CN112941719A - Hot air non-woven fabric special for electrostatic cotton mask and preparation method thereof - Google Patents

Hot air non-woven fabric special for electrostatic cotton mask and preparation method thereof Download PDF

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Publication number
CN112941719A
CN112941719A CN202110127292.5A CN202110127292A CN112941719A CN 112941719 A CN112941719 A CN 112941719A CN 202110127292 A CN202110127292 A CN 202110127292A CN 112941719 A CN112941719 A CN 112941719A
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mask
hot air
woven fabric
electrostatic
preparation
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朱云斌
丁希权
曹克静
葛杨
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Jiangsu Shengfang Nano Science And Technology Co ltd
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Jiangsu Shengfang Nano Science And Technology Co ltd
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    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04HMAKING 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
    • D04H1/00Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40Non-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
    • D04H1/42Non-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 characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4382Stretched reticular film fibres; Composite fibres; Mixed fibres; Ultrafine fibres; Fibres for artificial leather
    • AHUMAN NECESSITIES
    • A41WEARING APPAREL
    • A41DOUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D13/00Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
    • A41D13/05Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches protecting only a particular body part
    • A41D13/11Protective face masks, e.g. for surgical use, or for use in foul atmospheres
    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01DMECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00Formation of filaments, threads, or the like
    • D01D5/28Formation of filaments, threads, or the like while mixing different spinning solutions or melts during the spinning operation; Spinnerette packs therefor
    • D01D5/30Conjugate filaments; Spinnerette packs therefor
    • D01D5/34Core-skin structure; Spinnerette packs therefor
    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01FCHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F1/00General methods for the manufacture of artificial filaments or the like
    • D01F1/02Addition of substances to the spinning solution or to the melt
    • D01F1/10Other agents for modifying properties
    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01FCHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F8/00Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
    • D01F8/04Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
    • D01F8/06Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyolefin as constituent
    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04HMAKING 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
    • D04H1/00Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40Non-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
    • D04H1/44Non-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 the fleeces or layers being consolidated by mechanical means, e.g. by rolling
    • D04H1/46Non-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 the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
    • D04H1/492Non-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 the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres by fluid jet
    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04HMAKING 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
    • D04H1/00Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40Non-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
    • D04H1/54Non-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
    • D04H1/541Composite fibres, e.g. sheath-core, sea-island or side-by-side; Mixed fibres
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06CFINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
    • D06C15/00Calendering, pressing, ironing, glossing or glazing textile fabrics
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06CFINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
    • D06C7/00Heating or cooling textile fabrics
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06MTREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M10/00Physical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. ultrasonic, corona discharge, irradiation, electric currents, or magnetic fields; Physical treatment combined with treatment with chemical compounds or elements
    • D06M10/02Physical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. ultrasonic, corona discharge, irradiation, electric currents, or magnetic fields; Physical treatment combined with treatment with chemical compounds or elements ultrasonic or sonic; Corona discharge
    • D06M10/025Corona discharge or low temperature plasma

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mechanical Engineering (AREA)
  • General Health & Medical Sciences (AREA)
  • Plasma & Fusion (AREA)
  • Physics & Mathematics (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Health & Medical Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)

Abstract

The invention discloses a hot air non-woven fabric special for an electrostatic cotton mask and a preparation method thereof. The preparation method comprises the following steps: the PE/PP composite fiber with the skin-core structure added with the electret master batch is used as a raw material, and the hot air non-woven fabric special for the electrostatic cotton mask is obtained through feeding, opening, cotton mixing, carding, hot air bonding, cooling, spunlace treatment, drying and electret treatment. The hot air non-woven fabric special for the electrostatic cotton mask has an electrostatic effect, the filtering effect of the mask can be enhanced, and the filtering effect of the mask can be better and more durable due to long electrostatic storage time; have good ventilation effect, support the inside space of gauze mask, reduce the respiratory resistance when wearing the gauze mask, reduced atomization phenomenon, have good fluffy effect, the one side is more smooth, not fluffy, and the one side is more fluffy in addition, uses on the gauze mask product, has improved the comfort that the gauze mask was worn.

Description

Hot air non-woven fabric special for electrostatic cotton mask and preparation method thereof
Technical Field
The invention relates to the technical field of hot air non-woven fabrics, relates to a hot air non-woven fabric and a preparation method thereof, and particularly relates to a special hot air non-woven fabric for an electrostatic cotton mask and a preparation method thereof.
Background
The mask is a health care product commonly used in daily life of people, most of the masks which are commonly used at first are sewn by gauze, fine cloth or common non-woven cloth, and the masks only have the function of isolating dust, impurities and fiber substances in the air from entering the oral cavity and the nasal cavity.
SARS was abused in 2003, the widespread spread of avian influenza and various respiratory infectious diseases in recent years, and the global spread of type a H1N1 in recent years have brought serious threats to human health, and these diseases are all spread by air entrainment or contact with secretion of patients, and an important protective measure for preventing these diseases is wearing a mask. However, the common dust mask cannot meet the requirements, and people are vigorously researching and developing novel masks.
CN103757825B discloses a non-woven fabric for a mask and a production process thereof, wherein the anti-static antibacterial non-woven fabric comprises the following components: 12-18 parts of silver-loaded phosphoric acid, 25-1 part of antistatic agent HD-3500.6, 1-1 part of antistatic agent HD-2000.6, 10100.5-1.5 parts of antioxidant, 204060-70 parts of polypropylene, 0.8-12 parts of lecithin and 2-4 parts of polylactic acid, and the raw materials are made into the anti-static antibacterial non-woven fabric through a non-woven fabric manufacturing process. The mask body is compounded by the non-woven fabric, so that the mask can prevent the invasion of pathogenic bacteria and the generation of static electricity, can improve the use comfort, and is convenient for electronic industry workers to use. However, the non-woven fabric for a mask of the present invention has a good antistatic effect, and thus does not have a good adsorption effect and thus does not have a good protective effect.
CN106930003B discloses a static fiber hot air non-woven fabric filter screen and a preparation method and application thereof, belonging to the technical field of novel industrial materials, the invention uses static fibers with a composite spinning skin core layer structure as raw materials, adopts a hot air non-woven fabric production process, and concretely relates to a preparation method for processing the static fiber hot air non-woven fabric filter screen through fiber bale opening and mixing, rough opening, fine opening, large-bin cotton mixing, quantitative cotton feeding, carding, web forming, hot air bonding and cooling treatment, the mass per square meter of the static fiber hot air non-woven fabric filter screen produced by the method is 15g/m2-100g/m2Is particularly suitable for processing novel safe and comfortable protective masks and can also be applied to liquid filtration. However, the electrostatic storage of the electrostatic fiber hot air non-woven fabric filter screen prepared by the invention needs to be further improved.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide the hot air non-woven fabric special for the electrostatic cotton mask and the preparation method thereof, the hot air non-woven fabric special for the electrostatic cotton mask has an electrostatic effect, the filtering effect of the mask can be enhanced, and the filtering effect of the mask can be better and more lasting due to long electrostatic storage time; have good ventilation effect, support the inside space of gauze mask, reduce the respiratory resistance when wearing the gauze mask, reduced atomization phenomenon, have good fluffy effect, the one side is more smooth, not fluffy, and the one side is more fluffy in addition, uses on the gauze mask product, has improved the comfort that the gauze mask was worn.
One of the purposes of the invention is to provide a hot air non-woven fabric special for an electrostatic cotton mask, and in order to achieve the purpose, the invention adopts the following technical scheme:
a preparation method of hot air non-woven fabric special for an electrostatic cotton mask comprises the following steps: the PE/PP composite fiber with the skin-core structure added with the electret master batch is used as a raw material, and the hot air non-woven fabric special for the electrostatic cotton mask is obtained through feeding, opening, cotton mixing, carding, hot air bonding, cooling, spunlace treatment, drying and electret treatment.
According to the hot air non-woven fabric special for the electrostatic cotton mask, the oil agent on the surface of the raw material fiber is removed through spunlace treatment, the electret master batch is added and is subjected to electret treatment, so that the electrostatic effect is achieved, the filtering effect of the mask is enhanced, and the filtering effect of the mask is better and more durable due to long electrostatic storage time; the hot air non-woven fabric special for the electrostatic cotton mask prepared by the preparation method has a good ventilation effect, supports the space inside the mask, reduces the breathing resistance when the mask is worn, and reduces the atomization phenomenon; the prepared hot air non-woven fabric special for the electrostatic cotton mask has a good fluffy effect, one surface of the hot air non-woven fabric is smooth and fluffy, the other surface of the hot air non-woven fabric is fluffy, and the hot air non-woven fabric is applied to mask products and improves the comfort of wearing the mask.
The mass of the electret master batch accounts for 5-10% of the mass of the PE/PP composite fiber, for example, the mass of the electret master batch accounts for 5%, 6%, 7%, 8%, 9% or 10% of the mass of the PE/PP composite fiber.
In the conventional skin-core structure, a layer of oiling agent is usually attached to the surface of the PE/PP composite fiber for carding in hot air bonding, but the fiber with the oiling agent can generate static electricity release in electret process, and the filtering effect can be influenced.
Preferably, the electret master batch comprises the following components in percentage by mass:
the polypropylene is 80 to 90% by mass, for example, 80%, 81%, 82%, 83%, 84%, 85%, 86%, 87%, 88%, 89%, or 90%.
The mass percentage of graphene is 5 to 10%, for example, 5%, 6%, 7%, 8%, 9%, 10%, or the like.
The inorganic nano material is 5-10% by mass, for example, 5%, 6%, 7%, 8%, 9%, 10%, or the like.
The skin layer structure of the PE/PP composite fiber is a PE material, and the core layer structure is a PP material.
Preferably, the PE/PP composite fiber has a specification of 2Dx38 mm.
Preferably, the inorganic nano material is nano tourmaline powder and/or nano silicon dioxide.
The feeding process comprises the following steps: and respectively putting the 2D 38MM PE/PP composite fibers for opening the cotton bale into a No. 1 bale opener and a No. 2 bale opener, and putting the fibers into equipment in proportion through an electronic scale of the bale opener.
The opening process comprises the following steps: and (3) feeding the proportioned fibers into an opener to loosen the agglomerated fibers.
The cotton blending process comprises the following steps: and (4) sending the opened fibers into a cotton mixing box, and fully mixing the two fibers.
The carding process comprises the following steps: and sending the mixed fibers into a carding machine for fully carding, carding the fibers into monofilaments, and laying the monofilaments into uniform cotton nets.
The hot air bonding process comprises the following steps: and (3) sending the cotton net into a hot air oven, melting the PE component on the outer layer of the composite fiber through hot air flow in a No. 1-5 oven, and bonding the fibers together to form the non-woven fabric with certain strength. The temperature of the hot air bonding is 145-150 ℃, for example, the temperature of No. 1-5 oven is 146 ℃, 147 ℃, 149.5 ℃ and 148 ℃ in sequence.
The spunlace treatment process comprises the following steps: the nonwoven fabric roll is sent to a spunlace machine for spunlace treatment, and the oil agent on the surface of the fiber is cleaned, wherein the pressure of the spunlace treatment is 25-35MPa, for example, the pressure of the spunlace treatment is 25MPa, 26MPa, 27MPa, 28MPa, 29MPa, 30MPa, 31MPa, 32MPa, 33MPa, 34MPa or 35MPa, and the like.
The temperature of the drying treatment is 110-.
The electret treatment process comprises the following steps: and (3) conveying the rolled non-woven fabric to a splitting machine, performing electret treatment, and splitting according to the requirements of customers, wherein the voltage of the electret treatment is 50-55KV, for example, the voltage of the electret treatment is 50KV, 51KV, 52KV, 53KV, 54KV or 55KV and the like.
The cooling includes air cooling and water cooling.
The air cooling process comprises the following steps: and cooling and shaping the cloth discharged from the oven by cold airflow.
The water cooling process comprises the following steps: cooling the non-woven fabric by a cold water roller, and shaping.
The ironing step is also included between the air cooling and the water cooling; the ironing process comprises the following steps: and ironing the cooled cloth to prevent fluffing and hair falling.
Preferably, the ironing temperature is 140-150 ℃, for example, the ironing temperature is 140 ℃, 141 ℃, 142 ℃, 143 ℃, 144 ℃, 145 ℃, 146 ℃, 147 ℃, 148 ℃, 149 ℃ or 150 ℃, etc.
The second purpose of the invention is to provide the hot air non-woven fabric special for the electrostatic cotton mask, which is obtained by the preparation method of the first purpose.
The third object of the present invention is to provide an electrostatic cotton mask manufactured by using the hot-air nonwoven fabric for electrostatic cotton mask described in the second object.
Compared with the prior art, the invention has the beneficial effects that:
the hot air non-woven fabric special for the electrostatic cotton mask prepared by the preparation method has an electrostatic effect, can enhance the filtering effect of the mask, can enable the filtering effect of the mask to be better and more durable due to long electrostatic storage time, and specifically has the filtering efficiency of more than 91 percent, and is reduced within 8 percent after being placed for 120 hours under the conditions of normal temperature and normal humidity, which indicates that the electrostatic storage effect is good; the mask has good ventilation effect, supports the space inside the mask, reduces the breathing resistance when the mask is worn, and reduces the atomization phenomenon; the comfortable gauze mask has a good fluffy effect, one surface of the comfortable gauze mask is smooth and fluffy, and the other surface of the comfortable gauze mask is fluffy and is applied to a gauze mask product, so that the comfortable feeling of wearing the gauze mask is improved.
Detailed Description
The technical solution of the present invention is further explained by the following embodiments.
Unless otherwise specified, various starting materials of the present invention are commercially available or prepared according to conventional methods in the art.
The preparation method of the hot air non-woven fabric special for the electrostatic cotton mask comprises the following steps: the PE/PP composite fiber with the skin-core structure added with the electret master batch is used as a raw material, and the hot air non-woven fabric special for the electrostatic cotton mask is obtained through feeding, opening, cotton mixing, carding, hot air bonding, cooling, spunlace treatment, drying and electret treatment.
Example 1
The preparation method of the hot air non-woven fabric special for the electrostatic cotton mask comprises the following steps:
feeding: the 2D 38MM PE/PP composite fibers (PZ11) for opening the cotton bale are respectively put into a No. 1 bale opener and a No. 2 bale opener, and the fibers are proportionally put into the equipment through an electronic scale of the bale opener. The electret master batch comprises, by mass, 5% of electret master batch, 85% of polypropylene Y1500 (China petrochemical company, Inc.), 8% of graphene, 5% of nano tourmaline powder and 2% of nano silicon dioxide.
Opening: and (3) feeding the proportioned fibers into an opener to loosen the agglomerated fibers.
Cotton mixing: and (4) sending the opened fibers into a cotton mixing box, and fully mixing the two fibers.
Carding: and sending the mixed fibers into a carding machine for fully carding, carding the fibers into monofilaments, and laying the monofilaments into uniform cotton nets.
Hot air bonding: and (3) sending the cotton net into a hot air oven, melting the PE component on the outer layer of the composite fiber through hot air flow in a No. 1-5 oven, and bonding the fibers together to form the non-woven fabric with certain strength.
And (3) wind cooling: and cooling and shaping the cloth discharged from the oven by cold airflow.
Ironing: and ironing the cooled cloth to prevent fluffing and hair falling.
Water cooling: and cooling the ironed non-woven fabric by a cold water roller, and shaping.
Winding: and rolling the cooled and shaped non-woven fabric to form a non-woven fabric roll.
And (3) carrying out spunlace treatment: and (3) conveying the rolled non-woven fabric roll to a spunlace machine for spunlace treatment, and cleaning oil on the surface of the fiber.
Drying: and (4) feeding the cleaned non-woven fabric into an oven for drying and rolling.
An electret: and (4) conveying the rolled non-woven fabric to a splitting machine, performing electret treatment and splitting.
Wherein the specific process parameters are shown in table 1.
TABLE 1
Figure BDA0002924419740000071
Figure BDA0002924419740000081
Example 2
The present example is different from example 1 in that the mass ratio of the electret base particles in the composite fiber is 8%, and the other examples are the same as those of example 1.
Example 3
The present example is different from example 1 in that the mass ratio of the electret base particles in the composite fiber is 10%, and the other examples are the same as those of example 1.
Example 4
The present example is different from example 1 in that the mass ratio of the electret base particles in the composite fiber is 1%, and the other examples are the same as those of example 1.
Example 5
The present example is different from example 1 in that the mass ratio of the electret base particles in the composite fiber is 20%, and the other examples are the same as those of example 1.
Example 6
This example is different from example 1 in that the pressure of the water-jet treatment was 10MPa, and the rest was the same as example 1.
Example 7
This example is different from example 1 in that the pressure of the water-jet treatment was 40MPa, and the rest was the same as example 1.
Example 8
This example is different from example 1 in that the voltage of the electret treatment is 20MPa, and the others are the same as those of example 1.
Example 9
This example is different from example 1 in that the voltage of the electret treatment is 80MPa, and the others are the same as those of example 1.
Example 10
The difference between this example and example 1 is that the electret masterbatch does not contain graphene, and the amount of reduced graphene is averagely added to other components to ensure that the total amount is not changed.
Example 11
This example is different from example 1 in that the electret mother particles do not contain inorganic nano-materials, and the amount of the reduced inorganic nano-materials is averagely added to other components to ensure that the total amount is not changed.
Comparative example 1
This comparative example is different from example 1 in that it was not subjected to the water-punching treatment, and the others were the same as those of example 1.
Comparative example 2
The comparative example is different from example 1 in that the electret base fiber is not added to the raw material fiber, and the rest is the same as example 1.
The hot air nonwoven fabrics obtained in examples 1 to 11 and comparative examples 1 to 2 were subjected to the performance test, and the test results are shown in table 2.
Wherein, the testing standard of the strength is carried out according to GB/T24218.3-2010, the testing standard of the softness is carried out according to GB/T8942-.
TABLE 2
Figure BDA0002924419740000101
The hot air non-woven fabric special for the electrostatic cotton mask prepared by the preparation method has an electrostatic effect, can enhance the filtering effect of the mask, and can ensure that the filtering effect of the mask is better and more durable due to long electrostatic storage time; the mask has good ventilation effect, supports the space inside the mask, reduces the breathing resistance when the mask is worn, and reduces the atomization phenomenon; the comfortable gauze mask has a good fluffy effect, one surface of the comfortable gauze mask is smooth and fluffy, and the other surface of the comfortable gauze mask is fluffy and is applied to a gauze mask product, so that the comfortable feeling of wearing the gauze mask is improved.
The present invention is illustrated by the above-mentioned examples, but the present invention is not limited to the above-mentioned detailed process equipment and process flow, i.e. it is not meant to imply that the present invention must rely on the above-mentioned detailed process equipment and process flow to be practiced. It should be understood by those skilled in the art that any modification of the present invention, equivalent substitutions of the raw materials of the product of the present invention, addition of auxiliary components, selection of specific modes, etc., are within the scope and disclosure of the present invention.
The preferred embodiments of the present invention have been described in detail, however, the present invention is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present invention within the technical idea of the present invention, and these simple modifications are within the protective scope of the present invention.
It should be noted that the various technical features described in the above embodiments can be combined in any suitable manner without contradiction, and the invention is not described in any way for the possible combinations in order to avoid unnecessary repetition.
In addition, any combination of the various embodiments of the present invention is also possible, and the same should be considered as the disclosure of the present invention as long as it does not depart from the spirit of the present invention.

Claims (10)

1. A preparation method of hot air non-woven fabric special for an electrostatic cotton mask is characterized by comprising the following steps: the PE/PP composite fiber with the skin-core structure added with the electret master batch is used as a raw material, and the hot air non-woven fabric special for the electrostatic cotton mask is obtained through feeding, opening, cotton mixing, carding, hot air bonding, cooling, spunlace treatment, drying and electret treatment.
2. The preparation method according to claim 1, wherein the mass of the electret masterbatch is 5-10% of the mass of the PE/PP composite fiber;
preferably, the electret master batch comprises the following components in percentage by mass:
80 to 90 percent of polypropylene
5-10% of graphene
5-10% of inorganic nano material.
3. The preparation method according to claim 1 or 2, wherein the sheath structure of the PE/PP composite fiber is a PE material, and the core structure is a PP material;
preferably, the PE/PP composite fiber has a specification of 2Dx38 mm;
preferably, the inorganic nano material is nano tourmaline powder and/or nano silicon dioxide.
4. The method as claimed in any one of claims 1 to 3, wherein the temperature of the through-air bonding is 145-150 ℃.
5. The method of any one of claims 1-4, wherein the pressure of the hydroentangling process is 25-35 MPa.
6. The method as set forth in one of claims 1 to 5, wherein the temperature of the drying treatment is 110-125 ℃.
7. The method according to any one of claims 1 to 6, wherein the voltage of the electret treatment is 50 to 55 KV.
8. The production method according to any one of claims 1 to 7, wherein the cooling includes air cooling and water cooling;
preferably, the step of ironing is further included between the air cooling and the water cooling;
preferably, the temperature of the ironing is 140-.
9. The hot air non-woven fabric special for the electrostatic cotton mask, which is obtained by the preparation method according to any one of claims 1 to 8.
10. An electrostatic cotton mask prepared by using the hot-air non-woven fabric special for the electrostatic cotton mask according to claim 9.
CN202110127292.5A 2021-01-29 2021-01-29 Hot air non-woven fabric special for electrostatic cotton mask and preparation method thereof Pending CN112941719A (en)

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CN111471238A (en) * 2020-05-14 2020-07-31 无锡得宇新材料有限公司 Preparation method of polypropylene electret master batch
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CN108796823A (en) * 2018-04-17 2018-11-13 华南理工大学 Microcosmic gradient-structure filtering material of efficient low-resistance micro nanometer fiber and preparation method thereof
CN108642595A (en) * 2018-05-07 2018-10-12 济南圣泉集团股份有限公司 A kind of antibacterial thermal insulating mask that antibacterial is meltblown heat-preservation cotton and preparation method thereof and is prepared by it
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Application publication date: 20210611