CN111424377A - Microfiber antibacterial non-woven fabric for protective clothing and manufacturing method and application thereof - Google Patents
Microfiber antibacterial non-woven fabric for protective clothing and manufacturing method and application thereof Download PDFInfo
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- CN111424377A CN111424377A CN202010237676.8A CN202010237676A CN111424377A CN 111424377 A CN111424377 A CN 111424377A CN 202010237676 A CN202010237676 A CN 202010237676A CN 111424377 A CN111424377 A CN 111424377A
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- microfiber
- woven fabric
- treatment
- pet
- protective clothing
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- 239000004745 nonwoven fabric Substances 0.000 title claims abstract description 66
- 229920001410 Microfiber Polymers 0.000 title claims abstract description 49
- 230000000844 anti-bacterial effect Effects 0.000 title claims abstract description 48
- 239000003658 microfiber Substances 0.000 title claims abstract description 48
- 230000001681 protective effect Effects 0.000 title claims abstract description 29
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 23
- 239000000835 fiber Substances 0.000 claims abstract description 74
- 239000004744 fabric Substances 0.000 claims abstract description 65
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 51
- 238000011282 treatment Methods 0.000 claims abstract description 49
- 239000002994 raw material Substances 0.000 claims abstract description 31
- -1 polypropylene Polymers 0.000 claims abstract description 29
- 239000004743 Polypropylene Substances 0.000 claims abstract description 25
- 229920001155 polypropylene Polymers 0.000 claims abstract description 22
- 229920002292 Nylon 6 Polymers 0.000 claims abstract description 20
- 230000005611 electricity Effects 0.000 claims abstract description 19
- 230000003068 static effect Effects 0.000 claims abstract description 19
- 238000001914 filtration Methods 0.000 claims abstract description 17
- 238000000034 method Methods 0.000 claims abstract description 15
- 229920000139 polyethylene terephthalate Polymers 0.000 claims abstract description 12
- 239000005871 repellent Substances 0.000 claims abstract description 12
- 230000002940 repellent Effects 0.000 claims abstract description 11
- 238000001816 cooling Methods 0.000 claims abstract description 8
- 239000002585 base Substances 0.000 claims description 60
- 238000001035 drying Methods 0.000 claims description 31
- 238000005406 washing Methods 0.000 claims description 13
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims description 12
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 claims description 12
- 239000003063 flame retardant Substances 0.000 claims description 12
- 230000009471 action Effects 0.000 claims description 10
- 239000003513 alkali Substances 0.000 claims description 10
- 239000000155 melt Substances 0.000 claims description 10
- 238000009987 spinning Methods 0.000 claims description 10
- 238000002156 mixing Methods 0.000 claims description 7
- 238000002791 soaking Methods 0.000 claims description 6
- 238000007664 blowing Methods 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 5
- 230000002441 reversible effect Effects 0.000 claims description 5
- 239000004698 Polyethylene Substances 0.000 claims description 4
- 239000002216 antistatic agent Substances 0.000 claims description 4
- 229920000573 polyethylene Polymers 0.000 claims description 4
- 239000000463 material Substances 0.000 abstract description 8
- 230000008569 process Effects 0.000 abstract description 5
- 238000011276 addition treatment Methods 0.000 abstract description 3
- 230000000903 blocking effect Effects 0.000 abstract description 3
- 238000009826 distribution Methods 0.000 abstract description 3
- 238000001125 extrusion Methods 0.000 abstract description 3
- 238000002844 melting Methods 0.000 abstract description 3
- 230000008018 melting Effects 0.000 abstract description 3
- 238000010030 laminating Methods 0.000 abstract 1
- 239000000243 solution Substances 0.000 description 22
- 238000001514 detection method Methods 0.000 description 18
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 9
- 239000004753 textile Substances 0.000 description 6
- 241000894006 Bacteria Species 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 239000002245 particle Substances 0.000 description 4
- 238000012795 verification Methods 0.000 description 4
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 3
- 239000004810 polytetrafluoroethylene Substances 0.000 description 3
- 239000012670 alkaline solution Substances 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000036961 partial effect Effects 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 229920006254 polymer film Polymers 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000000845 anti-microbial effect Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000002829 reductive effect Effects 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
Classifications
-
- 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
- D04H3/016—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the fineness
-
- 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
- A41D13/12—Surgeons' or patients' gowns or dresses
-
- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D31/00—Materials specially adapted for outerwear
- A41D31/02—Layered materials
-
- 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
- A41D31/30—Antimicrobial, e.g. antibacterial
- A41D31/305—Antimicrobial, e.g. antibacterial using layered materials
-
- 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
- D01D1/00—Treatment of filament-forming or like material
-
- 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
- D01D5/12—Stretch-spinning methods
- D01D5/14—Stretch-spinning methods with flowing liquid or gaseous stretching media, e.g. solution-blowing
-
- 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
- D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
- D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
- D01F8/06—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyolefin as constituent
-
- 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
- D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
- D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
- D01F8/12—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyamide as constituent
-
- 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
- D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
- D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
- D01F8/14—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyester as constituent
-
- 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
- D04H3/10—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 yarns or filaments made mechanically
- D04H3/11—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 yarns or filaments made mechanically by fluid jet
-
- 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
- D04H3/147—Composite yarns or filaments
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/32—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond
- D06M11/36—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond with oxides, hydroxides or mixed oxides; with salts derived from anions with an amphoteric element-oxygen bond
- D06M11/38—Oxides or hydroxides of elements of Groups 1 or 11 of the Periodic Table
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/21—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/244—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of halogenated hydrocarbons
- D06M15/256—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of halogenated hydrocarbons containing fluorine
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mechanical Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Physical Education & Sports Medicine (AREA)
- Chemical Or Physical Treatment Of Fibers (AREA)
Abstract
The invention provides a microfiber antibacterial non-woven fabric for protective clothing and a manufacturing method and application thereof, wherein PET and polyamide-6 or PET and polypropylene are used as raw materials, and through processes of melting, component distribution, extrusion cooling, drafting, lapping, spunlacing and the like, a two-component hollow orange-petal microfiber base fabric is formed firstly, and then fiber opening, water repellent treatment and static electricity adding treatment are carried out on the base fabric to obtain the microfiber antibacterial non-woven fabric; finally, the protective clothing is manufactured by laminating. According to the invention, through full fiber splitting, the internal structure of the non-woven fabric is more uniform, the softness and comfort of the material are improved, the wearing is more comfortable, on the basis of full fiber splitting of the base fabric of the double-component hollow orange flap superfine fiber, the blocking efficiency of the material can be effectively improved through water repellency treatment and static electricity addition treatment, meanwhile, the filtering efficiency is enhanced, and the problem of filtering efficiency reduction caused by moisture can be solved.
Description
Technical Field
The invention relates to the technical field of non-woven fabric materials, in particular to a microfiber antibacterial non-woven fabric for protective clothing and a manufacturing method and application thereof.
Background
The protective clothing is important epidemic prevention equipment, at present, the non-woven fabrics used by the protective clothing are usually PP spun-bonded non-woven fabrics or SMS composite non-woven fabrics, and the raw materials of the non-woven fabrics are mostly polypropylene.
The PP spunbonded non-woven fabric is poor in bacteria resistance, strength and wearing comfort; the SMS composite nonwoven fabric is excellent in filtration, shielding, barrier, permeation resistance, etc., but is poor in air permeability and wearing comfort, and has a paper feeling. In addition, the non-woven fabric using polypropylene as a raw material causes degradation and aging problems in the subsequent sterilization and irradiation treatment, and the hydrophobic property of the material itself causes moisture to reduce the filtration efficiency.
Disclosure of Invention
In view of the above situation, the present invention provides a microfiber antimicrobial nonwoven fabric for protective clothing, and a manufacturing method and an application thereof, which solve the problems of poor wearing comfort and reduced filtration efficiency caused by moisture in the prior art on the premise of satisfying the filtration effect.
The technical scheme of the invention is as follows:
a manufacturing method of microfiber antibacterial non-woven fabric for protective clothing comprises the following steps:
step 1, preparing raw materials, wherein the raw materials are PET and polyamide-6 or PET and polypropylene;
step 2, drying each component in the raw materials respectively;
step 3, respectively feeding the dried components into a screw, gradually heating up in sections to melt the raw materials, removing air, filtering foreign matters through a filter screen, and then stably feeding the foreign matters into a melt pipeline;
step 4, the melted components enter a spinning assembly after passing through a metering pump in proportion, are mixed, flow and distributed in a channel in the spinning assembly, are finally converged into melt trickle and are extruded from a spinneret orifice;
step 5, gradually cooling and solidifying the melt trickle extruded by the spinneret plate under the action of side blowing;
step 6, drawing, stretching and thinning the cooled tows under the driving of high-speed wind by a drawing pipe filled with compressed air until the fineness reaches a preset value;
step 7, directly acting high-pressure water needles ejected from a high-pressure cavity of the water jet head on the surface of the fiber web to penetrate surface fibers into the fiber web, and piercing back fibers on the reverse side under the rebounding action of the net supporting curtain to enable the fibers to be mutually entangled and clasped, so that the fluffy fiber web forms base cloth;
step 8, drying the base cloth by controlling the pressure of a drying press, and controlling the water content to be 30-50% after drying;
step 9, putting the pressed and dried base cloth into an alkali solution for water washing and fiber splitting;
step 10, performing after-treatment on the pressed and dried base cloth, wherein the after-treatment at least comprises water repellent treatment and static electricity adding treatment, and the water repellent treatment is to soak the base cloth in a solution containing macromolecular fluoride;
and 11, drying the base fabric to obtain the microfiber antibacterial non-woven fabric.
The invention also provides a microfiber antibacterial non-woven fabric for protective clothing, which is manufactured by the manufacturing method.
The invention also provides application of the microfiber antibacterial non-woven fabric, and a polyethylene film is coated on the microfiber antibacterial non-woven fabric to manufacture protective clothing.
According to the microfiber antibacterial non-woven fabric for protective clothing and the manufacturing method and application thereof provided by the invention, PET and polyamide-6 or PET and polypropylene are used as raw materials, through processes of melting, component distribution, extrusion cooling, drafting, lapping, spunlacing and the like, a base cloth of a two-component hollow orange-petal superfine fiber is formed firstly, then fiber opening is carried out on the base cloth, and in an alkaline solution, different thermal shrinkage, strength and tensile resistance of PET and polyamide-6 (or polypropylene) are utilized, so that the PET and the polyamide-6 (or polypropylene) can be better separated, a full fiber opening effect is achieved, and the defect of physical fiber opening of spunlace is overcome; meanwhile, the alkali liquor has a certain corrosion effect, so that the surface of the PET fiber becomes coarse and super, partial splitting and splitting appear on the fiber surface in a microscopic mode, the specific surface area of the fiber is further increased, the internal structure of the non-woven fabric is more uniform, the water guide function of the non-woven fabric is increased, after the fiber is split, the non-woven fabric is subjected to after-treatment through high polymer fluoride, a layer of fluoride polymer film can be uniformly added on the fiber, the fiber is provided with a small amount of charges in the drying process, then the base fabric is subjected to static electricity adding treatment, static electricity is further added, the non-woven fabric with the static electricity added can generate a static electricity adsorption function on particles and bacteria, the filtering efficiency of the bacteria and the particles is improved, and the filtering efficiency of the super-fiber antibacterial non-woven fabric manufactured by the method can reach. According to the invention, through full fiber splitting, the softness and comfort of the material are improved, the wearing is more comfortable, on the basis of full fiber splitting of the base cloth of the double-component hollow orange-petal superfine fiber, the blocking efficiency of the material can be effectively improved through water repellency treatment and static electricity addition treatment, and meanwhile, the filtering efficiency is enhanced.
In addition, the manufacturing method of the microfiber antibacterial non-woven fabric for the protective clothing, provided by the invention, also has the following technical characteristics:
further, when the raw materials are PET and polyamide-6, in step 4, the mixing ratio of the components in the raw materials is as follows: 60% PET and 40% polyamide-6;
when the raw materials are PET and polypropylene, in the step 4, the mixing ratio of the components in the raw materials is as follows: 40% PET and 60% polypropylene.
Further, step 9 specifically includes:
and (3) putting the base cloth into an alkali solution with the concentration of 0.5%, and washing for 2-4 times at 100 ℃.
Further, in step 10, the water-repellent treatment specifically comprises:
soaking the base cloth in a macromolecular fluoride solution with the concentration of 1.5%, washing for 2-4 times at the temperature of 100 ℃, and controlling the water content to be 110-130% by controlling the pressure of a press dryer.
Further, step 6 specifically includes:
the cooled tows pass through a drawing pipe filled with compressed air and are drawn, stretched and thinned under the drive of high-speed air until the fineness reaches 2.4D-2.8D.
Further, in step 10, the adding electrostatic treatment specifically comprises:
the base cloth was immersed in a solution containing an antistatic agent at a concentration of 3%.
Further, in step 10, the post-finishing further comprises a flame retardant treatment, wherein the flame retardant treatment is to soak the base fabric in a solution containing a flame retardant.
Further, the high molecular fluoride is polytetrafluoroethylene.
Further, the alkali solution is a NaOH solution.
Further, step 2 specifically comprises:
dehumidifying polyamide-6 with 110 deg.C hot compressed air to water content below 100PPm, drying PET with 170 deg.C hot compressed air, and crystallizing to water content below 30 PPm;
or;
the polypropylene is dehumidified by hot compressed air at 110 ℃ to make the water content below 100PPm, and the PET is dried by hot compressed air at 170 ℃ and crystallized to make the water content below 30 PPm.
Detailed Description
In order that the invention may be more fully understood, reference will now be made to various embodiments. The present invention may be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
The embodiment of the invention provides a method for manufacturing a microfiber antibacterial non-woven fabric for protective clothing, which comprises the following steps:
step 1, preparing raw materials, wherein the raw materials are PET and polyamide-6 or PET and polypropylene;
step 2, drying each component in the raw materials respectively;
step 3, respectively feeding the dried components into a screw, gradually heating up in sections to melt the raw materials, removing air, filtering foreign matters through a filter screen, and then stably feeding the foreign matters into a melt pipeline;
step 4, the melted components enter a spinning assembly after passing through a metering pump in proportion, are mixed, flow and distributed in a channel in the spinning assembly, are finally converged into melt trickle and are extruded from a spinneret orifice;
step 5, gradually cooling and solidifying the melt trickle extruded by the spinneret plate under the action of side blowing;
step 6, drawing, stretching and thinning the cooled tows under the driving of high-speed wind by a drawing pipe filled with compressed air until the fineness reaches a preset value;
step 7, directly acting high-pressure water needles ejected from a high-pressure cavity of the water jet head on the surface of the fiber web to penetrate surface fibers into the fiber web, and piercing back fibers on the reverse side under the rebounding action of the net supporting curtain to enable the fibers to be mutually entangled and clasped, so that the fluffy fiber web forms base cloth;
step 8, drying the base cloth by controlling the pressure of a drying press, and controlling the water content to be 30-50% after drying;
step 9, putting the pressed and dried base cloth into an alkali solution for water washing and fiber splitting;
step 10, performing after-treatment on the pressed and dried base cloth, wherein the after-treatment at least comprises water repellent treatment and static electricity adding treatment, and the water repellent treatment is to soak the base cloth in a solution containing macromolecular fluoride;
and 11, drying the base fabric to obtain the microfiber antibacterial non-woven fabric.
The following examples are intended to illustrate the invention in more detail. The embodiments of the present invention are not limited to the following specific examples. The present invention can be modified and implemented as appropriate within the scope of the main claim.
Example 1:
a manufacturing method of microfiber antibacterial non-woven fabric for protective clothing comprises the following steps:
step 1, preparing raw materials of PET and polyamide-6 (namely PA-6);
step 2, drying each component in the raw materials respectively, wherein polyamide-6 is dehumidified by hot compressed air at 110 ℃ to enable the water content to be below 100PPm, and PET is crystallized after being dried by hot compressed air at 170 ℃ to enable the water content to be below 30 PPm;
step 3, respectively feeding the dried components into a screw, gradually heating up in sections to melt the raw materials, removing air, filtering foreign matters through a filter screen, and then stably feeding the foreign matters into a melt pipeline;
step 4, enabling the molten components to enter a spinning assembly through a metering pump according to the proportion (the mixing proportion is 60 percent of PET and 40 percent of polyamide-6), mixing, flowing and distributing in a channel in the spinning assembly, finally converging into melt trickle, and extruding from a spinneret orifice;
step 5, gradually cooling and solidifying the melt trickle extruded by the spinneret plate under the action of side blowing;
step 6, drawing, stretching and thinning the cooled tows under the driving of high-speed wind by a drawing pipe filled with compressed air until the fineness reaches 2.4D-2.8D;
step 7, directly acting high-pressure water needles ejected from a high-pressure cavity of the water jet head on the surface of the fiber web to penetrate surface fibers into the fiber web, and piercing back fibers on the reverse side under the rebounding action of the net supporting curtain to enable the fibers to be mutually entangled and clasped, so that the fluffy fiber web forms base cloth;
step 8, drying the base cloth by controlling the pressure of a drying press, and controlling the water content to be 30-50% after drying;
step 9, putting the pressed and dried base cloth into an alkali solution for water washing and fiber splitting, specifically putting the base cloth into a 0.5% NaOH solution, and washing for 2-4 times at 100 ℃;
step 10, performing after-treatment on the pressed and dried base cloth, wherein the after-treatment comprises water repellent treatment, static electricity adding treatment and flame retardant treatment, the water repellent treatment is to soak the base cloth in a solution containing a macromolecular fluoride, specifically to soak the base cloth in a polytetrafluoroethylene solution with the concentration of 1.5%, washing for 2-4 times at 100 ℃, controlling the water content to be 110-130% by controlling the pressure of a press dryer, soaking the base cloth in a solution containing a flame retardant for flame retardant treatment, drying the base cloth, and soaking the base cloth in a solution containing an antistatic agent with the concentration of 3% to enable the base cloth to be added with static electricity;
and 11, drying the base fabric to obtain the microfiber antibacterial non-woven fabric.
After the microfiber antibacterial non-woven fabric is obtained, the microfiber antibacterial non-woven fabric is covered with a polyethylene film, and finally the protective clothing is manufactured according to a conventional textile process.
In this embodiment, the obtained microfiber antibacterial non-woven fabrics are respectively delivered to Shanghai textile group detection standards, Inc. for detection, and the detection results are as follows:
in this embodiment, the obtained microfiber antibacterial non-woven fabric is respectively sent to standard technical service limited (SGS) for detection, and the detection results are as follows:
in this embodiment, a comparative verification is performed, and the base fabric obtained in step 8 (without the treatment of fiber splitting and post-finishing) is sent to Shanghai textile group detection Standard, Inc. for detection, and the detection results are as follows:
and (3) detecting the base cloth delivery service standard technical service company limited (SGS) obtained in the step (8), wherein the detection result is as follows:
the comparison and verification show that various performances of the processed microfiber antibacterial non-woven fabric subjected to fiber splitting and after-finishing are obviously superior to those of the microfiber antibacterial non-woven fabric which is not subjected to fiber splitting and after-finishing, and the microfiber antibacterial non-woven fabric subjected to fiber splitting and after-finishing can meet the test requirements.
Example 2:
a manufacturing method of microfiber antibacterial non-woven fabric for protective clothing comprises the following steps:
step 1, preparing raw materials PET and polypropylene (namely PP);
step 2, drying each component in the raw materials respectively, wherein polypropylene is dehumidified by hot compressed air at 110 ℃ to enable the moisture content of the polypropylene to be less than 100PPm, and PET is crystallized after being dried by hot compressed air at 170 ℃ to enable the moisture content of the PET to be less than 30 PPm;
step 3, respectively feeding the dried components into a screw, gradually heating up in sections to melt the raw materials, removing air, filtering foreign matters through a filter screen, and then stably feeding the foreign matters into a melt pipeline;
step 4, feeding the molten components into a spinning assembly through a metering pump according to a proportion (the mixing proportion is 40% of PET and 60% of polypropylene), mixing, flowing and distributing in a channel in the spinning assembly, finally converging into melt trickle, and extruding from a spinneret orifice;
step 5, gradually cooling and solidifying the melt trickle extruded by the spinneret plate under the action of side blowing;
step 6, drawing, stretching and thinning the cooled tows under the driving of high-speed wind by a drawing pipe filled with compressed air until the fineness reaches 2.4D-2.8D;
step 7, directly acting high-pressure water needles ejected from a high-pressure cavity of the water jet head on the surface of the fiber web to penetrate surface fibers into the fiber web, and piercing back fibers on the reverse side under the rebounding action of the net supporting curtain to enable the fibers to be mutually entangled and clasped, so that the fluffy fiber web forms base cloth;
step 8, drying the base cloth by controlling the pressure of a drying press, and controlling the water content to be 30-50% after drying;
step 9, putting the dried base cloth into an alkali solution for water washing and fiber splitting, specifically putting the base cloth into a 0.5% NaOH solution, and washing for 2-4 times at 100 ℃;
step 10, performing after-treatment on the pressed and dried base cloth, wherein the after-treatment comprises water repellent treatment, static electricity adding treatment and flame retardant treatment, the water repellent treatment is to soak the base cloth in a solution containing a macromolecular fluoride, specifically to soak the base cloth in a polytetrafluoroethylene solution with the concentration of 1.5%, washing for 2-4 times at 100 ℃, controlling the water content to be 110-130% by controlling the pressure of a press dryer, soaking the base cloth in a solution containing a flame retardant for flame retardant treatment, drying the base cloth, and soaking the base cloth in a solution containing an antistatic agent with the concentration of 3% to enable the base cloth to be added with static electricity;
and 11, drying the base fabric to obtain the microfiber antibacterial non-woven fabric.
After the microfiber antibacterial non-woven fabric is obtained, the microfiber antibacterial non-woven fabric is covered with a polyethylene film, and finally the protective clothing is manufactured according to a conventional textile process.
In this embodiment, the obtained microfiber antibacterial non-woven fabrics are respectively delivered to Shanghai textile group detection standards, Inc. for detection, and the detection results are as follows:
in this embodiment, the obtained microfiber antibacterial non-woven fabric is respectively sent to standard technical service limited (SGS) for detection, and the detection results are as follows:
in this embodiment, a comparative verification is performed, and the base fabric obtained in step 8 (without the treatment of fiber splitting and post-finishing) is sent to Shanghai textile group detection Standard, Inc. for detection, and the detection results are as follows:
and (3) detecting the base cloth delivery service standard technical service company limited (SGS) obtained in the step (8), wherein the detection result is as follows:
the comparison and verification show that various performances of the processed microfiber antibacterial non-woven fabric subjected to fiber splitting and after-finishing are obviously superior to those of the microfiber antibacterial non-woven fabric which is not subjected to fiber splitting and after-finishing, and the microfiber antibacterial non-woven fabric subjected to fiber splitting and after-finishing can meet the test requirements.
In conclusion, according to the microfiber antibacterial non-woven fabric for protective clothing and the manufacturing method and application thereof provided by the invention, PET and polyamide-6 or PET and polypropylene are used as raw materials, through processes of melting, component distribution, extrusion cooling, drafting, lapping, spunlace and the like, a base fabric of the two-component hollow orange-peel ultrafine fiber is formed firstly, then fiber opening is carried out on the base fabric, and in an alkaline solution, different thermal shrinkage, strength and tensile resistance of PET and polyamide-6 (or polypropylene) are utilized, so that the PET and polyamide-6 (or polypropylene) can be better separated, a full fiber opening effect is achieved, and the defect of physical fiber opening of spunlace is overcome; meanwhile, the alkali liquor has a certain corrosion effect, so that the surface of the PET fiber becomes coarse and super, partial splitting and splitting appear on the fiber surface in a microscopic mode, the specific surface area of the fiber is further increased, the internal structure of the non-woven fabric is more uniform, the water guide function of the non-woven fabric is increased, after the fiber is split, the non-woven fabric is subjected to after-treatment through high polymer fluoride, a layer of fluoride polymer film can be uniformly added on the fiber, the fiber is provided with a small amount of charges in the drying process, then the base fabric is subjected to static electricity adding treatment, static electricity is further added, the non-woven fabric with the static electricity added can generate a static electricity adsorption function on particles and bacteria, the filtering efficiency of the bacteria and the particles is improved, and the filtering efficiency of the super-fiber antibacterial non-woven fabric manufactured by the method can reach. According to the invention, through full fiber splitting, the softness and comfort of the material are improved, the wearing is more comfortable, on the basis of full fiber splitting of the base cloth of the double-component hollow orange-petal superfine fiber, the blocking efficiency of the material can be effectively improved through water repellency treatment and static electricity addition treatment, and meanwhile, the filtering efficiency is enhanced.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A manufacturing method of microfiber antibacterial non-woven fabric for protective clothing is characterized by comprising the following steps:
step 1, preparing raw materials, wherein the raw materials are PET and polyamide-6 or PET and polypropylene;
step 2, drying each component in the raw materials respectively;
step 3, respectively feeding the dried components into a screw, gradually heating up in sections to melt the raw materials, removing air, filtering foreign matters through a filter screen, and then stably feeding the foreign matters into a melt pipeline;
step 4, the melted components enter a spinning assembly after passing through a metering pump in proportion, are mixed, flow and distributed in a channel in the spinning assembly, are finally converged into melt trickle and are extruded from a spinneret orifice;
step 5, gradually cooling and solidifying the melt trickle extruded by the spinneret plate under the action of side blowing;
step 6, drawing, stretching and thinning the cooled tows under the driving of high-speed wind by a drawing pipe filled with compressed air until the fineness reaches a preset value;
step 7, directly acting high-pressure water needles ejected from a high-pressure cavity of the water jet head on the surface of the fiber web to penetrate surface fibers into the fiber web, and piercing back fibers on the reverse side under the rebounding action of the net supporting curtain to enable the fibers to be mutually entangled and clasped, so that the fluffy fiber web forms base cloth;
step 8, drying the base cloth by controlling the pressure of a drying press, and controlling the water content to be 30-50% after drying;
step 9, putting the pressed and dried base cloth into an alkali solution for water washing and fiber splitting;
step 10, performing after-treatment on the pressed and dried base cloth, wherein the after-treatment at least comprises water repellent treatment and static electricity adding treatment, and the water repellent treatment is to soak the base cloth in a solution containing macromolecular fluoride;
and 11, drying the base fabric to obtain the microfiber antibacterial non-woven fabric.
2. The method for manufacturing the microfiber antibacterial non-woven fabric for protective clothing according to claim 1, wherein when the raw materials are PET and polyamide-6, in step 4, the raw materials are mixed in the following ratio: 60% PET and 40% polyamide-6;
when the raw materials are PET and polypropylene, in the step 4, the mixing ratio of the components in the raw materials is as follows: 40% PET and 60% polypropylene.
3. The method for manufacturing the microfiber antibacterial nonwoven fabric for protective clothing according to claim 1, wherein the step 9 is specifically:
and (3) putting the base cloth into an alkali solution with the concentration of 0.5%, and washing for 2-4 times at 100 ℃.
4. The method for manufacturing the microfiber antibacterial nonwoven fabric for protective clothing according to claim 1, wherein in the step 10, the water repellency treatment specifically comprises:
soaking the base cloth in a macromolecular fluoride solution with the concentration of 1.5%, washing for 2-4 times at the temperature of 100 ℃, and controlling the water content to be 110-130% by controlling the pressure of a press dryer.
5. The method for manufacturing the microfiber antibacterial non-woven fabric for protective clothing according to claim 1, wherein the step 6 specifically comprises:
the cooled tows pass through a drawing pipe filled with compressed air and are drawn, stretched and thinned under the drive of high-speed air until the fineness reaches 2.4D-2.8D.
6. The method for manufacturing the microfiber antibacterial nonwoven fabric for protective clothing according to claim 1, wherein the step 10 is to add electrostatic treatment specifically as follows:
the base cloth was immersed in a solution containing an antistatic agent at a concentration of 3%.
7. The method for manufacturing the microfiber antibacterial non-woven fabric for protective clothing according to claim 1, wherein the post-finishing in step 10 further comprises a flame retardant treatment, wherein the flame retardant treatment is to soak the base fabric in a solution containing a flame retardant.
8. The method for manufacturing the microfiber antibacterial non-woven fabric for protective clothing according to claim 1, wherein the step 2 specifically comprises:
dehumidifying polyamide-6 with 110 deg.C hot compressed air to water content below 100PPm, drying PET with 170 deg.C hot compressed air, and crystallizing to water content below 30 PPm;
or;
the polypropylene is dehumidified by hot compressed air at 110 ℃ to make the water content below 100PPm, and the PET is dried by hot compressed air at 170 ℃ and crystallized to make the water content below 30 PPm.
9. A microfiber antibacterial nonwoven fabric for protective clothing, characterized in that the microfiber antibacterial nonwoven fabric is manufactured by the manufacturing method of any one of claims 1 to 8.
10. The use of the microfiber antibacterial nonwoven fabric according to claim 9, wherein the microfiber antibacterial nonwoven fabric is covered with a polyethylene film to form a protective garment.
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