KR20230041259A - Method of manufacturing textile material for shielding harmful environment and humity - Google Patents

Abstract

The present invention comprises: (i) a fabric pretreatment process which presses and heat treats while passing a fabric between a middle roller (2b) and a upper roller (2a) of a callender roller (2) composed of a bottom roller (2c) rotated by a gear drive system, the middle roller (2b) having a structure in which a cylindrical (barrel type) elastomer injection product is inserted, and the upper roller (2a) which rotates at a linear speed 1.15 to 2.2 times faster than the lower roller (2c) and middle roller (2b) by a gear drive system, followed by rubbing the same; (ii) a water repellent and antibacterial treatment process in which the fabric pretreated as described above is dipped in a water repellent and antibacterial treatment solution containing a C8 or C6 fluorine based water repellent and 25 to 35 g of an antibacterial agent per liter of water, followed by curing the same; (iii) and a high moisture imparting process for forming a dry porous polyurethane resin coating layer. The harmful environment blocking textile material manufactured by the present invention has excellent moisture permeability, allowing sweat emitted from the human body to be discharged to the outside, and has excellent water repellency, thereby effectively blocking droplets containing harmful viruses from penetrating inside.

Description

Method of manufacturing textile material for shielding harmful environment and humity}

The present invention relates to a manufacturing method of a harmful environment blocking textile material with excellent moisture permeability, and specifically, it has excellent moisture permeability and quickly discharges sweat generated from the human body to the outside, so that it is comfortable to wear even when worn for a long time, and has excellent water repellency and splashes Harmful environment blocking fiber with excellent moisture permeability that can effectively prevent penetration into the textile material and can safely protect the human body from droplet transmission by effectively preventing the virus in droplets from penetrating into the human body protective textile material due to its excellent antibacterial properties It is about the manufacturing method of the material.

[0003] As a conventional fiber material for blocking harmful environments, such as a mask material or a medical protective clothing material, a fiber material in which several sheets of nonwoven fabrics are laminated has been widely used.

However, although the above harmful environment blocking fiber material has an effect of blocking fine dust, there is little effect of blocking viruses due to poor water repellency and antibacterial properties, and a mask or medical mask made of the harmful environment blocking fiber material is poor in moisture permeability. When protective clothing is worn for a long time, sweat from the human body is not easily discharged to the outside, so there is a problem that the wear is greatly deteriorated, such as easily getting damp.

In addition, there is also a problem that the conventional harmful environment blocking textile material cannot be reused after washing.

An object of the present invention is a method for manufacturing a harmful environment blocking textile material that can effectively block droplets, effectively sterilize viruses in droplets, has a good feeling of wearing due to good sweat discharge even when worn for a long time, and can be reused after washing. is to provide

In order to solve this problem, in the present invention, (i) the lower roller 2c rotates by the gear drive system, and the lower roller 2c rotates at the same linear speed as the lower roller 2c by frictional force with the lower roller 2c, An intermediate roller (2b) having a structure in which a cylindrical (barrel type) elastomer injection product having a curvature more convex at the center than at both ends is inserted into the roller body and heating so that the temperature difference between the center and both ends is controlled within ±5 ° C and gear driven The middle roller (2b) and the upper roller (2a) of the calender roller (2) composed of the upper roller (2a) rotating at a linear speed 1.15 to 2.2 times faster than the lower roller (2c) and the intermediate roller (2b) by the system ) pre-treating the fabric by pressing and heat-treating while rubbing while passing the fabric through; (ii) Dipping the pretreated fabric as described above in a water repellent and antibacterial treatment solution to which a C8-based or C6-based fluorine-based water repellent and 25 to 35 g of an antibacterial agent per 1 liter of water are added, and then cured to treat water repellency and antibacterial treatment, (iii) A polyurethane resin composition is coated on one surface of the water-repellent and antibacterial-treated fabric as described above, and then dry-dried to form a dry porous polyurethane resin coating layer to prepare a textile material that blocks harmful environments.

The harmful environment-blocking textile material manufactured according to the present invention has excellent moisture permeability, so that sweat emitted from the human body is well discharged to the outside, and excellent water repellency effectively blocks the penetration of droplets containing harmful viruses into the inside, and has antibacterial properties. It is excellent and effectively sterilizes viruses in droplets, and can be reused after washing.

1 is a schematic diagram of a fabric pre-treatment method according to the present invention.
Fig. 2 is a schematic side view of the calender roller 2 shown in Fig. 1;
Figure 3 is a photograph showing the wearing state of harmful environment protective clothing.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

The manufacturing method of a harmful environment blocking textile material having excellent moisture permeability according to the present invention is (i) a lower roller (2c) rotating by a gear drive system, and the frictional force between the lower roller (2c) and the lower roller (2c) Heating so that the temperature difference between the center and both ends is controlled within ±5℃ The middle roller (2b) of the calender roller (2) composed of an upper roller (2a) which is heated and rotates at a linear speed 1.15 to 2.2 times faster than the lower roller (2c) and the intermediate roller (2b) by a gear drive system. ) And the pretreatment process of the fabric by pressing and heat-treating while rubbing while passing the fabric between the upper roller (2a); (ii) a water repellent and antibacterial treatment process in which the pretreated fabric is dipped in a water repellent and antibacterial treatment solution to which a C8-based or C6-based fluorine-based water repellent and an antimicrobial agent of 25 to 35g per 1 liter of water are added and then cured; and (iii) a step of imparting high moisture permeability by coating the polyurethane resin composition on one surface of the water-repellent and antibacterial-treated fabric and drying it to form a dry porous polyurethane resin coating layer.

Specifically, the present invention first rotates at the same linear speed as the lower roller (2c) by the frictional force between the lower roller (2c), which rotates by the gear drive system, and the lower roller (2c), and the central part of the roller body is higher than both ends An intermediate roller (2b) having a structure in which a cylindrical (barrel type) elastic injection molding product having a convex curvature is inserted, and heating is controlled so that the temperature difference between the center and both ends is within ±5 ° C, and the lower roller ( 2c) and the upper roller (2a) rotating at a linear speed 1.15 to 2.2 times faster than the intermediate roller (2b). The fabric is pretreated by pressing and heat treatment while giving.

1 is a process schematic diagram of a fabric pretreatment method according to the present invention, and FIG. 2 is a side schematic diagram of the calender roller 2 used in FIG.

As shown in FIG. 2, the calender roller used in the present invention is (i) a straight upper roller (2a), (ii) a cylindrical type elastomer injection product having a central portion having a more convex curvature than both ends, inserted into the straight roller body It consists of an intermediate roller (2b) and a straight lower roller (2c).

The lower roller 2c and the upper roller 2a are rotated by a gear drive system, and the intermediate roller 2b rotates by frictional force with the lower roller 2c.

Hydraulic pressure, more preferably 80 to 150 kg/cm 2 , is applied to the lower end of the lower roller 2c in the upward direction of the calender roller.

The upper roller (2a) is heated so that the temperature difference between the center and both ends is controlled within ±5 ° C, and the rotational linear speed of the upper roller (2a) is adjusted to 1.15 to 2.2 times the rotational linear speed of the lower roller (2c) It is desirable to do

The speed of the coating fabric passing between the upper roller 2a and the middle roller 2b is adjusted to 50 m/min.

Next, the fabric pretreated as described above is dipped in a water repellent and antibacterial treatment solution to which a C8-based or C6-based fluorine-based water repellent and 25 to 35 g of antibacterial agent per 1 liter of water are added, followed by curing to treat water repellency and antibacterial treatment. .

The antibacterial agent is preferably a product of Sanitized TH-22-27 manufactured by SANITIZED AG.

If the content of the antimicrobial agent is less than 25 g per 1 liter of mole, the antibacterial performance is lowered, and if it exceeds 35g, only the manufacturing cost increases without further improvement in antibacterial performance.

Next, the polyurethane resin composition is coated on one side of the water-repellent and antibacterial-treated fabric as described above, and then dried to form a dry porous polyurethane resin coating layer through a moisture permeation / waterproof treatment process to obtain a textile material for blocking splashes. manufacture

As an example of the implementation of the polyurethane resin composition, 100 parts by weight of a water-in-oil (W / O) emulsion type polyurethane resin, 20 parts by weight of toluene (solvent), 25 parts by weight of methyl ethyl ketone (solvent), 2 parts by weight of hexamethylene diisocyanate A polyurethane resin composition composed of 3 parts by weight of silicone and 60 parts by weight of water may be used.

As an example of dry drying, dry drying is performed by passing a fabric coated with a polyurethane resin composition into a tenter at about 180° C. at a rate of 25 m/min.

The harmful environment-blocking textile material manufactured according to the present invention has excellent moisture permeability, so that sweat emitted from the human body is well discharged to the outside, and excellent water repellency effectively blocks the penetration of droplets containing harmful viruses into the inside, and has antibacterial properties. It is excellent and effectively sterilizes viruses in droplets, and can be reused after washing.

Hereinafter, the present invention will be described in detail through Examples and Comparative Examples.

Example 1

As shown in FIGS. 1 and 2, (i) the lower roller 2c rotates by the gear drive system, and (ii) rotates at the same linear speed as the lower roller 2c by frictional force with the lower roller 2c. And, an intermediate roller (2b) having a structure in which a cylindrical (barrel type) elastomer injection product having a curvature that is more convex at the center than at both ends is inserted into the roller body, and (iii) Heating so that the temperature difference between the center and both ends is controlled within ±5 ° C ( Heating) and using a calender roller (2) composed of an upper roller (2a) that rotates at a linear speed 2.0 times faster than the lower roller (2c) and the middle roller (2b) by a gear drive system, the calender The fabric for compression and heat treatment coating was pretreated while rubbing while passing between the middle roller (2b) and the upper roller (2a) of the roller (2).

At this time, the rotation speed of the upper roller 2a was adjusted to 12 times the rotation speed of the lower roller 2c, and a hydraulic pressure of 90 kg/cm 2 was applied upward to the lower end of the lower roller 2c.

Next, the pretreated fabric as described above is dipped in a water repellent and antibacterial treatment solution to which a C8-based fluorine-based water repellent and 30 g of an antibacterial agent (Sanitized TH-22-27 product) per 1 liter of water are added, and then cured for water repellency and antibacterial treatment did

Next, 100 parts by weight of emulsion type polyurethane resin, 20 parts by weight of toluene, 25 parts by weight of methyl ethyl ketone, 2 parts by weight of hexamethylene diisocyanate (crosslinking agent), 3 parts by weight of silicone on one side of the water-repellent and antibacterial treated fabric as described above A polyurethane resin composition composed of 60 parts by weight of water and 60 parts by weight was coated to form a dry porous polyurethane resin coating layer to prepare a harmful environment blocking fiber material.

Table 1 shows the results of measuring the antibacterial properties and water resistance of the textile material for blocking splashes prepared as described above.

Comparative Example 1

One spunlace nonwoven fabric, one meltblown nonwoven fabric, and one spunbond nonwoven fabric were sequentially laminated and then needle punched to manufacture a harmful environment-blocking fiber material.

Table 1 shows the results of measuring the antibacterial properties and water resistance of the harmful environment blocking textile material prepared as described above.

division Example 1 Comparative Example 1 antibacterial
(bacteriostatic reduction rate%) staphylococcus 99.8 16.2 pneumococci 99.9 12.3 Water pressure (mm/H ₂ O) 10,000 7,000

The antimicrobial activity (bacteriostatic reduction rate) was measured by the antibacterial activity measurement method of Korean Industrial Standards KS K 0693-2001.

Specifically, the bacteriostatic reduction rate was obtained using the initial number of bacteria and the number of bacteria after 18 hours of culture using Staphylococcus aureus and Pneumococcus.

The water resistance was measured by the ISO 811 method.

1: fabric supply roller 2: calender roller
2a: upper roller 2b: middle roller
2c: lower roller 3: take-up roller of calendered fabric
4: Transfer guide roller

Claims (1)

(i) A lower roller (2c) rotated by a gear drive system, which rotates at the same linear speed as the lower roller (2c) by frictional force with the lower roller (2c), and has a curvature that is more convex at the center of the roller body than at both ends The middle roller (2b) having a structure in which a cylindrical (barrel type) elastomer injection molding product is inserted and heating is controlled so that the temperature difference between the center and both ends is within ±5 ° C, and the lower roller (2c) and the middle roller (2c) Compression and heat treatment while passing and rubbing the fabric between the middle roller (2b) and the upper roller (2a) of the calender roller (2) consisting of the upper roller (2a) rotating at a linear speed 1.15 to 2.2 times faster than the roller (2b) Pre-treatment process of the fabric to do;
(ii) a water repellent and antibacterial treatment process in which the pretreated fabric is dipped in a water repellent and antibacterial treatment solution to which a C8-based or C6-based fluorine-based water repellent and an antimicrobial agent of 25 to 35g per 1 liter of water are added and then cured; and
(iii) a high moisture permeability imparting step of coating a polyurethane resin composition on one side of the water-repellent and antibacterial treated fabric and drying it to form a dry porous polyurethane resin coating layer; Method for manufacturing this excellent harmful environment blocking fiber material.

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