KR20020065280A - plastic foam products - Google Patents
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- KR20020065280A KR20020065280A KR1020010005715A KR20010005715A KR20020065280A KR 20020065280 A KR20020065280 A KR 20020065280A KR 1020010005715 A KR1020010005715 A KR 1020010005715A KR 20010005715 A KR20010005715 A KR 20010005715A KR 20020065280 A KR20020065280 A KR 20020065280A
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- foam
- foamed
- foaming
- molded product
- skin
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
- B29C44/12—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements
- B29C44/1209—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements by impregnating a preformed part, e.g. a porous lining
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
- B29C66/729—Textile or other fibrous material made from plastics
- B29C66/7294—Non woven mats, e.g. felt
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/80—Head-rests
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
- B29L2031/3005—Body finishings
- B29L2031/3023—Head-rests
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Transportation (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
Description
본 발명은 발포성형제품에 관한 것으로서, 더욱 상세하게는 통기성을 갖는 표피체의 내부공간에 발포액을 주입시켜 발포되게 하여 발포성형제품을 만들 때, 주입되는 발포액이 표피체의 조직에 함침되어 경화되거나 조직을 투과하여 표면으로 누출되어 경화되는 것이 방지됨은 물론 제조원가가 절감되고 쿠션 및 통기성이 양호하게 되는 발포성형제품에 관한 것이다.The present invention relates to a foam molded product, and more particularly, when a foamed product is made by injecting a foamed liquid into an inner space of a breathable epidermal body to make a foamed molded product, the injected foamed liquid is impregnated into the tissue of the epidermal body. The present invention relates to a foamed molded article that is hardened or penetrated through tissue and prevents leakage to the surface, as well as reduced manufacturing cost and good cushioning and breathability.
일반적으로 차량용 좌석의 헤드레스트(머리받침)등과 같은 발포성형제품은 통기성을 갖는 직물지등을 원하는 형태로 봉제하여 되는 표피체의 내부에 우레탄등의 발포액을 주입시켜 발포되게 함으로써 얻게 되었는데, 이러한 제품을 얻기 위해서는 발포중에 발생되는 가스 및 표피체내에 들어 있는 공기가 외부로 배출되어야 되기 때문에 이를 위해서 표피체를 통기성이 있는 직물지로 만들었다.In general, foamed molded products such as headrests of car seats have been obtained by infusing foams such as urethane into the inside of the skin which is sewn into a desired form for breathable textile paper. In order to achieve this, the gas generated during foaming and the air contained in the epidermis must be discharged to the outside.
그런데, 직물지만으로 표피체를 만들 경우에는 가스 및 공기뿐만 아니라 초기에 주입되는 발포액이 미처 발포되기 전에 표피체에 함침 또는 표면으로 누출되어 경화되는 현상이 발생되므로, 이를 방지하기 위해 직물지의 내면에 우레탄품으로 만든 두께가 얇은 폼박재를 접착하여 만들었다.However, when the epidermal body is made of only the fabric, as a result of impregnation or leakage to the surface of the epidermal body before the foam is initially injected, as well as gas and air, the phenomenon occurs that hardening occurs. It was made by adhering a thin foam material made of urethane.
그러나, 상기 폼박재도 발포물이어서 다공성이기 때문에 초기에 주입되는 발포액이 폼박재를 통과하여 표피체에 함침되어 경화되는 현상이 완전히 방지되지 않게 되었으며, 또 품박재와 발포물사이에 대략 5mm 내외의 경화층이 형성되므로 그 두께에 비례하여 원료의 낭비가 많게 됨은 물론 쿠션기능이 저하되어 사용시 외표면에 접촉 또는 눌렀을 때 딱딱한 감촉을 주는등 많은 문제점이 있었다.However, the foam foil is also foamed and porous, so that the initially injected foam liquid is impregnated into the epidermis by passing through the foam foil and is hardly prevented from being completely prevented. Also, the foam foil is about 5 mm between the foam and the foam. Since a hardened layer is formed, there are many problems such as a lot of waste of raw materials in proportion to its thickness, as well as a decrease in cushioning function, which gives a hard texture when contacted or pressed on an outer surface during use.
따라서, 종래에는 발포액이 표피체에 함침되거나 쿠션기능이 저하되는 현상을 해소하기 위해, 폼박재의 내표면에 미세한 통기공이 형성된 폴리우레탄필름 또는 폴리염화비닐필름등과 같은 차폐필름을 접착시킨 표면재로 원하는 형태의 표피체를 만들어 그 내부에 발포액을 주입시켜 발포되게 하여 된 일체발포제품(국내특허 제71999호)가 있었다.Accordingly, in order to solve the phenomenon in which the foaming liquid is impregnated into the epidermis or the cushion function is deteriorated, a shielding film such as a polyurethane film or a polyvinyl chloride film having fine ventilation holes is formed on the inner surface of the foam foil material. There was an integrally foamed product (Domestic Patent No. 71999) in which a skin material having a desired form was used as a surface material and foamed by injecting a foam liquid therein.
그러나, 상기 일체발포제품은 비록 경화층이 발생되지 않게 되어 쿠션이 양호하고 원료의 소모가 감소되는 등의 장점은 있지만, 발포액이 폼박재를 통과하는 것을 방지하기 위해 그 내표면에 접착하는 차폐필름이 고가의 폴리우레탄인 경우에는 제조원가의 상승을 초래하게 되었으며, 또 저가의 폴리염화비닐인 경우에는 발포물과의 접착성이 불량하기 때문에 표면처리를 하여야 되므로 별도의 표면처리공정이 추가됨에 따라 역시 제조원가의 상승을 초래하게 되었다.However, although the integrally foamed product has advantages such that a hardened layer is not generated and the cushion is good and the consumption of raw materials is reduced, shielding is adhered to the inner surface of the foam to prevent the foam liquid from passing through the foam foil. If the film is an expensive polyurethane, it will lead to an increase in manufacturing cost, and in the case of a low-cost polyvinyl chloride, since the adhesiveness with the foam is poor, the surface treatment must be performed. It also led to an increase in manufacturing costs.
그리고, 표면재를 제단하여 원하는 형태의 표피체로 만들기 위해 재봉을 하면, 재봉실이 차페필름을 관통하여 박아지는 과정에서 실이 관통할 때 재봉공정상 관통되는 부분의 구멍이 파열 또는 확개되는 현상이 발생되기 때문에 재봉선 부분에서 발포액이 표면으로 누출되는 폐단도 있는 것이다.Then, when sewing to make the epidermal body of the desired shape by cutting the surface material, when the thread penetrates in the process of sewing thread penetrates through the chafe film, the hole of the part penetrated in the sewing process is broken or expanded. Because of this, there is also a closed end where the foam liquid leaks from the seam.
특히, 표피체내의 공기나 발포시에 발생되는 가스는 차폐필름을 통과하여 배출되는 반면 발포액은 통과하지 못하게 하기 위해 차페필름에 미소한 통기공들을 형성한다고 되어 있으나, 이러한 미소공들은 그 기능상 크기가 매우 작게 필름의 전부분에 균일하게 형성하여야 되지만 미소공의 크기는 물론 필름의 재질이나 두께등을 감안하면 현실적으로 그 기능에 맞게 가공하는 것이 매우 어려우며, 또 폼박재와의 접착에 의해 부분적으로 막히게 되는 미소공들도 발생되므로 공기나 가스가 원활하게 배출되지 않아 제품불량이 속출되는등 많은 문제점들이 있는 것이다.In particular, air in the epidermis or gas generated during foaming is discharged through the shielding film, while forming fine ventilation holes in the shielding film to prevent the foaming liquid from passing through, but these micropores are functional in size. It is very small to uniformly form all parts of the film, but considering the size of the micropores as well as the material and thickness of the film, it is very difficult to realistically process it according to its function, and also partially blocked by adhesion to the foam foil material. Since micropores are generated, air or gas is not discharged smoothly and there are many problems such as poor product.
본 발명은 종래의 상기와 같은 문제점들을 감안하여 발명된 것으로서, 그 목적은 쿠션이 양호하고 제품불량이 발생하지 않는 발포성형제품을 제공하는 것이다.The present invention has been invented in view of the above problems in the related art, and an object thereof is to provide a foamed molded product having a good cushion and no product defects.
본 발명의 다른 목적은, 제조가 용이하고 제조원가가 대폭 절감되는 발포성형제품을 제공함에 있다.Another object of the present invention is to provide a foam molded article that is easy to manufacture and the manufacturing cost is greatly reduced.
본 발명의 상기와 같은 목적들은, 통기성과 흡수성이 양호하여 공기나 가스는 원활하게 통과하게 되지만 초기에 주입되는 발포액은 흡수하여 통과가 저지되게 하며 가격이 저렴한 내피재를 폼박재의 내표면에 부착하여 만든 표피체내에 발포액을 주입시켜 발포되게 한 발포성형제품을 제공함으로써 달성된다.The above objects of the present invention, air and gas is smoothly passed through the good air permeability and absorption, but the initially injected foam liquid is absorbed to prevent passage and inexpensive inner shell material on the inner surface of the foam foil material It is achieved by providing a foamed molded product which is made to foam by injecting a foaming liquid into an adherent epidermis.
도 1은 본 발명 실시예에 의한 성형제품의 일예를 보인 일부 절개 사시도,1 is a partially cutaway perspective view showing an example of a molded product according to an embodiment of the present invention,
도 2는 동 성형제품의 일부분을 발췌한 확대 단면도,2 is an enlarged cross-sectional view of a part of the molded article;
도 3은 동 성형제품중 표피체의 일부분을 발췌 확대한 사시도.Figure 3 is an enlarged perspective view of a portion of the epidermal body of the molded product.
< 도면의 주요부분에 대한 부호의 설명 ><Description of Symbols for Major Parts of Drawings>
10 ; 표피체, 11 ; 표면재,10; Epidermal, 11; Surface Material,
12 ; 폼박재, 13 ; 내피재,12; Foam foil, 13; Endothelial Material,
20 ; 발포물, 30 ; 경화층.20; Foam, 30; Hardened layer.
이하, 본 발명 실시예에 의한 발포성형제품을 첨부된 도면에 의하여 상세히 설명하면 다음과 같다.Hereinafter, described in detail with reference to the accompanying drawings molded foam according to an embodiment of the present invention.
도 1은 본 발명 실시예에 의한 발포성형제품중 하나인 헤드레스트의 일예를 보인 일부 절취 사시도이고, 도 2는 동 일부를 발췌한 확대 단면도이며, 도 3은 동 실시예중 표피체의 일부분을 발췌하여 확대한 사시도이다.1 is a partially cutaway perspective view showing an example of a headrest that is one of the foam molded products according to an embodiment of the present invention, Figure 2 is an enlarged cross-sectional view taken from a portion of the same, Figure 3 is an extract of a portion of the epidermis in the embodiment This is an enlarged perspective view.
도면 부호중 (10)은 발포성형제품의 외주면을 감싸는 표피체이다.Numeral 10 denotes the outer skin surrounding the outer circumferential surface of the foamed product.
상기 표피체는, 직물지등과 같은 통기성을 갖는 표면재(11)와, 그 내표면에 부착되며 발포물로 되는 비교적 두께가 얇은 폼박재(12)와, 이 폼박재의 내표면에 부착되며 비교적 두께가 얇은 내피재(13)로 구성된다.The outer skin has a surface material 11 having air permeability such as woven paper and the like, a relatively thin foam foil 12 attached to the inner surface of the foam and foamed material, and a relatively thin thickness attached to the inner surface of the foam foil. Is composed of a thin inner skin 13.
폼박재(12)는, 통상 우레탄발포물로 된다.The foam foil 12 is usually a urethane foam.
내피재(13)는, 펄프로 만들어지는 한지나 휴지 또는 종이냅킨 등은 물론 각종 섬유나 부직포등과 같은 흡수성과 통기성이 양호하며 가격이 저렴하고 가공이 용이한 재료로 되며, 그 두께는 대략 0.5 - 1mm 정도로 하는 것이 적합하다.The inner skin material 13 is made of pulp, tissue paper or paper napkin made of pulp, as well as absorbent and breathable, inexpensive, and easy to process, such as various fibers and nonwoven fabrics. 1 mm is suitable.
상기 내피재는, 표면재(11)와 폼박재(12)를 접합할 때 함께 접합시켜 주면용이하게 접착된다.The said inner skin material is adhere | attached together easily when the surface material 11 and the foam foil material 12 are bonded together.
따라서, 내피재(13)가 내표면에 접착된 표면재(11)로 표피체(10)를 원하는 형태로 만들어 그 내부에 발포액을 주입하면 되는데, 이렇게 하면 주입되는 발포액의 압력에 의해 내부의 공기는 다공성인 내피재(13)와 폼박재(12) 및 표면재(11)를 원활하게 통과하여 배출된다.Therefore, the inner skin material 13 is made of a surface material 11 adhered to the inner surface of the skin body 10 to a desired shape, and then the foaming liquid is injected into the inside of the inner surface by the pressure of the injected foaming liquid. Air is smoothly discharged through the porous inner shell 13, the foam foil 12 and the surface material (11).
그러나, 초기에 주입되어 상기 내피재(13)에 접촉되는 발포액은 흡수성이 양호한 이 내피재에 흡수되면서 거의 동시에 발포가 진행되기 때문에, 이때 발생되는 가스는 공기와 함께 통과하여 표피체(10)의 외부로 배출되지만 발포액은 통과하지 않게 되는 것이다.However, since the foaming liquid initially injected and contacting the inner skin material 13 is absorbed by the inner skin material having good absorbency and foaming proceeds at the same time, the gas generated at this time passes through the air together with the epidermal body 10. It is discharged to the outside of the foaming liquid will not pass through.
이에 따라, 발포액이 표피체(10)에 함침되거나 외표면으로 누출되어 경화되는 현상이 완전히 해소된다.As a result, the phenomenon in which the foam liquid is impregnated into the epidermal body 10 or leaks to the outer surface and is cured is completely eliminated.
그리고, 초기에 주입되어 내피재(13)에 흡수된 상태로 발포되는 발포액에 의해 발포물(20)과 상기 내피재사이에는 경화층(30)이 형성되지만, 이 경화층은 내피재 두께의 2분의1정도가 되므로 그 두께는 종래의 내표면이 폼박재로 된 표피체내에 발포물을 주입하여 발포되게 하였을 때 대략 5mm 정도로 형성되던 경화층 두께의 10분의1 정도인 대략 0.5mm 내외에 불과하기 때문에 발포물(20)의 쿠션이 그대로 유지된다.In addition, although the cured layer 30 is formed between the foam 20 and the inner skin material by the foam liquid initially injected and foamed in the absorbent material 13, the cured layer has a thickness of the inner skin material. Since the thickness is about one-half, the thickness is about 0.5 mm, which is about one tenth of the thickness of the cured layer formed when the inner surface is foamed by injecting foam into the foam body skin. Since only the cushion of the foam 20 is maintained as it is.
한편, 상기의 실시예에서는 내피재(13)가 펄프나 섬유로 만들어 지거나 또는 부직포로 되는 것을 그 예로 하였으나, 이에 한정되는 것은 아니며 이를 대체할 수 있는 것으로서 흡수성과 통기성이 양호한 재료을 사용하는 경우에도 본 발명의 권리에 속하게 되는 것임은 물론이다.Meanwhile, in the above embodiment, the inner skin material 13 is made of pulp or fiber or made of a nonwoven fabric, but the present invention is not limited thereto, and the present invention is not limited thereto. Of course, it belongs to the rights of the invention.
이와 같은 본 발명 실시예에 의한 발포성형제품은, 통기성과 흡수성이 양호한 내피재를 내표면에 부착한 표피체를 사용함으로써, 초기에 주입되는 발포액이 내피재에 흡수되면서 발포되기 때문에 내피재와 발포물이 서로 일체화되어 박리현상이 방지됨은 물론 발포액이 내피재를 통과하여 표피체에 함침되거나 또는 그 외표면으로 누출되는 현상이 완전히 제거되어 양호한 제품을 얻게되는 특징이 있다.The foamed molded article according to the embodiment of the present invention uses an outer skin material having a good breathability and absorbent inner skin material attached to the inner surface, so that the foamed liquid initially injected is foamed while being absorbed by the inner skin material. As the foams are integrated with each other to prevent the peeling phenomenon, the foaming liquid is impregnated into the epidermis or leaked to the outer surface through the inner skin material and is completely removed to obtain a good product.
또한, 내부에 형성되는 경화층은 그 두께가 매우 얇기 때문에 발포물의 쿠션이 그대로 전달됨에 따라, 외부 접촉 또는 눌렀을 때 감촉이 매우 부드러워 쾌적하게 됨은 물론 두께가 얇은 경화층이 쿠션을 장기간 유지시켜 주게된다.In addition, since the inner layer of the cured layer is very thin, as the cushion of the foam is transferred as it is, the touch is very soft and comfortable when the outer contact or press is pressed, and the thin layer of the cured layer maintains the cushion for a long time. .
그리고, 경화층의 두께가 매우 얇기 때문에 발포액의 사용량이 감소됨은 물론 내피재에 별도의 미소한 통기공을 형성하지 않아도 되는므로 제조가 용이하고 가격이 저렴한 재료를 사용함에 따라 생산비용이 크게 절감되는 잇점도 있다.In addition, since the thickness of the hardened layer is very thin, the amount of the foamed liquid is reduced, and there is no need to form a separate minute vent in the inner skin material, thereby greatly reducing the production cost by using a material that is easy to manufacture and inexpensive. There are also advantages.
또, 표피체를 원하는 형태로 만들기 위해 봉제를 할때 실이 내피재를 관통하여도, 내피재의 성질상 실이 관통하여 형성되는 구멍이 파열 또는 확개되는 현상이 발생되지 않기 때문에 구멍을 통한 발포액의 누출이 방지되는 장점도 있다.In addition, even when the thread penetrates the inner skin during sewing to make the cuticle the desired shape, the foaming liquid through the hole does not occur due to the rupture or expansion of the hole formed through the thread due to the properties of the inner skin. It also has the advantage of preventing leaks.
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020010005715A KR20020065280A (en) | 2001-02-06 | 2001-02-06 | plastic foam products |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020010005715A KR20020065280A (en) | 2001-02-06 | 2001-02-06 | plastic foam products |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR2020010005368U Division KR200233987Y1 (en) | 2001-02-28 | 2001-02-28 | plastic foam products |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR20020065280A true KR20020065280A (en) | 2002-08-13 |
Family
ID=27693497
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020010005715A KR20020065280A (en) | 2001-02-06 | 2001-02-06 | plastic foam products |
Country Status (1)
| Country | Link |
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| KR (1) | KR20020065280A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100636600B1 (en) * | 2005-06-10 | 2006-10-19 | 이정해 | Foaming expansion molding article and manufacturing method whichof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03133624A (en) * | 1989-10-19 | 1991-06-06 | Inoue Mtp Co Ltd | Skin material for seat |
| JPH0752332A (en) * | 1993-08-18 | 1995-02-28 | Toyobo Co Ltd | Composite skin material |
| EP0819574A2 (en) * | 1996-07-19 | 1998-01-21 | R. Schmidt Gmbh | Headrest for automotive vehicles |
| JPH1042994A (en) * | 1996-07-31 | 1998-02-17 | Ikeda Bussan Co Ltd | Surface leather material integrally foamed headrest and its foaming method |
-
2001
- 2001-02-06 KR KR1020010005715A patent/KR20020065280A/en not_active Application Discontinuation
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03133624A (en) * | 1989-10-19 | 1991-06-06 | Inoue Mtp Co Ltd | Skin material for seat |
| JPH0752332A (en) * | 1993-08-18 | 1995-02-28 | Toyobo Co Ltd | Composite skin material |
| EP0819574A2 (en) * | 1996-07-19 | 1998-01-21 | R. Schmidt Gmbh | Headrest for automotive vehicles |
| JPH1042994A (en) * | 1996-07-31 | 1998-02-17 | Ikeda Bussan Co Ltd | Surface leather material integrally foamed headrest and its foaming method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100636600B1 (en) * | 2005-06-10 | 2006-10-19 | 이정해 | Foaming expansion molding article and manufacturing method whichof |
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