KR100479730B1 - Foamed PE wallcoverings and process for producting it - Google Patents

Foamed PE wallcoverings and process for producting it Download PDF

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Publication number
KR100479730B1
KR100479730B1 KR10-2001-0049289A KR20010049289A KR100479730B1 KR 100479730 B1 KR100479730 B1 KR 100479730B1 KR 20010049289 A KR20010049289 A KR 20010049289A KR 100479730 B1 KR100479730 B1 KR 100479730B1
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polyethylene
polyethylene foam
wallpaper
sheet
foamed
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KR10-2001-0049289A
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Korean (ko)
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KR20030015522A (en
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이장훈
김홍수
이헌준
이창열
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영보화학 주식회사
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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
    • 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
    • D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
    • D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
    • D21H21/34—Ignifugeants
    • 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
    • D21H27/02—Patterned paper
    • 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
    • D21H27/30—Multi-ply
    • D21H27/40—Multi-ply at least one of the sheets being non-planar, e.g. crêped
    • 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
    • D21H5/0002—Flame-resistant papers; (complex) compositions rendering paper fire-resistant
    • 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
    • D21H5/00—Special paper or cardboard not otherwise provided for
    • D21H5/02—Patterned paper

Landscapes

  • Synthetic Leather, Interior Materials Or Flexible Sheet Materials (AREA)
  • Laminated Bodies (AREA)

Abstract

본 발명은 폴리에틸렌과 폴리올레핀수지(EVA, L-LDPE, HDPE, P.P, mPE)를 베이스 수지로서 발포제 및 난연제와 함께 혼합하여 가교발포하고, 그 가교발포화된 PE 발포시트에 직접 인쇄 및 엠보싱이 가능하도록 한 폴리에틸렌 발포벽지 및 그 제조공정에 관한 것이다. The present invention is crosslinked and foamed by mixing polyethylene and polyolefin resin (EVA, L-LDPE, HDPE, PP, mPE) with a foaming agent and a flame retardant as a base resin, and can be directly printed and embossed on the cross-foamed PE foam sheet The present invention relates to a polyethylene foam wallpaper and a manufacturing process thereof.

본 발명의 폴리에틸렌 발포벽지의 제조공정에서는 가교발포화된 폴리에틸렌폼의 양면에 점착층을 형성하고 이형지와 인쇄지를 붙이는 종래의 과정이 생략되었기 때문에, 공정의 단순화로 인한 경비의 절감과 시간과 인력의 절약 및 그로 인한 생산성의 향상이 기대된다. In the manufacturing process of the polyethylene foam wall paper of the present invention, the conventional process of forming an adhesive layer on both sides of the cross-foamed polyethylene foam and pasting release paper and printing paper is omitted. Savings and thus productivity improvements are expected.

또한, 폴리에틸렌폼 자체에 직접 인쇄와 엠보싱처리를 행함으로써, 무늬 및 전면색조의 인쇄부위와 엠보싱을 조화시킴으로써 뚜렷하고 선명한 입체감을 느끼게 하여 소비자의 심미적 기호를 충족시킬 수 있을 뿐만 아니라, 종래에 접착층을 형성하고 인쇄물을 따로 부착하였던 것과 비교하여 두께가 얇고 가벼워지므로, 천정 등에 부착시 부착이 용이하며, 기재가 발포시트이기 때문에 벽면의 요철부를 흡수할 수 있다. In addition, by directly printing and embossing the polyethylene foam itself, it is possible to satisfy the aesthetic preferences of consumers by forming a clear and sharp three-dimensional feeling by matching the printed area and the embossing of the pattern and the entire color tone, and to form an adhesive layer conventionally. Since the thickness of the printed matter is thinner and lighter than that of attaching the printed matter separately, it is easy to attach to the ceiling and the like, and the uneven portion of the wall can be absorbed because the substrate is a foam sheet.

Description

폴리에틸렌 발포벽지 및 그 제조공정{Foamed PE wallcoverings and process for producting it}Foamed PE wallcoverings and process for producting it

본 발명은 폴리에틸렌과 폴리올레핀수지(EVA, L-LDPE, HDPE, P.P, mPE)를 베이스 수지로서 첨가제, 발포제 및 난연제와 함께 혼합하여 가교발포하고, 그 가교발포화된 PE 발포시트에 직접 인쇄 및 엠보싱이 가능하도록 한 폴리에틸렌 발포벽지 및 그 제조공정에 관한 것이다. The present invention is crosslinked and foamed by mixing polyethylene and polyolefin resins (EVA, L-LDPE, HDPE, PP, mPE) together with additives, blowing agent and flame retardant as a base resin, and directly printed and embossed on the crosslinked foamed PE foam sheet It relates to a polyethylene foam wallpaper and to a process for producing the same.

종래의 합성수지벽지로서는, 연질의 필름상 발포 염화비닐수지를 베이스 수지로 하고, 상기 염화비닐수지 필름의 일면에 적당한 무늬를 인쇄하거나 인쇄된 지류 또는 직물을 부착시키고 다른 일면에는 접착제층을 형성시켜서 이루어진 벽지가 잘 알려져 왔다. As a conventional synthetic resin wallpaper, a soft film-like foamed vinyl chloride resin is used as a base resin, and a suitable pattern is printed on one side of the vinyl chloride resin film, or a printed paper or fabric is attached to the other side, and an adhesive layer is formed on the other side. Wallpaper has been well known.

그러나, 염화비닐수지는 합성수지 중 비중이 비교적 높은 편이기 때문에(대략 1.4∼1.5), 염화비닐수지를 베이스 수지로 하는 벽지는 천정 등에 부착시에 늘어지거나 떨어지기 쉬운 단점이 있었다. However, since vinyl chloride resin has a relatively high specific gravity among synthetic resins (approximately 1.4 to 1.5), wallpaper having a vinyl chloride resin as a base resin has a disadvantage of easily falling or falling when attached to a ceiling or the like.

또한, 염화비닐수지를 벽지의 기재로서 이용하기 위해서는 반드시 가소제를 첨가하여야 하는데, 가소제는 경시변화에 따라 표면이 침출되거나 휘발되는 성질이 있어서 접착력이 저하되고 쉽게 변색되는 단점이 있었다. In addition, in order to use the vinyl chloride resin as a base material of the wallpaper, a plasticizer must be added, but the plasticizer has a disadvantage in that the surface is leached or volatilized with time-dependent change in adhesive strength and discoloration.

또, 염화비닐수지는 화재시 맹독성인 염소가스를 발생시키기 때문에 건물 내장재로서 적합하지 않을 뿐만아니라, 불안정한 합성수지이기 때문에 이를 필름상으로 제조시에는 산화방지제, 안정제, 자외선 흡수제 및 가소제 등의 약품을 첨가해야 하고 고가의 필름제조설비를 이용하여야 하므로 제조공정이 복잡해지고 제조원가가 상승하는 문제점이 있었다. In addition, vinyl chloride resin is not suitable as a building interior material because it generates toxic chlorine gas in case of fire, and because it is an unstable synthetic resin, it is added to chemicals such as antioxidants, stabilizers, ultraviolet absorbers and plasticizers when manufacturing it into a film. There is a problem in that the manufacturing process is complicated and the manufacturing cost increases because it must be used and expensive film manufacturing equipment.

이와 같은 염화비닐수지를 베이스 수지로 한 PVC 벽지의 단점을 극복하기 위해서 최근에는 염화비닐수지보다 비중이 낮아 가볍고(대략 1.0 이하) 가공이 용이하며 비용이 저렴한 폴리에틸렌을 베이스 수지로 이용하기도 한다. 그러나, 베이스 수지로서 폴리에틸렌을 사용하는 경우에는, 폴리에틸렌에 직접 인쇄를 하거나 엠보싱처리를 행하는 것이 불가능하여 폴리에틸렌폼의 양면에 접착제층을 형성한 후 한면에는 이형지, 다른 한면에는 인쇄물을 접착함으로써 벽지를 완성할 수 있기 때문에, 이로 인하여 벽지의 두께가 두꺼워지고, 벽지의 제조공정이 복잡해질 뿐만 아니라, 인력과 시간의 소모로 인한 비용의 상승을 초래하며, 또한 일정한 형상의 입체적 표현이 결여되어 소비자의 심미적 기호를 충족시키기에는 미흡한 점이 많았다. In order to overcome the drawbacks of PVC wallpaper using vinyl chloride resin as a base resin, recently, polyethylene has a specific gravity lower than that of vinyl chloride resin (about 1.0 or less), easy to process, and inexpensive polyethylene. However, when polyethylene is used as the base resin, it is impossible to directly print or emboss the polyethylene, so that an adhesive layer is formed on both sides of the polyethylene foam, and then the release paper is adhered on one side and the printed matter is adhered on the other side to complete the wallpaper. As a result, the thickness of the wallpaper is increased, the wallpaper manufacturing process is not only complicated, the cost is increased due to the waste of manpower and time, and the three-dimensional expression of a certain shape is lacking, which leads to aesthetics of the consumer. There were many insufficiencies to meet the preferences.

본 발명은 상기와 같은 문제점을 해결하기 위한 것으로, 무늬 및 전면색조의 인쇄부위와 엠보싱을 조화시킴으로써 뚜렷한 입체감을 느끼게 할 수 있도록 하기 위한 폴리에틸렌 발포벽지에 관한 것이다. The present invention is to solve the problems described above, and relates to a polyethylene foam wallpaper for making a clear three-dimensional feeling by matching the pattern and the embossed printing parts of the entire color tone.

즉, 폴리에틸렌과 폴리올레핀수지(EVA, L-LDPE, HDPE, P.P, mPE)를 베이스 수지로 이용함으로써, 직접 엠보싱롤러(embossing roller)에 의해 다양한 무늬의 엠보싱이 가능한 물성을 부여함과 동시에, 코로나(Corona) 처리를 행하여 인쇄가능한 표면상태를 만든 후, 가교발포화된 베이스 수지에 직접 인쇄 및 엠보싱 처리를 행하여 선명한 컬러와 엠보싱 무늬를 부여함으로써, 뚜렷한 색조와 입체감을 느낄 수 있게 한다. That is, by using polyethylene and polyolefin resins (EVA, L-LDPE, HDPE, PP, mPE) as the base resin, it gives the physical properties that can be embossed in a variety of patterns by the embossing roller directly, Corona) is used to create a printable surface state, and then directly printed and embossed on the crosslinked foamed base resin to give vivid color and embossed pattern, thereby making it possible to feel a distinct color tone and three-dimensional effect.

또한, 폼의 양면에 접착층을 형성하고 인쇄물을 따로 부착하여야 하는 공정을 생략함으로써 벽지의 두께를 줄이고 공정의 단순화에 의한 생산성 향상과 비용의 절감을 달성하기 위한 것이다. In addition, by omitting the process of forming an adhesive layer on both sides of the foam and attaching the printed matter separately, the thickness of the wallpaper is reduced and productivity is improved and cost is reduced by simplifying the process.

본 발명의 직접 인쇄와 엠보싱이 가능한 PE 발포벽지를 제조하기 위한 공정을 도 1을 참조하여 다음과 같이 설명한다. The process for producing a PE foam wallpaper capable of direct printing and embossing of the present invention will be described with reference to FIG.

우선, 폴리에틸렌과 폴리올레핀수지(EVA, L-LDPE, HDPE, P.P, mPE)를 베이스 수지로 하여 ADCA(Azodicarbonamide) 등의 발포제와 함께 니더(Kneader)에 넣어 혼합한 후, 이를 펠릿(pellet)화하여 압출기를 이용하여 노즐로 압출하여 폴리에틸렌시트를 형성한다. 이 때, 베이스 수지를 첨가제 및 발포제와 함께 혼합할 때 브롬계 또는 안티몬계의 난연제도 첨가하여 난연성을 향상시킨다. First, polyethylene and polyolefin resins (EVA, L-LDPE, HDPE, PP, mPE) are used as base resins and mixed with a blowing agent such as ADCA (Azodicarbonamide) in a kneader, and then pelletized. Extruder with a nozzle using an extruder to form a polyethylene sheet. At this time, when the base resin is mixed with the additive and the blowing agent, a flame retardant of bromine or antimony is added to improve flame retardancy.

그리고 나서, 전자선 가속기에 의해 폴리에틸렌 시트에 전자선을 조사하여 가교하는 조사공정과 발포로에 의해 발포제의 분해온도 이상의 고온에서 가교된 시트를 가열하여 발포시킴으로써 폴리에틸렌폼이 얻어지게 된다. 본 발명에 따른 전자선가교는 점탄성 거동변화에 의한 고배율 발포체를 제조하기 위한 공정으로서, 가교시키고자 하는 시트의 두께에 따라 가속전압을 500~1000kV까지 조절할 수 있으며, 가교정도를 결정하는 가속전자의 에너지, 즉 조사선량을 1~10Mrad으로 조절할 수 있다. 예를 들어, 두께 0.3~0.7mm, 폭 400~450mm의 시트의 경우에는 500kV, 2~4Mrad의 조건으로 전자선 가속기에 통과시키는 것이 바람직하다.또한, 발포로는 여러종류의 발포로(수평발포로, 수직발포로, Salt염)를 사용할 수가 있다. Then, polyethylene foam is obtained by heating and foaming the crosslinked sheet at a high temperature above the decomposition temperature of the foaming agent by the irradiation step of irradiating and crosslinking the polyethylene sheet by electron beam accelerator with the electron beam. Electron beam crosslinking according to the present invention is a process for producing a high magnification foam by the change in viscoelastic behavior, the acceleration voltage can be adjusted up to 500 ~ 1000kV according to the thickness of the sheet to be crosslinked, the energy of the acceleration electron to determine the degree of crosslinking That is, the irradiation dose can be adjusted to 1 ~ 10Mrad. For example, in the case of a sheet having a thickness of 0.3 to 0.7 mm and a width of 400 to 450 mm, it is preferable to pass the electron beam accelerator under conditions of 500 kV and 2 to 4 Mrad. , Salt salt) can be used.

그리고 나서, 이 발포된 폴리에틸렌폼에 코로나(Corona) 처리를 행함으로써 폴리에틸렌폼의 표면을 거칠게 하여 인쇄하기 용이하도록 만든다. 이후, 코로나 처리된 폴리에틸렌폼의 일면에 점착제를 사용하지 않고 벽지원지를 붙이고 난 후 다른 면에 직접 인쇄를 하고 엠보싱 롤러(embossing roller)를 통과시켜 다양한 무늬의 엠보싱을 표현하여 완제품을 생산하게 된다. 폴리에틸렌은 점착성이 나쁘다는 특성을 가지고 있으나, 폴리에틸렌에 폴리올레핀수지(EVA, L-LDPE, HDPE, P.P, mPE)를 혼합한 폴리에틸렌폼에 코로나처리를 함으로써 점착력을 월등히 향상시킬 수 있기 때문에, 폴리에틸렌폼의 일면에 점착층을 형성하지 않고도 열을 가하여 벽지원지를 부착함으로써 인쇄 및 엠보싱처리를 행할 폴리에틸렌 발포시트를 완성할 수 있다. The foamed polyethylene foam is then subjected to corona treatment to make the surface of the polyethylene foam rough and easy to print. Subsequently, after attaching wallpaper paper to one side of the corona treated polyethylene foam without using an adhesive, it is directly printed on the other side and passed through an embossing roller to express the embossing of various patterns to produce a finished product. Polyethylene has a poor adhesiveness, but since the corona treatment of polyethylene foam mixed with polyolefin resin (EVA, L-LDPE, HDPE, PP, mPE) in polyethylene can improve the adhesive strength, It is possible to complete the polyethylene foam sheet to be printed and embossed by applying wallpaper paper by applying heat without forming an adhesive layer on one surface.

상기와 같은 공정을 거쳐서 완성된 폴리에틸렌 발포벽지는 도 2와 같이 간단하게 구성된다. 즉, 본 발명의 폴리에틸렌 발포벽지는 직접 인쇄와 엠보싱이 행해진 폴리에틸렌 발포시트와 그 이면에 점착제없이 부착되어 있는 벽지원지만으로 구성되게 된다. Polyethylene foam wallpaper finished through the above process is simply configured as shown in FIG. That is, the polyethylene foam wallpaper of the present invention is composed of a polyethylene foam sheet subjected to direct printing and embossing and only a wallpaper base material attached to the back side thereof without adhesive.

상기와 같은 공정을 거쳐서 형성된 본 발명의 폴리에틸렌 발포벽지는 다음과 같은 효과를 갖는다. Polyethylene foam wallpaper of the present invention formed through the above process has the following effects.

우선, 폴리에틸렌 발포벽지의 제조공정에 있어서, 가교발포화된 폴리에틸렌폼의 양면에 점착층을 형성하고 이형지와 인쇄지를 붙이는 종래의 과정이 생략되었기 때문에, 공정의 단순화로 인한 경비의 절감과 시간과 인력의 절약 및 그로 인한 생산성의 향상이 기대된다. First of all, in the manufacturing process of polyethylene foam wall paper, the conventional process of forming an adhesive layer on both sides of crosslinked and foamed polyethylene foam and pasting release paper and printing paper is omitted. It is expected to save cost and increase productivity.

또한, 폴리에틸렌폼 자체에 직접 인쇄와 엠보싱처리를 행함으로써, 무늬 및 전면색조의 인쇄부위와 엠보싱을 조화시킴으로써 뚜렷하고 선명한 입체감을 느끼게 하여 소비자의 심미적 기호를 충족시킬 수 있을 뿐만 아니라, 종래에 점착층을 형성하고 인쇄물을 따로 부착하였던 것과 비교하여 두께가 얇고 가벼워지므로, 천정 등에 부착시 부착이 용이하며, 기재가 발포시트이기 때문에 벽면의 요철부를 흡수할 수 있다. In addition, by directly printing and embossing the polyethylene foam itself, it is possible to satisfy the aesthetic preferences of consumers by providing a clear and clear three-dimensional feeling by harmonizing the printing area of the pattern and the color tone of the front surface and the embossing. Since the thickness is thinner and lighter than that of forming and attaching the printed matter separately, it is easy to attach to the ceiling or the like, and the uneven portion of the wall can be absorbed because the substrate is a foam sheet.

게다가, 전자선 가교설비에서 폴리에틸렌 시트가 가교화됨에 따라, 겔함량이 높아져서 미가교 시트에 비하여 시트표면의 평활도가 월등히 향상될 수 있다. 또한, 강도가 증대되고 발포셀이 균일하고 세밀하게 되어 내수성, 보온성, 단열성 및 내구성이 증대되게 된다. In addition, as the polyethylene sheet is crosslinked in the electron beam crosslinking equipment, the gel content is increased, so that the smoothness of the surface of the sheet can be significantly improved compared to the uncrosslinked sheet. In addition, the strength is increased and the foaming cell becomes uniform and fine, thereby increasing the water resistance, heat insulation, heat insulation and durability.

또한, 폴리에틸렌 수지에 난연제를 첨가함으로써 난연성이 우수한 양질의 폴리에틸렌 발포벽지를 얻을 수 있게 된다. In addition, by adding a flame retardant to the polyethylene resin, it is possible to obtain a high quality polyethylene foam wallpaper having excellent flame retardancy.

도 1은 본 발명의 PE 발포벽지의 제조공정을 나타내는 블록도이다. 1 is a block diagram showing a process for producing a PE foam wallpaper of the present invention.

도 2는 본 발명의 PE 발포벽지의 단면도이다. 2 is a cross-sectional view of the PE foam wallpaper of the present invention.

[도면의 주요 부분에 대한 부호의 설명][Description of Symbols for Main Parts of Drawing]

1. PE 발포시트 2. 벽지원지1. PE foam sheet 2. Wallpaper

Claims (3)

폴리에틸렌을 베이스 수지로 하여 발포제와 함께 혼합하는 단계와,Mixing polyethylene with a foaming agent as a base resin, 혼합된 베이스 수지를 펠릿(pellet)화하는 단계와,Pelletizing the mixed base resin, 펠릿화된 베이스 수지를 압출기를 통하여 압출시트를 제조하는 단계와,Preparing an extruded sheet of the pelletized base resin through an extruder; 압출된 시트를 발포로에서 발포시키는 단계와,Foaming the extruded sheet in a foaming furnace, 발포된 폴리에틸렌 시트에 코로나(corona)처리를 행하는 단계와,Performing a corona treatment on the foamed polyethylene sheet, 상기 폴리에틸렌 발포시트의 일면에 열을 가하여 벽지원지를 부착시키는 단계와,Attaching wallpaper paper by applying heat to one surface of the polyethylene foam sheet; 인쇄 및 엠보싱 단계를 포함하여 구성되는 폴리에틸렌 발포벽지의 제조공정에 있어서,In the manufacturing process of polyethylene foam wallpaper comprising a printing and embossing step, 상기 폴리에틸렌 베이스 수지는 폴리올레핀수지(EVA, L-LDPE, HDPE, P.P, mPE)를 더 포함하고, The polyethylene base resin further comprises a polyolefin resin (EVA, L-LDPE, HDPE, P.P, mPE), 상기 혼합단계시 난연제를 더 첨가하며,Further adding a flame retardant during the mixing step, 상기 압출단계 후에, 압출된 시트를 전자선 가교설비에 통과시켜 가교결합하는 단계를 포함하고,After the extruding step, cross-linking the extruded sheet through an electron beam crosslinking facility, 상기 인쇄 및 엠보싱 단계시 상기 폴리에틸렌 발포시트에 직접 인쇄와 엠보싱을 행하는 것을 특징으로 하는 폴리에틸렌 발포벽지의 제조공정. Process of producing a polyethylene foam wallpaper, characterized in that the printing and embossing step directly printing and embossing on the polyethylene foam sheet. 폴리에틸렌 발포벽지에 있어서,Polyethylene foam wallpaper, 폴리에틸렌과 폴리올레핀수지(EVA, L-LDPE, HDPE, P.P, mPE)를 베이스 수지로 하여, 직접 인쇄와 엠보싱 처리가 가능한 폴리에틸렌 발포시트와 벽지원지만으로 구성되고, 난연성을 가지는 것을 특징으로 하는 폴리에틸렌 발포벽지.Polyethylene foam comprising polyethylene and polyolefin resins (EVA, L-LDPE, HDPE, PP, mPE) as the base resin, consisting of polyethylene foam sheet and wallpaper base material that can be directly printed and embossed, and have flame retardancy. wallpaper. 삭제delete
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KR20230085354A (en) 2021-12-07 2023-06-14 한전건 Antimicrobial Wallpaper by nano ion clusters coating
KR20230097585A (en) 2021-12-24 2023-07-03 김천우 Functional wallpaper using fermented natural product

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