KR910003316B1 - Forming method of electrification-prevention board - Google Patents

Abstract

The antistatic board is produced by coating the antistatic-treated synthetic resin binder on the surface of the colored antistatic chip, laminating the the chip on the substrate board with 1-6 mm thickness, gelating it by heating for 1-5 min. in the oven at 150-200 deg.C, and rolling it for 5 sec-1 min. by the roll-press at 80-250 deg.C of the press surface and 5-50 kg/ cm2.

Description

Material and its manufacturing method having antistatic effect

1 is a longitudinal cross-sectional view of the upper material according to the present invention.

2 is a schematic view showing a manufacturing process for producing a top material according to the present invention.

Figure 3a is a plan view of a product given a turn using a mixture of raw materials of different colors.

FIG. 3B shows a-a 'longitudinal cross-sectional view in FIG. 3A.

* Explanation of symbols for main parts of the drawings

1: unwinding roll 2: raw material arrangement part

3: burst oven 4 ': rolling press

5: surface treatment part 6: drying oven

7: winding roll

The present invention relates to a material having an antistatic effect and a method for manufacturing the same, and more particularly, using a raw material of various colors prepared by coating an antistatic treated synthetic resin binder on the surface of a colored antistatic chip. The present invention relates to a material having a pattern and having an excellent antistatic effect and a method of manufacturing the same.

In general, the conventional synthetic resin material has a high electrical insulating property of the synthetic resin used as the raw material is to maintain the charged state without attenuating the static electricity generated by friction or induction electricity generated from high magnetic fields.

Therefore, the upper surface is easily contaminated by dust and the like, and particularly in places such as a computer room or a semiconductor assembly plant, various serious problems are caused by electrical troubles caused by human voltage. Due to this problem, conventionally anti-static tiles and vinyl materials have been developed and used, but these are all products by the calender method, and the appearance effect is monotonous, and the antistatic agent used is large in activity. Since the low melting point material was used, the workability was poor, resulting in various problems such as not only the surface of the product was rough, but also the contamination resistance was poor and the hardness was reduced.

Accordingly, the present inventors have made a thorough study to solve the decontamination point in the conventional synthetic resin material, as described above, various colors produced by coating the antistatic treated synthetic resin binder on the surface of the colored anti-chip (chile) By using a combination of the raw materials of, and arranged on the substrate according to the design to obtain this raw material and heat-rolled it to invent a commercial material having an excellent appearance effect, a pattern, and excellent antistatic effect.

That is, an object of the present invention is to provide a material having a beautiful appearance and excellent antistatic effect and a method of manufacturing the same, which can be manufactured using a colored antistatic chip and an antistatic treated synthetic resin binder.

Hereinafter, the present invention will be described in detail. In the present invention, in manufacturing the upper material having an antistatic effect, the surface of the colored antistatic chip is coated with an antistatic treated synthetic resin binder, the chips are color-coded according to the desired design to the thickness of 1 to 6mm on the substrate After lamination, it was gelled by heating in an oven at 150 to 250 ° C. for 1 to 5 minutes, and then 5 seconds to 1 at a pressure of 5 to 5 kg / cm 2 using a rolling press heated at a surface temperature of 80 to 250 ° C. It is characterized by producing a phase material having an antistatic effect by rolling for minutes.

In addition, the present invention is a colored antistatic chip coated with an antistatic treated synthetic resin binder on a substrate made of mineral paper or asbestos paper, glass fiber paper, plain woven fabric or woven fabric of 0.5 to the desired color according to the desired design color It is characterized by being a material having excellent antistatic effect laminated at a thickness of 3.0 mm.

Hereinafter, the present invention will be described in more detail.

The colored antistatic chip used in the present invention is 20 to 40 parts by weight of plasticizer, 2 to 10 parts by weight of stabilizer, 150 to 450 parts by weight of filler, and 2 to 10 weight of antistatic agent to 100 parts by weight of synthetic resin such as PVC having a polymerization degree of 700. After the addition of an appropriate amount of pigment and mixing in a Bunbury Mixer (Banbury Mixer), the raw material is rolled with a calender roll to form a sheet of 0.5 to 2.5mm thickness, and then 0.4 to 10mm It can be manufactured by grinding into a chip state having a particle size.

In addition, the electrostatically treated synthetic resin binder according to the present invention is 100 parts by weight of the paste sol, such as PVC sol or PVC powder, or liquid or powdery PU, ACRYL, EVA having a melting temperature ranging from 80 to 150 ℃ 10 to 10 parts by weight of DOP, 10 to 80 parts by weight of the antistatic special plasticizer, 1 to 5 parts by weight of the stabilizer and 1 to 10 parts by weight of the liquid antistatic, and the raw materials thus prepared are 3 to 3 in a high speed mixer at 300 to 800 rpm. It is prepared by mixing for 10 minutes, wherein the synthetic resin binder such as PVC sol is preferably selected to have a polymerization degree of 960 to 1700.

In order to coat the antistatic treated synthetic resin binder thus prepared on the surface of the thin antistatic chip, first, 100 parts by weight of the antistatic chip is added to a mixer rotating at a speed of 300 to 600 rpm to maintain a temperature of 30 to 80 ° C. After stirring and preheating for 5 to 15 minutes, 10 to 40 parts by weight of an antistatic synthetic resin binder prepared according to the above-described method, such as PVC sol, was added dropwise in small portions over 5 to 15 minutes. The frictional heat and the preheated heat in the mixer allow the binder PVC sol to fill the rough surface of the chip, and at the same time the binder is gelled and dried to uniformly coat the surface of the colored antistatic chip.

Looking at the manufacturing process of the upper material according to the present invention, which is briefly shown in FIG. 2 as the accompanying drawings, first, an antistatic treated synthetic resin binder prepared according to the method of the present invention, for example, a colored antistatic chip coated with PVC sol coated raw material It is arranged on the base material such as mineral paper, asbestos paper, European fiber paper, general woven fabric, or woven fabric made of antistatic yarn, which is fed into the unit 2 and unloaded from the unwinding roll 1, As shown, according to the desired design, the raw material chips are divided into 1-5 kinds of colors and stacked in a thickness of 1 to 6 mm, and then they are maintained at a temperature of 150 to 250 ° C. in the heating oven (3). Heat for 5 minutes to allow gelation. Then, by rolling with a pressure of 5 to 50kg / ㎠ with a rolling press (4) heated to a temperature of 80 to 250 ℃ temperature is formed into a sheet having a thickness of 0.5 to 3.0mm, wherein the rolling is 5 seconds to 1 It is preferable to carry out the powdering.

If necessary, the sheet obtained by heat rolling as described above is coated with a surface treatment agent such as ACRYL or PU with an antistatic agent or a PVC sol, or a PYC, PU or ACRYL film with an antistatic agent is heated with plywood. After drying, the sheet may be dried and wound up to prepare another sheet having a surface layer having an antistatic effect on the sheet.

Here, reference numeral 5 denotes a surface treatment unit, 6 denotes a drying oven, and 7 denotes a winding roll.

The material of the present invention prepared as described above can give various patterns to the material by arranging the chips having different colors during the arrangement of the material in the shape of the material, and also have an excellent antistatic effect rate compared to the conventional material. As a good medium walking material, the mechanism by which the material according to the present invention to extract the excellent anti-swapping effect is described in relation to the product structure as follows. That is, the colored antistatic chip used to manufacture the upper material according to the present invention is provided with an antistatic effect in the chip itself, so that various patterns formed on the upper material according to its color are completely worn out by long use. In addition, the antistatic effect of the material is further doubled because the antistatic special plasticizer and the liquid antistatic agent are added to the synthetic resin binder such as PVC sol coated on the chip surface as well as the upper surface of the chip. The antistatically treated synthetic binder completely fills the chip and the chip completely, so that the upper portion forms a smooth sheet-like state in which the chips are embedded between the synthetic resin binder. Antistatic agent is easily transferred to the surface, so excellent charging The effect would not have the advantage of being capable of exerting a uniformly continuous.

Hereinafter, the present invention will be described in detail based on production examples and examples.

[Production Example 1]

[Manufacture of Colored Antistatic Chip]

To 100 parts by weight of PVC resin having a polymerization degree of 700, DOP 35 parts by weight, filler 300 parts by weight, stabilizer 5 parts by weight, 5 parts by weight of nonionic antistatic agent and an appropriate amount of pigment were added and mixed in a Banbury Mixer. The calender was rolled to form a sheet having a thickness of 1.2 mm, and the sheet was pulverized to produce a chip having a particle size of 0.6 mm.

[Production Example 2]

[Preparation of antistatic PVC sol]

100 parts by weight of a PVC sol having a polymerization degree of 1300, 20 parts by weight of DOP, 40 parts by weight of an antistatic special plasticizer, 5 parts by weight of a stabilizer, and 4 parts by weight of a liquid antistatic agent were added to a mixer, and mixed for 10 minutes at a speed of 600 rpm. An antistatically treated PVC sol was prepared as a binder.

[Manufacture example 3]

[Coating of Antistatic PVC Sol]

100 parts by weight of the colored antistatic chip prepared in Preparation 1 was added to the mixer and stirred and heated for 10 minutes at a speed of 500 rpm under 130 ° C. ambient temperature, and then the antistatic PVC sol prepared in Preparation Example 2 was added thereto. The coloring antistatic method was coated by adding 30 parts by weight in small portions over 10 minutes.

EXAMPLE

Using the chips manufactured in Preparation Example 3 as a raw material, the colors of the chips are classified according to the desired design, arranged and laminated on a woven fabric made of electrostatic yarn, and then heated for 3 minutes in an oven at 200 ° C., followed by heating at 180 ° C. A rolling press heated to a temperature of 35 kg / cm 2 was applied for 45 seconds to delay and then dried. After cooling, it was wound up to prepare a long picture material.

Claims (7)

In stacking chips on a substrate and heating and pressurizing them to produce an antistatic effect, the surface of the colored antistatic chip is coated with an antistatic synthetic resin binder, and the chips are formed on the substrate with a thickness of 1 to 6 mm. After laminating to a gel, it was gelled by heating in an oven at 150 to 250 ° C. for 1 to 5 minutes, and then applied at a pressure of 5 to 50 kg / cm 2 using a rolling press at a surface temperature of 80 to 250 ° C. for 5 seconds to 1 minute Method for producing a top material having an antistatic effect, characterized in that by. The method of claim 1, wherein the coating of the synthetic resin binder is added to 100 parts by weight of the antistatic chip in a rotary mixer of the rotational speed 300 to 600rpm, preheated by stirring for 5 to 15 minutes while maintaining the ambient temperature of 30 to 80 ℃, 10 to 40 parts by weight of an antistatically treated synthetic resin binder is added dropwise to the preheated chip surface in small portions over 5 to 15 minutes, followed by gelation and drying. The antistatic synthetic resin binder is a polyvinyl chloride sol or powder having a degree of polymerization of 900 to 1700, and a liquid phase having a melting temperature of 80 to 150 ° C and compatible with polyvinyl chloride. 10 to 50 parts by weight of dioctylphthalate, 10 to 80 parts by weight of an antistatic special plastic agent, and 1 to 10 parts by weight of a stabilizer were added to 100 parts by weight of a polyurethane, acrylic or vinyl acetate resin in powder form, and then to 300 to 800 rpm. A method characterized in that it is by stirring and mixing for 3 to 10 minutes. In stacking chips on a substrate and heating and pressurizing them to produce an antistatic effect, the surface of the colored antistatic chip is coated with an antistatic synthetic resin binder, and the chips are formed into a thickness of 1 to 6 mm. After laminating to the gel, it was heated and gelled in an oven at 150 to 250 ° C. for 1 to 5 minutes, and then rolled at a pressure of 5 to 50 kg / cm 2 using a rolling press at a surface temperature of 80 to 250 ° C. for 5 seconds to 1 minute. By coating a polyvinyl chloride sol, acrylic, or polyurethane with an antistatic agent on the sheet, except for the sheet, or by heating plywood of a polyvinyl chloride, polyurethane or acrylic film with an antistatic agent added thereto. Method for producing a top material having an antistatic effect, characterized in that. Antistatic chip is laminated with an antistatic chip on a substrate having an antistatic effect, coated with an antistatic treated synthetic resin binder on a substrate woven with mineral paper, asbestos paper, glass fiber paper, general woven fabrics or antistatic yarns. A material having an antistatic effect, characterized in that the colored antistatic chip is laminated to a thickness of 0.5 to 3.0 mm. 6. The liquid or powdery polyolefin according to claim 5, wherein the antistatic synthetic resin binder has a polyvinyl chloride sol or powder having a degree of polymerization of 900 to 1700, and is compatible with polyvinyl chloride having a melting temperature of 80 to 150 deg. 10 to 50 parts by weight of dioctylphthalate, 10 to 80 parts by weight of antistatic special plasticizer, 1 to 5 parts by weight of stabilizer and 1 to 10 parts by weight of liquid antistatic agent are added to 100 parts by weight of urethane, acrylic or vinyl acetate resin, followed by stirring and mixing. Characterized in that it is made. In the upper material having an antistatic effect by laminating an antistatic chip on a substrate, a coloring coated with an antistatic treated synthetic resin binder on a substrate woven with mineral paper, asbestos paper, glass fiber paper, general woven fabric, or antistatic yarn After stacking the antistatic chip to a thickness of 0.5 to 3.0mm, the upper material having an antistatic effect, characterized in that a surface layer made of polyvinyl chloride, polyurethane or acrylic to which an antistatic agent is added is formed thereon.

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