KR930008406B1 - Table for sewing machine - Google Patents
Table for sewing machine Download PDFInfo
- Publication number
- KR930008406B1 KR930008406B1 KR1019880009891A KR880009891A KR930008406B1 KR 930008406 B1 KR930008406 B1 KR 930008406B1 KR 1019880009891 A KR1019880009891 A KR 1019880009891A KR 880009891 A KR880009891 A KR 880009891A KR 930008406 B1 KR930008406 B1 KR 930008406B1
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- weight
- sewing machine
- waste
- resin
- durability
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B21/00—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board
- B32B21/04—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board comprising wood as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B21/08—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board comprising wood as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Laminated Bodies (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
Description
제 1 도는 판재 피복용 수지조성물을 용융, 혼련하기 위한 장치의 개략도.1 is a schematic diagram of an apparatus for melting and kneading a resin composition for coating a sheet material.
제 2 도는 용융, 혼련된 수지 조성물로 판재를 피복하기 위한 프레스 장치의 개략도.2 is a schematic view of a press apparatus for coating a plate with a molten and kneaded resin composition.
본 발명은 폐품을 이용한 공업용 재봉틀 테이블에 관한 것으로서, 보다 구체적으로는 열가소성인 폐수지, 분말상 연탄재, 운모분 및 안료 등으로 조성된 수지성 피복조성물을 용융혼련하여 판재의 전표면을 피복하는 것에 의해 제조되는 내구성, 내열성 및 변형 저항성이 우수한 공업용 재봉틀 테이블에 관한 것이다.The present invention relates to an industrial sewing machine table using waste products, and more particularly, by melting and kneading a resin coating composition composed of thermoplastic waste resin, powdery briquettes, mica powder and pigments to coat the entire surface of the sheet material. The present invention relates to an industrial sewing machine table having excellent durability, heat resistance, and deformation resistance.
종래, 합판에 수지를 함침시킨 보편적인 공업용 재봉틀 테이블은 내마모성 및 내충격성이 불량하여 뒤틀림 변형이 자주 발생하고 내구성이 결여되기 때문에 사용도중 테이블의 균열이나 변형으로 인하여 테이블면에 장착된 기기의 변형까지도 초래하는 등의 결함이 있으며, 또한 내구성을 향상시키기 위하여 수지성 테이블을 사용하는 예도 있으나, 이것 역시 뒤틀림등의 변형에도 약한 단점이 있는 것이었다.Conventional industrial sewing machine tables impregnated with resin in plywood have poor abrasion resistance and impact resistance, so that warp deformation frequently occurs and lack of durability, and even deformation of the device mounted on the table surface due to cracking or deformation of the table during use There is a defect such as to cause, and there is also an example of using a resin table to improve the durability, but this also had a weak disadvantage in deformation such as warping.
따라서, 본 발명자는 상기한 바와 같은 선행기술의 제결함을 감안하여 내구성 및 내마모성등이 우수하고, 비틀림등의 변형이 없고, 사용수명이 긴 공업용 재봉틀 테이블을 얻기 위하여 장기간에 걸쳐 심도 깊은 연구를 거듭한 결과, 열가소성 폐수지, 분말상 연탄재, 운모분 및 안료 등을 적절히 조성하고 용융혼련하여 준비한 용융 피복재를 판재의 전표면에 피복하면 소망 특성의 공업용 재봉틀 테이블을 달성할 수 있음을 발견하게 되었다.Accordingly, the present inventors have conducted in-depth studies over a long period of time in order to obtain an industrial sewing machine table which is excellent in durability, abrasion resistance, and the like, and has no deformation such as torsion, etc. in view of the deficiencies of the prior art as described above. As a result, it has been found that an industrial sewing machine table with desired characteristics can be achieved by coating the entire surface of the plate with a molten coating material prepared by appropriately preparing and melt-kneading thermoplastic waste resin, powdery briquette, mica powder and pigment.
그러므로, 본 발명의 공업용 재봉틀 테이블은 열가소성 폐수지 70중량%, 200메쉬 이하의 연탄재 25중량%, 운모분 5중량% 이하 및 소량의 안료로 조성된 조성물을 200-500℃의 온도에서 용융혼련하여 판재의 전표면에 피복함으로써 이루어진 것을 특징으로 한다.Therefore, the industrial sewing machine table of the present invention melt-kneaded the composition composed of 70% by weight of thermoplastic waste resin, 25% by weight of briquettes of 200 mesh or less, 5% by weight of mica powder and a small amount of pigment at a temperature of 200-500 ° C. It is made by covering the whole surface of a board | plate material.
본 발명에 의하면, 공업용 재봉틀 테이블은 다음의 공정에 의하여 제조된다.According to this invention, an industrial sewing machine table is manufactured by the following process.
제 1 공정 : 열가소성 폐수지 70중량%, 200메쉬 이하의 분말상 연탄재 25중량%, 5중량% 이하의 운모분 및 소량의 안료로 이루어진 수지성 피복조성물을 용융혼련하는 공정, 및First step: melting and kneading a resinous coating composition composed of 70% by weight of thermoplastic waste resin, 25% by weight of powdery briquettes of 200 mesh or less, 5% by weight of mica and a small amount of pigment, and
제 2 공정 : 용융혼련된 반죽상의 수지성 피복조성물로 판재의 전표면을 피복하는 공정.Second step: A step of covering the entire surface of the sheet with a melt-kneaded dough-like resinous coating composition.
본 발명에 있어서, 폐수지로는 폐폴리에틸렌, 폐폴리프로필렌, 폐폴리염화비닐 등의 열가소성 폐수지가 사용되며, 수지성 피복조성물의 용융혼련온도는 사용되는 폐수지의 종류에 따라 200-500℃의 범위내에서 조절하는 것이 바람직하다.In the present invention, as waste resin, thermoplastic waste resins such as waste polyethylene, waste polypropylene and waste polyvinyl chloride are used, and the melt kneading temperature of the resin coating composition is in the range of 200-500 ° C. according to the kind of waste resin used. It is preferable to adjust at.
연탄재 분말은 용융폐수지와 혼합되어 내열성과 내구성을 향상시키고, 다공질이어서 제품의 경량화를 달성케 한다. 만일, 그 함량이 25중량%를 초과하게 되면, 내열성은 향상되나 폐수지와 불균일하게 혼합되어 균열을 초래하고, 25중량% 이하에서는 가격상승을 초래한다.The briquette powder is mixed with the molten waste resin to improve heat resistance and durability, and it is porous to achieve the weight reduction of the product. If the content exceeds 25% by weight, the heat resistance is improved, but it is mixed unevenly with the waste resin to cause cracking, and below 25% by weight causes a price increase.
운모분말 역시 용융폐수지와 혼합되어 내열성 및 내구성을 향상시킨다. 만일 그 함량이 5중량%를 초과하게 되면 내열성은 향상되나 내구성이 떨어지고 가격상승을 초래하므로 부적합하다.Mica powder is also mixed with molten waste resin to improve heat resistance and durability. If the content exceeds 5% by weight, the heat resistance is improved, but the durability is inferior and it is unsuitable because it leads to a price increase.
안료의 종류 및 함량은 제품의 소망색상에 따라 적의 선정할 수 있다.The type and content of the pigment can be appropriately selected according to the desired color of the product.
상기한 바와 같은 본 발명을 실시예의 방법으로 보다 구체적으로 설명하기로 한다.The present invention as described above will be described in more detail by way of example.
[실시예]EXAMPLE
폐폴리에틸렌과 폐폴리프로필렌으로 된 폐수지 70중량%, 200메쉬 체를 통과한 연탄재 25중량%, 운모분말 4중량% 및 안료 1중량%로 조성된 수지조성물을 제 1 도에 도시된 바와 같은 스크류이송 방식 용융장치에 투입하고 200-500℃의 온도에서 용융혼련하여 반죽상태의 피복재를 제조하고 나서, 제 2 도에 도시하는 바와 같이 내부에 냉각수가 순환하는 금형이 착설된 프레스 장치에서 상기 금형위에 반죽상 피복재로 1차 판면을 깔고 그 위에 합판을 둔 다음, 합판위에 반죽상 피복재를 덮고 프레스를 작동하여 강제성형하는 것에 의하여 재봉틀 테이블을 제조 하였다.A resin composition composed of 70% by weight of waste polyethylene and waste polypropylene, 25% by weight of briquettes passed through a 200 mesh sieve, 4% by weight of mica powder, and 1% by weight of a pigment was screwed as shown in FIG. After feeding into a transfer melting apparatus and melt-kneading at a temperature of 200-500 ° C. to prepare a dough-like coating material, as shown in FIG. 2, a mold in which a cooling water is circulated therein is placed on the mold in a press apparatus. The sewing machine table was manufactured by laying a primary plate with a dough-like coating material, placing a plywood thereon, then covering the dough-like coating material on the plywood, and forcing the molding by pressing a press.
이와 같이 제조된 공업용 재봉틀 테이블을 시험방법 KS M 3006('88)에 의거 시험한바, 인장강도가 122Kgf/㎠이고 신장율이 22%로 나타났으며, 또한 뒤틀림이 없고 외부의 충격으로 인한 균열등이 없으며 내구성 및 내한성이 뛰어나 테이블 상면에 장착한 재봉틀기의 안정성을 꾀할 수 있었다.The industrial sewing machine table manufactured as described above was tested according to the test method KS M 3006 ('88). The tensile strength was 122Kgf / ㎠ and the elongation was 22%, and there was no distortion and cracks due to external impact Also, it has excellent durability and cold resistance, and it was possible to achieve stability of the sewing machine mounted on the table top.
또한 시험된 테이블의 피복재 구성을 확인하기 위하여, 700℃의 전기로내에서 1시간동안 작열하여 중량감소량으로 피복재의 성분함량을 추정하였으며 그외 무기질은 연탄재, 운모와 폐수지에 포함되었든 성분들로서 개별분석이 곤란하여 위의 작열잔사를 총무기질함량으로 산출하였다. 실험율 10회 실시하여 얻은 값을 평균한 결과 105±2℃에서 2시간 동안 건조시에 감소된 양(주로 수분)은 0.65%이고 700℃에서 1시간 동안 작열시에 감소된 수지량은 69.3%이며, 나머지 30.1%는 무기질임이 밝혀졌다.In addition, in order to confirm the coating composition of the tested table, it was burned for 1 hour in an electric furnace at 700 ° C to estimate the component content of the coating material by weight reduction.Other minerals are difficult to analyze individually as components contained in briquettes, mica and waste resin. The above burning residue was calculated as the total weapons content. As a result of averaging the values obtained by ten experiments, the amount (mainly moisture) decreased after drying for 2 hours at 105 ± 2 ° C was 0.65% and the amount of resin decreased when burning for 1 hour at 700 ° C was 69.3%. The remaining 30.1% was found to be mineral.
위에서 설명한 바와 같이, 본 발명은 열가소성 폐수지와 연탄재 등의 폐품을 주원료로 하여 고품질의 재봉틀 테이블을 수득할 수 있도록 한 것으로서, 경제성을 일층 고양시켜줄 뿐만 아니라 폐품활용에도 큰 기여를 하는 신규유용의 발명이라 할 것이다.As described above, the present invention is to obtain a high-quality sewing machine table using waste materials such as thermoplastic waste resin and briquette materials as the main raw materials, which not only enhances economic efficiency but also contributes to the utilization of waste products. Will be called.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019880009891A KR930008406B1 (en) | 1988-08-03 | 1988-08-03 | Table for sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019880009891A KR930008406B1 (en) | 1988-08-03 | 1988-08-03 | Table for sewing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR900002931A KR900002931A (en) | 1990-03-23 |
| KR930008406B1 true KR930008406B1 (en) | 1993-08-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019880009891A KR930008406B1 (en) | 1988-08-03 | 1988-08-03 | Table for sewing machine |
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| Country | Link |
|---|---|
| KR (1) | KR930008406B1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100227305B1 (en) * | 1997-08-28 | 1999-11-01 | 이재호 | Method for manufacturing forms using waste synthetic resin |
-
1988
- 1988-08-03 KR KR1019880009891A patent/KR930008406B1/en not_active IP Right Cessation
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| Publication number | Publication date |
|---|---|
| KR900002931A (en) | 1990-03-23 |
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