KR0140684B1 - Floor covering having a natural marble appearance, manufacturing method and apparatus thereof - Google Patents

Abstract

Vinyl chloride tiles and stone flooring materials were used as commercial floor finishing materials in buildings, but vinyl chloride tiles had limitations as products to exhibit similar texture to natural marble, and stone materials were not desirable in terms of price.

Therefore, in order to solve the problem, the present invention is a natural marble by laminating a marble sheet layer and a vinyl chloride sheet layer obtained by coating and gelling two or more translucent vinyl chloride resin sol with a certain thickness while forming a marble pattern using a stirring device. To prepare a flooring material having an appearance of.

The flooring material according to the present invention has a similar appearance and texture to natural marble and is inexpensive and is useful as a flooring material of a corresponding building.

Description

Floor covering material with natural marble appearance and manufacturing method thereof

1 is a cross-sectional view of a known vinyl chloride tile,

2 is a cross-sectional view of a known vinyl chloride tile having a marble pattern effect,

3 is a cross-sectional view of a known vinyl chloride tile attached with a printing layer,

4 is a cross-sectional view of the present invention,

5 is a configuration diagram of a mechanical device for producing a marble sheet layer of the present invention,

6 is a detailed view of the marble pattern forming apparatus of FIG.

7 is a detailed cross-sectional view of the nozzle 22 of FIG.

FIG. 8 is the impeller shape of the secondary stirring apparatus 25 of FIG.

* Explanation of symbols for the main parts of the drawings

1: Vinyl chloride tile layer 2: Marbled vinyl chloride tile layer

3: transparent film layer 4: printing layer

5: Marble sheet layer 6: Unwinder

7: Release Paper 8: Translucent colored vinyl chloride resin sol reservoir

9: Sol stirring device 10: Knife coater

11: Back up Roll 12: Hot air circulation oven

13: Cooling Roll 14: Separator

15: Sol position detector 16: Valve

17: bank sol position sensor 18: coloring sol for giving a color

19: Colored sol to give marble pattern (a)

20: Colored sol for giving marble pattern (I)

21: Pipe 22: Nozzle

23: Slope plate 24: 1st stirring device

25: Secondary stirring device 26: Sol Bank

The present invention is the appearance of a natural marble prepared by forming a marble pattern of two or more colored vinyl chloride resin sol using a stirring apparatus, and then coating and gelling it to a predetermined thickness to laminate the marble sheet layer with a vinyl chloride tile layer. It relates to a floor decorative material having a and a method of manufacturing the same.

In the past, the commercial floor finishing materials of general buildings have been mainly polished or polished by grinding marble, or vinyl chloride tiles such as the first degree. However, according to the recent trend of improving living standards and high-quality building materials, department stores, office buildings, large The use of stone floorings, such as granite and marble, has become commonplace in major commercial buildings such as general stores.

However, these stone products are excellent in durability and expensive, so most of them have to rely on imports, and thus, the development of alternatives considering price and practicality is increasingly required.

In order to solve this problem, two or more colored vinyl chloride sheets exhibiting a marble pattern as shown in FIG. 2 are crushed into various irregular shapes, laminated, and re-molded by a press or continuous rolling method to form a new marble pattern that is more natural. Although the vinyl chloride tile has been developed, this also has a limitation as a product that can replace the natural marble due to the deterioration of color and texture due to the excess filler used in the manufacture of the vinyl chloride tile.

In addition, the product was manufactured by showing the effect of natural marble on the printing sheet layer as shown in FIG. 3 using a gravure printing method, and then laminating the vinyl chloride tile sheet with a transparent vinyl chloride layer to protect the gloss and printed layer of the surface. Although recently introduced, it is not suitable for use as a flooring material in commercial buildings where frequent traffic is due to the lack of durability such as the scratch resistance and wear resistance of the transparent vinyl chloride layer. Accordingly, unlike the original product development purpose, it is used in places where shoes are not worn, such as apartment living rooms.

The present invention is to solve the above problems by using two sol agitator to reciprocate and rotate the left and right two or more semi-transparent colored vinyl chloride resin sol in order to exhibit a similar appearance and texture to natural marble marble The present invention relates to a floor decorative material having the appearance of natural marble manufactured by laminating a marble sheet layer obtained by coating and gelling to a predetermined thickness while forming a pattern with a vinyl chloride sheet.

Hereinafter, a manufacturing method of the present invention will be described with reference to the drawings.

First, the apparatus capable of manufacturing the marble sheet 5 includes a knife coater 10 attached with an in-winder 6 and a sol agitator 9 capable of hanging the rolled release paper 7 as shown in FIG. It consists of a colored vinyl chloride resin sol reservoir (8), a hot air circulation oven (12), a cooling (13), and a separator (14) that separates the layer of marble sheet coated and coated on the release paper from the release paper (7). The detailed construction of the sol agitator 9, which can agitate the semi-transparent colored vinyl chloride resin sol to form a marble pattern, is shown in FIG. 6, as shown in FIG. , The inclined plate 23, the sol agitator (24, 25), the knife coater (10) is described as follows.

The sol storage tank 8, the valve 16, and the position sensors 15 and 17 function to supply the sol to the stirring device, and the sol position detector 15 detects the sol position of the storage tank 8. To keep the sol height constant, the valve 16 is a device installed to adjust the amount of sol supplied to the sol agitator, and the sol position detector 17 is located at the position of the sol bank 26. It is connected to the valve (16) by sensing the device for forming a sol bank of a constant height.

The colored sol 18 is a sol supplied to impart a marble ground color. The colored sol 18 is supplied on the sol bank 26 through a pipe 21 having a diameter of 5 mm and a hole having a width of 4 to 5 cm uniformly at the right and left sides.

The other colored sol (19, 20) is a sol supplied to give a marble pattern, and is supplied to the left and right reciprocating with the agitator (24, 25) on the inclined plate 23, it is possible to supply a small amount of several sol The nozzles 22 are attached to each end of the hose so that they can be attached. The shape of this nozzle is as shown in Fig. 7, with a hole diameter of 2 to 5 mm, a number of holes of 5 to 10, a hole spacing of 5 to 15 mm, and a nozzle hole parallel to the direction in which the release paper 7 proceeds. Do.

The sol agitator for forming a marble pattern consists of a sloping plate 23, agitators 24, 25, nap coater (10).

The inclined plate 23 serves to facilitate contact between the colored sol 19 and 20 supplied to the inclined plate and the bank sol formed by the knife coater 10. The primary stirring device 24 has a width of 15 mm, It is a device of 2mm thick bass, which gives the horizontal pattern by mixing the bank sol and the colored sol supplied to the stirring device at the end of the inclined plate, and the secondary stirring device 25 has the shape shown in FIG. Impeller is a device that has a function to change the horizontal pattern formed by the primary stirring device 24 in the left and right reciprocating motion and the self-rotating motion to a natural and sophisticated marble pattern.

The knife coater 10 is a device for coating the marble patterned layer formed by the stirring apparatuses 24 and 25 on the release paper 7 with a constant thickness through a gap with the backup rule 11.

That is, to explain more specifically, the colored sol 18 which gives the background color on the sol bank formed by the knife coater 10 is supplied and stretched in the primary length direction, and the sol and the slope plate 23 are provided. The colored sol (19, 20) to be supplied is stirred by the primary stirrer (24) to form a secondary transverse pattern and finally agitated by the secondary stirrer (25) to finally change to the non-aromatic natural marble This is coated on the release paper 7 by passing a marble layer of a constant thickness by the knife coater 10, and the remaining marble sol forms a sol bank (Sol Bank) by the rotational force of the back-up roll (11) You will return to page 23).

In this process, the solbank is almost uniformly mixed with each other to become a single color, and the colored sol 18 is supplied on the solbank.

By repeating this process, it is possible to continuously reproduce the pattern with the natural natural marble effect by the sol agitator and the knife coater. The marble sheet layer thus obtained is gelled in a hot air circulating oven (12), and then the marble sheet (5) and the release paper (7) are separated by the separator (14), followed by plywood film sheet to obtain the present invention. In this case, the marble sheet and the vinyl chloride sheet may be laminated using a conventional laminating method, for example, a heating press laminating method in which two sheet layers to be laminated are heated and pressed through two rolls.

Hereinafter, the present invention will be described in more detail with reference to the following examples.

EXAMPLE

First, in order to manufacture the sol marble sheet 5, three kinds of colored vinyl chloride resin sols (PVC Sol) having a composition of 100 parts by weight of vinyl chloride resin, 40 to 60 parts by weight of plasticizer and 3 parts of stabilizer were prepared.

The three kinds of colored vinyl chloride resin sol thus prepared are supplied and stored in the storage tank (8), and since the marble pattern and color vary depending on the weight ratio of the coloring sol supplied from each storage tank, the stirring device is controlled by adjusting the valve (16). The weight ratio of the coloring sol (18) :( 19) :( 20) supplied to was set to be 5: 3: 2.

The angle of the inclined plate was adjusted to 40 to 60 ° which is the best mixing of the bank sol and the coloring sol, and the distance between the inclined plate and the bottom of the knife coater 10 was 85 mm.

As a result of several tests, the left and right reciprocating devices equipped with the nozzles for supplying the colored sol (19, 20) and the stirring devices (24, 25) at a speed of 24 m / min, the impeller rotation speed of the secondary stirring device (25) 30 RPM. When the impeller is parallel to the knife coater, the position of the impeller is

In consideration of the marble pattern formed, a distance of 20 mm was maintained from the end of the inclined plate, and the sol bank height was set to 30 to 50 mm suitable for providing a natural marble pattern without irritation of the primary stirring device 24.

The working speed was set at a speed of 5 to 8 m / min in which the non-directional marble pattern was possible under the above conditions. The low viscosity vinyl chloride resin sol of 2,000 ~ 6,000CPS is used to make the sol viscosity natural and overall marble pattern.Storage tanks and agitation which can be affected by external temperature change to give reproducibility of marble effect A constant temperature chamber was installed in the apparatus and the coater site to maintain constant temperature.

The natural marble effect is better as the thickness of the marble layer is thicker, but the optimum thickness is set to 0.5 to 0 7 mm in consideration of the increase in manufacturing cost due to the increase in the sol requirement. Thus, the translucent colored vinyl chloride sol supplied to the stirring apparatus and the coater was able to exhibit a natural marble texture pattern with a constant thickness by continuous stirring and coating method, and a uniform thickness marble sheet having a thickness deviation of ± 0.03 mm. You can get a layer.

Thus, the sol marble sheet obtained by the sol agitator 9 and the knife coater 10 is heated in a hot air circulation oven 12 at a temperature of 180 ° C. for 1 minute to 1 minute 30 seconds to be gelled, and then the separator 14. The marble sheet (5) and the release paper (7) were separated, and laminated with a vinyl chloride tile by heat press lamination to obtain the present invention as shown in FIG.

By the method of the present invention it is possible to obtain a floor decorative material having a pattern and texture similar to natural marble and can be provided at a low price.

Claims (3)

Heating and laminating the marble sheet layer and the vinyl chloride sheet layer obtained by coating and gelling two or more translucent colored vinyl chloride resin sols to a certain thickness while forming a marble pattern by using two sol stirring devices which reciprocate and rotate left and right. A method of producing a floor covering having the appearance of natural marble, characterized in that the plywood is produced by plywood. The resin of claim 1, wherein the vinyl chloride resin sol for imparting the ground color is supplied in position through the pipe 21 on the sol bank, and the colored vinyl chloride sol for imparting marble pattern is provided with a nozzle for reciprocating left and right. 22) A method of manufacturing a floor covering having a natural substitute appearance characterized in that it is supplied over the inclined plate. Floor covering having the appearance of natural marble produced by the manufacturing method according to claim 1.