KR20040048229A - Manufacturing device for environment protective artificial leather - Google Patents

Abstract

PURPOSE: A manufacturing device of artificial leather being environmentally friendly is characterized by using environmentally friendly water dispersion polyurethane resin, reducing a production cost and increasing productivity. CONSTITUTION: A manufacturing device(1) of artificial leather being environmentally friendly comprises: a dipping bath(4) dipping a base material(2) into a water dispersion polyurethane resin(3) to get about 50% of moisture content; a dryer(5) drying the dipped material(2a); a steam drum(6) smoothing a surface of the material; a coater(7) coating an upper side of the material(2a) with the water dispersion polyurethane resin(3) containing a thickener; a steam chamber(8) steam-coagulating the coated material(2b); a steam damper installed in the steam chamber(8) and divided on an upper and a lower steaming chambers and a steam injecting chamber; opening holes formed on both sides of the steam damper; many steam injectors injecting steam to the streaming chamber; steam pipes for removing condensate water set on an upper part, the front and the rear of the steaming chamber; an air heater(14) which is installed on the steaming chamber, supplying hot blast through a hot-air injection pipe(14a) to the steam injecting chamber; a discharge steam absorbing tube(15) set on the air heater(14); a gutter for catching external condensate water installed on an inlet come the coated material(2b) in; a first dryer(18) drying a silver layer of the coated material(2b); a steam drum(17) smoothing the silver layer; a second dryer(18a) drying the coated material(2b); and a winder(20).

Description

Manufacturing device for environment protective artificial leather

The present invention relates to an environmentally friendly artificial leather manufacturing apparatus capable of producing synthetic leather (synthetic leather) widely used in shoes, bags, miscellaneous goods, sports goods, etc. More specifically, the substrate (non-woven fabric, woven fabric, etc.) 1 To impregnate and dry the secondary water-dispersed polyurethane resin to make impregnated cloth, and then to provide a device that can manufacture artificial leather by coating the water-dispersed polyurethane resin with high viscosity to make a coated cloth and solidify it with steam. In particular, it is to provide a new artificial leather manufacturing apparatus that can be manufactured in an environment-friendly and cheap.

In general, in order to manufacture artificial leather, artificial leather is manufactured using oil-based resins composed of 70% DMF and 30% polymer in nonwoven fabrics.

Among the oil-based resins used in the composition of the existing artificial leather, DMF is very toxic and environmentally invasive composition has been said that the use of such DMF should be actively refrained.

In addition, the existing artificial leather manufacturing apparatus is not only expensive, but also has a high space occupancy rate of the apparatus and requires a large number of workers, thereby limiting the manufacturing cost.

In order to solve the above problems, the inventors of the present invention have completed the development of 'artificial leather manufacturing apparatus' which can manufacture artificial leather at low cost using environmentally friendly water-dispersed polyurethane resin, and applied for a prior patent application (application number: 10-2001-0046413)

It has not been satisfied with the above patent application, and has been continuously exploring and developing a mechanical defect that is an obstacle to mass production capable of constructing an apparatus more efficiently and producing artificial leather.

Accordingly, the present invention is to provide an environmentally friendly artificial leather manufacturing apparatus that can more efficiently manufacture artificial leather using a substrate such as a water-dispersible polyurethane resin, nonwoven fabric, woven fabric,

In particular, the present invention is a means for impregnating and coating a water-dispersed polyurethane resin on the substrate first, a means for smoothing the coated surface after drying, and a second after coating the water-dispersed polyurethane resin with high viscosity and steam The present invention provides a artificial leather manufacturing apparatus that provides a means for solidifying and discloses a means for performing drying and smoothing of the coated surface after steam solidification to enable a more efficient process for manufacturing an artificial apparatus. The invention is completed.

1 is a schematic view showing an embodiment of the artificial leather manufacturing apparatus provided by the present invention

Phosphorus

Figure 2 is a stage showing the steam chamber in the artificial leather manufacturing apparatus provided by the present invention

Cotton construction

Figure 3 is a side showing the steam chamber in the artificial leather manufacturing apparatus provided by the present invention

Sectional Diagram

■ Explanation of symbols used in main part of drawing ■

1: artificial leather manufacturing apparatus 2: base material

2a: impregnated cloth 2b: coated cloth

3: water dispersion polyurethane resin 4: impregnation tank

5: dryer 6: steam drum

7: coater 8: steam chamber

9: steam barrier plate 9a: opening

10: steam chamber 11: steam spray chamber

12: steam jet 12a: steam jet

13: steam tube 14: hot air fan

14a: hot air injection pipe 15: discharge steam absorption pipe

16: Gutter for external condensate 17: Steam drum

18: primary dryer 18a: secondary dryer

19: artificial leather 20: odor

Artificial leather manufacturing apparatus (1) provided by the present invention is stored in the water-dispersed polyurethane resin (3), which is primarily composed of a nonwoven or woven base material (2) of 70% water, polyurethane resin 30% An impregnation tank 4 and a dryer 5 for drying the base material 2 impregnated with the water-dispersed polyurethane resin 3 are provided via the impregnation tank 4.

The preferred drying temperature on the dryer 5 is 80-250 ° C., and the water content of the water-dispersed polyurethane resin 3 on the substrate 2 is adjusted to about 50% of the weight of the substrate 2.

And steam is supplied to the steam to be heated to a temperature of 80 ~ 250 ℃ to smooth the coated surface of the water-dispersible polyurethane resin (3) impregnated in the substrate (2) the moisture content is adjusted through the dryer (5) Install the drum (6).

On the rear side of the steam drum 6, the viscosity of the substrate 2, that is, the impregnated cloth 2a, which is impregnated with the water-dispersible polyurethane resin 3 on the substrate 2, is secondarily high (viscosity of about 7,000 centipoise)) Coater (coater) 7 for mixing the water-dispersed polyurethane resin (3) to coat a thickness of about 0.5 ~ 1.5mm is installed, and the water-dispersed polyurethane resin while passing through the coater (7) Coating (3) forms a so-called 'coating cloth' (2b).

The second water-dispersed polyurethane resin (3) to be coated is to use a mixture of water and solid content of about 70:30,

The solid content is 100 parts by weight of polyurethane resin, 10 parts by weight of toner to obtain a specific color, 5 parts by weight of thickener to obtain a desired viscosity, and 5 parts by weight of an inorganic salt or an organic salt with other additives. Will be used.

And a steam chamber 8 for steam solidifying the water-dispersed polyurethane resin 3 coated on the coating cloth (2b) is installed, the steam having a temperature of about 70 ~ 200 ℃ in the steam chamber (8) By supplying the secondary coating the water-dispersed polyurethane resin (3) by steam to solidify.

The steam content on the steam chamber 8 is supersaturated and configured to be sprayed from the bottom of the steam chamber 8 to the top at a pressure of about 0.5 kg / cm ² .

To this end, as shown in FIG. 2, the steam chamber 8 is provided with a steam blocking plate 9 made of stainless steel or the like in the steam chamber 8 to separate the upper and lower steam chambers 10 and the steam spray chambers 11. It is to be formed, but as shown in the cross-sectional view of Figure 3 to the both sides of the steam blocking plate (9) by forming the opening (9a) steam injected from several steam injector (12a) through a plurality of steam injection port (12) It is configured to be injected into the steam chamber 10 so that there is no direct steam contact in the lower silver layer surface, and the inner condensate water removal steam pipe 13 is piped at predetermined intervals in the upper and rear sides of the steam chamber 10.

The condensate removal steam tube 13 may be replaced with a heating means containing a heater that is electrically heated as necessary.

In addition, a hot air fan 14 is installed at an upper portion of the steam chamber 10 to connect a discharge steam absorption pipe 15 piped to the inlet side through which the coating cloth 2b is introduced, and the hot air generated in the hot air fan 14 is injected with hot air. It is to be supplied to the steam injection chamber 11 through the pipe (14a).

Meanwhile, an external condensate receiving gutter 16 is installed at an inlet of the steam chamber 8 through which the coating cloth 2b is introduced so that the external condensation water does not fall on the upper surface of the coating cloth 2b.

The gutter 16 may be installed only at the inlet side, that is, the outlet of the steam chamber 8 is discharged after the coating cloth 2b is steam solidified, so even if the external condensate falls on the top surface of the coating cloth 2b, It doesn't affect anything at all.

When the temperature inside the steam chamber 8 is high, 70% of the water acting as the urethane dispersion medium of the water-dispersed polyurethane resin 3 coated on the coating cloth 2b is boiled and the surface film is damaged, so the steam chamber 8 The temperature control of) is very important. It is preferable to operate the temperature of the steam chamber 8 about 110-130 degreeC.

On the rear side of the steam chamber 8 is provided a primary dryer 18 for drying the silver layer surface of the steam-coated coating cloth (2b), so that it can be heated to a temperature of 80 ~ 250 ℃ for smoothness of the silver layer surface The steam drum 17 to which steam is supplied is installed, and a secondary dryer 18a capable of performing the final drying is installed to finally dry the coated fabric 2b and wind up the finished artificial leather 19. Winding machine 20 made of a winding roller is installed.

Hereinafter, a description of the operation of the artificial leather manufacturing apparatus 1 of the present invention will be described in detail with the preferred embodiment of manufacturing the artificial leather 19 using the artificial leather manufacturing apparatus 1 of the present invention.

(Example 1)

A nonwoven fabric wound in a roll state was supplied as a base material 2 onto the impregnation tank 4 and impregnated with the water-dispersed polyurethane resin 3 introduced into the impregnation tank 4.

After drying the substrate (2) impregnated with the water-dispersible polyurethane resin (3) via a dryer (5) having a temperature of about 130 ℃, passed through a steam drum (6) heated to a temperature of about 120 ℃ The coated surface of the water-dispersed polyurethane resin 3 coated on the substrate 2 was smoothed.

The impregnated fabric 2a impregnated with the water-dispersed polyurethane resin 3 having passed through the steam drum 6 had a smooth surface and was integrated with the substrate 2.

A thickener is mixed on the upper surface of the impregnated fabric 2a to coat a water-dispersed polyurethane resin 3 having a high viscosity, such as honey, on the upper surface of the impregnated fabric 2a while passing through the coater 7. While coating the coating cloth (2b) coated with the water dispersion polyurethane resin (3) was continuously introduced into the upper steam chamber (10) of the steam blocking plate (9) of the steam chamber (8).

The temperature inside the steam chamber 10 of the steam chamber 8 was set to maintain 110 to 130 ° C., and the water-dispersed polyurethane resin coated on the upper surface of the coating cloth 2b via the steam chamber 10 ( 3) The surface coating was completely solidified.

In addition, when the coating cloth 2b is passed through the steam chamber 8, the steam generated in the steam spray chamber 11 under the steam chamber 8 is not directly raised by the steam blocking plate 9, but is laterally raised. It rose through the opening 9a of and made it possible to steam-solidify the water-dispersed polyurethane resin 3 on the coating cloth 2b.

The coating cloth 2b via the steam chamber 8 was passed through the primary dryer 18 to perform the silver layer surface drying, and to pass the steam drum 17 heated at 120 ° C. to smooth the silver layer surface. After passing through the secondary dryer (18a) was finished the manufacture of artificial leather (19) through a process of winding the finished artificial leather 19 after the final drying on the odor blowing machine (20).

The artificial leather 19 produced by Example 1 had a leather texture without a gloss as it was, and the surface texture was very soft, and the excellent artificial leather embodying the surface texture of the artificial leather manufactured by the existing method as it is. Could get

In addition, the manufacturing process was also made in a short time compared to the conventional artificial leather manufacturing process was confirmed that can greatly contribute to the mass production of the product.

As described in detail above, the environmentally friendly artificial leather manufacturing apparatus (1) provided by the present invention is first impregnated with an environmentally friendly water-dispersible polyurethane resin (3) on a substrate (2) made of nonwoven fabric or woven fabric and dried. After impregnating the coated surface in the steam drum (6) heated by steam to prepare an impregnated fabric (2a), the water-dispersible polyurethane resin (3) was administered to the impregnated fabric (2b) 2 After coating with a car to form a coating cloth (2b) and steam-coagulated on the steam chamber (8), the first drying for drying the silver layer, and smoothed by passing through a steam drum (17) heated by steam, and then the second drying As can be produced artificial leather (19),

The present invention can be used in the manufacture of environmentally friendly artificial leather, in particular, compared to the conventional organic solvent-type artificial leather manufacturing apparatus, can provide a cheap artificial leather by reducing the installation cost and manpower, etc. Artificial leather can be mass-produced to maximize productivity.

Claims (3)

In constructing an artificial leather manufacturing apparatus (1) capable of manufacturing artificial leather using a water-dispersible polyurethane resin; An impregnation tank 4 capable of impregnating the substrate 2 with the water-dispersed polyurethane resin 3 at a water content of about 50%, Speech dryer (5) capable of drying the impregnated cloth (2a) impregnated with the water-dispersible polyurethane resin (3) through the impregnation tank (4) and steam drum (6) for smoothing the surface, A coater 7 for processing the coating cloth 2b is installed by coating the water-dispersed polyurethane resin 3 mixed with a thickener on the upper surface of the impregnated cloth 2a via the steam drum 6, The steam chamber 8 for steam solidifying the coating cloth 2b is provided with a steam blocking plate 9 therein to separate the upper and lower steam chambers 10 and the steam spray chambers 11, Openings 9a are formed at both sides of the steam blocking plate 9 so that the steam injected from several steam injectors 12a is injected into the steam chamber 10 through the plurality of steam injection holes 12, and the steam chamber Inside the upper and rear of the (10), a plurality of internal condensation water removal steam pipes 13 are piped at predetermined intervals, A hot air fan 14 is installed on the upper portion of the steam chamber 10 to connect the discharge steam absorption pipe 15 piped to the inlet side, and the hot air generated in the hot air fan 14 is steamed through the hot air injection pipe 14a. To the fact (11), At the inlet portion to which the coating cloth 2b is introduced, an external condensate receiving gutter 16 is installed. On the rear side of the steam chamber 8, the primary dryer 18 for drying the silver layer of the steam-coated coating cloth 2b, the steam drum 17 for smoothing the silver layer, and the secondary for the final drying An environmentally friendly artificial leather manufacturing apparatus, comprising: a drier 18a provided with a drier 18 to wind up the finished artificial leather 19. The method of claim 1; Environmentally friendly artificial leather manufacturing apparatus, characterized in that the temperature in the steam chamber (8) is 70 ~ 200 ℃. The method of claim 1; The steam drum (6, 17) is an environmentally friendly artificial leather manufacturing apparatus, characterized in that to be heated to a predetermined temperature by steam.