KR102184268B1 - Method of manufacturing white knitted fabric with excellent anti-dirt property - Google Patents

Abstract

In the present invention, (i) the lower part rotates while being immersed in the coating liquid bath 7, a permanent magnetic rod 4a is installed inside, a permanent magnetic rod 5a is installed inside the right side, and the surface The coating amount control roller 5, in which the grooves 5b are formed over the entire circumferential direction at regular intervals, is in close contact with the coating roller 4 and (ii) the left side of the coating roller 4 in close contact by magnetic force. When rotated to, a white knitted fabric with excellent antifouling properties is produced by adsorbing and fixing a water repellent and white dye on only one side of both sides of the knitted fabric while passing a knitted fabric with a weight of 10 to 100 g/m2 through the compression rollers (3). Pass between the coating roller 4 and the compression roller 3, and as the coating solution, a coating solution containing a water repellent, a white pigment and a crosslinking agent and having a viscosity of 300 to 800 centipoise (CPS) is used, It is characterized in that the distance between the grooves 5b formed in the coating amount control roller 5 is adjusted to 2 to 5 mm, and the depth and width of the grooves 5b are respectively adjusted to 0.2 to 2 mm.
In the present invention, white dye dyeing and water repellency can be carried out simultaneously and continuously in one process only on one side of a thin paper knitted fabric having a weight per unit area of 10 to 100 g/m2 without generating a large amount of wastewater due to dyeing, so that the white knitted fabric with excellent antifouling properties It can be manufactured with a simple manufacturing process, and environmental pollution caused by dyeing wastewater can be prevented.

Description

Method of manufacturing white knitted fabric with excellent anti-dirt property}

The present invention relates to a method of manufacturing a white knitted fabric having excellent antifouling properties, and more specifically, a white dye having excellent antifouling properties that can continuously perform white dye dyeing and water repellency on only one side of a thin knitted fabric without generating a large amount of dyeing wastewater. It relates to a method of manufacturing a knitted fabric.

As a conventional technology for water-repellent or absorption processing on only one side of the fabric, as shown in Fig. 1 in Korean Patent Registration No. 10-1835735, (i) the lower part rotates while being immersed in the coating liquid bath 7, and The permanent magnet rod (4a) is installed, the permanent magnetic rod (5a) is installed in the right side, and the coating amount control roller (5) is magnetically formed with grooves (5b) formed throughout the circumferential direction at regular intervals on the surface. When the coating roller 4 and (ii) rotate in close contact with the left side of the coating roller 4, the fabric passes through the pressing roller 3 and the fabric in contact with the coating roller 4 Although the method of water-repellent processing or absorption processing is published on only one side, the above-described conventional technology greatly reduces the processing process when processing a single-sided knitted fabric (hereinafter referred to as "thin-paper knitted fabric") with a weight per unit area of 100g/m² or less. After washing the knitted fabric 5 times with the KS K ISO 6630-11 B method, the water repellency measured by the KS K 0590 method was 3rd grade, so there was a problem that the stain resistance after washing was lowered.

An object of the present invention is to provide a method of manufacturing a white knitted fabric that maintains excellent stain resistance even after washing by continuously performing white dye dyeing and water repellency on only one side of a thin paper knitted fabric without generating a large amount of dyeing wastewater in a simple process. Is to do.

In order to achieve such a problem, in the present invention, (i) a part of the lower end rotates while being immersed in the coating liquid bath 7, and a permanent magnetic rod 4a is installed therein, and a permanent magnetic rod ( The coating rollers 4 and (ii) the coating rollers 5 in which 5a) are installed and the coating amount control rollers 5 in which grooves 5b are formed throughout the circumferential direction at regular intervals are in close contact with each other by magnetic force. When rotating in close contact with the left side of 4), a white knitted fabric with excellent antifouling properties by adsorbing and fixing a water repellent and white dye on only one of both sides of the knitted fabric while passing a knitted fabric with a weight of 10 to 100 g/㎡ between the compression rollers (3). When manufacturing, the knitted fabric is passed between the coating roller 4 and the compression roller 3 in a state of no tension, and the coating liquid includes a water repellent, a white pigment and a crosslinking agent, and has a viscosity of 300 to 800 centipoise. (CPS) is used, and the distance between the grooves 5b formed in the coating amount control roller 5 is adjusted to 2 to 5 mm, and the depth and width of the grooves 5b are respectively 0.2 to 2 mm. Adjust it with.

In the present invention, white dye dyeing and water repellency can be carried out simultaneously and continuously in one process only on one side of a thin paper knitted fabric having a weight per unit area of 10 to 100 g/m2 without generating a large amount of wastewater due to dyeing, so that the white knitted fabric with excellent antifouling properties It can be manufactured with a simple manufacturing process, and environmental pollution caused by dyeing wastewater can be prevented.

1 is a schematic diagram of the process of the present invention.
Figure 2 is a front view of the coating amount control roller 5 of Figure 1;

Hereinafter, the present invention will be described in detail through the accompanying drawings.

In the present invention, as shown in FIGS. 1 and 2, (i) a part of the lower end rotates while being immersed in the coating liquid bath 7, and a permanent magnet rod 4a is installed inside, and a permanent magnet inside the right side The coating roller (4) and (ii) the above coating in which the rod (5a) is installed and the coating amount control roller (5) in which the grooves (5b) are formed over the entire circumferential direction at regular intervals is in close contact by magnetic force. When rotating in close contact with the left side of the roller (4), while passing a knitted fabric with a weight of 10 to 100 g/m2 between the compression rollers (3), the water repellent and white dye are adsorbed and fixed to only one of the both sides of the knitted fabric. When manufacturing a white knitted fabric, the knitted fabric is passed between the coating roller 4 and the compression roller 3 without tension, and the coating liquid includes a water repellent, a white pigment and a crosslinking agent, and has a viscosity of 300 to 800 cm. Using a coating liquid of poise (CPS), adjusting the distance between the grooves (5b) formed in the coating amount control roller 5 to 2 ~ 5mm, the depth and width of the grooves (5b) 0.2 ~, respectively It is characterized by adjusting to 2mm.

Specifically, in the present invention, (i) a part of the lower end rotates while being immersed in the coating liquid bath 7, a permanent magnetic rod 4a is installed inside, and a permanent magnetic rod 5a is installed inside the right side. The coating roller (4) and (ii) the coating roller (4) in which the coating amount control roller (5), in which grooves (5b) are formed over the entire circumferential direction at regular intervals, are in close contact with each other by magnetic force, and When rotating in close contact with the press roller 3, a water repellent and a white dye are adsorbed and fixed only on one side of both sides of the knitted fabric while passing a knitted fabric having a weight of 10 to 100 g/m 2 between the pressing rollers 3 to produce a white knitted fabric with excellent antifouling properties.

At this time, in the present invention, when passing the knitted fabric between the coating roller 4 and the pressing roller 3, a tension control device 2 is used to adjust the knitted fabric to become a tensionless state.

The tension control device 2 may be composed of a plurality of tension rollers.

In addition, in the present invention, as the coating liquid, a low viscosity coating liquid containing a water repellent, a white pigment and a crosslinking agent and having a viscosity of 300 to 800 centipoise is used.

When the viscosity of the coating liquid is less than 300 centipoise, it becomes difficult to apply the coating liquid to the knitted fabric, and when the viscosity exceeds 800 centipoise, the touch and drape properties of the knitted fabric are deteriorated.

In addition, in the present invention, the distance between the grooves 5b formed in the coating amount control roller 5 is adjusted to 2 to 5 mm, the depth of the grooves 5b is adjusted to 0.2 to 2 mm, and the grooves 5b ) Width is adjusted to 0.2~2㎜.

If the spacing between the grooves 5b is less than 2 mm, too much of the coating liquid is applied to the knitted fabric to reduce touch, and if it exceeds 5 mm, too little of the coating liquid is applied to the knitted fabric, resulting in deterioration in water repellency or water absorption.

If the depth and width of the concave groove 5b are less than 0.2 mm, too little coating liquid is applied to the knitted fabric to reduce water repellency or water absorption, and if it exceeds 2 mm, too much coating liquid is applied to the knitted fabric, resulting in reduced touch.

The content of the water repellent constituting the coating liquid is 4 to 6% by weight based on the weight of the knitted fabric, and the water repellent is preferably a C-6-based water repellent.

It is preferable that the water repellent and white dye adsorbed on one side of the knitted fabric are heat-treated at 160 to 180° C. for 60 to 90 seconds to be fixed.

The white knitted fabric manufactured by the present invention has a water-repellent layer formed on one side, and is washed 20 times with the KS K 6630-11 B method, and the water repellency measured by the KS K 0590 method is 5th grade.

In the present invention, white dye dyeing and water repellency can be carried out simultaneously and continuously in one process only on one side of a thin paper knitted fabric having a weight per unit area of 10 to 100 g/m2 without generating a large amount of wastewater due to dyeing, so that the white knitted fabric with excellent antifouling properties It can be manufactured with a simple manufacturing process, and environmental pollution caused by dyeing wastewater can be prevented.

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

However, the scope of protection of the present invention should not be construed to be limited only to the following examples.

Example 1

A knitted fabric having a weight per unit area of 80 g/m2 is adjusted to a non-tensile state while passing through the tension control device 2 as shown in FIG. 1, and then the non-tensile knitted fabric (i) is partially covered with a coating liquid bath (7). ), rotates in a state of being immersed in, a permanent magnetic rod (4a) is installed inside, a permanent magnetic rod (5a) is installed inside the right side, and grooves (5b) are formed throughout the circumferential direction at regular intervals on the surface. When the applied amount control roller 5 rotates in close contact with the coating roller 4 and (ii) the left side of the coating roller 4, which is in close contact by magnetic force, it passes through the pressing roller 3 and one side of the knitted fabric Only white dye water repellent was adsorbed and fixed to prepare an antifouling processed white knitted fabric.

At this time, as the coating solution, a coating solution having a viscosity of 350 centipoise including a water repellent, a white pigment and a crosslinking agent was used.

In addition, the spacing of the grooves 5b formed on the coating amount control roller 5 was adjusted to 2.5 mm, the depth of the groove was adjusted to 0.5 mm, and the width of the groove was adjusted to 0.5 mm.

The results of measuring the water repellency before washing of the prepared white knitted fabric and the water repellency after washing are shown in Table 1.

Example 2

A knitted fabric having a weight per unit area of 35 g/m2 is adjusted to a non-tensile state while passing through the tension control device 2 as shown in FIG. 1, and then the non-tensioned knitted fabric (i) is partially covered with a coating liquid bath (7). ), rotates in a state of being immersed in, a permanent magnetic rod (4a) is installed inside, a permanent magnetic rod (5a) is installed inside the right side, and grooves (5b) are formed throughout the circumferential direction at regular intervals on the surface. When the applied amount control roller 5 rotates in close contact with the coating roller 4 and (ii) the left side of the coating roller 4, which is in close contact by magnetic force, it passes through the pressing roller 3 and one side of the knitted fabric Only white dye water repellent was adsorbed and fixed to prepare an antifouling processed white knitted fabric.

At this time, a coating solution having a viscosity of 400 centipoise including a water repellent, a white pigment, and a crosslinking agent was used as the coating solution.

In addition, the spacing of the grooves 5b formed in the coating amount control roller 5 was adjusted to 3.5 mm, the depth of the groove was adjusted to 1.0 mm, and the width of the groove was adjusted to 1.0 mm.

The results of measuring the water repellency before washing of the prepared white knitted fabric and the water repellency after washing are shown in Table 1.

Comparative Example 1

A knitted fabric having a weight per unit area of 50 g/m2 is adjusted to a non-tension state while passing through the tension control device 2 as shown in FIG. 1, and then the non-tensioned knitted fabric (i) is partially covered with a coating liquid bath (7). ), rotates in a state of being immersed in, a permanent magnetic rod (4a) is installed inside, a permanent magnetic rod (5a) is installed inside the right side, and grooves (5b) are formed throughout the circumferential direction at regular intervals on the surface. When the applied amount control roller 5 rotates in close contact with the coating roller 4 and (ii) the left side of the coating roller 4, which is in close contact by magnetic force, it passes through the pressing roller 3 and one side of the knitted fabric Only white dye water repellent was adsorbed and fixed to prepare an antifouling processed white knitted fabric.

At this time, as the coating solution, a coating solution having a viscosity of 100 centipoise including a water repellent, a white pigment, and a crosslinking agent was used.

In addition, the spacing of the grooves 5b formed on the coating amount control roller 5 was adjusted to 6 mm, the depth of the groove was adjusted to 0.1 mm, and the width of the groove was adjusted to 0.1 mm.

The results of measuring the water repellency before washing of the prepared white knitted fabric and the water repellency after washing are shown in Table 1.

Comparative Example 2

A knitted fabric having a weight per unit area of 80 g/m2 is adjusted to a non-tensile state while passing through the tension control device 2 as shown in FIG. 1, and then the non-tensile knitted fabric (i) is partially covered with a coating liquid bath (7). ), rotates in a state of being immersed in, a permanent magnetic rod (4a) is installed inside, a permanent magnetic rod (5a) is installed inside the right side, and grooves (5b) are formed throughout the circumferential direction at regular intervals on the surface. When the applied amount control roller 5 rotates in close contact with the coating roller 4 and (ii) the left side of the coating roller 4, which is in close contact by magnetic force, it passes through the pressing roller 3 and one side of the knitted fabric Only white dye water repellent was adsorbed and fixed to prepare an antifouling processed white knitted fabric.

In this case, as the coating solution, a coating solution having a viscosity of 1,000 centipoise including a water repellent, a white pigment, and a crosslinking agent was used.

In addition, the spacing of the grooves 5b formed on the coating amount control roller 5 was adjusted to 1.5 mm, the depth of the groove was adjusted to 3 mm, and the width of the groove was adjusted to 3 mm.

The results of measuring the water repellency before washing of the prepared white knitted fabric and the water repellency after washing are shown in Table 1.

division Example 1 Example 2 Comparative Example 1 Comparative Example 2 Water repellency before washing Level 5 Level 5 Level 4 Level 5 Water repellency after washing 20 times Level 5 Level 5 Level 2 Level 3

Water repellency was measured by the KS K 0590 method, and washing conditions were performed by the KS K ISO 6630-11 B method.

1: knitting material supply roller 2: tension control device
3: crimping roller 4: application roller
4a: Permanent magnet rod installed inside the coating roller 4
5: Application amount control roller
5a: Permanent magnet rod installed inside the coating amount control roller (5)
6: Support member of the coating amount control roller 5
6a: Permanent magnet rod installed inside the support member 6 of the roller for controlling the amount of application
7: coating liquid bath
8: drying device
9: winding roller of processed knitted fabric

Claims (3)

(I) The lower part rotates while being immersed in the coating liquid bath (7), a permanent magnetic rod (4a) is installed inside, a permanent magnetic rod (5a) is installed inside the right side, and the surface is at regular intervals. When the coating amount control roller 5 with concave grooves 5b formed throughout the circumferential direction rotates in close contact with the coating roller 4 and (ii) the left side of the coating roller 4 in close contact by magnetic force In producing a white knitted fabric having excellent antifouling properties by adsorbing and fixing a water repellent and white dye on only one of both sides of the knitted fabric while passing a knitted fabric with a weight of 10 to 100 g/m2 between the pressing rollers 3,
The knitted fabric is passed between the coating roller 4 and the compression roller 3 in a state of no tension, and the coating liquid includes a water repellent, a white pigment, and a crosslinking agent, and has a viscosity of 300 to 800 centipoise (CPS). Using a liquid, adjusting the spacing between the grooves 5b formed in the coating amount control roller 5 to 2 to 5 mm, and adjusting the depth and width of the grooves 5b to 0.2 to 2 mm, respectively, It has excellent antifouling properties, characterized in that the water repellent content constituting the coating solution is adjusted to 4 to 6% by weight relative to the weight of the knitted fabric, and the water repellent and white dye adsorbed on the fabric are heat-treated at 160 to 180°C for 60 to 90 seconds to fix it. Method of making white knitted fabric. delete delete

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