KR20210019364A - Methods for the manufacture of soundproof wallpaper recycled industrial waste fibers - Google Patents

Methods for the manufacture of soundproof wallpaper recycled industrial waste fibers Download PDF

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KR20210019364A
KR20210019364A KR1020190098486A KR20190098486A KR20210019364A KR 20210019364 A KR20210019364 A KR 20210019364A KR 1020190098486 A KR1020190098486 A KR 1020190098486A KR 20190098486 A KR20190098486 A KR 20190098486A KR 20210019364 A KR20210019364 A KR 20210019364A
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fibers
recycled
industrial waste
bonding plate
wallpaper
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KR1020190098486A
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Korean (ko)
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이경환
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주식회사 신단수디자인
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    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H5/00—Special paper or cardboard not otherwise provided for
    • D21H5/0082—Wall papers
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H11/00—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
    • D21H11/14—Secondary fibres
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H25/00—After-treatment of paper not provided for in groups D21H17/00 - D21H23/00
    • D21H25/04—Physical treatment, e.g. heating, irradiating
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
    • D21H27/18—Paper- or board-based structures for surface covering
    • D21H27/20—Flexible structures being applied by the user, e.g. wallpaper
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H5/00—Special paper or cardboard not otherwise provided for
    • D21H5/12—Special paper or cardboard not otherwise provided for characterised by the use of special fibrous materials

Abstract

The present invention relates to a method for manufacturing soundproof wallpaper using recycled industrial waste fibers. The objective of the present invention is to provide a method in which recycled fibers are contained in a high content, thereby exhibiting the high recyclability of waste fibers and a small amount of a combustible polymer material is added. The method for manufacturing soundproof wallpaper using recycled industrial waste fibers according to the present invention comprises the steps of: 1) cutting and opening fabrics to be recycled; 2) mixing 75-95 wt% of staples opened in the step 1) with 5-25 wt% of low-melting point polyester fibers, and carding the mixture thereof; 3) forming webs using the fibers carded in the step 2); and 4) thermally bonding the webs formed in the step 3) with a bonding plate placed between presses.

Description

산업폐기섬유를 재활용한 방음 벽지의 제조방법{Methods for the manufacture of soundproof wallpaper recycled industrial waste fibers}[Methods for the manufacture of soundproof wallpaper recycled industrial waste fibers]

본 발명은 방음 벽지, 보다 상세하게는 직물의 산업페기섬유를 재활용한 방음 벽지의 제조방법에 관한 것이다.The present invention relates to a soundproof wallpaper, and more particularly, to a method of manufacturing a soundproof wallpaper by recycling industrial waste fibers of a textile.

폐기되는 섬유 제품의 70% 이상이 매립 또는 소각에 의해 폐기되는데 이는 비용이 많이 들고, 환경오염의 원인이 되기 때문에 현재 국내외에서는 폐섬유의 재활용에 관한 연구가 널리 이루어지고 있다.More than 70% of the discarded textile products are disposed of by landfill or incineration, which is expensive and causes environmental pollution, so studies on the recycling of waste fibers are widely conducted both at home and abroad.

그러나 폐섬유를 재활용하여 생산되는 제품은 품질이 안정적이지 못하여 저가품이나 고도의 성능이 요구되지 않는 분야, 이를테면, 농업용 보온 덮개나 시멘트 양생용 덮개, 또는 침구나 완구 등의 충진재 정도로만 그 사용이 제한되고 있다.However, products produced by recycling waste fibers are not stable in quality, so their use is limited to fields that do not require low-cost products or high performance, such as agricultural thermal insulation covers, cement curing covers, or fillers for bedding or toys. have.

또, 최근 들어 생활수준이 향상되면서 보다 쾌적하고 조용한 환경을 추구하게 되어 소음을 줄이는 기술과 함께 발생된 소음을 흡수하거나 차단하는 방음재에 관한 연구가 널리 수행되고 있다.In addition, in recent years, as the standard of living has improved, a more comfortable and quiet environment has been pursued, and researches on soundproofing materials that absorb or block generated noise along with noise reduction technology have been widely conducted.

폐섬유를 사용하여 방음 벽지 등을 제조하는 기술이 주목을 받게 되었는데 이 분야의 발명으로는 다음과 같은 것이 있다.The technology of manufacturing soundproof wallpaper using waste fibers has attracted attention, but the following are the inventions in this field.

한국공개특허 제1999-0046437호에는 폐섬유에 PVC 수지, 가소제, 안정제, 충진제, 황산바륨, 산화철, 삼산화안티몬, 항균제 등을 배합하고 열간 압착하여 제조되는 방음 벽지가 개시되어 있다.Korean Patent Laid-Open Publication No. 1999-0046437 discloses a soundproof wallpaper prepared by mixing waste fibers with PVC resin, plasticizer, stabilizer, filler, barium sulfate, iron oxide, antimony trioxide, and antibacterial agent, and hot pressing.

한국공개특허 제1991-003990호는 폴리비닐알코올수지(PVA)와 가소제, 안정제, 및 발포제를 배합하여 기재 위에 코팅하고 180~250℃에서 발포시켜 돌기모양의 이단 발포층을 가지는 방음 벽지 및 그의 제조방법이 개시되어 있다.Korean Patent Publication No. 1991-003990 is a soundproof wallpaper having a protruding two-stage foam layer by mixing polyvinyl alcohol resin (PVA), a plasticizer, a stabilizer, and a foaming agent and coating it on a substrate and foaming it at 180 to 250°C The method is disclosed.

상기 방음 벽지들은 재활용 대상인 섬유 필라멘트 함량이 적어 산업폐섬유 활용도가 낮고, 가연성 고분자 물질이 많이 추가되어 주성분을 이룸으로써 화재가 발생하는 경우 화력을 강화시켜 위험을 가중시킨다는 단점과 제조방법이 복잡하다는 단점이 있다.The soundproof wallpaper has a low content of fibrous filaments to be recycled, so the utilization of industrial waste fibers is low, and a large amount of combustible polymeric materials is added to form the main component, thereby enhancing the fire power to increase the risk, and the disadvantage of complex manufacturing methods. There is this.

상기 목적을 달성하기 위한 본 발명의 산업페기섬유를 재활용한 방음 벽지의 제조방법은, 1) 산업폐기섬유 직물을 세절하고, 개섬하는(opening) 단계와, 2) 1) 단계에서 개섬된 스테이플(staple) 75-95wt%와 저융점 폴리에스테르 섬유 25-5wt%를 혼합하고, 소면하는(carding) 단계와, 3) 2) 단계에서 소면된 섬유로 웹(web)을 형성하는 단계와, 4) 3) 단계에서 형성된 웹을 프레스 사이에 위치시킨 본딩 플레이트(bonding plate)로 열융착하는 단계를 포함한다.In order to achieve the above object, the method of manufacturing a soundproof wallpaper using recycled industrial waste fibers of the present invention includes: 1) shredding and opening the industrial waste fiber fabric, and 2) staples opened in the step 1) ( staple) mixing 75-95 wt% and 25-5 wt% of low-melting polyester fibers, and carding (carding), 3) forming a web from the carded fibers in the 2) step, and 4) And heat-sealing the web formed in step 3) with a bonding plate positioned between the presses.

본 발명에 의하면 재활용 섬유의 함량이 높아 산업폐기섬유의 재활용도가 높고, 추가되는 가연성 고분자 물질의 양이 적어 화재의 위험성이 적으며, 산업폐기섬유의 재활용으로 원가 절감이 가능하고, 비교적 공정이 간단한 재활용 섬유를 이용한 방음 벽지의 제조방법이 제공된다.According to the present invention, since the content of recycled fibers is high, the degree of recyclability of industrial waste fibers is high, the risk of fire is small due to the small amount of added combustible polymer materials, and cost reduction is possible by recycling industrial waste fibers, and the process is relatively easy. A method of manufacturing a soundproof wallpaper using simple recycled fibers is provided.

또한 폴리스티렌에 의한 환경오염과 인체유해성을 방지하고 산업폐기물섬유를 재활용함은 물론, 형태안정성이 우수한 방음벽지를 제조할 수 있는 효과가 있다.In addition, there is an effect of preventing environmental pollution and harmfulness to the human body by polystyrene, recycling industrial waste fibers, and manufacturing soundproof wallpapers having excellent shape stability.

도 1은 방음 벽지를 구성하는 섬유에 따른 흡음 특성을 도시한 그래프.
도 2a와 도 2b는 각각 압착부가 정방형인 포인트 본딩 플레이트로 열융착시킨 방음 벽지의 평면도 및 단면도.
도 3a와 도 3b는 각각 압착부가 선형인 라인 본딩 플레이트로 열융착시킨 방음 벽지의 평면도 및 단면도.1 is a graph showing sound-absorbing properties according to fibers constituting the soundproof wallpaper.
2A and 2B are a plan view and a cross-sectional view of a soundproof wallpaper obtained by heat-sealing with a point bonding plate having a square pressing portion, respectively.
3A and 3B are a plan view and a cross-sectional view of a sound insulation wallpaper obtained by heat-sealing a line bonding plate with a linear compression portion, respectively.

상기 목적을 달성하기 위한 본 발명의 산업폐기섬유를 재활용한 방음 벽지의 제조방법을 설명한다.A method of manufacturing a soundproof wallpaper by recycling industrial waste fibers of the present invention for achieving the above object will be described.

1) 산업폐기섬유 즉 재활용 대상 직물을 세절하고, 개섬하는(opening) 단계.1) The step of shredding and opening the industrial waste fiber, that is, the fabric to be recycled.

2) 1) 단계에서 개섬된 스테이플(staple) 75-95wt%와 저융점 폴리에스테르 섬유 25-5wt%를 혼합하고, 소면하는(carding) 단계.2) Mixing 75-95wt% of staples opened in step 1) and 25-5wt% of low-melting polyester fibers, and carding.

3) 2) 단계에서 소면된 섬유로 웹(web)을 형성하는 단계.3) Forming a web with fibers carded in step 2).

4) 3) 단계에서 형성된 웹을 프레스 사이에 위치시킨 본딩 플레이트(bonding plate)로 열융착하는 단계를 포함한다.4) heat-sealing the web formed in step 3) with a bonding plate placed between the presses.

이하, 본 발명의 구성을 단계별로 보다 상세히 설명한다.Hereinafter, the configuration of the present invention will be described in more detail step by step.

제1 단계는, 산업폐기섬유 즉 재활용 대상 직물을 가넷와이어(강철 와이어에 톱니 절단부를 부착한 것) 등으로 세절하고, 일점 향상 가네팅기로 개섬하는(opening) 단계로, 이렇게 하면 직물이 작은 스크랩이 되어, 이후 소면 공정이 가능해 진다.The first step is the step of shredding the industrial waste fiber, that is, the fabric to be recycled, with a garnet wire (a toothed cut part attached to a steel wire), etc., and opening it with a one-point improved garneting machine. Then, the carding process becomes possible.

재활용 대상 직물은 편물을 포함하며, 주로 재단시 발생되는 스크랩이나 낡거나 필요치 않게 되어 폐기하고자 하는 직물이된다.Fabrics to be recycled include knitted fabrics, mainly scraps generated during cutting, or fabrics to be discarded because they are worn out or not needed.

본 발명의 목적이 산업폐기섬유를 재활용한 방음 벽지를 제조하는 것인 만큼 재활용의 대상이 되는 직물이 극세사로 이루어지는 것이라면, 도 1에서 보는 바와 같이, 흡음 성능이 매우 뛰어난 방음 벽지(실시예 2)를 제조할 수 있다.As the object of the present invention is to manufacture soundproof wallpaper made of recycled industrial waste fibers, if the fabric to be recycled is made of microfiber, as shown in Fig. 1, soundproof wallpaper with very excellent sound absorption performance (Example 2) Can be manufactured.

제2 단계는, 1) 단계에서 개섬된 스테이플(staple) 75-95wt%에 저융점 폴리에스테르 섬유 25-5wt%를 혼합하고, 소면하는(carding) 단계로, 본 발명의 특징부 중의 하나를 구성한다.The second step is a step of mixing 25-5wt% of low-melting polyester fiber with 75-95wt% of staples opened in step 1), and carding, constituting one of the features of the present invention. do.

저융점 폴리에스테르는 후술하는 열융착 단계에서 본딩 플레이트에서 전달되는 열에 녹아 접착제 역할을 하는데 융점이The low-melting-point polyester melts in the heat transferred from the bonding plate in the heat fusion step described later and acts as an adhesive.

110-180oC이고 섬유의 길이가 125-510mm인 것을 사용한다.110-180oC and the length of the fiber is 125-510mm.

여기에서, 최소 함유량 5wt%는 재활용 섬유를 접착시킬 수 있는 최소 함유량이고, 최대 함유량은 저융점 폴리에스테르 섬유만으로 방음 벽지를 제조할 수 있으므로 물리적으로 의미가 없으나 본 발명이 산업폐기섬유를 재활용 하고자 하는 것인만큼 최대 함유량 25wt%를 넘지 않도록 하는 것이 바람직하다.Here, the minimum content of 5wt% is the minimum content that can bond the recycled fiber, and the maximum content is physically meaningless because the soundproof wallpaper can be manufactured only with low-melting polyester fibers, but the present invention intends to recycle industrial waste fibers. It is preferable that the maximum content does not exceed 25 wt%.

제3 단계는, 소면된 섬유로 웹(web)을 형성하는 단계로, 잡물이나 짧은 섬유를 제거하고 평행하게 정렬(alignment)한 다The third step is to form a web with carded fibers, removing dirt or short fibers and aligning them in parallel.

음, 적층하여 원하는 두께와 밀도의 웹 형태로 만들어주는 단계이다.Well, this is the step of laminating to form a web with the desired thickness and density.

두께는 10-18mm, 면밀도는 45-270g/m2로 하는 것이 적당하다.It is appropriate that the thickness is 10-18mm and the surface density is 45-270g/m2.

제4 단계는, 본 발명의 특징 있는 구성요소로, 본딩 플레이트(bonding plate)를 프레스 사이에 올려놓고 3) 단계에서 적층된 웹을 용도에 맞는 형상과 두께로 열을 가하여 융착시키는 단계이다.The fourth step, as a characteristic component of the present invention, is a step in which a bonding plate is placed between presses and the web laminated in step 3) is fused by applying heat to a shape and thickness suitable for use.

프레스의 온도와 가압 시간은 저융점 폴리에스테르의 융점, 제조하고자 하는 방음 벽지의 두께 등에 따라 달라지나 130-200℃에서 1-10분 정도 가열 가압하는 것이 적당하다.The temperature and pressing time of the press vary depending on the melting point of the low melting point polyester and the thickness of the soundproof wallpaper to be manufactured, but it is appropriate to heat and press at 130-200℃ for 1-10 minutes.

제조되는 방음 벽지의 표면은 본딩 플레이트(bonding plate)의 형상에 따라 결정된다. 이를테면, 압착부의 한 변 또는 지름이 3-10mm인 정방형 또는 원형이고, 압착부의 가로 및 세로 간격이 5-50mm인 포인트 본딩 플레이트(point bonding plate)를 사용한다. 도 2a와 도 2b는 각각 압착부가 정방형인 포인트 본딩 플레이트로 열융착시킨 방음 벽지의 평면도 및 단면도이다. 여기에서 a는 압착부이고, b는 비압착부이다.The surface of the soundproof wallpaper to be produced is determined according to the shape of the bonding plate. For example, a point bonding plate with a side or a diameter of 3-10mm of the crimping part is a square or circular shape, and the horizontal and vertical spacing of the crimping part is 5-50mm. 2A and 2B are plan and cross-sectional views of soundproof wallpaper obtained by heat-sealing each of the pressing portions with a square point bonding plate. Here, a is a crimped part and b is a non-compressed part.

또, 본딩 플레이트로 압착부가 선형인 라인 본딩 플레이트(line bonding plate)를 사용할 수도 있는데 이 경우 압착부의 폭은 2-5mm, 압착부의 간격은 10-50mm인 로 하는 것이 적당하다. 도 3a와 도 3b는 각각 압착부가 선형인 라인 본딩 플레In addition, a line bonding plate with a linear crimp portion may be used as the bonding plate. In this case, it is appropriate that the width of the crimp portion is 2-5mm and the spacing of the crimp portion is 10-50mm. 3A and 3B are line bonding plates with a linear crimp portion, respectively.

이트로 열융착시킨 방음 벽지의 평면도 및 단면도이다.It is a plan view and a cross-sectional view of a soundproof wallpaper made by heat-sealing with y.

본딩 플레이트에 의해 형성되는 요철은 방음 벽지의 형태 유지성을 좋게 하고, 흡음 특성을 향상시킨다.The unevenness formed by the bonding plate improves the shape retention of the soundproof wallpaper and improves the sound absorption characteristics.

상기 4) 단계에 이어 선택적으로, 열융착에 의해 형성된 재활용 섬유를 이용한 방음 벽지에 폴리우레탄, 항균제, 방염제, 대전방지제에서 선택되는 1 또는 2 이상을 코팅하여 기능성을 부여할 수도 있다.Optionally, after step 4), a function may be imparted by coating one or two or more selected from polyurethane, an antibacterial agent, a flame retardant, and an antistatic agent on the soundproof wallpaper using recycled fibers formed by heat fusion.

<실시예 1><Example 1>

시료로 섬유 직경이 0.2mm의 일반 폴리에스테르로 직조한 재활용 섬유와 융점이 130oC이고 섬유장이 38mm인 저융점 폴리에스테르 섬유를 사용하여 방음 벽지를 제조하였다.As a sample, a soundproof wallpaper was prepared using recycled fibers woven with general polyester having a fiber diameter of 0.2 mm and low melting point polyester fibers having a melting point of 130oC and a fiber length of 38 mm.

A 제조과정A manufacturing process

재활용 직물을 개섬한 섬유 80wt%와 저융점 폴리에스테르 섬유 20wt%를 혼합하고, 웹(web)을 형성하여 면밀도 130g/m2로 적층시킨 후, 프레스 사이에 위치한 포인트 본딩 플레이트(bonding plate)로 5분간 열융착하였다.After mixing 80wt% of recycled fiber opened fiber and 20wt% of low-melting polyester fiber, forming a web and laminating it with an area density of 130g/m2, and then using a point bonding plate located between the presses for 5 minutes. It was heat-sealed.

이 때, 프레스의 상판 온도는 180℃, 하판 온도는 185℃로 하였고, 본딩 플레이트는 한 변이 5mm인 정방형 압착부가 가로 및 세로 간격이 20mm로 배치된 포인트 본딩 플레이트를 사용하였다.At this time, the temperature of the upper plate of the press was set to 180°C and the temperature of the lower plate was set to 185°C, and as for the bonding plate, a point bonding plate in which a square pressing portion having a side of 5 mm was disposed at a horizontal and vertical interval of 20 mm.

B 결과(흡음 특성)B result (sound absorption characteristics)

하기 실시예 2 및 비교예 1-2와 함께 도 1에 흡음 특성을 기재하였다. 결과를 정리하면, 재활용 섬유로 제조한 방음 벽지의 흡음 계수가 모든 주파수에 걸쳐 동일한 종류의 새 섬유로 제조한 방음 벽지의 흡음 계수보다 오히려 더 높다.The sound-absorbing properties are described in FIG. 1 together with Example 2 and Comparative Example 1-2 below. In summary, the sound absorption coefficient of soundproof wallpaper made from recycled fibers is higher than that of soundproof wallpaper made from new fibers of the same type over all frequencies.

<실시예 2, 비교예 1-2><Example 2, Comparative Example 1-2>

시료로, 직경 0.005mm의 극세사로 직조한 재활용 직물(실시예 2), 재활용이 아닌 직경이 0.2mm의 새 폴리에스테르 섬유(비교예 1), 재활용이 아닌 새 극세사 섬유(비교예 2)를 사용한 것을 제외하고는 실시예 1과 동일한 시료와 방법으로 방음 벽지를 제조하였다.As a sample, a recycled fabric woven with a microfiber having a diameter of 0.005 mm (Example 2), a new polyester fiber having a diameter of 0.2 mm that is not recycled (Comparative Example 1), and a new microfiber fiber not recycled (Comparative Example 2) were used. Except for that, a soundproof wallpaper was prepared in the same sample and method as in Example 1.

a : 압착부 b : 비압착부a: crimped part b: non-compressed part

Claims (5)

1) 산업폐기섬유 즉 재활용 대상 직물을 세절하고, 개섬하는(opening) 단계.
2) 1) 단계에서 개섬된 스테이플(staple) 75-95wt%와 저융점 폴리에스테르 섬유 25-5wt%를 혼합하고, 소면하는(carding) 단계.
3) 2) 단계에서 소면된 섬유로 웹(web)을 형성하는 단계.
4) 3) 단계에서 형성된 웹을 프레스 사이에 위치시킨 본딩 플레이트(bonding plate)로 열융착하는 단계를 포함하는 산업폐기섬유를 재활용한 방음 벽지의 제조방법.1) The step of shredding and opening the industrial waste fiber, that is, the fabric to be recycled.
2) Mixing 75-95wt% of staples opened in step 1) and 25-5wt% of low-melting polyester fibers, and carding.
3) Forming a web with fibers carded in step 2).
4) A method of manufacturing a soundproof wallpaper from recycled industrial waste fibers comprising the step of heat-sealing the web formed in step 3) with a bonding plate placed between presses. 제1항에 있어서, 산업폐기섬유의 재활용 대상이 되는 직물이 극세사로 이루어진 것을 특징으로 하는 산업폐기섬유를 재활용한 방음 벽지의 제조방법.The method of claim 1, wherein the fabric to be recycled for industrial waste fibers is made of microfiber. 제1항에 있어서, 저융점 폴리에스테르 섬유가 융점이 110-180oC이고 섬유의 길이가 125-510mm)인 것을 특징으로 하는 산업폐기섬유를 재활용한 방음 벽지의 제조방법.The method of claim 1, wherein the low melting point polyester fiber has a melting point of 110-180oC and a length of 125-510mm). 제1항에 있어서, 본딩 플레이트가 포인트 본딩 플레이트(point bonding plate)로, 압착부가 한 변 또는 지름이 3-10mm인 정방형 또는 원형이고, 가로 간격 및 세로 간격이 5-50mm인 것을 특징으로 하는 산업폐기섬유를 재활용한 방음 벽지의 제조방법.The industry according to claim 1, wherein the bonding plate is a point bonding plate, the pressing portion is square or circular with one side or 3-10 mm in diameter, and 5-50 mm horizontally and vertically. A method of manufacturing soundproof wallpaper from recycled waste fibers. 제1항에 있어서, 본딩 플레이트가 라인 본딩 플레이트(line bonding plate)로, 압착부가 폭이 2-5mm이고, 압착부의 간격이 10-50mm인 것을 특징으로 하는 산업폐기섬유를 재활용한 방음 벽지의 제조방법.The method of claim 1, wherein the bonding plate is a line bonding plate, the width of the crimping portion is 2-5 mm, and the spacing of the crimping portion is 10-50 mm. Way.
KR1020190098486A 2019-08-12 2019-08-12 Methods for the manufacture of soundproof wallpaper recycled industrial waste fibers KR20210019364A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022173238A2 (en) 2021-02-10 2022-08-18 울산과학기술원 Biocompatible quantum dot-polymer composite and diagnostic kit using same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022173238A2 (en) 2021-02-10 2022-08-18 울산과학기술원 Biocompatible quantum dot-polymer composite and diagnostic kit using same

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