KR100227580B1 - Method for manufacturing polyester spunbond nonwoven fabric having improved exfoliation strength - Google Patents

Method for manufacturing polyester spunbond nonwoven fabric having improved exfoliation strength Download PDF

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KR100227580B1
KR100227580B1 KR1019970032875A KR19970032875A KR100227580B1 KR 100227580 B1 KR100227580 B1 KR 100227580B1 KR 1019970032875 A KR1019970032875 A KR 1019970032875A KR 19970032875 A KR19970032875 A KR 19970032875A KR 100227580 B1 KR100227580 B1 KR 100227580B1
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South Korea
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polyester
nonwoven fabric
general
low melting
web
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KR1019970032875A
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Korean (ko)
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KR19990010182A (en
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임대우
백문수
최화선
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한형수
주식회사새한
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    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/02—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of yarns or filaments
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/005—Synthetic yarns or filaments
    • D04H3/009—Condensation or reaction polymers
    • D04H3/011—Polyesters
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/08—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
    • D04H3/14—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic yarns or filaments produced by welding
    • D04H3/153—Mixed yarns or filaments
    • 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
    • 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
    • B32B7/06—Interconnection of layers permitting easy separation

Abstract

본 발명은 두께가 300g/m2이상인 고중량 폴리에스테르 스판본드 부직포를 제조함에 있어서, 우수한 박리강도를 갖도록 하는 것을 특징으로 하는 폴리에스테르 스판본드 부직포의 제조방법에 관한 것으로 하나의 구금면을 3개의 부분으로 분할하여 각각 별개의 이젝터를 통해 웹을 형성시킨 후 이들 웹을 적층시킬 때에 상하층에는 일반 폴리에스테르 장섬유만을 적층하고 내층 부위에는 일반 폴리에스테르 장섬유 80

Figure kpo00001
90부와 저융점 폴리에스테르 장섬유 10
Figure kpo00002
20부를 혼합하여 복합 방사하는 것을 특징으로 하는 박리강도가 우수한 폴리에스테르 스판본드 부직포를 제조한다.The present invention relates to a method for producing a polyester spanbond nonwoven fabric having a thickness of 300 g / m 2 or more, so as to have a good peeling strength. After forming the webs through separate ejectors, and laminating these webs, only the general polyester long fibers are laminated on the upper and lower layers, and the general polyester long fibers 80 on the inner layer.
Figure kpo00001
90 parts and low melting polyester long fiber 10
Figure kpo00002
A polyester spunbond nonwoven fabric having excellent peel strength is prepared by mixing 20 parts by complex spinning.

이와 같이 형성된 부직포 웹은 엠보싱 공정에 있어서 일반 폴리에스테르만을 이용하여 저중량 부직포를 만들때와 같은 정도의 온도와 압력만으로도 우수한 박리강도를 갖는 고중량 부직포를 제조할 수 있다.The nonwoven web thus formed may produce a high weight nonwoven fabric having excellent peel strength even at the same temperature and pressure as when making a low weight nonwoven fabric using only ordinary polyester in the embossing process.

Description

박리강도가 우수한 폴리에스테르 스판본드 부직포의 제조방법Manufacturing method of polyester spanbond nonwoven fabric with excellent peel strength

본 발명은 박리강도가 우수한 폴리에스테르 스판본드 부직포의 제조방법에 관한 것으로 특히 부직포의 두께가 300g/m2이상인 스판본드 부직포를 제조함에 있어서 우수한 박리강도를 갖는 열접착 스판본드 부직포의 제조방법에 관한 것이다.The present invention relates to a method for producing a polyester spanbond nonwoven fabric having excellent peel strength, and more particularly, to a method for producing a thermally bonded spanbond nonwoven fabric having excellent peel strength in manufacturing a spanbond nonwoven fabric having a thickness of 300 g / m 2 or more. will be.

종래에 폴리에스테르 스판본드 부직포의 제조방법으로서 일반 폴리에스테르 수지와 저융점 개질 폴리에스테르 수지를 서로 혼합 방사하여 얻은 웹을 가열하면서 엠보싱로울에 통과시켜 저융점 개질 폴리에스테르 장섬유 부분이 녹아서 일반 폴리에스테르 장섬유에 가교적인 교락을 형성케 함으로써 박리강도가 개선된 스판본드 부직포를 얻는 방법이 알려져 있으나,Conventionally, as a method for producing a polyester spanbond nonwoven fabric, a low melting point modified polyester long fiber portion is melted by passing a web obtained by mixing and spinning a general polyester resin and a low melting point modified polyester resin with each other while heating the web, and then a general polyester. Although a method of obtaining a spanbonded nonwoven fabric having improved peel strength by forming crosslinked entanglements in long fibers is known,

이와 같은 방법은 비교적 중량이 가벼운 부직포 제조시 효과적으로 사용할 수 있고, 중량이 300g/m2이상인 고 중량물의 제조에 있어서는 웹의 내부까지 충분한 열전달이 이루어지지 않아 엠보싱로울과 접촉이 일어나는 바깥부분에 비해 고중량 부직포의 내부층에서의 저융점 폴리에스테르 섬유의 충분한 용융이 일어나기 어렵게 된다.Such a method can be effectively used in the manufacture of non-woven fabrics, which are relatively light in weight, and in the manufacture of high weight products having a weight of 300 g / m 2 or more, sufficient heat transfer is not made to the inside of the web, so that the weight of the non-woven fabric is higher than that of the outer part in contact with the embossing roller. Sufficient melting of the low melting polyester fibers in the inner layer of the nonwoven becomes difficult to occur.

이와 같은 용융 불량으로 양호한 교락이 형성되지 않으며 못해 각 웹의 층이 서로 떨어지는 박리현상이 일어나는데 이러한 박리현상을 개선하기 위해 과도하게 온도를 올리게 되면 엠보싱로울과 바깥부분에 있는 저융점 폴리에스테르 장섬유간의 용융점착이 발생하여 부직포 표면이 고르지 못하게 된다.This poor melting does not form good entanglement and the layers of each web are peeled off each other. If the temperature is excessively raised to improve the peeling phenomenon, the embossing roll and the low melting polyester long fibers in the outer part Melt adhesion occurs and the nonwoven surface is uneven.

이와 같은 문제점을 해결하기 위해서 엠보싱로울 조각의 무늬를 한쪽 로울이 아닌 양면로울 모두에 조작하여 동일한 온도에서 보다 높은 압력이 웹에 가해지도록 하는 방안도 이용되고 있으나 이 방법은 상기한 박리현상을 근본적으로 해결할 수 없을 뿐만 아니라 엠보싱로울 제작과 고압 사용 등의 작업공정의 난이성만 가중하게 된다.In order to solve this problem, a method of manipulating the pattern of the embossed roll pieces on both sides of the roll rather than on one roll is used to apply a higher pressure to the web at the same temperature. Not only can it be solved, but it also increases the difficulty of work processes such as embossing roll manufacturing and high pressure use.

따라서 본 발명의 목적은 고중량물의 폴리에스테르 스판본드 부직포를 제조함에 있어서 저융점 폴리에스테르 장섬유와 일반 폴리에스테르 장섬유간의 가교적인 교락을 긴밀히 하여 각 웹의 층간에 박리현상이 발생하지 않도록 하고 부직포의 표면이 고른 열접착 스판본드 부직포의 제조방법을 제공하기 위한 것이다.Accordingly, an object of the present invention is to close the crosslinking of the low-melting polyester long fibers and the general polyester long fibers in the manufacture of high-weight polyester spanbond nonwoven fabric to prevent the phenomenon of peeling between the layers of each web and non-woven fabric To provide a method for producing a heat-bonded spunbond nonwoven fabric having an even surface.

상기한 본 발명의 목적을 달성하기 위해서는 본 발명자는 여러 차례에 걸쳐 연구한 결과 내, 외부층에 존재하는 일반 폴리에스테르 및 저융점 폴리에스테르 장섬유의 비율을 달리함으로써 저융점 폴리에스테르 장섬유를 충분히 용융시킬 수 있는 온도를 가하여도 고온에 의한 부직포 표면이 고르지 못하게 되는 단점을 제거할 수 있다는 것을 알아 본 발명을 완성하였다.In order to achieve the above object of the present invention, the present inventors have studied a number of times, and by varying the ratio of the general polyester and low-melting polyester long fibers present in the outer layer, the low-melting polyester long fibers are sufficiently The present invention has been found to be able to eliminate the disadvantage that the nonwoven surface becomes uneven due to the high temperature even by applying a melting temperature.

제1도는 본 발명에 따른 스판본드 부직포의 제조공정 개략도.1 is a schematic view of the manufacturing process of the spunbond nonwoven fabric according to the present invention.

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

10 : 구금 11 : 컨베어밸트10: Detention 11: Conveyor Belt

12 : 카렌더로울 13 : 예열기12: calendar roll 13: preheater

14 : 엠보싱로울 15 : 와인더14: embossing roll 15: winder

본 발명에서는 바깥부분과 내부의 저융점 폴리에스테르 장섬유의 분포가 동일한 기존의 방법과는 달리 바깥 부분에는 일반 폴리에스테르 장섬유 100부만 존재하고 내부층에는 일반 폴리에스테르 장섬유 80

Figure kpo00004
90부에 저융점 폴리에스테르 장섬유 10
Figure kpo00005
20부로 혼합되어 존재하는 부직포 웹을 형성하고 카렌더링한 후 엠보싱로울에 통과시켜 박리강도가 우수한 폴리에스테르 열접착 스판본드 부직포를 얻게 된다.In the present invention, unlike the conventional method in which the distribution of the low melting point polyester long fibers in the outer part and the inner part is the same, there are only 100 parts of the general polyester long fiber in the outer part and the general polyester long fiber 80 in the inner layer.
Figure kpo00004
Low melting point polyester long fiber 10
Figure kpo00005
20 parts of the non-woven web is formed, calendered and passed through an embossing roll to obtain a polyester heat-bonded spunbond nonwoven fabric having excellent peel strength.

이하 본 발명 스판본드 부직포의 제조방법을 첨부도면에 의거 보다 상세히 설명하면 제1도는 본 발명에 따른 부직포 제조공정의 흐름을 개략적으로 나타낸 것으로, 본 발명의 다층구조 폴리에스테르 장섬유 부직포 웹을 형성시키기 위해서는 제1도에 도시된 바와 같은 구금의 변형이 필요한데 그 구성은 구금면을 3개의 부분으로 분할시켜 각각을 별도의 이젝터를 통해 웹을 형성시키고, 웹이 적층될 때 내층 부위에만 저융점 폴리에스테르가 복합방사되도록 한다.Hereinafter, a method of manufacturing the spunbonded nonwoven fabric of the present invention will be described in detail with reference to the accompanying drawings. FIG. 1 schematically shows the flow of a nonwoven fabric manufacturing process according to the present invention, to form a multi-layered polyester filament nonwoven web of the present invention. This requires deformation of the detention as shown in Figure 1, which consists of dividing the surface into three parts, each forming a web through a separate ejector, and the low melting polyester at the inner layer only when the web is laminated. Allow multiple spinning

구금의 형태는 1개의 구금에서 방사되는 폴리에스테르 장섬유의 필라멘트수를 300개로 가정했을 때 각 분사관별로 100개씩의 필라멘트가 분사된다. 이렇게 되면 도면에 도시된 구금 좌측편의 100개의 필라멘트와 우측편의 100개의 필라멘트는 폴리에스테르 부직포의 맨 아래층과 맨 위층을 형성하게 되며, 중앙의 100개의 필라멘트는 부직포의 내층을 형성하게 된다. 이때 복합방사를 함에 있어 중앙의 100개의 구금홀중 10

Figure kpo00006
20개의 구금홀에서만 저융점 폴리에스테르 장섬유가 방사되어 나오도록 하는데 일반 폴리에스테르 장섬유가 방사되는 구금홀 사이에 최대한 간격을 넓게 갖고 분포되도록 해야 한다. 이렇게 형성된 웹은 상하층은 일반 폴리에스테르 장섬유로만 형성되어 있고, 내부층은 일반 폴리에스테르 장섬유 80
Figure kpo00007
90부에 저융점 폴리에스테르 장섬유가 10
Figure kpo00008
20부가 혼합된 웹이 형성되어 전체로는 3겹의 층을 갖는 부직포 웹이 형성된다.In the form of detention, assuming that the number of filaments of polyester filament emitted from one detention is 300, 100 filaments are injected for each injection pipe. In this case, the 100 filaments on the left side and the 100 filaments on the right side shown in the drawing form the bottom layer and the top layer of the polyester nonwoven fabric, and the center 100 filaments form the inner layer of the nonwoven fabric. At this time, 10 of the 100 detention halls in the center
Figure kpo00006
The low melting point polyester filament is emitted only in twenty detention holes, and the general polyester filament should be distributed with as much space as possible between the discharge holes. The web thus formed is formed of ordinary polyester long fibers only in the upper and lower layers, and an inner layer of ordinary polyester long fibers 80
Figure kpo00007
90 parts of low melting polyester long fiber 10
Figure kpo00008
A 20-part mixed web is formed to form a nonwoven web having three layers in total.

이렇게 형성된 부직포 웹은 엠보싱 공정에 있어서 일반 폴리에스테르만을 이용하여 저중량 부직포(80g/m2이하 수준)를 만들 때와 같은 정도의 온도와 압력만으로도 우수한 박리강도를 갖는 300g/m2수준의 고중량 부직포를 제조할 수 있다.The nonwoven web thus formed has a high weight nonwoven fabric of 300g / m 2 level with excellent peel strength at the same temperature and pressure as when making a low weight nonwoven fabric (level of 80 g / m 2 or less) using only ordinary polyester in the embossing process. It can manufacture.

또한 엠보싱로울과 접촉하는 바깥부위는 일반 폴리에스테르 장섬유로만 형성되어 있으므로 온도를 높여도 로울에 점착되는 현상이 일어나지 않고 종래의 저융점 폴리에스테르 장섬유가 안팎으로 동일 밀도로 분산되어 있을 때보다 엠보싱로울의 온도를 보다 높게 올릴 수 있으며 부직포 웹의 두께가 두꺼워 내부로의 열전달이 어렵더라도 내부층의 웹에는 저융점 폴리에스테르 장섬유가 분포되어 있어 용융 융착이 용이하게 일어나고, 내부층 역시 견고한 결합으로 박리현상 발생이 없는 300g/m2이상의 고중량의 폴리에스테르 장섬유 부직포를 제조할 수 있는 유용한 발명이다.In addition, since the outer part contacting with the embossing roll is formed of ordinary polyester long fiber only, it does not stick to the roll even when the temperature is increased, and it is embossed than when the conventional low melting point polyester long fiber is dispersed at the same density inside and outside. The temperature of the roll can be raised higher and the thickness of the nonwoven web is difficult to transfer heat to the inside, but low melting polyester long fibers are distributed in the web of the inner layer to facilitate fusion and fusion. It is a useful invention that can produce a high-weight polyester long fiber nonwoven fabric of 300g / m 2 or more without the occurrence of peeling phenomenon.

[실시예 1

Figure kpo00009
4, 비교예 1
Figure kpo00010
2]Example 1
Figure kpo00009
4, Comparative Example 1
Figure kpo00010
2]

폴리에스테르 스판본드 부직포는 일반 폴리에스테르 중합체로 고유점도가 0.65이며 Tm이 251

Figure kpo00011
인 것을 사용하며, 저융점 폴리에스테르는 고유점도가 0.64이며 Tm이 220
Figure kpo00012
을 사용하며 폴리에스테르 중합체를 방사온도 290
Figure kpo00013
의 익스트루더를 이용하여 제1도에 도시된 바와 같이 내부층에만 저융점 폴리에스테르 필라멘트가 혼합되도록 방사하여 상온에서 냉각시켜 공기압이 4.7kg/cm2인 이젝터를 통하여 필라멘트를 연신시킨다.Polyester Spunbond Nonwovens are ordinary polyester polymers with an intrinsic viscosity of 0.65 and a Tm of 251.
Figure kpo00011
Low melting point polyester has an intrinsic viscosity of 0.64 and a Tm of 220
Figure kpo00012
Using a polyester polymer with a spinning temperature of 290
Figure kpo00013
As shown in FIG. 1, the extruder is used to spin the low fusing polyester filament only to the inner layer to be mixed and cooled at room temperature to stretch the filament through an ejector having an air pressure of 4.7 kg / cm 2 .

위의 필라멘트를 일정한 각도와 속도로 충돌판에 충돌시켜 이동되는 컨베어 위에 균일하게 하부의 흡입장치를 이용하여 적층시켜 웹을 형성한다. 상기 웹의 기초중량은 토출시 구금의 홀수, 토출량 및 컨베어의 속도에 의해 조절된다. 엠보싱에 있어서의 열접착 면적은 엠보싱 조각의 모양에 따라 11.4

Figure kpo00014
25
Figure kpo00015
이고 엠보싱로울의 표면 온도는 일반 폴리에스테르 필라멘트로만 구성된 저중량물(80g/m2이하수준)과 동일한 수준인 230
Figure kpo00016
235
Figure kpo00017
, 압력은 50
Figure kpo00018
65kg/cm2로 하여 부직포를 얻는다.The above filament is collided with a collision plate at a constant angle and speed to form a web by using a lower suction device uniformly stacked on the conveyor. The basis weight of the web is controlled by the odd number of detentions, the amount of discharge and the speed of the conveyor during the discharge. Thermal bonding area in embossing is 11.4 depending on the shape of the embossed piece.
Figure kpo00014
25
Figure kpo00015
The surface temperature of the embossing roll is 230, which is the same as that of the low weight material (80g / m 2 or less) composed only of ordinary polyester filament.
Figure kpo00016
235
Figure kpo00017
Pressure is 50
Figure kpo00018
A nonwoven fabric is obtained at 65 kg / cm 2 .

이때 각 실시예별 물성은 표 1과 같다. 비교예 1,2의 경우는 200g/m2를 일반 폴리에스테르 100

Figure kpo00019
로 제조했을시와 기존 방법대로 전체적으로 저융점 폴리에스테르를 17.5
Figure kpo00020
포함한 스판본드 부직포의 제조 경우이다. 이때는 두 경우 모두 엠보싱로울에서 박리현상이 발생하며, 제품상에서도 박리현상이 일어난다.At this time, the physical properties of each embodiment are shown in Table 1. In the case of Comparative Examples 1 and 2 , 200 g / m 2 was used for general polyester 100
Figure kpo00019
Low melting point polyester 17.5
Figure kpo00020
This is the case of manufacturing a spunbond nonwoven fabric. In this case, peeling phenomenon occurs in the embossing roll in both cases, and peeling phenomenon occurs in the product.

Figure kpo00021
Figure kpo00021

이와 같이 본 발명은 고중량물의 폴리에스테르 스판본드 부직포를 제조함에 있어서, 저융점 폴리에스테르 장섬유와 일반 폴리에스테르 장섬유간의 가교적인 교락을 긴밀히 하여 각 웹의 층간에 박리현상이 발생하지 않을 뿐만 아니라 부직포 표면이 고른 폴리에스테르 스판본드 부직포의 제조방법을 제공하고 있으며,As described above, in the manufacture of a high-weight polyester spanbond nonwoven fabric, the crosslinking entanglement between the low-melting polyester long fiber and the general polyester long fiber is closely followed, so that peeling does not occur between the layers of each web. To provide a method for producing a polyester spunbond nonwoven fabric with a non-woven surface,

내, 외부층에 존재하는 일반 폴리에스테르 및 저융점 폴리에스테르 장섬유의 비율을 달리함으로써 저융점 폴리에스테르 장섬유를 충분히 용융시킬 수 있는 온도를 가하여도 부직포 표면이 고르지 못하게 되는 단점을 제거할 수 있다.By varying the ratio of ordinary polyester and low-melting polyester long fibers present in the inner and outer layers, the disadvantage of uneven surface of the nonwoven fabric can be eliminated even when a temperature is sufficient to melt the low-melting polyester long fibers. .

Claims (2)

일반 폴리에스테르 장섬유와 저융점 폴리에스테르 장섬유를 복합 방사하여 스판본드 부직포를 제조함에 있어서, 하나의 구금면을 3개의 부분으로 분할시켜 각각 별개의 이젝터를 통해 웹을 형성시킨 후 이 웹이 적층될 때 상하층 부위에는 일반 폴리에스테르, 내층 부위에는 일반 폴리에스테르와 저융점 폴리에스테르가 복합 방사되도록 하는 것을 특징으로 하는 박리강도가 우수한 폴리에스테르 스판본드 부직포의 제조방법.In manufacturing the spunbond nonwoven fabric by combining spun polyester general fiber and low melting point polyester long fiber, one surface is divided into three parts to form webs through separate ejectors, and then the webs are laminated. When the upper and lower parts of the general polyester, the inner layer of the general polyester and low melting point polyester composite spinning method characterized in that the composite spun strength, characterized in that the composite spinning. 청구항 1에 있어서, 내층에 적층되는 폴리에스테르는 일반 폴리에스테르 장섬유 80
Figure kpo00022
90부에 저융점 폴리에스테르 장섬유 10
Figure kpo00023
20부로 구성됨을 특징으로 하는 박리강도가 우수한 폴리에스테르 스판본드 부직포의 제조방법.The method according to claim 1, wherein the polyester laminated to the inner layer is a general polyester long fiber 80
Figure kpo00022
Low melting point polyester long fiber 10
Figure kpo00023
A method for producing a polyester spanbond nonwoven fabric having excellent peel strength, comprising 20 parts.
KR1019970032875A 1997-07-15 1997-07-15 Method for manufacturing polyester spunbond nonwoven fabric having improved exfoliation strength KR100227580B1 (en)

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