KR100539023B1 - An antistatic agents for a natural leather and a manufacturing process of natural leather using the same - Google Patents

Abstract

The present invention relates to an antistatic composition capable of preventing static electricity generated from natural leather, and in particular, to prevent static electricity generated from natural leather by using such an antistatic agent, as well as a method of producing natural leather incidentally radiated to far infrared rays. It is about.

The antistatic composition of the present invention has a composition consisting of 10 to 20 parts by weight of the natural leather coloring dye, 0.1 to 3 parts by weight of the natural antistatic agent and 100% by weight of water, and the natural leather prepared using such a composition has an antistatic effect In addition, there is an effect that the far infrared rays beneficial to the human body.

Description

An antistatic agents for a natural leather and a manufacturing process of natural leather using the same}

The present invention relates to an antistatic composition capable of preventing static electricity generated from natural leather, and in particular, to prevent the static electricity generated from natural leather by using such an antistatic composition, as well as the production of natural leather incidentally radiated to far infrared rays It is about a method.

In general, most of the materials that are energized mostly generate static electricity when they rub against other materials, and many people feel uncomfortable due to the static electricity in our surroundings. There are many ways to find ways. Especially in leather, not only artificial leather but also natural leather are used for various purposes such as clothing, automobile interior materials, home sofa, handbags, etc. In order to remove static electricity, it is a fact that measures are taken after spraying an antistatic agent on leather goods or equipping antistatic equipment.

As an example of the prior art, Korean Patent Laid-Open Publication No. 2000-17782 discloses a natural leather material in which far infrared rays are radiated and a method of manufacturing the same. In this prior art, a far-infrared emission made of elvan, jade, germanium, ceramic and ocher between the dermis and the reticular layer having pores in the natural leather as a deodorizing function to remove the smell of natural leather and at the same time. Disclosed is a technique using titanium oxide, mimosa, or the like as a substance which impregnates particles in which the substance is atomized to 600 mesh or more to emit far infrared rays, and promotes penetration of far infrared rays.

However, in the prior art, mainly for the purpose of emitting far infrared rays and removing odors, it can be seen that there is no countermeasure against static electricity generated when the finished product is manufactured from natural leather.

Therefore, the present invention provides a natural antistatic agent that can prevent static electricity generated by using a natural leather fabric, and by impregnating the antistatic composition containing the natural antistatic agent in the natural leather natural antistatic and at the same time capable of far infrared radiation It is a technical subject to provide the manufacturing method of leather.

It is a first object of the present invention to provide an antistatic composition for natural leather comprising 10 to 20 parts by weight of a natural leather coloring dye and 0.1 to 3 parts by weight of a natural antistatic agent.

In addition, the second object of the present invention is to provide an antistatic composition of natural leather, characterized in that the components of the natural antistatic agent is mushroom, ginseng, Cheongung, Hwangji, Angelica, Peony, Camellia extract.

It is a third object of the present invention to provide a method for producing an antistatic natural leather, wherein the natural antistatic composition is spray applied and dried at least once in a natural leather manufacturing process to impregnate the natural leather.

For the fourth purpose of the present invention, the manufacturing process, (1) screening and the step of sorting and squeezing water to determine whether or not the raw material of the raw material; (2) dividing and shaving step divided by thickness according to the use use of the leather and the product use; (3) dyeing step of dyeing according to the basic color of the natural leather fabric; (4) setting step of smoothing the wrinkles generated in natural leather; (5) drying and humidity control step of drying and moisturizing the natural leather; (6) a stacking step of tapping hardened leather into a soft state; (7) a toggle step of pulling the loosened leather to pull it out of tension; (8) buffing step to smooth the surface and back of natural leather; (9) a six-sided binding step of performing a smoothing operation to prevent the fibrous tissues from rising while spraying and drying the antistatic composition according to claim 1; (10) a base coating step of coating the base of natural leather while simultaneously spraying and drying the antistatic composition of claim 1 using a roll coater: (11) embossing step of putting a pattern on the natural leather; (12) a color coating step of simultaneously drying the color coating (aqueous) while spraying the composition of claim 1; (13) It provides an antistatic natural leather manufacturing method consisting of a top coating step of spray coating the aqueous agent for the surface protection.

Another object of the present invention is the antistatic method according to claim 3, wherein the drying temperatures of the steps (5), (9), (10), and (12) are performed in at least 50 ° C to 75 ° C. It is to provide a method for producing natural leather impregnated with the composition.

The fifth object of the present invention is to provide a method for producing natural leather impregnated with the antistatic composition, characterized in that the drying step is carried out by at least one drying method of vacuum drying, natural drying and low temperature drying.

The antistatic composition, characterized in that the number of times the impregnation step of the antistatic composition made in the steps (9), (10), (12) for the sixth object of the present invention is carried out at least twice or more for each step It is to provide a method of manufacturing impregnated natural leather.

Hereinafter, a configuration and an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

The antistatic composition according to the present invention comprises 10 to 20 parts by weight of the coloring dye used to color natural leather with respect to 100 parts by weight of water, and ginseng, mushroom, cheonggung, hwangji, Angelica, peony, camellia It is made by mixing 0.1-3 weight part of inhibitors.

The natural antistatic agent is preferably used as a material extracted from the ginseng, mushroom, Cheongung, Hwangji, Angelica, Peony, Camellia which is a native plant of Korea. By using such natural materials, not only the effect of impregnating natural leather is excellent, but also the unique properties of ginseng and mushrooms are impregnated in the leather, thereby exerting harmful effects on the human body.

In addition, the present invention is to impregnate the natural antistatic composition as described above by spraying, drying and impregnating at least one or more times in the process of processing natural leather, which will be described in detail below.

First, when natural leather fabric is introduced, it is inspected and screened to see if the appearance is good through visual and test inspection. At this time, select good and defective products and select only good products to perform wetting in the turbo mixer.

Next, after the dividing and shaving process divided by the thickness according to the use of the leather and the use of the product, the second sorting is performed, and the dyeing process is performed by dyeing the dye according to the basic color of the natural leather fabric. In this dyeing step, the pH is preferably maintained at about 4.5 to 6.0, and the temperature of water used at the time of dyeing is preferably maintained at about 30 ° C to 60 ° C.

Next, through the setting process to even out the wrinkles generated in the natural leather, it goes through a drying and humidity process to dry and supply moisture to the natural leather. Normally, vacuum drying, natural drying, low temperature drying and the like are used, but if necessary, these drying processes may be used in order or selectively. The vacuum drying is dried using a vacuum dryer, and it is preferable to maintain the moisture content at about 30 to 50% during drying, and the vacuum time is performed at about 120 seconds to about 180 seconds. When drying naturally, it is preferable to use a hanger dryer to maintain moisture content of about 10 to 20%, and to maintain moisture content of about 8 to 10% at low temperature. After the drying process is subjected to a humidification step of supplying moisture, wherein it is preferable to supply moisture to maintain the moisture content of about 15 to 22%.

The next step is to go through the stacking step of tapping the hardened leather through a drying and humidity process to make it soft.The device used for stacking mainly uses a vibrator, and it is desirable to maintain the softness of about 2.5 to 3.0. Do

The next process is to pull the loose leather to pull it out of tension to tension, and the amount of moisture in the toggling step is a proper amount of moisture so that the impregnated composition of the later to impregnate the inner surface of the natural leather when spraying It is preferable to maintain about -12%.

Next, a six-sided binding process for smoothing the fiber tissue and the like is performed. The antistatic composition is then impregnated with natural leather while being sprayed and dried. do. At this time, the spray process is preferably performed at least twice or three times.

The base of the natural leather is then subjected to a base coating process of coating while drying the antistatic composition of the present invention using a roll coater while simultaneously drying. At this time, the process of impregnating the antistatic composition of the present invention is carried out again, and at this time, it is preferable to carry out at least two times as in the previous step.

Next, the embossing process is applied to the pattern of natural leather.

Next, the color coating (aqueous) is subjected to a color coating process, wherein the antistatic composition of the present invention while simultaneously spraying and drying the process again. At this time, it is preferable to carry out at least two times as in the previous step.

Next, the oil coating agent is subjected to a top coating process for spray coating the surface for protecting the natural leather, and after the inspection, packaging is finished to produce the antistatic natural leather of the present invention.

In the above process, the drying temperature after spray coating or the temperature during drying after humidity control is preferably performed in the range of 50 ° C to 90 ° C, preferably 50 ° C to 75 ° C.

In the antistatic natural leather manufactured through the above-described process, the results of the tests of the anti-static voltage test and the far-infrared radiation at the Korea Apparel Testing Institute are shown in the table below. It was found that the antistatic performance is excellent and the far-infrared radiation ratio is higher than before.

Experimental Example 1

From 20 parts by weight of natural leather coloring dye, mushroom, ginseng, celestial organ, Angelica, peony, camellia, respectively, with respect to 100% by weight of natural leather (Sample 1) and 100 parts by weight of water of the present invention Natural leather (Sample 2) prepared by treatment with an antistatic composition consisting of 0.2 parts by weight of a natural antistatic agent consisting of the same amount of the extracted mixture was prepared by the method of frictional voltage (V) KS K0555: 2000 B method (friction charge measurement method) The sample was measured by).

 Test Items  Sample 1  Sample 2  Cotton friction cloth  8800 V  200 V  Mom friction cloth  1100 V  200 V   Measuring conditions          20 ± 2 ℃, 40 ± 2 ℃ 400rpm

According to the experimental results in Table 1 above, the natural leather sample 1 before treatment showed that the instantaneous electrostatic voltage reached 8800V when frictiond with a cotton friction cloth, and 1100V when frictiond with a frictional cloth. Natural leather sample 2 treated with the antistatic composition was confirmed to be rapidly reduced to 200V.

Experimental Example 2

From 20 parts by weight of natural leather coloring dye, mushroom, ginseng, celestial organ, Angelica, peony, camellia, respectively, with respect to 100 parts by weight of natural leather (sample 3) before treatment with the antistatic composition of the present invention. Natural leather (Sample 4) prepared by treating with an antistatic composition consisting of 0.2 parts by weight of the natural antistatic agent consisting of the same amount of the extracted mixture was prepared and the amount of far-infrared radiation was measured. This test result is a black body contrast measurement using the FT-IR spectrometer.

Test Items Sample 3 (Emissivity Ratio) Sample 4 (Emissivity Ratio) Test Methods Far infrared ray emission amount (measured at 40 degrees Celsius) Emissivity (standard value 5-20㎛) 0.909 0.911 KICM-FIR-1005 The maximum value of the emissivity ratio is based on 1.

Looking at Table 2, the emissivity of sample 3 of natural leather prior to treatment of the composition of the present invention was 0.909, and the sample 4 of natural leather treated with the composition of the present invention was found to have increased far-infrared radiation to 0.911. .

Natural leather produced by spray-impregnating an antistatic composition for natural leather comprising 10 to 20 parts by weight of natural leather coloring dye and 0.1 to 3 parts by weight of natural antistatic agent as described above with respect to 100 parts by weight of water of the present invention. This excellent, far-infrared radiation effect, when applied to a variety of leather products, such as leather bags, automobile interior materials, sofas using natural fabrics, can effectively prevent static electricity, even up to the desired effect of emitting far infrared rays. .

1 is a schematic diagram for explaining a natural leather manufacturing process of the present invention.

Claims (7)

Charge for natural leather composed of 10 to 20 parts by weight of natural leather coloring dye and the same amount of mixtures extracted from mushrooms, ginseng, cheonggung, donkey, peony, and camellia, respectively, based on 100 parts by weight of water. Prevention composition. delete An antistatic natural leather manufacturing method according to claim 1, wherein the antistatic composition for natural leather is spray-coated and dried at least once in a natural leather manufacturing process to impregnate the natural leather. The method of claim 3, wherein the manufacturing process, (1) screening and semming step of screening and removing moisture by judging the quality of raw skin; (2) dividing and shaving step divided by thickness according to the use use of the leather and the product use; (3) dyeing step of dyeing with dye according to the basic color of natural leather fabric; (4) setting step of smoothing the wrinkles generated in natural leather; (5) drying and humidity control step of drying and moisturizing the natural leather; (6) a stacking step of tapping hardened leather into a soft state; (7) a toggle step of pulling the loosened leather to pull it out of tension; (8) buffing step to smooth the surface and back of natural leather; (9) a six-sided binding step of performing a smoothing operation to prevent the fibers and the like from rising while spraying and simultaneously drying the antistatic composition according to claim 1; (10) a base coating step of coating a base of natural leather while using a roll coater while simultaneously spraying the antistatic composition according to claim 1; (11) embossing step of putting a pattern on the natural leather; (12) a color coating step of simultaneously drying while spraying the composition of claim 1 while color coating (aqueous); (13) Antistatic natural leather manufacturing method consisting of a top coating step of spray coating the aqueous agent for the surface protection. 5. The charging method according to claim 4, wherein the drying temperatures of steps (5), (9), (10) and (12) are performed in a range of 50 ° C to 90 ° C, preferably 50 ° C to 75 ° C. Method for producing natural leather impregnated with the prevention composition. The method of claim 4 or 5, wherein the drying step is carried out by at least one drying method of vacuum drying, natural drying, low temperature drying or sequentially performed natural leather impregnated with an antistatic composition. The impregnation of the antistatic composition according to claim 4, wherein the number of times of impregnation of the antistatic composition made in the steps (9), (10), and (12) is repeated at least twice. Natural leather manufacturing method.