KR930005937B1 - Dry chamber for coated fabric - Google Patents

Dry chamber for coated fabric Download PDF

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Publication number
KR930005937B1
KR930005937B1 KR1019910012597A KR910012597A KR930005937B1 KR 930005937 B1 KR930005937 B1 KR 930005937B1 KR 1019910012597 A KR1019910012597 A KR 1019910012597A KR 910012597 A KR910012597 A KR 910012597A KR 930005937 B1 KR930005937 B1 KR 930005937B1
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South Korea
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chamber
heat
dry
coated
knife
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KR1019910012597A
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Korean (ko)
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KR930002600A (en
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안태환
김상현
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주식회사 코오롱
하기주
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    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
    • D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M15/564—Polyureas, polyurethanes or other polymers having ureide or urethane links; Precondensation products forming them

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Coating Apparatus (AREA)
  • Laminated Bodies (AREA)

Abstract

In the device for processing of dry air-permeability waterproof materials, the device mounts a dry chamber (6) and thermal hardening chamber (9) in sequence, forms a coating film by knife (4) gap control for emulsion resin solution on the steel roller (3), controls the film thickness by the floating knife (5). The coated raw materials are removed by the guide rollers (7,8,10,11) between laminated heat supply nozzles (14,15) in the chamber. The guide rollers (8,10) contacted with resin film are coated with the teflon.

Description

통기성 방수소재의 가공장치Breathable waterproof material processing equipment

제1도는 종래기술의 통기성 방수소재의 가공장치.1 is a processing apparatus of a breathable waterproof material of the prior art.

제2도는 본 발명 통기성 방수소재의 가공장치.2 is a processing apparatus of the present invention breathable waterproof material.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

1 : 원단 2 : 장력조절장치1: Fabric 2: Tension control device

3 : 스틸롤 4 : 나이프3: steel roll 4: knife

5 : 후로팅나이프(Floating Knife) 6 : 견열챔버5: Floating Knife 6: Heat Chamber

7,8,10,11 : 가이드롤 9 : 열경화챔버7,8,10,11: guide roll 9: thermosetting chamber

12 : 냉각실린더 13 : 권취롤12: cooling cylinder 13: winding roll

14,15 : 열공급노즐14,15: heat supply nozzle

본 발명은 통기성 방수소재의 제조장치에 관한 것으로, 보다 상세하게는 건식방법으로 미세기공이 발현되는 통기성 방수소재를 가공하는데 있어서, 건열챔버와 열경화챔버를 연속적으로 열처리하게 설치하므로 고정이 단축되고 또한 건열챔버내에 열공급 노즐을 적층시키고 그 사이로 코팅된 원단을 통과시켜 열처리하므로 건열챔버 단위면적당 열공급노즐의 길이가 늘어가는 효과를 가져와 챔버의 설치면적이 좁은 공간에서도 작업속도를 높힐 수가 있어 생산성이 향상되는 통기성 방수소재의 가공장치를 제공하려는 것이다.The present invention relates to an apparatus for manufacturing a breathable waterproof material, and more particularly, in the processing of a breathable waterproof material in which micropores are expressed by a dry method, since the dry heat chamber and the thermosetting chamber are continuously heat-treated, fixing is shortened. In addition, since the heat supply nozzle is laminated in the dry heat chamber and heat-treated by passing the coated fabric therebetween, the length of the heat supply nozzle per unit area of the dry heat chamber is increased to increase the working speed even in a space where the installation area of the chamber is small, thereby improving productivity. It is to provide a processing device of waterproof breathable material.

종래부터 통기성을 갖는 방수성 소재의 가공방법은 여러가지가 있지만 가장 일반적인 생산방법으로는 일본 특허공개공보 소56-26076호, 동 소57-205586호에서와 같이 폴리우레탄 수지액을 원단에 도포한 후 물속에 침지시켜 폴리우레탄 수지액에 함유된 디메틸포름아마이드(이하 DMF라함)를 흡착, 응고시켜 미세다공질 피막을 형성시키는 방법이었다.Conventionally, there are many methods for processing breathable waterproof material, but the most common production method is to apply polyurethane resin liquid to fabric and apply it in water as in Japanese Patent Application Laid-Open No. 56-26076 and 57-205586. It was a method of adsorbing and solidifying dimethylformamide (hereinafter referred to as DMF) contained in the polyurethane resin liquid by immersion in water to form a microporous coating.

그러나 이 방법은 미세기공의 크기를 제어하기 어렵고, 또한 수중에서 습식응고시 DMF의 흡착조건에 따라 미세공의 모양이 변하여 통기성의 편차가 심할 뿐만 아니라 폐수중 DMF의 회수가 어려워 공해문제가 발생되는 등 문제가 있었다.However, this method is difficult to control the size of the micropores, and in the wet coagulation, the shape of the micropores changes depending on the adsorption conditions of the DMF. There was a problem.

상기와 같은 문제점을 해결하기 위하여 동 소59-53786호나 동소 59-76973호 등에서는 건식방법에 의해 통기성이 있는 무공성(無孔性) 수지필름을 라미네이팅하여 원단에 접착시키지만 이 방법은 무공성 피막을 사용하므로 통기성이 저하되는 결점이 있다.In order to solve the problems described above, the iso 59-53786 and the iso 59-76973, etc. by laminating the air-porous non-porous resin film by a dry method to adhere to the fabric, this method is a non-porous coating There is a drawback that the air permeability is lowered by using.

따라서 최근에는 동 소63-75183호에서는 폴리우레탄 수지를 용제로 희석하고 물을 섞은 유중수분 분산형(w/o Emulsion)으로 제조하여 60℃ 이하의 낮은 온도에서 비점이 낮은 메틸에틸케톤, 톨루엔 등의 희석용제를 1차 증발시키고 다음에 100℃ 정도에서 2차로 물을 증발시키므로써 미세기공을 형성시키는 순차 건조방식을 사용하고 있다.Therefore, in recent years, ISO 63-75183 has prepared a water-in-oil dispersion (w / o Emulsion) in which a polyurethane resin is diluted with a solvent and mixed with water, and low boiling point methyl ethyl ketone, toluene, etc. The dilution solvent is first evaporated, and then the water is evaporated secondly at about 100 ° C. to form micropores.

그러나 이러한 수차 건조방식에 있어서도 초기에 높은 열을 받으면 물과 용제의 공비현상으로 거의 동시에 증발되어 버리므로 미세다공의 형성에 어려움이 있기 때문에 건조온도의 조절이 중요한 인자로 되어 있다.However, even in such aberration drying method, when high heat is initially received, the azeotropic phenomenon of water and solvent evaporates at the same time, so that it is difficult to form micropores. Therefore, control of drying temperature is an important factor.

또한 제1도와 같이 종래의 건식 통기성 방수소재 가공장치는 드라이챔버(Dry Chamber)가 20㎜ 이하로 짧아 60℃ 이하의 낮은 온도로 충분히 건열처리하는데 약 4분정도가 요하여 분당 5㎜의 속도로 작업을 진행해야 하므로 생산성면에서 효율이 저하될 뿐만 아니라 150℃ 정도에서 2차 열경화처리를 하기 위해 다시 챔버의 온도를 올린 후 열처리하거나 별도의 챔버에서 열처리해야 하는 등 두번의 공정이 필요하게 된다.In addition, as shown in FIG. 1, the conventional dry breathable waterproof material processing apparatus has a dry chamber of 20 mm or shorter and needs about 4 minutes to dry heat sufficiently at a low temperature of 60 ° C. or lower at a speed of 5 mm per minute. As the work must be progressed, not only the productivity is lowered, but also two steps are required, such as raising the temperature of the chamber again and performing heat treatment or heat treatment in a separate chamber for the second heat curing treatment at about 150 ° C. .

그리고 제1a도는 생산속도를 높이기 위해서는 챔버의 설치공간이 크게되는 문제점이 있다.And in Figure 1a there is a problem that the installation space of the chamber is large to increase the production speed.

따라서 본 발명은 상기와 같은 종래 기술의 문제점을 해결하기 위하여 미세기공이 발현되는 통기성 방수소재를 가공하는데 있어서, 건식방법으로 건열챔버와 열경화챔버를 연속적으로 설치하므로 공정이 단축되는 또한 건열챔버 및 열경화챔버내에 열공급 노즐을 적층시키고 그 사이로 코팅된 원단을 통과시켜 열처리하므로써 챔버단위면적당 열공급 노즐의 길이가 늘어나 챔버의 설치면적이 좁은 공간에서도 작업속도를 높히는것도 가능하여 생산성이 향상되는 통기성 방수소재의 가공장치를 제공하는데 그 목적이 있다.Therefore, the present invention is to process the breathable waterproof material in which micropores are expressed in order to solve the problems of the prior art as described above, the dry heat chamber and the heat curing chamber is also shortened because the dry heat chamber and the thermosetting chamber are continuously installed by a dry method and By stacking heat supply nozzles in a heat curing chamber and passing heat through the coated fabric between them, the length of the heat supply nozzles per chamber area increases, which makes it possible to increase the working speed even in a space with a small installation area. The object is to provide a processing device for the material.

본 발명은 미세기공이 발현되는 통기성 방수소재를 건식방법으로 제공하는데 있어서, 제2도와 같이 원단(1)은 장력조절장치(2)를 거쳐 스틸롤(2) 상에서 폴리우레탄 w/o 에멀죤 수지를 나이프(4)의 간격을 조절하여 적정한 피막두께로 코팅피막을 형성시키거나 후로팅나이프(5)는 2차로 장력에 의한 얇은 피막으로 수지를 도포시 병행하여 사용할 수 있다.The present invention provides a breathable waterproof material in which micropores are expressed in a dry method. As shown in FIG. 2, the fabric 1 is a polyurethane w / o emulsion resin on a steel roll 2 through a tension control device 2. By adjusting the interval of the knife 4 to form a coating film with an appropriate coating thickness or floating knife 5 can be used in parallel when coating the resin with a thin film by the second tension.

이렇게 코팅된 원단은 60℃로 조절된 건열챔버(6) 내에 열공급노즐(14)이 적층된 사이를 가이드롤(7)(8)을 따라 통과되면서 건조된다.The coated fabric is dried while passing along the guide rolls 7 and 8 between the heat supply nozzles 14 stacked in the dry heat chamber 6 controlled at 60 ° C.

이때 L1의 길이에서는 건조되지 않은 부분이 있으므로 코팅된 수지피막이 가이드롤(7)에 접촉되지 않도록 코팅된 원단의 이면을 접촉하도록 하며, 가이드롤(7)을 통과한 원단은 가이드롤(8)까지 2L1만큼의 길이에서 건열처리되어 80% 이상의 희석용제가 증발되어 피막이 안정되나 약간의 미건조된 피막부분이 가이드롤(8)과의 접촉시 부착을 방지하기 위하여 코팅된 피막면과 접촉되는 가이드롤(8) 표면은 테프론으로 피복된 롤을 사용하되 가이드롤(7)과 같은 구동 속도를 유지시켜 준다.At this time, since there is an undried portion at the length of L 1, the coated resin film is in contact with the back surface of the coated fabric so as not to contact the guide roll 7, and the fabric passed through the guide roll 7 is the guide roll 8. Dry heat treatment at a length of 2L 1 to evaporate more than 80% of the dilute solvent to stabilize the film, but some undried film part is in contact with the coated film surface to prevent adhesion upon contact with the guide roll 8 The surface of the guide roll (8) uses a roll coated with Teflon but maintains the same driving speed as the guide roll (7).

이렇게 건열챔버(6)에서 건조된 코팅된 원단(1)은 연속적으로 150∼160℃로 유지되는 열공급노즐(15)이 적층된 열경화챔버(9) 내에 가이드롤(10)(11)에 따라 통과되어 열경화처리된 다음 냉각실린더(12)를 거쳐 냉각된 코팅원단은 권취롤(13)에 권취된다.The coated fabric (1) dried in the dry heat chamber (6) according to the guide roll (10) (11) in the heat curing chamber (9) in which the heat supply nozzle (15) continuously maintained at 150 to 160 ℃ After passing through the heat-curing treatment, and then cooled through the cooling cylinder 12, the coating fabric is wound on the take-up roll (13).

이때 코팅된 피막이 접촉되는 가이드롤(10)은 테프론으로 피복된 롤을 사용하는 것이 좋다.At this time, it is preferable to use a roll coated with Teflon as the guide roll 10 to which the coated film is in contact.

이상과 같은 본 발명은 챔버내에 열공급 노즐을 적층시키고 그 사이로 코팅된 원단을 통과시켜 열처리하므로 챔버 단위면적당 열공급 노즐의 길이가 늘어나 챔버의 설치면적이 좁은 공간에서도 작업속도를 높힐수가 있게 되어 생산성이 향상될 뿐만 아니라 또한 건열챔버와 열경화챔버를 연속되게 설치하므로써 공정이 단축되는 효과가 있다.In the present invention as described above, the heat supply nozzle is laminated in the chamber and heat-treated by passing the coated fabric therebetween, so that the length of the heat supply nozzle per unit area of the chamber is increased, so that the working speed can be increased even in a space where the installation area of the chamber is narrow, thereby improving productivity. In addition, there is also an effect that the process is shortened by continuously installing the dry heat chamber and the thermosetting chamber.

이하 본 발명을 실시예에 의해 설명하면 다음과 같으며 그 결과는 표 2에 나타낸다.Hereinafter, the present invention will be described with reference to Examples. The results are shown in Table 2.

[실시예1]Example 1

제2도에서와 같이 건열챔버의 길이가 20m, 열경화챔버의 길이가 20m이고 열공급노즐이 적층된 본 벌명의 통기성 방수소재 가공장치에서 210T 나이론 태피터직물을 원단으로 사용하고 표 1과 같은 조성인 에멀죤수지 코팅액을 믹싱하고 탈포한 후 나이프의 간격을 140㎛로 코팅한 후 60℃인 건열챔버에서 3분간 건조되고 150℃인 열경화챔버에서 3분간 열경화되도록 20m/min의 속도로 열처리하였다.As shown in FIG. 2, the 210T nylon taffeta fabric is used as the fabric in the breathable waterproof material processing device of the present invention in which the dry heat chamber is 20 m long, the heat curing chamber is 20 m long, and the heat supply nozzle is laminated. After mixing and defoaming the in-emulsion resin coating solution, coating the gap of the knife to 140㎛ and heat-processing at a speed of 20m / min to dry for 3 minutes in a dry heat chamber at 60 ° C and heat curing for 3 minutes in a thermosetting chamber at 150 ° C. It was.

[비교예 1]Comparative Example 1

실시예 1과 동일한 원단과 에멀죤수지 코팅액을 사용하고 제1b도에서와 같이 챔버의 길이가 20m인 통기성 방수소재 가공장치를 사용하여 60℃인 건열챔버에서 6.7m/min의 속도로 3분간 건열처리 후 다시 권취하여 150℃로 챔버의 온도를 올린 후 6.7m/min의 속도로 3분간 열경화 처리하였다.Using the same fabric and emulsion resin coating solution as in Example 1, and using a breathable waterproof material processing apparatus having a chamber length of 20 m as shown in FIG. 1b, the gun was heated for 3 minutes at a speed of 6.7 m / min in a dry heat chamber at 60 ° C. After the heat treatment was again wound up, the temperature of the chamber was raised to 150 ° C and then thermally cured for 3 minutes at a speed of 6.7 m / min.

[비교예 2]Comparative Example 2

실시예 1과 동일한 원단과 에멀죤수지 코팅액을 사용하고 제1a도에서와 같이 각 챔버의 길이가 45m인 통기헝 방수소재 가공장치를 사용하여 건열챔버는 60℃, 열경화챔버는 150℃로 셋팅한 후 15m/min의 속도로 각 3분간씩 열처리하였다.Dry chamber is set to 60 ℃ and thermosetting chamber is set to 150 ℃ using the same fabric and emulsion resin coating liquid as in Example 1, and using a ventilated waterproof material processing device with a length of 45 m as shown in FIG. 1A. After the heat treatment for 3 minutes at a speed of 15m / min.

[표 1]TABLE 1

[표 2]TABLE 2

상기 표 2의 결과로부터 내수압 및 투습도는 실시예 및 비교예 모든 비슷한 수준이나 비교예 1은 20m인 챔버를 한개 사용하여 60℃로 처리한 후 온도를 150℃로 다시 올려 열경화 처리하는 것으로 설치공간은 작으나 공정이 번거롭게 되며 또한 생산속도가 떨어지게 된다.From the results of Table 2, the water pressure and moisture permeability are all similar to the Examples and Comparative Examples, but Comparative Example 1 is treated with 60 ℃ using one chamber of 20m after the temperature is set to 150 ℃ to heat-set the installation space Is small but the process is cumbersome and the production speed is reduced.

비교예 2는 45m인 챔버를 두개 사용하므로 본 발명인 실시예 1에 비해 설치공간이 2배 이상되나 생산속도는 떨어진다.Comparative Example 2 uses two chambers of 45m, so the installation space is more than twice as compared to Example 1 of the present invention, but the production speed is low.

따라서 본 발명의 실시예 1은 열경화챔버와 열경화챔버를 연속되게 설치하되 같은 구동속도를 유지하므로써 공정이 단축될 뿐만 아니라 챔버 단위면적당 열공급 노즐의 길이가 늘어나게 되어 챔버의 설치면적이 좁은 공간에서도 작업속도를 높힐 수가 있어 생산성이 향상되는 효과가 있다.Therefore, in Embodiment 1 of the present invention, the thermosetting chamber and the thermosetting chamber are continuously installed, but the process is not only shortened by maintaining the same driving speed, but also the length of the heat supply nozzle per unit area of the chamber is increased, so that the chamber has a small installation area. It is possible to increase the work speed, thereby improving productivity.

Claims (2)

제2도와 같은 건식통기성 방수소재 가공장치에 있어서, 스틸롤(3) 상의 에멀죤 수지용액을 나이프(4)의 간격을 조절하여 코팅피막을 형성시키거나 2차로 후로팅나이프(5)로 피막두께를 조절하며, 건열챔버(6)와 열경화챔버(9)가 연속적으로 설치되어 있고 또한 상기 각 챔버내에 적층된 열공급노즐(14)(15) 사이를 코팅된 원단이 가이드롤(7),(8)(10)(11)을 따라 통과할 때 같은 속도로 가이드롤이 구동되도록 함으로써 상기 각 챔버의 단위면적당 열처리 유효길이가 3배만큼 증대되는 것을 특징으로 하는 통기성 방수소재의 가공장치.In the dry breathable waterproof material processing apparatus as shown in FIG. 2, the emulsion resin solution on the steel roll 3 is formed by adjusting the gap of the knife 4 to form a coating film or secondly by a floating knife 5 The dry heat chamber (6) and the heat curing chamber (9) are continuously installed, and the coated fabric between the heat supply nozzles (14) and (15) laminated in each chamber is a guide roll (7), ( 8) (10) The processing apparatus of the waterproof waterproof material, characterized in that the effective length of the heat treatment per unit area of each chamber is increased by three times by driving the guide roll at the same speed when passing along. 제1항에 있어서, 가이드롤중 코팅된 수지피막과 직접 접촉되는 가이드롤(8), (10)은 테프론으로 피복된 것임을 특징으로 하는 통기성 방수소재의 가공장치.The apparatus of claim 1, wherein the guide rolls (8) and (10) in direct contact with the coated resin film of the guide rolls are coated with Teflon.
KR1019910012597A 1991-07-23 1991-07-23 Dry chamber for coated fabric KR930005937B1 (en)

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