 2, the non-woven fabric prepared by the method of the invention has better softness, water absorption and air permeability, the wormwood extract is not modified, the wormwood extract is not treated by a fat-soluble solvent, a composite modifier is not prepared, the non-woven fabric prepared without adding soluble chitin, 2-hydroxybenzimidazole, cellulose acetate butyrate, adipic acid dihydrazide, N-hydroxysuccinimide or polyamine in the modification process has poorer performance and lower negative ion measured value.
The applicant has also carried out the above experiments on other examples, with substantially identical results, which are not listed any more due to the limited space.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (10)
1. The wormwood extract modified PP spunbonded non-woven fabric is characterized by comprising wormwood extract, and preferably, the wormwood extract accounts for 0.1-5% by mass of the modified PP spunbonded non-woven fabric.
2. The wormwood extract modified PP spunbonded nonwoven as claimed in claim 1, wherein the wormwood extract is modified by the following method:
(1) adding the modified substance into water, stirring until the modified substance is completely dissolved, adding the porous nano material, uniformly stirring, and drying to obtain a porous nano material wrap;
(2) adding soluble chitin, 2-hydroxybenzimidazole, cellulose acetate butyrate, adipic dihydrazide, N-hydroxysuccinimide and polyamine into the porous nano material wrapping object, uniformly stirring, and simultaneously heating at low temperature to obtain a modified nano composite material;
wherein the modified substance is a modified mugwort extract; the content of the active ingredients of the wormwood extract is more than or equal to 98 percent, the water content is less than or equal to 5 percent, and the total number of colonies is less than 99 cfu/g.
3. The wormwood extract modified PP spunbonded nonwoven fabric according to claim 2, wherein in the step (1), the mass ratio of the modified substance to water is 1: 5-10.
4. The wormwood extract modified PP spunbonded nonwoven fabric according to claim 2, wherein in the step (1), the modified substance is added into water and stirred until the modified substance is completely dissolved, and the heating is required to be carried out to 50-80 ℃, and the bath ratio is 1: 5-10.
5. The wormwood extract modified PP spunbonded non-woven fabric according to claim 2, wherein in the step (1), the porous nano material is montmorillonite, zeolite powder, aerogel or porous nano TiO2Microsphere, porous nano SiO2One or more of microspheres.
6. The wormwood extract modified PP spunbonded nonwoven fabric according to claim 2, wherein in the step (1), the mass ratio of the modified substance to the porous nano material is 1: 5-10; the stirring speed is 30-60r/min after the porous nano material is added, and the stirring time is 30-120 min.
7. The wormwood extract modified PP spun-bonded non-woven fabric according to claim 2, wherein in the step (2), the mass ratio of the porous nanomaterial wrap, the soluble chitin, the 2-hydroxybenzimidazole, the cellulose acetate butyrate, the adipic acid dihydrazide, the N-hydroxysuccinimide and the polyamine is 10-50:2:1:0.5:1.5:1.5: 0.5; the low-temperature heating temperature is 50-60 ℃, and the low-temperature heating time is 30-60 min; the stirring speed is 30-60r/min, and the stirring time is 30-120 min.
8. The preparation method of the wormwood extract modified PP spunbonded nonwoven fabric of any one of claims 1 to 7, characterized by comprising the following steps:
(S1) preparation of composite modifier: adding a fat-soluble solvent into the modified nano composite material for grinding to obtain a composite modifier;
(S2) preparation of modified PP spunbonded nonwoven: and (2) melting and mixing PP slices in a double-screw extruder, adding the composite modifier for mixing, spinning and drawing to obtain a fiber web, and carrying out hot rolling on the fiber web on a hot rolling mill to obtain the modified PP spunbonded non-woven fabric.
9. The method for preparing wormwood extract modified PP spunbonded nonwoven fabric according to claim 8, wherein the fat-soluble solvent in the step (S1) is wax, higher fatty glyceride or stearic acid.
10. The method as claimed in claim 8, wherein the grinding particle size in step (S1) is 8000-10000 mesh.
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