阅读说明：本技术 一种单面抗酒精，单面抗静电医用sms的开发 (Development of medical SMS with single-sided alcohol resistance and single-sided antistatic performance ) 是由 孙宏宇 宋凯 任振锋 王忠忠 张强 高中心 张哲� 于 2020-12-30 设计创作，主要内容包括：一种单面抗酒精,单面抗静电医用SMS的开发,其特征在于,包括步骤：原料的混合、熔融挤出、牵伸、热轧、上油、烘干、冷却定型。采用本发明的方法制备的单面抗酒精,单面抗静电医用SMS无纺布,根据我国医药行业YY/T 0506.2-2016标准和欧洲BS EN 13795-1:2019标准,抗渗水性满足单点值60cm水柱的要求；具有更高的阻隔和更高的抗渗水性,基本物理性能优秀,且能使其花面保持优异的抗酒精性能,光面有良好的抗静电性能；可以通过直接生产而不通过后整理的方式使SMS无纺布单面具有抗静电,单面具有抗酒精性能；可以提高产能等。(The development of the medical SMS with single-sided alcohol resistance and single-sided antistatic performance is characterized by comprising the following steps: mixing raw materials, melting, extruding, drawing, hot rolling, oiling, drying, cooling and shaping. According to the YY/T0506.2-2016 standard and the European BS EN 13795-1:2019 standard in the pharmaceutical industry of China, the single-sided alcohol-resistant and single-sided antistatic medical SMS non-woven fabric prepared by the method disclosed by the invention has the water impermeability meeting the requirement of a single-point value 60cm water column; the water-based anti-alcohol and anti-static flower surface has higher barrier and water permeability, excellent basic physical properties, excellent anti-alcohol performance of the flower surface and good anti-static performance of the smooth surface; the single surface of the SMS non-woven fabric can be antistatic and has anti-alcohol performance through direct production without post-finishing; the productivity can be improved, etc.)

1. The development of the medical SMS with single-sided alcohol resistance and single-sided antistatic performance is characterized by comprising the following steps: mixing raw materials, melting, extruding, drawing, hot rolling, oiling, drying, cooling and shaping.

2. The development of the single-sided anti-alcohol and single-sided anti-static medical SMS as claimed in claim 1, wherein the raw materials are mixed and uniformly mixed by a screw extruder according to a certain proportion to obtain a raw material mixture.

3. The development of the single-sided alcohol-resistant and single-sided antistatic medical SMS as claimed in claim 2, wherein the raw materials comprise PP spun-bonded material, PP melt-blown material, fluoride, blue masterbatch and antistatic agent, and the mass ratio is 60-74: 25-38: 4.8-6: 0.8-2: 0.3-0.6.

4. The development of a single-sided alcohol-resistant, single-sided antistatic medical SMS according to claim 3, characterized in that the PP spunbond has MFR ranging from 33-39g/10 min; the MFR range of the PP melt-blown material is 1100-1800g/10 min; the fluoride is fluorine acrylate copolymer; the antistatic agent is potassium phosphate.

5. The development of a single-sided alcohol-resistant, single-sided antistatic medical SMS according to claim 1, wherein the melt extrusion is performed, after melting the raw material mixture, the spunbond is quantitatively extruded through a metering pump of a spunbond die, the meltblown is quantitatively extruded through a metering pump of a meltblown die, the temperature of the spunbond die in the melt extrusion is 250 ℃, the temperature of the upper layer of the meltblown die is 265 ℃, and the temperature of the lower layer of the melt die is 260 ℃; the melt extrusion uses two spunbond spinning systems and two meltblown spinning systems, two meltblowing in between.

6. The development of a single-sided alcohol-resistant and single-sided antistatic medical SMS as claimed in claim 1, wherein the drafting is performed by respectively drafting the spun-bonded fiber and the melt-blown fiber, setting high-speed airflow to stably draft the fiber in the drafting process to obtain fine fiber, and obtaining a uniform fiber web through slit adjustment, so as to obtain stronger water-repellent performance and better material air permeability, wherein the fineness of the spun-bonded fiber after drafting is 0.015mm-0.018mm, and the fineness of the melt-blown fiber is 2um-5 um.

7. The development of the medical SMS with the single-sided alcohol resistance and the single-sided antistatic property as claimed in claim 6, wherein the pressure of the spun-bonded wind box is 3000pa, the cold wind temperature is 20 ℃, the upper wind amount is 4500-5000 m3/h, and the lower wind amount is 18000-19000m3/h when the spun-bonded fiber is drafted in the drafting process; when the melt-blown fiber is drafted, the melt-blown hot air quantity is 3000 m3/h, the hot air temperature is 260 ℃, the cooling air temperature is 30 ℃, and the DCD is 160-180 mm.

8. The development of a single-sided alcohol-resistant and single-sided antistatic medical SMS as claimed in claim 1, wherein the hot rolling uses a pattern roll temperature of 153-159 ℃, a smooth roll temperature of 145-149 ℃ and a rolling mill pressure of 85-95 ℃.

9. The development of a single-sided alcohol-resistant and single-sided antistatic medical SMS as claimed in claim 1, wherein the oiling is performed, the non-woven fabric after hot rolling and cooling passes through a liquid tank of an oiling system, the oiling is performed through an oiling roller, the oiling roller is enabled to carry a certain amount of oil, then the non-woven fabric is transferred to the cloth, the cloth surface is provided with a certain oiling amount, the contact area between the cloth and the oiling roller is adjusted by adjusting the height of a press roller during the oiling process, and the rotation speed of the oiling roller and the position of the press roller are adjusted according to different production speeds; the working temperature of the oil in the liquid tank is 30 ℃.

10. The development of the single-sided alcohol-resistant and single-sided antistatic medical SMS as claimed in claim 9, wherein the preparation process of the oil agent in the liquid tank is as follows: placing the antistatic agent in a crude oil tank, controlling the temperature to be 38-50 ℃, stirring for 2-4h, and stirring at 50-80 rpm; putting the pure water into a oil distribution tank, and stirring for 1-3 h; adding crude oil into pure water, controlling the temperature at 35-48 ℃, the stirring speed at 40-80 rpm, and the stirring time at 2-4h, and preparing to obtain the oil agent, wherein the content of the effective components of the oil agent is 2-3%.

Technical Field

The invention relates to the technical field of non-woven fabrics, in particular to development of medical SMS with single-sided alcohol resistance and single-sided antistatic property.

Background

The operating gown can effectively prevent cross infection of germs, is an important barrier for protecting patients and medical staff in the operation process, and is widely applied to disposable medical operating gowns due to the good mechanical property and barrier property of the polypropylene SMS non-woven fabric. The SMS non-woven fabric subjected to the three-resistance treatment (alcohol resistance, blood resistance and static resistance) can effectively isolate cross infection of bacteria and pathogens, is convenient to use, safe and sanitary, and is a main material of high-end medical surgical gowns, but the existing three-resistance materials have alcohol resistance and static resistance through after-treatment. Chinese medicine industry standard YY/T0506.2-2016, European standard BS EN 13795-1:2019 and American standard AAMI PB70:2012 provide specific performance indexes for surgical gowns. YY/T0506.2-2016 and BS EN 13795-1:2019 divide the operating gown into standard performance and high performance according to different operation processes, operation time and liquid bearing size, and indicate the requirements of key areas and non-key areas, wherein the water impermeability of the key areas with the standard performance is more than or equal to 20cm of water column. Although YY/T0505.2-2016 has not been tested and evaluated for alcohol and antistatic properties for the time being, alcohol and antistatic properties are within the desired range.

However, the main method for oiling the polypropylene SMS non-woven fabric in the post-finishing process is dipping oiling, the speed is slow, the required oven configuration is high, and the method cannot be generally matched with the production speed and an online oven, so the post-finishing mode is adopted, the post-finishing process causes complex production process, high production cost and unstable alcohol resistance and antistatic performance. And the existing polypropylene SMS non-woven fabric has the defect of poor water resistance.

Patent CN112030362A discloses a high-barrier polypropylene SMS non-woven fabric and a preparation method thereof, the adopted raw materials comprise PP spinning adhesive, PP melt-blown material, blue color master batch special for spinning and melt-blown, and the mass ratio is 60-74: 25-38: 0.8-2.0: 0.8-2.0. The preparation method comprises a tertiary antibody after-finishing step; the three-resistance after finishing: the adopted oil agent comprises a penetrating agent, an antistatic agent, fluoride and water; the penetrant is low-carbon alcohol, the antistatic agent is phosphate, and the fluoride is fluorine-containing acrylate polymer. The patent has the following defects: the high-barrier polypropylene SMS non-woven fabric has alcohol resistance and antistatic performance through after-finishing, so that the production process is complex and the production cost is high.

Disclosure of Invention

In order to solve the technical problems in the prior art, the invention provides the medical SMS non-woven fabric with the single-sided alcohol resistance and the single-sided antistatic property, so that better barrier, protection, water permeability resistance, alcohol resistance, antistatic property and air permeability are provided, the SMS non-woven fabric can be directly produced without post-finishing, the single side of the SMS non-woven fabric has the antistatic property, and the single side of the SMS non-woven fabric has the alcohol resistance.

In order to solve the technical problems, the technical scheme adopted by the invention is as follows:

the development of the medical SMS with single-sided alcohol resistance and single-sided antistatic performance comprises the following steps: mixing raw materials, melting, extruding, drawing, hot rolling, oiling, drying, cooling and shaping.

Mixing the raw materials, namely uniformly mixing the raw materials according to a certain proportion by a screw extruder to obtain a raw material mixture;

the raw materials comprise a PP spinning binding material, a PP melt-spraying material, a fluoride, blue master batch and an antistatic agent, and the mass ratio is 60-74: 25-38: 4.8-6: 0.8-2: 0.3-0.6;

the blue master batch is a blue pigment with spinnability.

The MFR range of the PP spinning adhesive is 33-39g/10 min;

the MFR range of the PP melt-blown material is 1100-1800g/10 min;

the fluoride is fluorine acrylate copolymer;

the antistatic agent is potassium phosphate.

In the melt extrusion, after the raw material mixture is melted, the spunbond material is quantitatively extruded through a metering pump of a spunbond die head, the meltblown material is quantitatively extruded through a metering pump of a meltblown die head, the temperature of the spunbond die head in the melt extrusion is 250 ℃, the temperature of the upper layer of the meltblown die head is 265 ℃, and the temperature of the lower layer of the melt die head is 260 ℃;

the melt extrusion uses two spunbond spinning systems and two meltblown spinning systems, two meltblowing in between.

The drafting is respectively carried out on the spun-bonded fibers and the melt-blown fibers, high-speed airflow is set in the drafting process to stably draft the fibers to obtain fine denier fibers, and an even fiber net is obtained through slit adjustment, so that the stronger water repellency and better material air permeability are obtained, the fineness of the spun-bonded fibers after the drafting is 0.015-0.018 mm, and the fineness of the melt-blown fibers is 2-5 um.

The pressure of a spunbond air box is 3000pa when the spunbond fibers are drawn in the drawing process, the cold air temperature is 20 ℃, the upper air quantity is 4500-; when the melt-blown fiber is drafted, the melt-blown hot air quantity is 3000 m3/h, the hot air temperature is 260 ℃, the cooling air temperature is 30 ℃, and the DCD (distance from a die head to a mesh belt) is 160mm-180 mm.

The hot rolling is carried out at the temperature of 153-159 ℃ for the pattern roller, 145-149 ℃ for the smooth roller and 85-95 ℃ for the rolling mill.

The non-woven fabrics after the hot rolling cooling, the cistern through the system of oiling, through the oiling roller oiling, make the oiling roller carry certain oil, then transfer to make the cloth cover take certain oil volume on the cloth, at the oiling in-process through the height of adjustment compression roller, adjust the area of contact of cloth and oiling roller, according to the difference of production speed, adjustment oiling roller rotational speed and compression roller position.

The working temperature of the oil in the liquid tank is 30 ℃.

The liquid preparation process of the oil agent in the liquid tank comprises the following steps: placing the antistatic agent in a crude oil tank, controlling the temperature to be 38-50 ℃, stirring for 2-4h, and stirring at 50-80 rpm; putting the pure water into a oil distribution tank, and stirring for 1-3 h; adding crude oil into pure water, controlling the temperature at 35-48 ℃, the stirring speed at 40-80 rpm, and the stirring time at 2-4h, and preparing to obtain the oil agent, wherein the content of the effective components of the oil agent is 2-3%.

The position of the pressing roller in the oiling process is 14-18cm, and the rotating speed of the oil roller is 4-8 rpm.

And drying, namely drying the SMS non-woven fabric with certain liquid amount by hot air in an oven, wherein the temperature of the hot air is 100-120 ℃, the hot air circulation is 75%, the hot air suction is 85%, and the drying time is 5-10 s.

And cooling, shaping, winding and forming the SMS non-woven fabric dried by the oven by a cooling device, wherein the cooling device is used for cooling at room temperature.

Compared with the prior art, the invention has the beneficial effects that:

(1) according to the YY/T0506.2-2016 standard and the European BS EN 13795-1:2019 standard in the pharmaceutical industry of China, the single-sided alcohol-resistant and single-sided antistatic medical SMS non-woven fabric prepared by the method disclosed by the invention has the water impermeability meeting the requirement of a single-point value 60cm water column;

(2) the single-sided anti-alcohol and single-sided antistatic medical SMS non-woven fabric prepared by the method has higher barrier and higher water permeability resistance, has excellent basic physical properties, can keep the flower surface with excellent anti-alcohol performance, and has good antistatic performance on the smooth surface;

(3) the single-sided alcohol-resistant and single-sided antistatic medical SMS non-woven fabric prepared by the method can enable the single-sided SMS non-woven fabric to have antistatic performance and alcohol-resistant performance through direct production without a post-finishing mode;

(4) the medical SMS non-woven fabric with the single-sided alcohol resistance and the single-sided antistatic property, which is prepared by the method, can improve the productivity;

(5) the medical SMS non-woven fabric with the single-sided alcohol resistance and the single-sided antistatic property, which is prepared by the method, has stronger water repellency and better material air permeability.

Detailed Description

In order to more clearly understand the technical features, objects, and effects of the present invention, specific embodiments of the present invention will now be described.

Example 1

The development of the medical SMS with single-sided alcohol resistance and single-sided antistatic performance comprises the following steps: mixing raw materials, melting, extruding, drawing, hot rolling, oiling, drying, cooling and shaping.

Mixing the raw materials, namely uniformly mixing the raw materials according to a certain proportion by a screw extruder to obtain a raw material mixture;

the raw materials comprise a PP spinning binding material, a PP melt-spraying material, a fluoride, blue color master batch and an antistatic agent, and the mass ratio is 72.1:20:5.5:2: 0.4;

the blue master batch is a blue pigment with spinnability.

The MFR range of the PP spinning adhesive is 33-39g/10 min;

the MFR range of the PP melt-blown material is 1100-1800g/10 min;

the fluoride is fluorine acrylate copolymer;

the antistatic agent is potassium phosphate.

In the melt extrusion, after the raw material mixture is melted, the spunbond material is quantitatively extruded through a metering pump of a spunbond die head, the meltblown material is quantitatively extruded through a metering pump of a meltblown die head, the temperature of the spunbond die head in the melt extrusion is 250 ℃, the temperature of the upper layer of the meltblown die head is 265 ℃, and the temperature of the lower layer of the melt die head is 260 ℃;

the melt extrusion uses two spunbond spinning systems and two meltblown spinning systems, two meltblowing in between.

The drafting is respectively carried out on the spun-bonded fibers and the melt-blown fibers, high-speed airflow is set in the drafting process to stably draft the fibers to obtain fine denier fibers, and an even fiber net is obtained through slit adjustment, so that the stronger water repellency and better material air permeability are obtained, the fineness of the spun-bonded fibers after the drafting is 0.015-0.018 mm, and the fineness of the melt-blown fibers is 2-5 um.

The pressure of a spunbond air box is 3000pa when the spunbond fibers are drawn in the drawing process, the temperature of cold air is 20 ℃, the upper air quantity is 4500m3/h, and the lower air quantity is 18000m 3/h; when the melt-blown fiber is drafted, the melt-blown hot air quantity is 3000 m3/h, the hot air temperature is 260 ℃, the cooling air temperature is 30 ℃, and the DCD (distance from a die head to a mesh belt) is 160 mm.

And in the hot rolling, the temperature of a used embossing roll is 153 ℃, the temperature of a smooth roll is 145 ℃, and the pressure of a rolling mill is 85 ℃.

The non-woven fabrics after the hot rolling cooling, the cistern through the system of oiling, through the oiling roller oiling, make the oiling roller carry certain oil, then transfer to make the cloth cover take certain oil volume on the cloth, at the oiling in-process through the height of adjustment compression roller, adjust the area of contact of cloth and oiling roller, according to the difference of production speed, adjustment oiling roller rotational speed and compression roller position.

The working temperature of the oil in the liquid tank is 30 ℃.

The liquid preparation process of the oil agent in the liquid tank comprises the following steps: placing the antistatic agent in a crude oil tank, controlling the temperature to be 38 ℃, stirring for 2 hours and at the stirring speed of 50 rpm; putting the pure water into a oil distribution tank, and stirring for 1 h; adding crude oil into pure water, controlling the temperature at 35 ℃, the stirring speed at 60rpm, and the stirring time at 2h to prepare the oil agent, wherein the content of active ingredients of the oil agent is 2.5%.

The position of the pressure roller in the oiling process is 15cm, and the rotating speed of the oil roller is 4 rpm.

And drying, namely drying the SMS non-woven fabric with certain liquid amount in a hot air oven at the temperature of 101 ℃, the hot air circulation is 75%, the hot air suction is 85%, and the drying time is 8 s.

And cooling, shaping, winding and forming the SMS non-woven fabric dried by the oven by a cooling device, wherein the cooling device is used for cooling at room temperature.

Example 2

The development of the medical SMS with single-sided alcohol resistance and single-sided antistatic performance comprises the following steps: mixing raw materials, melting, extruding, drawing, hot rolling, oiling, drying, cooling and shaping.

Mixing the raw materials, namely uniformly mixing the raw materials according to a certain proportion by a screw extruder to obtain a raw material mixture;

the raw materials comprise PP spinning adhesive, PP melt-blown material, fluoride, blue master batch and antistatic agent, and the mass ratio is 71.6:22:4.0:2: 0.4;

the blue master batch is a blue pigment with spinnability.

The MFR range of the PP spinning adhesive is 33-39g/10 min;

the MFR range of the PP melt-blown material is 1100-1800g/10 min;

the fluoride is fluorine acrylate copolymer;

the antistatic agent is potassium phosphate.

In the melt extrusion, after the raw material mixture is melted, the spunbond material is quantitatively extruded through a metering pump of a spunbond die head, the meltblown material is quantitatively extruded through a metering pump of a meltblown die head, the temperature of the spunbond die head in the melt extrusion is 250 ℃, the temperature of the upper layer of the meltblown die head is 265 ℃, and the temperature of the lower layer of the melt die head is 260 ℃;

the melt extrusion uses two spunbond spinning systems and two meltblown spinning systems, two meltblowing in between.

The drafting is respectively carried out on the spun-bonded fibers and the melt-blown fibers, high-speed airflow is set in the drafting process to stably draft the fibers to obtain fine denier fibers, and an even fiber net is obtained through slit adjustment, so that the stronger water repellency and better material air permeability are obtained, the fineness of the spun-bonded fibers after the drafting is 0.015-0.018 mm, and the fineness of the melt-blown fibers is 2-5 um.

The pressure of a spunbond air box is 3000pa when the spunbond fibers are drawn in the drawing process, the temperature of cold air is 20 ℃, the upper air volume is 4900m3/h, and the lower air volume is 18500m 3/h; when the melt-blown fiber is drafted, the melt-blown hot air quantity is 3000 m3/h, the hot air temperature is 260 ℃, the cooling air temperature is 30 ℃, and the DCD (distance from a die head to a mesh belt) is 170 mm.

The hot rolling is carried out by using a pattern roller with the temperature of 155 ℃, a smooth roller with the temperature of 148 ℃ and a rolling mill with the pressure of 88 ℃.

The non-woven fabrics after the hot rolling cooling, the cistern through the system of oiling, through the oiling roller oiling, make the oiling roller carry certain oil, then transfer to make the cloth cover take certain oil volume on the cloth, at the oiling in-process through the height of adjustment compression roller, adjust the area of contact of cloth and oiling roller, according to the difference of production speed, adjustment oiling roller rotational speed and compression roller position.

The working temperature of the oil in the liquid tank is 30 ℃.

The liquid preparation process of the oil agent in the liquid tank comprises the following steps: placing the antistatic agent in a crude oil tank, controlling the temperature to be 38 ℃, stirring for 2 hours and at the stirring speed of 50 rpm; putting the pure water into a oil distribution tank, and stirring for 1 h; adding crude oil into pure water, controlling the temperature at 35 ℃, the stirring speed at 60rpm, and the stirring time at 2h to prepare the oil agent, wherein the content of active ingredients of the oil agent is 2.5%.

The position of the pressure roller in the oiling process is 15cm, and the rotating speed of the oil roller is 4 rpm.

And drying, namely drying the SMS non-woven fabric with certain liquid amount in a hot air oven at the temperature of 108 ℃, the hot air circulation is 75%, the hot air suction is 85%, and the drying time is 8 s.

And cooling, shaping, winding and forming the SMS non-woven fabric dried by the oven by a cooling device, wherein the cooling device is used for cooling at room temperature.

Example 3

The development of the medical SMS with single-sided alcohol resistance and single-sided antistatic performance comprises the following steps: mixing raw materials, melting, extruding, drawing, hot rolling, oiling, drying, cooling and shaping.

Mixing the raw materials, namely uniformly mixing the raw materials according to a certain proportion by a screw extruder to obtain a raw material mixture;

the raw materials comprise a PP spinning binding material, a PP melt-spraying material, a fluoride, blue master batch and an antistatic agent, and the mass ratio is 72.45:20:5.0:2: 0.55;

the blue master batch is a blue pigment with spinnability.

The MFR range of the PP spinning adhesive is 33-39g/10 min;

the MFR range of the PP melt-blown material is 1100-1800g/10 min;

the fluoride is fluorine acrylate copolymer;

the antistatic agent is potassium phosphate.

In the melt extrusion, after the raw material mixture is melted, the spunbond material is quantitatively extruded through a metering pump of a spunbond die head, the meltblown material is quantitatively extruded through a metering pump of a meltblown die head, the temperature of the spunbond die head in the melt extrusion is 250 ℃, the temperature of the upper layer of the meltblown die head is 265 ℃, and the temperature of the lower layer of the melt die head is 260 ℃;

the melt extrusion uses two spunbond spinning systems and two meltblown spinning systems, two meltblowing in between.

The drafting step is to draft the spun-bonded fiber and the melt-blown fiber respectively, set high-speed airflow to stably draft the fiber in the drafting process to obtain fine denier fiber, and obtain uniform fiber web through slit adjustment, so that stronger water repellency and better material air permeability are obtained, and the fineness of the spun-bonded fiber after drafting is equal to that of the spun-bonded fiber

0.015mm-0.018mm, the fineness of the melt-blown fiber is 2um-5 um.

The pressure of a spunbond air box is 3000pa when the spunbond fibers are drawn in the drawing process, the temperature of cold air is 20 ℃, the upper air volume is 5200m3/h, and the lower air volume is 19000m 3/h; when the melt-blown fiber is drafted, the melt-blown hot air quantity is 3000 m3/h, the hot air temperature is 260 ℃, the cooling air temperature is 30 ℃, and the DCD (distance from a die head to a mesh belt) is 180 mm.

The hot rolling is carried out by using a pattern roller with the temperature of 158 ℃, a smooth roller with the temperature of 150 ℃ and a rolling mill with the pressure of 90 ℃.

The non-woven fabrics after the hot rolling cooling, the cistern through the system of oiling, through the oiling roller oiling, make the oiling roller carry certain oil, then transfer to make the cloth cover take certain oil volume on the cloth, at the oiling in-process through the height of adjustment compression roller, adjust the area of contact of cloth and oiling roller, according to the difference of production speed, adjustment oiling roller rotational speed and compression roller position.

The working temperature of the oil in the liquid tank is 30 ℃.

The liquid preparation process of the oil agent in the liquid tank comprises the following steps: placing the antistatic agent in a crude oil tank, controlling the temperature to be 38 ℃, stirring for 2 hours and at the stirring speed of 50 rpm; putting the pure water into a oil distribution tank, and stirring for 1 h; adding crude oil into pure water, controlling the temperature at 35 ℃, the stirring speed at 60rpm, and the stirring time at 2h to prepare the oil agent, wherein the content of active ingredients of the oil agent is 2.5%.

The position of the pressure roller in the oiling process is 15cm, and the rotating speed of the oil roller is 6 rpm.

And drying, namely drying the SMS non-woven fabric with certain liquid amount in a hot air oven at the temperature of 112 ℃, the hot air circulation is 75%, the hot air suction is 85%, and the drying time is 8 s.

And cooling, shaping, winding and forming the SMS non-woven fabric dried by the oven by a cooling device, wherein the cooling device is used for cooling at room temperature.

Example 4

Comparative example: the development of the single-sided alcohol-resistant and single-sided antistatic medical SMS described in example 1 is adopted, and the difference is that: after hot rolling in example 1, oiling, drying, cooling and setting were performed, followed by winding.

The properties of the single-sided alcohol-resistant, single-sided antistatic medical SMS prepared in examples 1-3 and comparative example were as follows:

all percentages used in the present invention are mass percentages unless otherwise indicated.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.