KR20030017793A - Micro-holed artificial PVC leathers and PVC film laminated sheets and those manufacturing methods - Google Patents
Micro-holed artificial PVC leathers and PVC film laminated sheets and those manufacturing methods Download PDFInfo
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- KR20030017793A KR20030017793A KR1020010050815A KR20010050815A KR20030017793A KR 20030017793 A KR20030017793 A KR 20030017793A KR 1020010050815 A KR1020010050815 A KR 1020010050815A KR 20010050815 A KR20010050815 A KR 20010050815A KR 20030017793 A KR20030017793 A KR 20030017793A
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
- B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
- B26F1/02—Perforating by punching, e.g. with relatively-reciprocating punch and bed
- B26F1/06—Perforating by punching, e.g. with relatively-reciprocating punch and bed with punching tools moving with the work
- B26F1/10—Roller type punches
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/36—Removing material
- B23K26/38—Removing material by boring or cutting
- B23K26/382—Removing material by boring or cutting by boring
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
- B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
- B26F1/16—Perforating by tool or tools of the drill type
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
- B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
- B26F1/24—Perforating by needles or pins
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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
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/08—Layered products comprising a layer of synthetic resin 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
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
- B32B27/304—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl halide (co)polymers, e.g. PVC, PVDC, PVF, PVDF
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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
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/0004—Cutting, tearing or severing, e.g. bursting; Cutter details
Abstract
Description
본 발명은 통기성 PVC 레자 또는 PVC필름 접합 쉬트 및 그 제조방법에 관한 것이다.The present invention relates to a breathable PVC leather or PVC film bonding sheet and a method of manufacturing the same.
일반적으로 종래의 PVC 레자 또는 PVC필름 접합 쉬트는 여러분야에서 사용되어 왔으나 그 편리함에도 불구하고 통기성이 매우 나빴다.In general, conventional PVC leather or PVC film bonding sheet has been used in all of you, but despite its convenience, the breathability was very bad.
이 종래의 PVC 레자 또는 PVC필름 접합 쉬트를 제작하는 과정은 압출에 의해서 PVC 레자를 형성하거나 형성된 PVC 필름과 수지 폼(foam)을 열압착 롤러를 통과 시켜서 라미네이팅 하는 것이다.The process of manufacturing the conventional PVC leather or PVC film bonding sheet is to form a PVC leather by extrusion or to laminate the formed PVC film and resin foam (foam) through a thermal compression roller.
이러한 일련의 공정을 거쳐서 생산되는 PVC 레자 또는 PVC필름 접합 쉬트는 통기성을 제공하지 못한다는 단점이 있다.PVC leather or PVC film bonding sheet produced through this series of processes has the disadvantage that it does not provide breathability.
한편 통기성 마이크로 홀을 제공하는 공정을 거쳐서 생산되는 PVC 레자 또는 PVC필름 접합 쉬트는 종래의 PVC 레자 또는 PVC필름 접합 쉬트가 가지고 있는 단점을 한번에 제거하여 준다.Meanwhile, PVC leather or PVC film bonding sheet produced through the process of providing breathable micro holes eliminates the disadvantages of conventional PVC leather or PVC film bonding sheet at once.
즉, 방수성 및 통기성을 필요로하는 분야인 바닥재, 가구재, 의류 및 건축재에 적용할수 있는 획기적인 제품 및 제조 방법이다.In other words, it is a breakthrough product and manufacturing method that can be applied to flooring, furniture, clothing and building materials that are waterproof and breathable.
따라서 본 발명은 이상과 같은 종래의 PVC 레자 또는 PVC필름 접합 쉬트에마이크로 홀을 가공하여 통기성 PVC 레자 또는 PVC필름 접합 쉬트 및 그 제조기술을 제공함에 그 목적이 있는 것이다.Therefore, an object of the present invention is to provide a breathable PVC leather or PVC film bonding sheet and its manufacturing technology by processing a micro hole in the conventional PVC leather or PVC film bonding sheet as described above.
상기의 목적을 달성하기 위하여 본 발명은 PVC 레자를 풀어주는 롤이 한쪽에 위치하여 있고 다른 한쪽에는 PVC 레자를 감아주는 롤이 위치한다.In order to achieve the above object, the present invention is a roll for releasing the PVC leather is located on one side and the roll is wound on the other side of the PVC.
이 PVC 레자를 풀어주는 롤과 감아주는 롤 사이에 위치한 다수의 미세한 바늘을 일정한 간격으로 표면에 장착한 롤러 또는 다수의 직경 0.3-0.5 미리미터의 드릴을 장착한 드릴 척 어셈블리 또는 레이저 빔 어셈블리를 통과 하면서 일정한 간격으로 홀을 가공하게 된다.The micro-needles located between the unwinding and winding rolls of this PVC leather pass through a surface mounted roller or drill chuck assembly or laser beam assembly with multiple drills 0.3-0.5 mm in diameter. The holes are processed at regular intervals.
또한 본 발명의 다른 실시예로서, 한쪽에는 PVC필름을 풀어주는 롤이 위치하여 있고 다른 쪽에는 수지 폼(foam) 또는 부직포를 풀어주는 롤러가 위치하여 있으며, PVC 필름과 수지 폼 또는 부직포가 만나게 되는 부분의 PVC 필름의 상단에 히터를 장치한 라미네이팅 롤러를 설치해서 이 라미네이팅 롤러를 통과하는 PVC 필름과 PVC 필름 또는 부직포는 열접합이 된다.In addition, as another embodiment of the present invention, one side of the roll to release the PVC film is located and the other side of the roller to release the resin foam (foam) or nonwoven fabric is located, the PVC film and the resin foam or nonwoven fabric is to meet A laminating roller equipped with a heater is installed on top of the part of the PVC film so that the PVC film and the PVC film or nonwoven fabric passing through the laminating roller are thermally bonded.
다시 이 PVC 필름 접합 쉬트를 감아주는 롤과 라미네이팅 롤러 사이에 다수의 미세한 바늘을 일정한 간격으로 표면에 장착한 롤러 또는 다수의 직경 0.3-0.5 미리미터의 드릴을 장착한 드릴 척 어셈블리 또는 레이저 빔 어셈블리를 통과 하면서 일정한 간격으로 홀을 가공하게 되며, 홀 가공이 완료된 통기성 PVC 필름 접합 쉬트는 마지막 단계에서 완제품의 상태로서 롤에 감기게 된다.Again, between the roll and laminating roller winding this PVC film bonding sheet, a roller with a number of fine needles on the surface at regular intervals, or a drill chuck assembly or laser beam assembly with a drill with a diameter of 0.3-0.5 mm The hole is machined at regular intervals as it passes through, and the perforated PVC film bonding sheet is rolled onto the roll as a finished product in the last step.
본 발명품은 가공된 직경 0.1-0.3 미리미터의 홀에서는 표면의 물방울이 표면장력에 의해서 홀을 통과하지 못하며, 수증기는 이 사이즈의 홀을 통과해서 숨쉬는 통기성 PVC 레자 또는 PVC필름 접합 쉬트를 만들 수 있다.The present invention does not allow water droplets on the surface to pass through the holes due to the surface tension in holes 0.1-0.3 mm in diameter, and water vapor can make breathable PVC leather or PVC film bonding sheets through the holes of this size. .
여기에서 가공된 통기성 PVC 레자의 두께는 0.5-2 미리미터이며, 통기성 PVC 필름 접합 쉬트는 PVC 필름 0.2-0.5 미리미터와 수지 폼 1-3미리미터 또는 부직포 0.2-0.5 미리미터의 접합으로 이루어 진다.The thickness of the breathable PVC leather processed here is 0.5-2mm, and the breathable PVC film bonding sheet is made of the bonding of 0.2-0.5mm PVC film and 1-3mm of resin foam or 0.2-0.5mm non-woven. .
다수의 미세한 바늘을 일정한 간격으로 표면에 장착한 롤러로 홀 가공을 할 경우, 롤러를 통과한 후 다시 홀의 직경이 감소할 수 있으나, 미리 바늘의 직경이 큰 것을 사용하여 가공후의 홀 직경을 조절할 수 있다.In the case of hole processing with a roller mounted on the surface of a plurality of fine needles at regular intervals, the diameter of the hole may decrease again after passing through the roller, but the diameter of the hole after the processing may be adjusted by using a larger diameter of the needle in advance. have.
마이크로 드릴로 가공을 하는 경우, 가공 시간이 상대적으로 많이 소요되나 홀의 규격이 정확하며 가공 면이 깨끗하다.When machining with a micro-drill, the processing time is relatively high, but the hole size is accurate and the processing surface is clean.
CO2나 Nd;YAG 레이저 빔으로 홀 가공을 하는 경우, 마이크로프로세서에 의한 출력 및 빔 스폿 사이즈 변경 프로그램에 의해서 홀 가공의 직경을 0.01 미리미터 이상으로 쉽게 변경할수 있어서 효과적이다.In the case of hole drilling with a CO2 or Nd; YAG laser beam, the diameter of the hole machining can be easily changed to 0.01 mm or more by the output by the microprocessor and the beam spot size changing program.
도 1은 본 발명의 양호한 실시예의 측면도1 is a side view of a preferred embodiment of the present invention
도 2은 본 발명의 양호한 실시예의 측면도2 is a side view of a preferred embodiment of the present invention
도 3은 본 발명의 양호한 실시예의 측면도3 is a side view of a preferred embodiment of the present invention
도 4은 본 발명의 양호한 실시예의 측면도4 is a side view of a preferred embodiment of the present invention.
도 5은 본 발명의 양호한 실시예의 측면도5 is a side view of a preferred embodiment of the present invention.
도 6은 본 발명의 양호한 실시예의 측면도6 is a side view of a preferred embodiment of the present invention.
도 7은 본 발명의 양호한 실시예의 단면도7 is a cross-sectional view of a preferred embodiment of the present invention.
〈도면의 주요 부분에 대한 부호의 설명〉<Explanation of symbols for main parts of drawing>
R1, R2, R3, R11, R22, R33 : 감아주는 롤R1, R2, R3, R11, R22, R33: Roll Roll
S1, S2, S3, S11, S22, S33 : 풀어주는 롤S1, S2, S3, S11, S22, S33: Release Roll
P1, P11 : 미세한 바늘을 사방 일정한 간격으로 표면에 장착한 롤러P1, P11: Rollers with fine needles mounted on the surface at regular intervals
DA2, DA22 : 드릴 척 어셈블리DA2, DA22: Drill Chuck Assembly
LA3, LA33 : 레이저 빔 셈블리LA3, LA33: Laser Beam Assembly
L, L1, L2, L3 : PVC레자 F, F11, F22, F33 : PVC 필름L, L1, L2, L3: PVC leather F, F11, F22, F33: PVC film
PF, PF11, PF22, PF33 : 수지 폼(foam) 또는 부직포PF, PF11, PF22, PF33: resin foam or nonwoven
이하에서 본 발명을 바람직한 실시예의 첨부된 도면에 의해서 보다 상세히 설명하면 다음과 같다.Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings of preferred embodiments.
도1, 도2, 도3에서와 같이 PVC 레자(L1, L2, L3)를 풀어주는 롤(S1, S2, S3)이 한쪽에 위치하여 있고 다른 한쪽에는 PVC 레자를 감아주는 롤(R1, R2, R3)이 위치한다.As shown in Fig. 1, Fig. 2 and Fig. 3, the rolls S1, S2 and S3 for releasing the PVC leathers L1, L2 and L3 are positioned on one side and the rolls R1 and R2 winding the PVC leather on the other side. , R3) is located.
이 PVC 레자(L, L1, L2, L3)를 풀어주는 롤(S1, S2, S3)과 감아주는 롤(R1, R2, R3) 사이에 위치한 다수의 미세한 바늘(10)을 일정한 간격으로 표면에 가진 롤러(P1) 또는 다수의 직경 0.3-0.5 미리미터의 드릴(20)을 장착한 드릴 척 어셈블리(DA2) 또는 레이저 빔 어셈블리(LA3)를 통과 하면서 일정한 간격으로 홀(H)을 가공하게 된다.A plurality of fine needles (10) located between the rolls (S1, S2, S3) for releasing the PVC leather (L, L1, L2, L3) and the rolls (R1, R2, R3) on the surface at regular intervals. The holes H are machined at regular intervals while passing through the excitation roller P1 or the drill chuck assembly DA2 or laser beam assembly LA3 equipped with a plurality of drills 20 and 0.3-0.5 mm in diameter.
또한 본 발명의 다른 실시예로서, 도4, 도5, 도6에서와 같이 한쪽에는 PVC필름(F11, F22, F33)을 풀어주는 롤(S11, S22, S33)이 위치하여 있고 다른 쪽에는 수지 폼(foam) 또는 부직포(PF11, PF22, PF33)를 불어주는 롤(S'11, S'22, S'33)이 위치하여 있으며, PVC 필름과 수지 폼 또는 부직포가 만나게 되는 부분의 PVC 필름의 상단에 히터를 장치한 라미네이팅 롤러(LR11, LR22, LR33)를 설치해서 이 라미네이팅 롤러를 통과하는 수지 폼 또는 부직포(PF11, PF22, PF33)와 PVC 필름(F11, F22, F33)은 열접합이 된다.In addition, as another embodiment of the present invention, as shown in Figures 4, 5 and 6, the rolls (S11, S22, S33) for releasing the PVC film (F11, F22, F33) is located on one side and the resin on the other side There is a roll (S'11, S'22, S'33) for blowing a foam or non-woven fabric (PF11, PF22, PF33), the PVC film of the portion where the PVC film and the resin foam or nonwoven fabric meet Laminating rollers (LR11, LR22, LR33) with heaters installed on the top, and the resin foam or nonwoven fabric (PF11, PF22, PF33) and PVC films (F11, F22, F33) passing through the laminating rollers are thermally bonded. .
다시 이 PVC 필름 접합 쉬트(FPF11, FPF22, FPF33)를 감아주는 롤(R11, R22, R33)과 라미네이팅 롤러(LR11, LR22, LR33) 사이에 다수의 미세한 바늘(110)을 일정한 간격으로 표면에 가진 롤러(P11) 또는 다수의 직경 0.3-0.5 미리미터의 드릴(220)을 장착한 드릴 척 어셈블리(DA22) 또는 레이저 빔(330) 어셈블리(LA33)를 통과 하면서 일정한 간격으로 홀(H')을 가공하게 되며, 홀 가공이 완료된 통기성 PVC 필름 접합 쉬트( FPF11, FPF22, FPF33)는 마지막 단계에서 완제품의 상태로서 롤(R11, R22, R33)에 감기게 된다.Again, a plurality of fine needles (110) on the surface at regular intervals between the rolls (R11, R22, R33) winding the PVC film bonding sheets (FPF11, FPF22, FPF33) and laminating rollers (LR11, LR22, LR33). Holes H 'are machined at regular intervals while passing through roller P11 or drill chuck assembly DA22 or laser beam 330 assembly LA33 equipped with multiple drill diameters of 0.3-0.5 mm in diameter. The breathable PVC film bonding sheets FPF11, FPF22, and FPF33, which have completed the hole processing, are wound on the rolls R11, R22, and R33 as a finished product in the last step.
본 발명품은 가공된 직경 0.1-0.3 미리미터의 홀(H, H')에서는 표면의 물방울이 표면장력에 의해서 홀을 통과하지 못하며, 수증기는 이 사이즈의 홀(H, H')을 통과하여 숨쉬는 통기성 PVC 레자(L) 또는 PVC필름 접합 쉬트(FPF11, FPF22,FPF33)를 만들 수 있다.In the present invention, in the processed holes H and H 'having a diameter of 0.1-0.3 mm, water droplets of the surface do not pass through the holes due to the surface tension, and water vapor passes through the holes H and H' of this size. Breathable PVC leather (L) or PVC film bonding sheets (FPF11, FPF22, FPF33) can be made.
여기에서 가공된 통기성 PVC 레자(L)의 두께는 0.5-2.0 미리미터이며, 통기성 PVC 필름 접합 쉬트(FPF11, FPF22, FPF33)는 PVC 필름 약 0.2-0.5 미리미터(F, F11, F22, F33)와 수지 폼(PF, PF11, PF22, PF33) 1-3미리미터 또는 부직포(PF, PF11, PF22, PF33) 0.2-0.5 미리미터의 접합으로 이루어 진다.The thickness of the breathable PVC leather (L) processed here is 0.5-2.0 mm, and the breathable PVC film bonding sheets (FPF11, FPF22, FPF33) are about 0.2-0.5 mm PVC film (F, F11, F22, F33). And resin foams (PF, PF11, PF22, PF33) of 1-3 mm or nonwoven fabrics (PF, PF11, PF22, PF33) of 0.2-0.5 mm.
또한 레자나 PVC 필름, 수지 폼의 제조시 원적외선을 방사하는 세라믹 파우더를 첨가하여 항균 기능성을 높일 수 있다.In addition, it is possible to increase the antimicrobial functionality by adding a ceramic powder that emits far infrared rays in the manufacture of resin or PVC film, resin foam.
이상의 효과로 하여 통기성 PVC 레자 및 통기성 PVC 필름 접합 쉬트는 전체의 비용절감 및 성능향상을 이룰수 있는 것이다.With the above effect, breathable PVC leather and breathable PVC film bonding sheet can achieve overall cost reduction and performance improvement.
이상과 같이 구성되고 적용되는 본 발명에서 PVC 레자 또는 PVC필름 접합 쉬트를 응용하여 제조한 통기성 PVC 레자 또는 PVC필름 접합 쉬트를 미세한 바늘을 일정한 간격으로 롤러 표면에 장착한 롤 투 롤(Roll-to-Roll)공법을 사용하여 대량생산을 가능하게 한다.In the present invention configured and applied as described above, a roll-to-roll (PVC) or a breathable PVC leather or PVC film bonding sheet manufactured by applying a PVC sheet or PVC film bonding sheet mounted on the surface of the rollers at regular intervals with fine needles (Roll-to- It is possible to mass production using the Roll) method.
또한 다수의 미세한 바늘을 일정한 간격으로 표면에 가진 롤러 대신에 CO2 또는 Nd:YAG 레이저 빔이나 다수의 마이크로 드릴을 사용하여 홀의 모양이나 가공면의 기능을 향상 시킬수 있다.In addition, CO2 or Nd: YAG laser beams or multiple micro drills can be used to improve the shape of the hole or the function of the machining surface instead of rollers having a number of fine needles on the surface at regular intervals.
레이저 빔을 사용할 경우에는 빔의 직경을 0.01 미리미터 이상으로 조절하여 미세한 홀가공이 가능하며, 가공면이 매우 청결하며 가공 부산물이 발생하지 않는 장점이 있다.When the laser beam is used, fine hole processing is possible by adjusting the diameter of the beam to 0.01 mm or more, and the processing surface is very clean and processing by-products do not occur.
시험 제작의 결과로는 홀의 사이즈를 홀의 사이즈를 직경 0.3 미리미터 이하에서 방수성 및 통기성이 우수하며, 0.3 미리미터 이상에서는 홀 사이즈가 커질수록 통기성이 좋아지나 방수성은 저하되는 것으로 나타났으며 제곱 센티미터당 10-100개의 홀을 가공할수 있다.As a result of the test production, the hole size is excellent in water resistance and breathability at the hole size of 0.3 mm or less in diameter, and in 0.3 mm or more, the air permeability is improved as the hole size is increased, but the waterproof property is deteriorated. 10-100 holes can be machined.
PVC 레자 또는 PVC필름 접합 쉬트에 통기성의 다수의 미세한 홀을 형성함에 따라, 장판재에 응용할 경우 기존의 장판재보다 수명을 수배 가량 연장시킬수 있으며, 의류 부자재, 신발 자재나 건축자재 및 가구재료로 사용할 경우 탁월한 기능을 발휘한다.By forming a lot of breathable fine holes in PVC leather or PVC film bonding sheet, it can be extended several times longer than existing sheet materials when applied to sheet materials, and it can be used as clothing subsidiary materials, footwear materials, building materials and furniture materials. If it is an excellent feature.
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KR20030046284A (en) * | 2001-12-05 | 2003-06-12 | 강남화성 (주) | Multiple waterproofing system by using be air ventilation method |
KR100843559B1 (en) * | 2006-08-10 | 2008-07-03 | 주식회사 진흥공업 | Artificial intelligence type moisture-permeable and waterproof film, and process for preparing the same |
KR101007180B1 (en) * | 2009-11-16 | 2011-01-18 | 이재춘 | Antibacterial film using inorganic bactericides dispersions and making process of antibacterial film |
WO2013069872A1 (en) * | 2011-11-09 | 2013-05-16 | 광주과학기술원 | Device for manufacturing breathable film by using laser and method for manufacturing same |
KR101701057B1 (en) | 2015-09-14 | 2017-01-31 | 주식회사 배광 | Non-adhesive sheet for glass and a method of manufacturing the same |
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JPH0664063A (en) * | 1992-08-17 | 1994-03-08 | Souzou Kagaku:Kk | Continuous manufacture for network body of synthetic resin |
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JPS5720324A (en) * | 1980-07-10 | 1982-02-02 | Mitsubishi Monsanto Chem Co | Production of plastic film excellent in heat-retaining property |
JPS6320336A (en) * | 1986-07-11 | 1988-01-28 | Dainippon Printing Co Ltd | Production of porous sheet having open cell |
JPH0664063A (en) * | 1992-08-17 | 1994-03-08 | Souzou Kagaku:Kk | Continuous manufacture for network body of synthetic resin |
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Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
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KR20030046284A (en) * | 2001-12-05 | 2003-06-12 | 강남화성 (주) | Multiple waterproofing system by using be air ventilation method |
KR100843559B1 (en) * | 2006-08-10 | 2008-07-03 | 주식회사 진흥공업 | Artificial intelligence type moisture-permeable and waterproof film, and process for preparing the same |
KR101007180B1 (en) * | 2009-11-16 | 2011-01-18 | 이재춘 | Antibacterial film using inorganic bactericides dispersions and making process of antibacterial film |
WO2013069872A1 (en) * | 2011-11-09 | 2013-05-16 | 광주과학기술원 | Device for manufacturing breathable film by using laser and method for manufacturing same |
KR101701057B1 (en) | 2015-09-14 | 2017-01-31 | 주식회사 배광 | Non-adhesive sheet for glass and a method of manufacturing the same |
US11101597B1 (en) | 2020-05-06 | 2021-08-24 | Lear Corporation | Vented electrical connector |
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