KR101955243B1 - Mehtod for manufacturing silicon synthetic leather and silicon synthetic leather manufactured by the same - Google Patents

Abstract

The present invention relates to a method for manufacturing silicone synthetic leather which comprise: a step (a) of forming a silicone layer for slipping on a release paper with embossing for slipping formed thereon; a step (b) of forming an additional silicone layer on the silicone layer for slipping; a step (c) of forming an adhesive silicone layer on the additional silicone layer; and a step (d) of fabricating silicone synthetic leather by bonding the fabric to the adhesive silicone layer. Accordingly, the silicone synthetic leather is advantageous in that harmful components are not used during a manufacturing process, thereby being environmentally friendly, polysiloxanes are included as a main component, thereby exhibiting excellent hydrolysis resistance, heat resistance, cold resistance, waterproofness, insulation properties, restorability, rebound elasticity, elongation and antibacterial properties, and a surface of the silicone synthetic leather is not sticky and can be added with slipping properties.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a method for manufacturing a silicone synthetic leather, and a silicone synthetic leather produced by the method. BACKGROUND ART < RTI ID = 0.0 >

The present invention relates to a process for producing a silicone synthetic leather and a silicone synthetic leather produced thereby, and more particularly, to a process for producing a silicone synthetic leather which exhibits environmental friendliness, temperature stability, slip resistance, And to silicone synthetic leather produced accordingly.

Conventionally, polyurethane has been mainly used as a coating material or impregnation material in the production of synthetic leather. This is because the excellent elasticity and physical properties of polyurethane are suitable for synthetic leather materials. General polyurethane synthetic leather is produced by polymerizing 20 to 80 parts by weight of a solid component obtained by polymerizing an urethane raw material polyol, chain extender and isocyanate in an organic solvent such as dimethylformamide or methyl ethyl ketone, and having a viscosity of 50,000 to 150,000 cps / 25 ° C polyurethane is used as impregnation material and coating material to produce synthetic leather, and there are dry method and wet method.

In the dry method, polyurethane is used as a coating layer and an adhesive layer, and a coating liquid containing polyurethane, dimethylformamide, methyl ethyl ketone and pigment in an appropriate ratio is coated at least once on the release paper, (A fabric, a non-woven fabric, or other fabric) is coated thereon by coating a coating solution prepared by blending a polyurethane adhesive, a curing agent, a curing accelerator, dimethylformamide and methyl ethyl ketone in an appropriate ratio, After the adhesive is sufficiently cured, the release paper is peeled off to produce a synthetic leather.

In the wet method, a fabric (nonwoven fabric, fabric) is impregnated with an impregnation solution containing an appropriate ratio of polyurethane, dimethylformamide and pigment, and then the impregnated fabric is coagulated in a coagulation bath in which water and dimethylformamide are mixed, Urethane, dimethylformamide, and pigment in an appropriate ratio is coated on a fabric impregnated with polyurethane, followed by coagulation in a coagulation bath in which water and dimethylformamide are mixed, drying in a water bath and a dryer, Synthetic leather is manufactured through post-processing (embossing, buffing, heat treatment, treatment, etc.).

However, the method for producing synthetic leather using polyurethane is that an organic solvent such as dimethylformamide or methyl ethyl ketone is used, the synthetic leather is hardened when used in low temperature fat due to the change of flexibility according to temperature, and when used in high temperature fat The polyurethane is thermally decomposed at a temperature of 120 ° C or higher, so that it is restricted in the field of use at a high temperature and is poor in the hydrolysis resistance to water, In case of color, it was easily contaminated, and washing was frequently required.

In particular, since the organic solvent is used in the method of producing the synthetic leather using the polyurethane, there are problems in the working environment due to the use of the organic solvent and environmental problems due to the organic solvent remaining in the finished synthetic leather product, The demand for products which are not harmful in the production of synthetic leather is increasing.

Korean Patent Publication No. 10-2018-0075904 Korean Patent Registration No. 10-1381914

An object of the present invention is to provide a process for producing a polyurethane foam which is environmentally friendly since it does not use harmful components in the process and which is excellent in hydrolysis resistance, heat resistance, cold resistance, waterproofness, insulation, restorability, rebound resilience, elongation and antibacterial property, By using slip embossing, it has a surface with smooth slip and pattern formed on the surface. It also eliminates stickiness, which is a disadvantage of silicon, and also laminates a plurality of silicon layers of different colors to enhance aesthetics, And to provide a silicone synthetic leather produced by the method.

According to an aspect of the present invention,

(a) forming a slip silicon layer on a release paper on which a slip embossing is formed;

(b) forming an addition silicon layer on the slip silicon layer;

(c) forming a spotting silicon layer on the additional silicon layer; And

(d) fabricating the silicone synthetic leather by dispersing the fabric in the spot-worn silicone layer.

Wherein the slip silicon layer of step (a) is selected from the group consisting of hydrazine silane, alcoxy silane, enoxy silane, hydroxyl dimethyl siloxane, hexamethyl disiloxane ), A first coating liquid containing a pigment, a filler and a catalyst on the release paper.

The first coating liquid may contain,

With respect to 100 parts by weight of hydrazine silane,

10 to 70 parts by weight of an alkoxy silane;

50 to 110 parts by weight of enoxy silane;

50 to 110 parts by weight of hydroxyl dimethyl siloxane;

30 to 90 parts by weight of hexamethyl disiloxane;

1 to 50 parts by weight of a pigment;

1 to 50 parts by weight of a filler; And

0.001 to 0.1 part by weight of a catalyst.

The catalyst may be any one selected from platinum, chloroplatinic acid, alcohol-modified chloroplatinic acid, chloroplatinic acid-olefin complex, chloroplatinic acid-alkenylsiloxane complex, and chloroplatinic acid-divinyltetramethyldisiloxane complex.

After the application of the first coating liquid in step (a), drying and curing can be performed in a heater which emits far-infrared rays having a wavelength of 3 to 20 mu m.

Wherein the additional silicon layer of step (b) is selected from the group consisting of hydrazine silane, enoxy silane, amide silane, octamethyl cyclotetrasiloxane, octamethyl trisiloxane ), Polydimethyl siloxane, a pigment, a filler, and a catalyst on the slip silicon layer.

The second coating liquid may contain,

With respect to 100 parts by weight of hydrazine silane,

10 to 60 parts by weight of enoxy silane;

10 to 60 parts by weight of an amide silane;

10 to 60 parts by weight of octamethylcyclotetrasiloxane;

1 to 45 parts by weight of octamethyltrisiloxane;

15 to 75 parts by weight of polydimethyl siloxane;

1 to 45 parts by weight of a pigment;

10 to 60 parts by weight of a filler; And

0.001 to 0.1 part by weight of a catalyst.

After the application of the second coating liquid in step (b), drying and curing may be performed in a heater which emits far-infrared rays having a wavelength of 3 to 20 mu m.

Wherein the point-worn silicon layer of step (c) is selected from the group consisting of hydrazine silane, oxime silane, aminoxy silane, hydroxyl dimethyl siloxane, octamethylcyclotetrasiloxane octamethyl cyclotetrasiloxane, decamethyl tetrasiloxane, a pigment, a filler, and a catalyst on the slip silicon layer.

The third coating liquid may contain,

With respect to 100 parts by weight of hydrazine silane,

70 to 130 parts by weight of oxime silane;

250 to 350 parts by weight of aminoxy silane;

70 to 130 parts by weight of hydroxyl dimethyl siloxane;

170 to 230 parts by weight of octamethylcyclotetrasiloxane;

70 to 130 parts by weight of decamethyl tetrasiloxane;

1 to 35 parts by weight of pigment;

1 to 30 parts by weight of a filler; And

0.001 to 0.1 part by weight of a catalyst.

In step (d), after the dipping, the third coating solution may be dried and cured in a heater which emits far-infrared rays having a wavelength of 3 to 20 탆.

After step (d)

(e) removing the release paper on which the slip embossing is formed in the silicone synthetic leather.

After step (e)

(f) attaching a protective film on the slip silicon layer from which the release liner has been removed.

According to another aspect of the present invention,

A silicone synthetic leather produced according to the above-described manufacturing method is provided.

The silicone synthetic leather according to the present invention is environmentally friendly because it does not use a harmful component at the time of production, and has excellent effects of hydrolysis resistance, heat resistance, cold resistance, waterproofness, insulation, restorability, rebound resilience, elongation and antimicrobial resistance based on polysiloxanes.

In addition, a silicon layer is formed on a release paper for high temperature in which a surface of a silicone synthetic leather is formed by embossing for slip, thereby forming a smooth surface and a pattern on a release paper to form a patterned surface, A plurality of silicon layers having different colors can be laminated by different pigment blending so as to enhance aesthetics and the side to which the fabric is adhered is provided with an adhesive force so that the fabric can be easily mixed with the fabric .

Fig. 1 is a flowchart sequentially showing a method for producing a silicone synthetic leather according to the present invention.
Figure 2 is a cross-sectional view of the silicone synthetic leather of the present invention before the embossed release paper is removed.
Fig. 3 is a cross-sectional view of the silicone synthetic leather of the present invention after the protective film is attached. Fig.
4 is a view schematically showing a silicon synthetic leather manufacturing apparatus used for manufacturing the silicone synthetic leather of the present invention.
5 is a view showing a first silicon forming unit of a silicon synthetic leather manufacturing apparatus.
6 is an enlarged view showing the first silicone application unit of the silicon synthetic leather manufacturing apparatus.
7 is a view showing a second silicon forming unit of a silicon synthetic leather manufacturing apparatus.
8 is an enlarged view showing a second silicone application unit of the silicon synthetic leather manufacturing apparatus.
Fig. 9 is a view showing a fusing unit of a silicon synthetic leather manufacturing apparatus. Fig.
10 is an enlarged view showing a third silicon application unit of the silicon synthetic leather manufacturing apparatus.
Fig. 11 is an enlarged view showing a composite portion of a silicon synthetic leather manufacturing apparatus. Fig.
12 is a view showing a protective film attaching unit of a silicon synthetic leather manufacturing apparatus.

In the following, various aspects and various embodiments of the present invention will be described in more detail.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention.

However, the following description does not limit the present invention to specific embodiments. In the following description of the present invention, detailed description of related arts will be omitted if it is determined that the gist of the present invention may be blurred .

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In the present application, the terms "comprises ", or" having ", and the like, specify that the presence of stated features, integers, steps, operations, elements, or combinations thereof, But do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, or combinations thereof.

Hereinafter, the present invention will be described in detail with reference to the preferred embodiments of the present invention with reference to the accompanying drawings. Like reference symbols in the drawings denote like elements.

FIG. 2 is a cross-sectional view of the silicone synthetic leather of the present invention before the embossed release paper is removed. FIG. 3 is a view showing a protective film of the silicone synthetic leather of the present invention Fig. 4 is a view schematically showing a silicon synthetic leather manufacturing apparatus used for manufacturing the silicon synthetic leather of the present invention, FIG. 5 is a view showing a first silicon forming unit, and FIG. 6 is a view showing a first silicon applying unit 8 is a magnified view showing a second silicon applying unit, FIG. 9 is a view showing a merging unit, and FIG. 10 is an enlarged view showing a third silicon applying unit. FIG. Fig. 11 is an enlarged view showing the assembling section according to the present invention, and Fig. 12 is a view showing a protective film attaching unit.

Referring to FIG. 4, the silicon synthetic leather manufacturing apparatus 100 includes a first silicon layer forming unit 200 for forming a slip silicon layer 20 on a release paper 10 on which an embossing E for slipping is formed, At least one second silicon layer forming unit (300) arranged inline with the one silicon layer forming unit (200) to form an additional silicon layer (30) in the slip silicon layer (20) A spooling unit 400 arranged inline with the unit 300 and forming a spotting silicon layer 40 on the outermost silicon layer 30 for addition and a fabric 50 on the spotting silicon layer 40, A protection film attaching unit 500 arranged inline with the spooling unit 400 to peel the release paper 10 from the slip silicon layer 20 and attach the protective film 60 to the slip silicon layer 20, .

Hereinafter, a method of manufacturing the silicone synthetic leather of the present invention will be described with reference to FIGS. 1 to 12. FIG.

First, slip )for Embossing  Formed Release paper  To form a slip silicon layer (step a).

The first silicon layer forming unit 200 serves to form the slip silicon layer 20 on the release paper 10 on which the slip embossing E is formed. The release paper 10 is resistant to high temperatures and has a slippery surface, and an embossing (E) pattern having various sizes is formed on the surface of the release paper 10.

The silicon layer for slipping may be formed by a combination of a hydrazine silane, an alkoxy silane, an enoxy silane, a hydroxyl dimethyl siloxane, hexamethyl disiloxane, a pigment, Can be formed by applying a first coating liquid containing a catalyst on the release paper 10.

The hydrazine silane may include a compound represented by the following formula (1).

[Chemical Formula 1]

Wherein the first coating liquid comprises 10 to 70 parts by weight of an alcoxy silane relative to 100 parts by weight of a hydrazine silane; 50 to 110 parts by weight of enoxy silane; 50 to 110 parts by weight of hydroxyl dimethyl siloxane; 30 to 90 parts by weight of hexamethyl disiloxane; 1 to 50 parts by weight of a pigment; 1 to 50 parts by weight of a filler; And 0.001 to 0.1 part by weight of the catalyst.

More preferably, the first coating liquid contains 20 to 60 parts by weight of an alcoxy silane relative to 100 parts by weight of hydrazine silane; 60 to 100 parts by weight of enoxy silane; 60 to 100 parts by weight of hydroxyl dimethyl siloxane; 40 to 80 parts by weight of hexamethyl disiloxane; 10 to 40 parts by weight of a pigment; 10 to 40 parts by weight of a filler; And 0.001 to 0.1 part by weight of a catalyst.

Even more preferably, the first coating liquid comprises 30 to 50 parts by weight of an alcoxy silane relative to 100 parts by weight of hydrazine silane; 70 to 90 parts by weight of enoxy silane; 70 to 90 parts by weight of hydroxyl dimethyl siloxane; 50 to 70 parts by weight of hexamethyl disiloxane; 20 to 30 parts by weight of pigment; 20 to 30 parts by weight of a filler; And 0.001 to 0.1 part by weight of a catalyst.

The catalyst may be platinum, chloroplatinic acid, alcohol-modified chloroplatinic acid, chloroplatinic acid-olefin complex, chloroplatinic acid-alkenylsiloxane complex, chloroplatinic acid-divinyltetramethyldisiloxane complex and the like, It does not. In addition, the catalyst mentioned below is the same as the above-mentioned catalyst.

The formation of the slip silicon layer is performed in the first silicon layer formation unit 200. [ 5 and 6, the first silicon layer forming unit 200 includes a first aligning portion 210 for transferring and aligning the release sheet 10 on which the embossing E for slipping is formed, A first silicon applying unit 230 for forming a slip silicon layer 20 by coating the first coating liquid on the surface of the release paper 10 on which the slip embossing E is formed, And a first drying chamber 250 for drying the slip silicone layer 20 applied to the release paper 10 inline with the silicone application portion 230.

In order to apply the first coating liquid to the surface of the release paper 10 on which the embossing E for slip is formed, the first knife lifting and descending part 233 may be controlled in the present embodiment so as to be arranged long in the width direction of the release paper 10 The distance between the surface of the release paper 10 and the end of the first knife 231 is adjusted by raising and lowering the first knife 231 at the upper portion of the release paper 10, The thickness of the layer 20 is adjusted.

In this embodiment, the slip silicon layer 20 is preferably applied to the surface of the release paper 10 so as to have a thickness of 0.2 to 1 mm, but the scope of the present invention is not limited thereto. The first knife 231 allows the slip silicon layer 20 to be uniformly formed on the surface of the release paper 10 while the embossed pattern formed on the surface of the release paper 10 on which the slip embossing E is formed is damaged Which is located at a height that prevents it. And the slip silicon layer 20 may be formed with an embossing pattern having various sizes on the surface by embossing E formed on the release paper 10.

The first drying chamber 250 serves to dry and cure the slip silicone layer 20 applied to the surface of the release paper 10.

The first drying chamber 250 includes a first body portion 251 having an inlet and an outlet, a plurality of first ceramic far infrared heaters 253 provided in the first body portion 251, A first heater fixing plate 255 to which the far infrared ray heater 253 is fixed, a first elevating portion 257 connected to the first heater fixing plate 255 to elevate the first heater fixing plate 255 in the height direction, And a first exhaust duct 259 provided at an upper portion of the first heater fixing plate 255.

Infrared rays are emitted by the first ceramic far infrared ray heater 253 to dry and cure the slip silicon layer 20 to adjust the wavelength of the far infrared rays emitted from the far infrared ray 3 to 20 占 퐉, Various facilities provided inside the first main body portion 251 can be heated without being heated.

This is because the silicone rubber has a peak of the absorption spectrum in the range of 7 to 15 mu m and the other material does not have the absorption spectrum in the far infrared ray wavelength range. Therefore, when the far infrared rays are emitted, only the slip silicon layer 20 can be selectively heated, The internal equipment of the portion 251 is not heated.

Next, an addition silicon layer is formed on the slip silicon layer (step b).

The additive silicon layer may be formed of at least one selected from the group consisting of hydrazine silane, enoxy silane, amide silane, octamethyl cyclotetrasiloxane, octamethyl trisiloxane, a second coating liquid containing polydimethyl siloxane, a pigment, a filler and a catalyst on the silicon layer for slip.

The second coating liquid is prepared by mixing 10 to 60 parts by weight of enoxy silane with respect to 100 parts by weight of hydrazine silane; 10 to 60 parts by weight of an amide silane; 10 to 60 parts by weight of octamethylcyclotetrasiloxane; 1 to 45 parts by weight of octamethyltrisiloxane; 15 to 75 parts by weight of polydimethyl siloxane; 1 to 45 parts by weight of a pigment; 10 to 60 parts by weight of a filler; And 0.001 to 0.1 part by weight of the catalyst.

More preferably, the second coating liquid contains 20 to 50 parts by weight of enoxy silane per 100 parts by weight of hydrazine silane; 20 to 50 parts by weight of amide silane; 20 to 50 parts by weight of octamethylcyclotetrasiloxane; 5 to 35 parts by weight of octamethyl trisiloxane; 25 to 65 parts by weight of polydimethyl siloxane; 10 to 35 parts by weight of a pigment; 20 to 50 parts by weight of a filler; And 0.001 to 0.1 part by weight of a catalyst.

Still more preferably, the second coating liquid comprises 30 to 40 parts by weight of enoxy silane relative to 100 parts by weight of hydrazine silane; 30 to 40 parts by weight of amide silane; 30 to 40 parts by weight of octamethylcyclotetrasiloxane; 15 to 25 parts by weight of octamethyltrisiloxane; 35 to 55 parts by weight of polydimethyl siloxane; 20 to 25 parts by weight of pigment; 30 to 40 parts by weight of a filler; And 0.001 to 0.1 part by weight of a catalyst.

The addition silicon layer formation can be performed in the second silicon formation unit 300. [

7 and 8, the second silicon forming unit 300 includes a second aligning part 310 for transferring and aligning the release paper 10 on which the slip silicon layer 20 is formed, 310 for forming the additional silicon layer 30 by applying a second coating liquid containing liquid silicone rubber to the slip silicone layer 20 formed on the release paper 10 to form a second silicone coating layer 330 And a second drying chamber 350 for drying the additional silicon layer 30 applied to the slip silicon layer 20 so as to be inline with the second silicon application portion 330.

In order to apply the second coating liquid to the surface of the slip silicone layer 20 formed on the release paper 10, the second knife lifting portion 337 is controlled in the present embodiment so that the second coating liquid is spread in the width direction of the release paper 10 The distance between the surface of the slip silicon layer 20 and the end of the second knife 331 is adjusted by raising and lowering the second knife 331 at the upper portion of the release paper 10, The thickness of the additional silicon layer 30 is adjusted.

The slip silicon layer may be formed to a thickness of 0.2 to 1 mm, but the scope of the present invention is not limited thereto.

In this embodiment, the additional silicon layer 30 may be formed to have a predetermined thickness on the surface of the slip silicon layer 20, but the scope of the present invention is not limited thereto. But is not limited by the number of the additional silicon layers 30 to be formed.

The second drying chamber 350 serves to dry and cure the additional silicon layer 30 applied to the slip silicon layer 20. [

The second drying chamber 350 includes a second body 351 having an inlet and an outlet, a plurality of second ceramic far infrared heaters 353 provided inside the second body 351, A second heater fixing plate 355 to which the far infrared ray heater 353 is fixed and a second lift portion 357 connected to the second heater fixing plate 355 to elevate the second heater fixing plate 355 in the height direction, And a second exhaust duct 359 provided on the upper portion of the second heater fixing plate 355.

Infrared rays are emitted by the second ceramic far infrared ray heater 353 to dry and harden the additional silicon layer 30, the wavelength (3 to 20 mu m) of the far-infrared rays emitted is adjusted to remove only the additional silicon layer 30 Various kinds of facilities provided inside the second main body portion 351 may not be heated.

This is because the silicon rubber has a peak of the absorption spectrum in the range of 7 to 15 mu m and the other material does not have the absorption spectrum in the far infrared ray wavelength range. Therefore, if the far infrared rays are emitted, only the additional silicon layer 30 can be selectively heated, The internal equipment of the portion 351 is not heated.

Next, a spotting silicon layer is formed on the addition silicon layer (step c).

The point-worn silicon layer may comprise at least one of hydrazine silane, oxime silane, aminoxy silane, hydroxyl dimethyl siloxane, octamethyl cyclotetrasiloxane, A third coating liquid containing decamethyl tetrasiloxane, a pigment, a filler, and a catalyst on the slip silicon layer.

Preferably, the third coating liquid comprises 70 to 130 parts by weight of an oxime silane, 100 to 100 parts by weight of a hydrazine silane, 250 to 350 parts by weight of aminoxy silane; 70 to 130 parts by weight of hydroxyl dimethyl siloxane; 170 to 230 parts by weight of octamethylcyclotetrasiloxane; 70 to 130 parts by weight of decamethyl tetrasiloxane; 1 to 35 parts by weight of pigment; 1 to 30 parts by weight of a filler; And 0.001 to 0.1 part by weight of a catalyst.

More preferably, the third coating liquid comprises 80 to 120 parts by weight of oxime silane, 100 to 200 parts by weight of a hydrazine silane, 260 to 340 parts by weight of aminoxy silane; 80 to 120 parts by weight of hydroxyl dimethyl siloxane; 160 to 220 parts by weight of octamethylcyclotetrasiloxane; 80 to 120 parts by weight of decamethyl tetrasiloxane; 10 to 25 parts by weight of pigment; 5 to 20 parts by weight of a filler; And 0.001 to 0.1 part by weight of a catalyst.

Even more preferably, the third coating liquid comprises 90 to 110 parts by weight of oxime silane, 100 to 100 parts by weight of a hydrazine silane, 270 to 330 parts by weight of aminoxy silane; 90 to 110 parts by weight of hydroxyl dimethyl siloxane; 170 to 210 parts by weight of octamethylcyclotetrasiloxane; 90 to 110 parts by weight of decamethyl tetrasiloxane; 15 to 20 parts by weight of a pigment; 10 to 15 parts by weight of a filler; And 0.001 to 0.1 part by weight of a catalyst.

The spot-wise silicon layer is preferably formed to a thickness of 0.2 to 1.5 mm, but the scope of the present invention is not limited thereto.

This step is performed by being transferred to the spooling unit 400. The fusing unit 400 may form a spot-on silicon layer 40 on the additive silicon layer 30 and a fabric 50 on the spot-on silicon layer 40 in the next step.

9 to 11, the fusing unit 400 includes a third aligning unit 410 for transferring and aligning the release paper 10 on which the slip silicon layer 20 and the additional silicon layer 30 are sequentially formed, And a third silicon coating unit (40) arranged inline with the third alignment unit (410) to apply the third coating liquid to the additional silicon layer (30) formed on the release paper (10) (40) in which a fabric (50) is placed in line with the fitting portion (450) and a cloth (50) And a third drying chamber 470 for drying the first drying chamber 470.

Thereafter, a fabric is applied to the spot- Put it together  Silicone synthetic leather is prepared (step d).

The combining unit 450 included in the combining unit 400 serves to press the fabric 50 disposed on the surface of the point-wise silicon layer 40 to form the point-wise silicon layer 40 and the fabric 50 do.

The third drying chamber 470 serves to dry and cure the spot-on silicone layer 40 applied between the additional silicon layer 30 and the fabric 50.

The third drying chamber 470 includes a third body portion 471 having an inlet port and an outlet port and being transported in a zigzag shape in which the release paper 10 is S-shaped, and a third body portion 471 disposed inside the third body portion 471 A third heater fixing plate 475 to which a plurality of third ceramic far infrared heaters 473 are fixed and a third heater fixing plate 475 connected to the third heater fixing plate 475, And a third exhaust duct 479 provided on the upper portion of the third heater fixing plate 475. The third elevating duct 477 is provided on the upper side of the third heater fixing plate 475. [

In addition, when far infrared rays are emitted by the third ceramic far infrared ray heater 473 to dry and cure the sleeping silicon layer, the wavelength (3 to 20 mu m) of the far-infrared rays emitted is controlled to effectively heat only the spot- Various facilities provided inside the third main body 471 may not be heated.

This is because the silicon rubber has a peak of the absorption spectrum in the range of 7 to 15 mu m and the other material does not have the absorption spectrum in the far infrared ray wavelength range. Therefore, when the far infrared ray is emitted, The internal equipment of the portion 471 is not heated.

Thereafter, in the silicone synthetic leather, Embossing  Formed Release paper  (Step e).

The release paper 10 to which the fabric 50 is adhered is conveyed to the protective film attaching unit 500 disposed at the rear side.

2 shows a state in which after passing through the third drying chamber 470 of the spooling unit 400, the release paper 10 is coated with the slip silicon layer 20, the additional silicon layer 30, (50) are sequentially stacked.

Finally, Release paper  For removed slip On the silicon layer  Attach the protective film (step f).

The protective film attaching unit 500 can attach the protective film 60 to the slip silicon layer 20 after peeling the release paper 10 from the slip silicon layer 20. [

3 shows a silicone synthetic leather to which the protective film 60 is attached after the release paper 10 has been peeled off. Thereafter, the silicone synthetic leather to which the protective film 60 is adhered can be wound by the rearwardly disposed rewinder W2.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, many modifications and changes may be made by those skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims. The present invention can be variously modified and changed by those skilled in the art, and it is also within the scope of the present invention.

E: Embossing for slip
10: release paper
20: Silicon layer for slip
30: Additive silicon layer
40: Point-wearing silicon layer
50: Fabric
60: Protective film
100: Silicon synthetic leather manufacturing apparatus
200: a first silicon layer forming unit
210:
230: first silicone application part
250: first drying chamber
300: second silicon layer forming unit
310:
330: second silicon application part
350: Second drying chamber
400:
410:
430: Third silicon application part
450:
470: Third drying chamber
500: Protective film attaching unit

Claims (12)

(a) forming a slip silicon layer having a smooth slippery surface on a release paper on which a slip embossing is formed;
(b) forming an addition silicon layer on the slip silicon layer;
(c) forming a spotting silicon layer on the additional silicon layer; And
(d) fabricating the silicone synthetic leather by impregnating a fabric to the point-worn silicone layer,
Wherein the slip silicon layer in step (a) is formed by applying a first coating liquid onto the release paper,
The first coating liquid may contain,
With respect to 100 parts by weight of hydrazine silane,
10 to 70 parts by weight of an alkoxy silane;
50 to 110 parts by weight of enoxy silane;
50 to 110 parts by weight of hydroxyl dimethyl siloxane;
30 to 90 parts by weight of hexamethyl disiloxane;
1 to 50 parts by weight of a pigment;
1 to 50 parts by weight of a filler; And
0.001 to 0.1 part by weight of a catalyst,
The addition silicon layer of step (b) is formed by applying a second coating liquid onto the slip silicon layer,
The second coating liquid may contain,
With respect to 100 parts by weight of hydrazine silane,
10 to 60 parts by weight of enoxy silane;
10 to 60 parts by weight of an amide silane;
10 to 60 parts by weight of octamethylcyclotetrasiloxane;
1 to 45 parts by weight of octamethyltrisiloxane;
15 to 75 parts by weight of polydimethyl siloxane;
1 to 45 parts by weight of a pigment;
10 to 60 parts by weight of a filler; And
0.001 to 0.1 part by weight of a catalyst,
The point-worn silicon layer of step (c) is formed by applying a third coating liquid onto the slip silicon layer,
The third coating liquid may contain,
With respect to 100 parts by weight of hydrazine silane,
70 to 130 parts by weight of oxime silane;
250 to 350 parts by weight of aminoxy silane;
70 to 130 parts by weight of hydroxyl dimethyl siloxane;
170 to 230 parts by weight of octamethylcyclotetrasiloxane;
70 to 130 parts by weight of decamethyl tetrasiloxane;
1 to 35 parts by weight of pigment;
1 to 30 parts by weight of a filler; And
0.001 to 0.1 part by weight of a catalyst,
Wherein the hydrazine silane contained in the first, second and third coating liquids comprises a compound represented by the following formula (1).
[Chemical Formula 1]

delete delete The method according to claim 1,
Wherein the catalyst is any one selected from platinum, chloroplatinic acid, alcohol-modified chloroplatinic acid, chloroplatinic acid-olefin complex, chloroplatinic acid-alkenylsiloxane complex, and chloroplatinic acid-divinyltetramethyldisiloxane complex. ≪ / RTI > The method according to claim 1,
Wherein the drying and curing are performed in a heater which emits far-infrared rays having a wavelength of 3 to 20 mu m after application of the first coating liquid in step (a). delete delete delete delete The method according to claim 1,
After step (d)
(e) removing the release paper on which the slip embossing is formed in the silicone synthetic leather. 11. The method of claim 10,
After step (e)
(f) attaching a protective film on the slip silicon layer from which the release paper has been removed. A silicone synthetic leather produced by the method of any one of claims 1, 4, 5, 10 and 11.

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