CN111685415A - High-efficiency antiviral protective mask produced by using modified PP (polypropylene) non-woven fabric - Google Patents
High-efficiency antiviral protective mask produced by using modified PP (polypropylene) non-woven fabric Download PDFInfo
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- CN111685415A CN111685415A CN202010456757.7A CN202010456757A CN111685415A CN 111685415 A CN111685415 A CN 111685415A CN 202010456757 A CN202010456757 A CN 202010456757A CN 111685415 A CN111685415 A CN 111685415A
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- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D13/00—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
- A41D13/05—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches protecting only a particular body part
- A41D13/11—Protective face masks, e.g. for surgical use, or for use in foul atmospheres
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- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D13/00—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
- A41D13/05—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches protecting only a particular body part
- A41D13/11—Protective face masks, e.g. for surgical use, or for use in foul atmospheres
- A41D13/1161—Means for fastening to the user's head
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- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D31/00—Materials specially adapted for outerwear
- A41D31/04—Materials specially adapted for outerwear characterised by special function or use
-
- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D31/00—Materials specially adapted for outerwear
- A41D31/04—Materials specially adapted for outerwear characterised by special function or use
- A41D31/10—Impermeable to liquids, e.g. waterproof; Liquid-repellent
-
- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D31/00—Materials specially adapted for outerwear
- A41D31/04—Materials specially adapted for outerwear characterised by special function or use
- A41D31/12—Hygroscopic; Water retaining
- A41D31/125—Moisture handling or wicking function through layered materials
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- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D31/00—Materials specially adapted for outerwear
- A41D31/04—Materials specially adapted for outerwear characterised by special function or use
- A41D31/26—Electrically protective, e.g. preventing static electricity or electric shock
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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
- D01D5/06—Wet 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
- D01F1/09—Addition of substances to the spinning solution or to the melt for making electroconductive or anti-static filaments
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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
-
- 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
-
- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D2500/00—Materials for garments
- A41D2500/30—Non-woven
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Physical Education & Sports Medicine (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Nonwoven Fabrics (AREA)
- Artificial Filaments (AREA)
Abstract
The invention discloses a high-efficiency antiviral protective mask produced by utilizing modified PP non-woven fabric, which relates to the technical field of hygienic products, wherein polypropylene is used as a raw material, and good hydrophobic property is endowed to the manufactured spun-bonded non-woven fabric through grafting of vinyl tri (dimethylsiloxy) silane, so that liquid pollutants such as external spray and the like are prevented from entering the mask, and moisture enters a filtering intermediate layer to influence the protective effect of the mask; the invention also improves the antistatic property of the polypropylene by adding hexamethylol melamine hexa methyl ether during the processing of the spun-bonded process, solves the problem of accumulation and use of static electricity and plays a role in dust resistance.
Description
The technical field is as follows:
the invention relates to the technical field of hygienic products, in particular to a high-efficiency antiviral protective mask produced by utilizing modified PP non-woven fabric.
Background art:
the protective mask is a respiratory protection article aiming at preventing the transmission of some respiratory infectious microorganisms and protecting the health. The protective mask is divided into a daily protective mask and a medical protective mask, the daily protective mask is made of a filtering material, and a wearer overcomes the resistance of the filtering material to air flow by autonomous respiration, so the respirator is called as a self-absorption filtering respirator; the medical protective mask consists of a mask body and a tightening belt, wherein the mask body is divided into an inner layer, a middle layer and an outer layer, the inner layer is common sanitary gauze or non-woven fabric, the middle layer is a superfine polypropylene fiber melt-blown material layer, and the outer layer is a non-woven fabric or ultrathin polypropylene melt-blown material layer.
In order to enhance the protection effect of the mask, the existing protective mask generally adopts a multilayer structure. The PP material is an important material for processing the mask, the conventional PP material is modified based on the aim of further optimizing the protective effect of the mask, and the protective effect of the hydrophobic outer layer of the mask is optimized by preparing the novel hydrophobic modified PP material.
The invention content is as follows:
the invention aims to solve the technical problem of providing a high-efficiency antiviral protective mask produced by utilizing modified PP non-woven fabric, and the effect of the hydrophobic outer layer of the mask is optimized by preparing hydrophobic spunbonded non-woven fabric, so that liquid pollutants such as spray and the like are better prevented from entering the mask, and the protective performance of the filtering middle layer is ensured.
The technical problem to be solved by the invention is realized by adopting the following technical scheme:
utilize high-efficient antiviral protective facial mask of modified PP non-woven production, including gauze mask body and ear area, be equipped with the bridge of the nose strip in the gauze mask body, the gauze mask body comprises moisture absorption inlayer, filtration intermediate level and hydrophobic skin from inside to outside in proper order, hydrophobic skin adopts the hydrophobic type by modified PP aggregate through the spunbond process to make and spins the non-woven fabrics, the preparation method of modified PP aggregate is: dissolving vinyl tri (dimethylsiloxy) silane and an initiator in an organic solvent, adding the organic solvent and the initiator into a high-speed mixer, adding polypropylene into the high-speed mixer, uniformly mixing, feeding the obtained mixture into a double-screw extruder, and carrying out melt reaction to obtain the modified PP granules.
The mass ratio of the polypropylene to the vinyl tri (dimethylsiloxy) silane is 100: 5-30.
The initiator is dicumyl peroxide.
The organic solvent is selected from one of DMF, toluene and DMSO.
The temperature of each section from the feeding port to the machine head of the double-screw extruder is as follows: 190 ℃ at 160 ℃ at 170 ℃ at 200 ℃ at 170 ℃ at 180 ℃ at 210 ℃ at 180 ℃ at 170 ℃ at 200 ℃ at 170 ℃ at 250 r/min.
The method for processing the hydrophobic spunbonded nonwoven fabric by using the modified PP granules comprises the following processing steps:
(1) dissolving modified PP granules and hexamethylol melamine hexa methyl ether in DMF to prepare spinning stock solution, extruding the spinning stock solution through a spinning nozzle, entering a coagulating bath, then sequentially entering a preheating bath, a water washing tank and a stretching bath, oiling, drying, then reeling through a crimping machine, and carrying out steam heat setting to obtain hydrophobic modified PP fibers;
(2) and (3) laying the hydrophobic modified PP fiber on a net forming curtain through a swinging roller, and carrying out hot rolling, trimming and winding to obtain the hydrophobic spunbonded non-woven fabric.
The mass ratio of the modified PP granules to the hexamethylol melamine hexa-methyl ether is 100: 0.5-5.
The extrusion speed of the spinneret is 0.5-3m/min, and the stretching multiple is 3-8 times.
The temperature of the coagulating bath is 15-35 ℃, the temperature of the preheating bath is 60-80 ℃, the temperature of the stretching bath is 90-110 ℃, the stretching multiple is 1.1-1.5 times, and the steam pressure of the heat setting is 0.1-0.5 MPa.
The temperature of the hot smooth roller is 180-210 ℃, and the temperature of the blooming roller is 200-230 ℃.
The invention has the beneficial effects that: the invention takes polypropylene as raw material, and the good hydrophobic property is endowed to the manufactured spun-bonded non-woven fabric through the grafting of vinyl tri (dimethylsiloxane) silane, so as to prevent liquid pollutants such as external spray and the like from entering the mask and prevent the water from entering the filtering intermediate layer to influence the protective effect of the mask; the invention also improves the antistatic property of the polypropylene by adding hexamethylol melamine hexa methyl ether during the processing of the spun-bonded process, solves the problem of accumulation and use of static electricity and plays a role in dust resistance.
The specific implementation mode is as follows:
in order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
The PP in the following examples and comparative examples is from Ningbo Template 5090T.
Example 1
Preparation of modified PP pellets:
dissolving 25g of vinyl tri (dimethylsiloxy) silane and 0.8g of dicumyl peroxide in DMF, adding the mixture into a high-speed mixer, adding 100g of polypropylene into the high-speed mixer, uniformly mixing, and feeding the obtained mixture into a double-screw extruder, wherein the temperature of each section from a feeding port to a machine head of the double-screw extruder is as follows: 178 ℃, 185 ℃, 193 ℃, 204 ℃, 202 ℃, 192 ℃, 181 ℃, and the screw rotating speed of 150r/min, and obtaining the modified PP granules.
Preparation of hydrophobic spunbonded nonwoven fabric:
(1) dissolving 100g of modified PP granules and 1g of hexamethylol melamine hexa methyl ether in DMF to prepare a spinning stock solution with the solid content of 30 wt%, extruding the spinning stock solution through a spinneret (the extrusion speed is 1m/min, and the stretching ratio is 5 times), feeding the spinning stock solution into a coagulating bath (the coagulating bath is an aqueous solution containing 35 wt% of DMF, and the temperature is 25 ℃), sequentially feeding the spinning stock solution into a preheating bath (the preheating bath is an aqueous solution containing 8 wt% of DMF, and the temperature is 70 ℃), a water washing tank (the water temperature is 50 ℃), and a stretching bath (the stretching bath is an aqueous solution containing 2 wt% of sodium dodecyl benzene sulfonate, and the temperature is 105 ℃, and the stretching ratio is 1.2 times), oiling, drying, coiling by a crimping machine, and carrying out steam heat setting (the steam pressure is 0.3MPa, and the setting time is 20min) to obtain the hydrophobic modified PP;
(2) laying the hydrophobic modified PP fiber on a net forming curtain through a wire swinging roller, hot rolling (the temperature of a hot rolling smooth roller is 215 ℃, and the temperature of a pattern roller is 220 ℃), cutting edges, and winding to obtain the hydrophobic spunbonded non-woven fabric.
Example 2
Example 2 differs from example 1 in that the amount of hexamethylol melamine hexa-methyl ether was adjusted, and the rest is the same as example 1.
Preparation of modified PP pellets:
dissolving 25g of vinyl tri (dimethylsiloxy) silane and 0.8g of dicumyl peroxide in DMF, adding the mixture into a high-speed mixer, adding 100g of polypropylene into the high-speed mixer, uniformly mixing, and feeding the obtained mixture into a double-screw extruder, wherein the temperature of each section from a feeding port to a machine head of the double-screw extruder is as follows: 178 ℃, 185 ℃, 193 ℃, 204 ℃, 202 ℃, 192 ℃, 181 ℃, and the screw rotating speed of 150r/min, and obtaining the modified PP granules.
Preparation of hydrophobic spunbonded nonwoven fabric:
(1) dissolving 100g of modified PP granules and 0.8g of hexamethylol melamine hexa methyl ether in DMF to prepare a spinning stock solution with the solid content of 30 wt%, extruding the spinning stock solution through a spinneret (the extrusion speed is 1m/min, and the stretching ratio is 5 times), feeding the spinning stock solution into a coagulating bath (the coagulating bath is an aqueous solution containing 35 wt% of DMF, and the temperature is 25 ℃), sequentially feeding the spinning stock solution into a preheating bath (the preheating bath is an aqueous solution containing 8 wt% of DMF, and the temperature is 70 ℃), a water washing tank (the water temperature is 50 ℃), a stretching bath (the stretching bath is an aqueous solution containing 2 wt% of sodium dodecyl benzene sulfonate, the temperature is 105 ℃, and the stretching ratio is 1.2 times), oiling and drying the spinning stock solution, then coiling the spinning stock solution by a crimper, and carrying out steam heat setting (the steam pressure is 0.3MPa, and the setting time is 20 min;
(2) laying the hydrophobic modified PP fiber on a net forming curtain through a wire swinging roller, hot rolling (the temperature of a hot rolling smooth roller is 215 ℃, and the temperature of a pattern roller is 220 ℃), cutting edges, and winding to obtain the hydrophobic spunbonded non-woven fabric.
Comparative example 1
Comparative example 1 differs from example 1 in that hexamethylol melamine hexamer was not added, as was the case for example 1.
Preparation of modified PP pellets:
dissolving 25g of vinyl tri (dimethylsiloxy) silane and 0.8g of dicumyl peroxide in DMF, adding the mixture into a high-speed mixer, adding 100g of polypropylene into the high-speed mixer, uniformly mixing, and feeding the obtained mixture into a double-screw extruder, wherein the temperature of each section from a feeding port to a machine head of the double-screw extruder is as follows: 178 ℃, 185 ℃, 193 ℃, 204 ℃, 202 ℃, 192 ℃, 181 ℃, and the screw rotating speed of 150r/min, and obtaining the modified PP granules.
Preparation of hydrophobic spunbonded nonwoven fabric:
(1) dissolving 101g of modified PP granules in DMF to prepare a spinning stock solution with the solid content of 30 wt%, extruding the spinning stock solution through a spinning nozzle (the extrusion speed is 1m/min, and the stretching ratio is 5 times), feeding the spinning stock solution into a coagulating bath (the coagulating bath is an aqueous solution containing 35 wt% of DMF, and the temperature is 25 ℃), sequentially feeding the spinning stock solution into a preheating bath (the preheating bath is an aqueous solution containing 8 wt% of DMF, and the temperature is 70 ℃), a water washing tank (the water temperature is 50 ℃), a stretching bath (the stretching bath is an aqueous solution containing 2 wt% of sodium dodecyl benzene sulfonate, and the temperature is 105 ℃, and the stretching ratio is 1.2 times), oiling, drying, coiling by a crimping machine, and carrying out steam heat setting (the steam pressure is 0.3MPa, and the setting time is 20min) to obtain the hydrophobic modified PP fiber;
(2) laying the hydrophobic modified PP fiber on a net forming curtain through a wire swinging roller, hot rolling (the temperature of a hot rolling smooth roller is 215 ℃, and the temperature of a pattern roller is 220 ℃), cutting edges, and winding to obtain the hydrophobic spunbonded non-woven fabric.
Comparative example 2
Comparative example 2 differs from example 1 in that no hydrophobic modification of the PP was performed, as was the case with example 1.
Example 1
Preparation of hydrophobic spunbonded nonwoven fabric:
(1) dissolving 100g of PP granules and 1g of hexamethylol melamine hexa methyl ether in DMF to prepare a spinning stock solution with the solid content of 30 wt%, extruding the spinning stock solution through a spinneret (the extrusion speed is 1m/min, and the stretching ratio is 5 times), feeding the spinning stock solution into a coagulating bath (the coagulating bath is an aqueous solution containing 35 wt% of DMF, and the temperature is 25 ℃), sequentially feeding the spinning stock solution into a preheating bath (the preheating bath is an aqueous solution containing 8 wt% of DMF, and the temperature is 70 ℃), a water washing tank (the water temperature is 50 ℃), a stretching bath (the stretching bath is an aqueous solution containing 2 wt% of sodium dodecyl benzene sulfonate, the temperature is 105 ℃, and the stretching ratio is 1.2 times), oiling, drying, coiling by a crimping machine, and carrying out steam heat setting (the steam pressure is 0.3MPa, and the setting time is 20min) to obtain the hydrophobic modified PP fiber;
(2) laying the hydrophobic modified PP fiber on a net forming curtain through a wire swinging roller, hot rolling (the temperature of a hot rolling smooth roller is 215 ℃, and the temperature of a pattern roller is 220 ℃), cutting edges, and winding to obtain the hydrophobic spunbonded non-woven fabric.
The water contact angles of the nonwoven fabrics produced in the above examples and comparative examples were measured by a german kono a801S contact angle meter.
The nonwoven fabric samples prepared in the above examples and comparative examples with a size of 10cm × 10cm were placed in an environment of 65% RH at 20 ℃ for 24h, and the volume resistivity was tested according to the standard GB/T24249-.
The results of the above tests are shown in Table 1.
TABLE 1 hydrophobic and antistatic Properties of the nonwovens produced in the examples
| Group number | Water contact angle/° c | Volume resistivity/omega. m |
| Example 1 | 158 | 4.2×105 |
| Example 2 | 159 | 5.3×105 |
| Comparative example 1 | 155 | 7.8×108 |
| Comparative example 2 | 103 | 6.1×106 |
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. Utilize high-efficient antiviral protective facial mask of modified PP non-woven production, including gauze mask body and ear area, be equipped with the bridge of the nose strip in the gauze mask body, the gauze mask body comprises moisture absorption inlayer, filtration intermediate level and hydrophobic skin from inside to outside in proper order, its characterized in that: the hydrophobic outer layer is made of hydrophobic spun-bonded non-woven fabric made of modified PP granules through a spun-bonding method, and the preparation method of the modified PP granules comprises the following steps: dissolving vinyl tri (dimethylsiloxy) silane and an initiator in an organic solvent, adding the organic solvent and the initiator into a high-speed mixer, adding polypropylene into the high-speed mixer, uniformly mixing, feeding the obtained mixture into a double-screw extruder, and carrying out melt reaction to obtain the modified PP granules.
2. The high-efficiency antiviral protective mask produced by using the modified PP non-woven fabric according to claim 1, wherein: the mass ratio of the polypropylene to the vinyl tri (dimethylsiloxy) silane is 100: 5-30.
3. The high-efficiency antiviral protective mask produced by using the modified PP non-woven fabric according to claim 1, wherein: the initiator is dicumyl peroxide.
4. The high-efficiency antiviral protective mask produced by using the modified PP non-woven fabric according to claim 1, wherein: the organic solvent is selected from one of DMF, toluene and DMSO.
5. The high-efficiency antiviral protective mask produced by using the modified PP non-woven fabric according to claim 1, wherein: the temperature of each section from the feeding port to the machine head of the double-screw extruder is as follows: 190 ℃ at 160 ℃ at 170 ℃ at 200 ℃ at 170 ℃ at 180 ℃ at 210 ℃ at 180 ℃ at 170 ℃ at 200 ℃ at 170 ℃ at 250 r/min.
6. Method for processing hydrophobic spunbonded nonwovens with modified PP granules prepared according to any of claims 1 to 5, characterised in that it comprises the following processing steps:
(1) dissolving modified PP granules and hexamethylol melamine hexa methyl ether in DMF to prepare spinning stock solution, extruding the spinning stock solution through a spinning nozzle, entering a coagulating bath, then sequentially entering a preheating bath, a water washing tank and a stretching bath, oiling, drying, then reeling through a crimping machine, and carrying out steam heat setting to obtain hydrophobic modified PP fibers;
(2) and (3) laying the hydrophobic modified PP fiber on a net forming curtain through a swinging roller, and carrying out hot rolling, trimming and winding to obtain the hydrophobic spunbonded non-woven fabric.
7. The method for processing the hydrophobic spunbonded nonwoven fabric by using the modified PP granules according to claim 6, which is characterized in that: the mass ratio of the modified PP granules to the hexamethylol melamine hexa-methyl ether is 100: 0.5-5.
8. The method for processing the hydrophobic spunbonded nonwoven fabric by using the modified PP granules according to claim 6, which is characterized in that: the extrusion speed of the spinneret is 0.5-3m/min, and the stretching multiple is 3-8 times.
9. The method for processing the hydrophobic spunbonded nonwoven fabric by using the modified PP granules according to claim 6, which is characterized in that: the temperature of the coagulating bath is 15-35 ℃, the temperature of the preheating bath is 60-80 ℃, the temperature of the stretching bath is 90-110 ℃, the stretching multiple is 1.1-1.5 times, and the steam pressure of the heat setting is 0.1-0.5 MPa.
10. The method for processing the hydrophobic spunbonded nonwoven fabric by using the modified PP granules according to claim 6, which is characterized in that: the temperature of the hot smooth roller is 180-210 ℃, and the temperature of the blooming roller is 200-230 ℃.
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| CN202010456757.7A CN111685415A (en) | 2020-05-26 | 2020-05-26 | High-efficiency antiviral protective mask produced by using modified PP (polypropylene) non-woven fabric |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114316146A (en) * | 2020-10-12 | 2022-04-12 | 杨建强 | Organosilicon modified polypropylene compound, preparation method and application in melt-blown material |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114316146A (en) * | 2020-10-12 | 2022-04-12 | 杨建强 | Organosilicon modified polypropylene compound, preparation method and application in melt-blown material |
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