KR101086537B1 - Method for laminating PLA film on PLA non-woven fabric and PLA non-woven fabric manufactured by using method thereof - Google Patents

Method for laminating PLA film on PLA non-woven fabric and PLA non-woven fabric manufactured by using method thereof Download PDF

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KR101086537B1
KR101086537B1 KR1020090083007A KR20090083007A KR101086537B1 KR 101086537 B1 KR101086537 B1 KR 101086537B1 KR 1020090083007 A KR1020090083007 A KR 1020090083007A KR 20090083007 A KR20090083007 A KR 20090083007A KR 101086537 B1 KR101086537 B1 KR 101086537B1
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pla
film
nonwoven fabric
woven fabric
pla film
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KR1020090083007A
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KR20110024842A (en
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최혁수
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주식회사 성은바이오
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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
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/06—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating method
    • 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
    • B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
    • 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
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/022—Non-woven fabric
    • 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
    • B32B2437/00—Clothing
    • 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
    • B32B2607/00—Walls, panels
    • B32B2607/02—Wall papers, wall coverings
    • 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
    • B32B27/28—Layered products comprising a layer of synthetic resin comprising synthetic resins not wholly covered by any one of the sub-groups B32B27/30 - B32B27/42
    • B32B27/281—Layered products comprising a layer of synthetic resin comprising synthetic resins not wholly covered by any one of the sub-groups B32B27/30 - B32B27/42 comprising polyimides
    • 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
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
    • 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
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties

Abstract

본 발명은 PLA 필름을 이용한 PLA 부직포 라미네이팅 방법에 관한 것으로, 더욱 상세하게는 PLA 부직포와 PLA 필름이 길이 방향으로 7 내지 15 m/min 속도로 이송되면서 상기 PLA 부직포와 상기 PLA 필름이 폭방향 일직선(열융착선)에서 상기 PLA 필름을 110 내지 140℃ 정도로 순간 가열된 상기 PLA 부직포의 일면에 연속적으로 융착하는 방법과 이 방법에 의해 제조된 PLA 부직포를 제공함으로써, 열적 안정성이 낮은 PLA 부직포와 PLA 수지를 이용하되, 특수한 설비없이 PLA 부직포에 PLA 필름을 융착한 제품을 대량 생산을 구현할 수 있는 특징이 있다.The present invention relates to a PLA nonwoven fabric laminating method using a PLA film, more specifically PLA nonwoven fabric and PLA film is conveyed at a speed of 7 to 15 m / min in the longitudinal direction while the PLA nonwoven fabric and the PLA film in a straight line in the width direction ( Heat-sealing line) by continuously bonding the PLA film to one surface of the PLA nonwoven fabric instantaneously heated to about 110 to 140 ℃ and providing a PLA nonwoven fabric produced by this method, PLA non-woven fabric and PLA resin with low thermal stability By using, without the special equipment is characterized in that the mass production of the product fused PLA film on the PLA non-woven fabric.

PLA 부직포, PLA 필름 PLA nonwoven fabric, PLA film

Description

ＰＬＡ 필름을 이용한 ＰＬＡ 부직포 라미네이팅 방법 및 그 방법에 의해 제조되는 ＰＬＡ 부직포 { Method for laminating PLA film on PLA non-woven fabric and PLA non-woven fabric manufactured by using method thereof }Method for laminating PLA film on PLA non-woven fabric and PLA non-woven fabric manufactured by using method etc.

본 발명은 PLA 필름을 이용한 PLA 부직포 라미네이팅 방법 및 그 방법에 의해 제조되는 PLA 부직포에 관한 것이다.The present invention relates to a PLA nonwoven laminating method using a PLA film and PLA nonwoven fabric produced by the method.

특히, 본 발명은 열적 안정성이 낮은 PLA 필름을 PLA 부직포의 일면에 열융착시키는 방법과 PLA 부직포에 관한 것이다.In particular, the present invention relates to a method for heat-sealing a low thermal stability PLA film on one side of the PLA nonwoven fabric and PLA nonwoven fabric.

합성 플라스틱과는 달리, PLA는 일정한 퇴비화 조건이 만족되는 자연 환경하에서 생분해되는 특징이 있다. 이러한 자연친화적인 PLA는 사출, 압출 또는 성형 기술의 발전으로 인하여 다양한 제품이 출시되어 실생활에 사용되고 있다.Unlike synthetic plastics, PLA is characterized by biodegradation in natural environments where certain composting conditions are met. Due to the development of injection, extrusion, or molding technology, such eco-friendly PLA has been released in various products and used in real life.

그러나, PLA는 고분자의 고형화 속도가 느리고 물성이 취약하여 실생활에 가장 활용성이 높은 재료 중의 하나인 종이에 코팅이 용이하지 못한 단점이 있었다.However, PLA has a disadvantage in that it is not easy to coat on paper, which is one of the most useful materials in real life due to a slow solidification rate of polymer and a weak physical property.

이러한 PLA의 단점을 개선하기 위한 방안으로 제안된 미합중국 등록특허 6,183,814와 대한민국 특허등록 제10-875104호는 각기 PLA 수지의 용융코팅 방법과 조성물을 개시하고 있다. 상기 특허 6,183,814는 1998. 5. 22. 국제출원(국제출원번호 PCT/US1998/10385)되었고 이후, 1999. 11. 23. 대한민국을 지정하여 출원되었다(대한민국 특허출원번호 제1999-7010885호).The United States Patent No. 6,183,814 and the Republic of Korea Patent Registration No. 10-875104 proposed as a way to improve the disadvantages of PLA disclose a melt coating method and composition of the PLA resin, respectively. The patent 6,183,814 was filed on May 22, 1998 (International Application No. PCT / US1998 / 10385), and subsequently filed on November 23, 1999, Republic of Korea (Korean Patent Application No. 1999-7010885).

상기 특허 6,183,814는 PLA의 신장성이 적고 매우 단단하여 열안정성이 낮아 열분해되는 단점이 있어 PLA 부직포에 PLA 코팅이 바람직하게 구현되지 못하는 단점이 있다.The patent 6,183, 814 has a disadvantage that the PLA is not preferably implemented on the PLA non-woven fabric because there is a disadvantage that the thermal elongation is low and the thermal stability is low because the PLA is very hard.

이에 본 발명자는 실생활과 산업계에서 많이 사용되는 부직포에 관심을 갖는 동시에 자연친화적인 제품을 만들고자 노력을 경주하였다.Accordingly, the present inventors have been interested in making non-woven fabrics that are frequently used in real life and industry, and have made efforts to make products that are friendly to nature.

PLA 부직포가 PLA 부직포 보다 열특성이 우수하지만 이마저도 대량 생산 기술이 없는 실정에서 종이보다 열적 안정성이 상대적으로 낮은 PLA 부직포에 PLA 코팅을 대량으로 처리할 수 있는 기술의 개발은 요원한 것이었다.PLA nonwoven fabrics have better thermal properties than PLA nonwoven fabrics, but even in the situation where there is no mass production technology, the development of a technique capable of processing a large amount of PLA coating on a PLA nonwoven fabric, which is relatively less thermally stable than paper, was difficult.

그러나, 본 발명자는 수 년간의 노력을 통해 PLA 부직포의 일면에 PLA 수지를 코팅하는 획기적인 방법을 개발하였다.However, the inventors have developed a breakthrough method of coating PLA resin on one side of the PLA nonwoven fabric through years of effort.

상기와 같은 문제점을 해결하고자 창출된 본 발명의 목적은, 자연친화적인 PLA 부직포의 일면에 PLA 필름을 연속적으로 융착시킨 제품을 대량 생산할 수 있는 PLA 필름을 이용한 PLA 부직포 라미네이팅 방법 및 그 방법에 의해 제조되는 PLA 부직포를 제공함에 있다.An object of the present invention created to solve the above problems, PLA non-woven fabric laminating method using a PLA film that can mass-produce a product that is continuously fused with a PLA film on one side of a natural eco-friendly PLA non-woven fabric and produced by the method In providing PLA nonwovens.

본 발명의 목적은, PLA 부직포와 PLA 필름이 길이 방향으로 7 내지 15 m/min 속도로 이송되면서 상기 PLA 부직포와 상기 PLA 필름이 폭방향 일직선(열융착선)에서 상기 PLA 필름을 110 내지 140℃ 정도로 순간 가열된 상기 PLA 부직포의 일면에 연속적으로 융착하는 PLA 필름을 이용한 PLA 부직포 라미네이팅 방법에 의해 달성될 수 있다.An object of the present invention, the PLA non-woven fabric and PLA film is conveyed at a speed of 7 to 15 m / min in the longitudinal direction while the PLA non-woven fabric and the PLA film 110 to 140 ℃ in the width direction straight line (heat fusion line) It can be achieved by a PLA nonwoven laminating method using a PLA film continuously fused to one surface of the PLA nonwoven fabric instantaneously heated to an extent.

또한, 본 발명은 상기 라미네이팅 방법에 의해 제조되는 PLA 부직포에 의해 달성될 수 있다.In addition, the present invention can be achieved by a PLA nonwoven fabric produced by the laminating method.

이상의 구성을 갖는 본 발명은 열적 안정성이 낮은 PLA 부직포와 PLA 수지를 이용하되, 특수한 설비없이 PLA 부직포에 PLA 필름을 융착한 제품을 대량 생산할 수 있다. 또한, 본 발명은 PLA 부직포 벽지, PLA 부직포 방제복, 일회용 PLA 수술복 등과 같이 친환경적이며 실생활과 산업 전반에 지대한 영향을 미칠 수 있는 새로운 재료를 개발한 특징이 있다.The present invention having the above configuration, but using a low thermal stability PLA non-woven fabric and PLA resin, it is possible to mass-produce a product in which the PLA film is fused to the PLA non-woven fabric without special equipment. In addition, the present invention is characterized by the development of a new material that is environmentally friendly and can have a profound effect on real life and industry, such as PLA non-woven wallpaper, PLA non-woven protective clothing, disposable PLA surgical clothing.

이하, 도면을 참조하여 본 발명의 구성을 상세히 설명하면 다음과 같다.Hereinafter, the configuration of the present invention with reference to the drawings in detail.

도 1은 본 발명에 의한 라미네이팅 방법을 개략적으로 나타내는 평면도이고, 도 2는 도 1의 단면도이다.1 is a plan view schematically showing a laminating method according to the present invention, Figure 2 is a cross-sectional view of FIG.

도 1 및 도 2를 참조하여 본 발명에 의한 라미네이팅 방법을 설명하면 다음과 같다.The laminating method according to the present invention will be described with reference to FIGS. 1 and 2 as follows.

PLAPLA 부직포와  Nonwoven fabric PLAPLA 필름의 준비 Preparation of the film

본 발명의 라미네이팅 방법은 PLA 부직포와 PLA 필름이 롤(두루마기 형태)로 제공되는 경우에 있어서, 작업이 연속적으로 이루어질 수 있어 생산성이 높다. 그러나, 이러한 유형은 단지 본 발명의 일실시예에 불과하면 다음과 같이 변형실시될 수 있다.In the laminating method of the present invention, when the PLA nonwoven fabric and the PLA film are provided in a roll (rolling form), the work can be made continuously and the productivity is high. However, this type is merely an embodiment of the present invention and can be modified as follows.

1) PLA 부직포 - 일정하게 재단된 시트 형태, PLA 필름 - 롤 형태1) PLA nonwoven fabric-sheet form cut regularly, PLA film-roll form

2) PLA 부직포 - 롤 형태, PLA 필름 - 일정하게 재단된 시트 형태2) PLA nonwoven fabric-roll form, PLA film-uniformly cut sheet form

3) PLA 부직포 및 PLA 필름 - 일정하게 재단된 시트 형태3) PLA non-woven fabric and PLA film-sheet form cut regularly

그리고, 본 발명에 적용되는 PLA 부직포와 PLA 필름은 각기 50 내지 200g/㎡ 정도의 평량과 30 내지 80 ㎛ 정도의 두께를 갖는다.In addition, the PLA nonwoven fabric and the PLA film applied to the present invention each have a basis weight of about 50 to 200 g / m 2 and a thickness of about 30 to 80 μm.

PLA 부직포의 일면에 PLA 필름 열융착 Heat PLA film on a surface of a non-woven PLA fusion

PLA 필름(1)은 열융착선(Ti)에서 PLA 부직포(2)의 상부면에 순간적으로 열융착된다. 이러한 열융착은 PLA 필름(1)과 PLA 부직포(2)가 길이 방향(L)으로 이송 되면서 열융착선(Ti)에서 이루어진다. 위의 이송 속도는 7 내지 15 m/min이 바람직하다. 열융착선(Ti)은 PLA 부직포(2)와 PLA 필름(1)의 폭방향(W) 일직선 상에서 PLA 부직포(2)와 PLA 필름(1)이 접촉하는 선을 의미한다.The PLA film 1 is instantaneously heat-sealed to the upper surface of the PLA nonwoven fabric 2 at the heat-sealing line Ti. This thermal fusion is made in the heat fusion line (Ti) while the PLA film (1) and PLA non-woven fabric (2) is transferred in the longitudinal direction (L). The above feed rate is preferably 7 to 15 m / min. The thermal fusion line Ti refers to a line in which the PLA nonwoven fabric 2 and the PLA film 1 contact on a straight line in the width direction W of the PLA nonwoven fabric 2 and the PLA film 1.

여기서, PLA 부직포(2)는 열융착선(Ti)에서 순간적으로 110 내지 140℃, 최적 온도 120℃까지 가열된다. 이때, 열융착선(Ti)에서 순간 가열된 PLA 부직포(2)의 열은 동일 선상에서 압착된 PLA 필름(1)에 전달되고, 이 결과 PLA 필름(1)은 용융되어 PLA 부직포(1)의 상부면에 융착된다.Here, the PLA nonwoven fabric 2 is heated to 110 to 140 ° C. and an optimum temperature of 120 ° C. instantaneously in the heat-sealing line Ti. At this time, the heat of the PLA nonwoven fabric (2) heated instantaneously in the heat fusion line (Ti) is transferred to the PLA film (1) pressed on the same line, as a result of which the PLA film (1) is melted to the PLA nonwoven fabric (1) It is fused to the upper surface.

이러한 열융착 과정에서 가장 주의할 것은 열융착선(Ti)에서 PLA 부직포(2)와 압착되면서 용융될 때, 어느 방향으로도 변형 또는 변위가 발생되지 않도록 구속되어 있어야 한다. 왜냐하면, PLA 필름(1)은 50℃ 전후에서도 변형이 이루어지기 때문에 바람직한 라미네이팅을 구현하기 위해서는 반드시 PLA 필름(1)의 구속이 요구된다.The most caution in this heat welding process should be constrained so that deformation or displacement does not occur in any direction when it is melted while being pressed with the PLA nonwoven fabric 2 in the heat welding line (Ti). Because the PLA film 1 is deformed even at about 50 ° C., the restraint of the PLA film 1 is required in order to implement the preferred laminating.

본 실시예는 PLA 부직포(2)의 상부면에 PLA 필름(1)이 접착제 없이 열융착되는 경우이지만, 이에 한정되지 않고 식용 접착제를 사용할 수도 있다.This embodiment is a case where the PLA film 1 is heat-sealed without an adhesive on the upper surface of the PLA nonwoven fabric 2, but is not limited to this, an edible adhesive may be used.

이상에서 설명된 본 고안은 전술된 실시예(들)에 한정되어 설명되었지만 이에 한정되지 않고 본 고안이 속하는 기술 분야의 통상의 지식을 가진 자가 용이하게 실시할 수 있을 정도의 변형 실시는 본 고안의 기술적 사상에 속하는 것임은 자명하다.The present invention described above is limited to the above-described embodiment (s), but not limited to this embodiment of the present invention is a modification that can be easily implemented by those skilled in the art to which the present invention belongs. It is obvious that it belongs to the technical idea.

도 1은 본 발명에 의한 라미네이팅 방법을 개략적으로 나타내는 평면도이다.1 is a plan view schematically showing a laminating method according to the present invention.

도 2는 도 1의 단면도이다.2 is a cross-sectional view of Fig.

<< 도면의 주요 부분에 대한 부호의 설명 >><< Explanation of symbols for main part of drawing >>

1 : PLA 필름1: PLA film

2 : PLA 부직포2: PLA nonwoven fabric

3 : PLA 필름이 융착된 PLA 부직포3: PLA nonwoven fabric in which PLA film is fused

Claims (5)

PLA 부직포와 PLA 필름이 길이 방향으로 7 내지 15 m/min 속도로 이송되면서 상기 PLA 부직포와 상기 PLA 필름이 폭방향 일직선(열융착선)에서 상기 PLA 필름을 110 내지 140℃의 온도로 순간 가열된 상기 PLA 부직포의 일면에 연속적으로 융착하되,PLA nonwoven fabric and PLA film is conveyed at a speed of 7 to 15 m / min in the longitudinal direction while the PLA nonwoven fabric and the PLA film is instantaneously heated to a temperature of 110 to 140 ℃ in a widthwise straight line (heat fusion line) Continuously fused to one surface of the PLA nonwoven fabric, 상기 PLA 부직포의 일면과 마주보는 상기 PLA 필름의 일면에 식용 접착제가 도포되는 것을 특징으로 하는 PLA 필름을 이용한 PLA 부직포 라미네이팅 방법.PLA nonwoven fabric laminating method using a PLA film, characterized in that an edible adhesive is applied to one surface of the PLA film facing one surface of the PLA nonwoven fabric. 삭제delete 제 1 항에 있어서,The method of claim 1, 상기 PLA 부직포의 평량은 50 내지 200 g/㎡인 것을 특징으로 하는 PLA 필름을 이용한 PLA 부직포 라미네이팅 방법.PLA non-woven fabric laminating method using a PLA film, characterized in that the basis weight of the PLA nonwoven fabric is 50 to 200 g / ㎡. 제 1 항에 있어서,The method of claim 1, 상기 PLA 필름의 두께는 30 내지 80 ㎛인 것을 특징으로 하는 PLA 필름을 이 용한 PLA 부직포 라미네이팅 방법.PLA non-woven fabric laminating method using a PLA film, characterized in that the thickness of the PLA film is 30 to 80 ㎛. 삭제delete
KR1020090083007A 2009-09-03 2009-09-03 Method for laminating PLA film on PLA non-woven fabric and PLA non-woven fabric manufactured by using method thereof KR101086537B1 (en)

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CN110641102A (en) * 2019-09-06 2020-01-03 江阴市东立新材料科技有限公司 Polylactic acid film composite polylactic acid non-woven fabric and production process and production line thereof

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KR100875104B1 (en) 2007-11-14 2008-12-19 주식회사 한창제지 The composition of pla resin and the packing paper using it
JP2009051210A (en) * 2007-07-31 2009-03-12 Mitsubishi Chemicals Corp Biodegradable resin laminate and its manufacturing process

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JP2009051210A (en) * 2007-07-31 2009-03-12 Mitsubishi Chemicals Corp Biodegradable resin laminate and its manufacturing process
KR100875104B1 (en) 2007-11-14 2008-12-19 주식회사 한창제지 The composition of pla resin and the packing paper using it

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102465971B1 (en) 2021-11-10 2022-11-10 김영균 Manufacturing Method For Poly Lactic Acid Nonwoven Fabric

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