KR20060116897A - The manufacturing method of long-staple spunbond non woven fabric having partially hydrophile property - Google Patents

The manufacturing method of long-staple spunbond non woven fabric having partially hydrophile property Download PDF

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KR20060116897A
KR20060116897A KR1020050039420A KR20050039420A KR20060116897A KR 20060116897 A KR20060116897 A KR 20060116897A KR 1020050039420 A KR1020050039420 A KR 1020050039420A KR 20050039420 A KR20050039420 A KR 20050039420A KR 20060116897 A KR20060116897 A KR 20060116897A
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hydrophilic
nonwoven fabric
partially
long
manufacturing
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KR100666833B1 (en
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박서진
김동욱
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도레이새한 주식회사
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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
    • D04H3/005—Synthetic yarns or filaments
    • D04H3/009—Condensation or reaction polymers
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/15577—Apparatus or processes for manufacturing
    • A61F13/15585—Apparatus or processes for manufacturing of babies' napkins, e.g. diapers
    • 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
    • D04H13/00—Other non-woven fabrics
    • 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
    • D04H3/03—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 at random
    • D04H3/037—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 at random reorientation by liquid
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
    • D06B1/00—Applying liquids, gases or vapours onto textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating
    • D06B1/02—Applying liquids, gases or vapours onto textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating by spraying or projecting
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
    • D06B1/00—Applying liquids, gases or vapours onto textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating
    • D06B1/10—Applying liquids, gases or vapours onto textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating by contact with a member carrying the treating material
    • D06B1/14—Applying liquids, gases or vapours onto textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating by contact with a member carrying the treating material with a roller
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2509/00—Medical; Hygiene
    • D10B2509/02—Bandages, dressings or absorbent pads
    • D10B2509/026—Absorbent pads; Tampons; Laundry; Towels

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Epidemiology (AREA)
  • Biomedical Technology (AREA)
  • Chemical & Material Sciences (AREA)
  • Vascular Medicine (AREA)
  • Manufacturing & Machinery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)

Abstract

A method for manufacturing the long-staple spun-bond non-woven fabric having a partially hydrophilic property is provided to easily prevent a leakage of fluid when using the spun-bond worked by a hydrophilic operation. An interception member with a teflon film is positioned on the surface of a rotation roller in the kiss-roll method so that the emulsion is not transmitted on the spun-bond. An emulsion injection interception member(8) is installed at the front of a nozzle in the injection method. The materials used as the interception member has preferably a small friction coefficient in the kiss-roll method so that the damage of the interception member is prevented. The interception member made of metal or plastic material is proper in the injection method.

Description

부분 친수성 장섬유 스판본드 부직포의 제조 방법{The manufacturing method of long-staple spunbond non woven fabric having partially hydrophile property}The manufacturing method of long-staple spunbond non woven fabric having partially hydrophile property

도 1은 회전롤러(Kiss roll)에 의한 종래의 친수 가공 방법을 개략적으로 나타내는 도면이고,1 is a view schematically showing a conventional hydrophilic processing method by a kis roll,

도 2는 본 발명의 방법에 따른 회전롤러(Kiss roll)에 의한 친수 가공 방법을 개략적으로 나타내는 도면이며,2 is a view schematically showing a hydrophilic processing method by a rotary roller (Kiss roll) according to the method of the present invention,

도 3은 본 발명의 방법에 따른 분사식 방법에서의 친수 가공 방법을 나타내는 개략적인 도면이고,3 is a schematic view showing a hydrophilic processing method in the spray method according to the method of the present invention,

도 4는 부분 친수 처리된 부직포의 전폭 형태를 나타내는 도면이다.It is a figure which shows the full width form of the partially hydrophilic nonwoven fabric.

* 도면의 주요 부분에 대한 부호의 설명.* Explanation of symbols for the main parts of the drawings.

1. : 부직포 2. : 회전롤러(Kiss roll)1.: Non-woven fabric 2.: Kiss roll

3. : 친수액조 4, 8. : 차단막3.: hydrophilic bath 4, 8.: barrier

5. : 친수액 분사 장치 6. : 친수액 처리부5.: hydrophilic injection device 6.: hydrophilic treatment unit

7. : 친수액 미처리부 9. : 절단부7.: hydrophilic untreated part 9.: cutting part

본 발명은 부분 친수성 장섬유 스판본드 부직포의 제조 방법에 관한 것으로, 좀 더 구체적으로는 부직포의 친수 처리시 부분적으로 친수유제를 차단하는 차단막을 이용하되 회전롤러(Kiss roll)에 의한 친수제 도포 방식의 경우에는 필름 형태의 차단막을 부분적으로 롤러 상부에 위치시키고, 분산시키는 방법으로 친수제를 도포하는 경우에는 판 형태의 차단막을 친수제 분산 장치의 분사 노즐 앞에 부분적으로 위치시켜 부분적으로 친수처리되도록 함을 특징으로 하는 부분 친수성 장섬유 스판본드 부직포의 제조 방법에 관한 것이다.The present invention relates to a method for producing a partially hydrophilic long-fiber spanbond nonwoven fabric, and more specifically, a hydrophilic coating method using a blocking roll using a barrier film that partially blocks a hydrophilic emulsion during hydrophilic treatment of a nonwoven fabric. In the case of the film-type barrier film is partially positioned on the upper roller, and in the case of applying the hydrophilic agent by dispersing method, the plate-shaped barrier film is placed in front of the spray nozzle of the hydrophilic dispersing device to be partially hydrophilic treatment It relates to a method for producing a partially hydrophilic long fiber spanbond nonwoven fabric characterized by.

일반적으로 부직포는 위생재, 잡화용, 농업용, 생활용품 분야, 그리고 필터등 산업자재에 이르기까지 광범위하게 사용되고 있으며, 그 수요는 날로 증가하고 있다. 특히, 스판본드 부직포는 경제성, 경량성, 성형성, 내약품성, 아름다운 외관 등의 우수한 특성을 가지고 있으므로 기저귀, 생리대 등의 위생자재, 가전제품과 OA기기 등의 포장재료, 철도차량과 항공기 및 자동차 내장재료, 일회용 작업복 등의 잡화에 널리 이용되고 있다.In general, nonwoven fabrics are widely used in sanitary, miscellaneous goods, agriculture, household goods, and industrial materials such as filters, and the demand is increasing day by day. In particular, the spunbond nonwoven fabric has excellent characteristics such as economy, light weight, moldability, chemical resistance, and beautiful appearance. Therefore, hygienic materials such as diapers and sanitary napkins, packaging materials such as home appliances and OA equipment, railway vehicles, aircraft and automobiles It is widely used for miscellaneous goods, such as interior materials and disposable work clothes.

위생재 분야에 있어 부직포의 적용은 부직포의 제조 공법에 따라 사용되는 부분이 구분되어 왔다. 부직포를 구성하는 섬유의 형태에 따라 단섬유 부직포, 장섬유 부직포로 구분될 수 있으며, 특히, 단섬유 부직포의 경우 위생재의 탑시트(Top-sheet)부분에 대부분 적용되었다. 하지만 방사성 장섬유 부직포의 기술이 향 상되어 촉감이 단섬유 부직포와 필적 또는 그 이상의 특성이 가능케 되었다. 통상적으로 위생재에 적용되는 단섬유 부직포의 경우에는 구성되는 섬유가 폴리프로필렌으로 소수성 특성을 가지므로 위생재의 탑시트용으로 적용하기 위해서는 섬유에 친수가공이 필요하다. 단섬유 부직포의 경우에는 친수성을 부여하는 유제처리를 섬유 방사시 처리하여 부직포를 제조하면 친수성을 가지는 부직포를 제조할 수 있다. 따라서, 단섬유 부직포의 경우에는 일정 부분만 친수성을 가지는 부직포를 제조하는데 어려움이 있다. 장섬유 부직포의 경우에는 구성되는 섬유가 폴리올레핀계 중 대부분이 폴리프로필렌으로 소수성을 지니므로 친수성을 부여하는 가공이 필요하다. 스판본드 부직포의 제조방법은 공지의 사항으로 필라멘트를 방사하고 무한의 벨트상에 웹으로 적층시켜 열과 압력으로 열접착을 통하여 부직포를 제조한다. 스판본드에 친수성 가공을 위해서 친수성을 부여하는 계면활성제를 스프레이 방식, 롤에 의해서 유제를 부직포에 전사시키는 회전롤러(Kiss-Roll) 방식 및 부직포를 계면활성제에 디핑(Dipping)하는 방식 등이 있다. 하지만 상기와 같은 방법으로는 부직포의 전폭에 친수가공이 되므로 부분적으로 친수성을 부여할 수 없었다.The application of nonwovens in the field of hygiene has been divided into parts used according to the manufacturing method of nonwovens. According to the type of fibers constituting the nonwoven fabric can be classified into short-fiber nonwoven fabric, long-fiber nonwoven fabric, in particular, the short-fiber nonwoven fabric was applied to the top-sheet portion of the sanitary material in most cases. However, the technology of radioactive long-fiber nonwovens has been improved, enabling the feel to be comparable to or better than short-fiber nonwovens. In the case of the short-fiber nonwoven fabric that is generally applied to the sanitary material, since the fiber is composed of polypropylene having hydrophobic properties, hydrophilic processing is required for the fiber to be applied for the top sheet of the sanitary material. In the case of short-fiber nonwoven fabrics, non-woven fabrics having hydrophilicity can be produced by preparing a nonwoven fabric by treating the fiber spinning with an emulsifying agent that gives hydrophilicity. Therefore, in the case of a short fiber nonwoven fabric, it is difficult to produce a nonwoven fabric having only a portion of the hydrophilic property. In the case of a long fiber nonwoven fabric, since most of the polyolefin-based fibers are hydrophobic with polypropylene, processing to impart hydrophilicity is necessary. The method of manufacturing a spanbonded nonwoven fabric is a known matter, which filaments are spun and laminated onto a web on an infinite belt to produce a nonwoven fabric through heat bonding with heat and pressure. There are a spray method, a rolling roller method of transferring an oil agent to a nonwoven fabric by a roll, a method of dipping the nonwoven fabric with a surfactant, and the like, for a hydrophilic process on a span bond. However, the hydrophilicity was not applied to the full width of the nonwoven fabric by the above method.

한편, 단섬유 부직포의 경우에도 섬유간 결합 방법에 따라 열접착 부직포(Thermal Bond) 및 열풍 접착 부직포(Air through)으로 구분될 수 있으며, 상술한 바와 같이 단섬유 부직포의 벌키성 및 소프감 특징으로 위생재의 탑시트(Topsheet)로 적용이 많이 되어왔다.Meanwhile, even in the case of a short fiber nonwoven fabric, it may be classified into a thermal bond non-woven fabric (Thermal Bond) and a hot air adhesive nonwoven fabric (Air through) according to the inter-fiber bonding method. As described above, the short fiber nonwoven fabric may be characterized as bulky and soft. It has been widely applied as a topsheet of sanitary materials.

또한, 장섬유 부직포의 경우에는 필라멘트 방사시 친수가공이 어렵기 때문에 웹을 열접착 후 친수가공을 실시한다. 통상적인 친수 부여 방법은 도 1에 도시된 국내 특허 출원번호 제2002-38181호에 기재된 것과 같이 에멀젼을 롤에 의해 부직포에 도포하는 회전롤러(kiss-roll)방식, 거품으로 도포하는 방식 및 스프레이 방식에 의해서 부직포 표면에 유제를 분산시키는 방법등이 있다.In addition, in the case of long fiber nonwoven fabric, since hydrophilic processing is difficult during filament spinning, hydrophilic processing is performed after heat bonding the web. Conventional hydrophilicity imparting method is a rotary roller (kiss-roll) method, a method of applying a foam and a spray method to apply the emulsion to the nonwoven fabric by a roll as described in the domestic patent application No. 2002-38181 shown in FIG. There is a method for dispersing the emulsion on the surface of the nonwoven fabric.

그러나, 상기와 같이 전면이 친수성 부직포를 위생재의 탑시트로 적용시킬 경우 탑시트의 표면에 유체(액체)가 부여되면 표면을 따라 유체가 이동되어 샐 수 있다. 따라서, 이러한 유체의 누수 문제를 해결하기 위해서는 일정 부분(중앙 부분)만 친수 처리가 되어 유체의 흐름을 제어가 필요하다.However, when applying the hydrophilic nonwoven fabric as the top sheet of the sanitary material as described above, if the fluid (liquid) is given to the surface of the top sheet, the fluid may move and leak along the surface. Therefore, in order to solve the fluid leakage problem, only a certain portion (central portion) is hydrophilized and needs to control the flow of the fluid.

위생재의 구조와 이에 사용되는 소재는 빠른 속도로 변화 및 개선 되어 왔다. 가장 중점적으로 개선이 된 부분은 위생재의 박막화(슬림화) 및 외관의 소프트화이다. 위생재 특히 기저귀의 슬림화는 필연적으로 흡수층의 구조의 변화가 동반되었다. 즉, 흡수층을 구성하고 있는 펄프의 양이 줄어들면서 고흡수성 고분자의 양이 증가되었다. 고흡수성 고분자의 증가와 펄프의 감소에 의한 슬림화된 기저귀의 경우에는 수직방향으로의 유체 흐름이 원활하지 않을 때에는 수평방향으로의 유체 흐름이 유발된다. 따라서, 전체면이 친수 가공된 부직포를 슬림화된 기저귀에 사용시 유체가 수평방향으로 이동되기 때문에 유체가 기저귀의 시스템을 벗어나 누수가 발생되므로 유체의 흐름을 방해하여 누수를 방지할 수 있는 부분 친수 부직포가 요구된다.The structure of sanitary materials and the materials used for them have changed and improved rapidly. The most important improvements were the thinning (thinning) of hygiene materials and the softening of the appearance. The slimming of hygiene materials, especially diapers, is inevitably accompanied by a change in the structure of the absorbent layer. That is, the amount of super absorbent polymer increased as the amount of pulp constituting the absorbent layer was reduced. In the case of the slimmed diaper due to the increase in the superabsorbent polymer and the decrease in the pulp, the fluid flow in the horizontal direction is caused when the fluid flow in the vertical direction is not smooth. Therefore, when the hydrophilic nonwoven fabric is used in a slim diaper, the fluid is moved in the horizontal direction. Therefore, the fluid is leaked out of the diaper system. Required.

따라서, 본 발명의 목적은 부직포를 슬림화된 기저귀에 사용시 유체가 수평 방향으로의 흐름을 방해하여 누수를 방지할 수 있는 부분 친수성 장섬유 스판본드 부직포의 제조 방법을 제공하는 데 있다.Accordingly, it is an object of the present invention to provide a method for producing a partially hydrophilic long fiber spanbonded nonwoven fabric that can prevent fluid from interfering with flow in the horizontal direction when the nonwoven fabric is used in a slimmed diaper.

상기 목적 뿐만 아니라 용이하게 표출되는 다른 목적들을 달성하기 위하여 본 발명에서는 부직포의 친수 처리시 부분적으로 친수유제를 차단하는 차단막을 이용하되 회전롤러(Kiss roll)에 의한 친수제 도포 방식의 경우에는 필름 형태의 차단막을 부분적으로 롤러 상부에 위치시키고, 분산시키는 방법으로 친수제를 도포하는 경우에는 판 형태의 차단막을 친수제 분산 장치의 분사 노즐 앞에 부분적으로 위치시켜 부분적으로 친수처리되도록 함으로서 전체적으로 친수 가공된 부직포를 기저귀 등에 사용시 유체가 수평방향으로 이동되기 때문에 유체가 기저귀 등의 시스템을 벗어나 누수되는 문제점을 용이하게 방지 할 수 있도록 하였다.In order to achieve the above objects as well as other objects that are easily expressed in the present invention, in the case of the hydrophilic coating method using a rolling roll (Kiss roll) in the form of a film to block the hydrophilic emulsion partially during hydrophilic treatment of the nonwoven fabric When the hydrophilic agent is applied by partially placing the barrier film on the roller and dispersing it, the plate-shaped barrier film is partially positioned in front of the spray nozzle of the hydrophilic dispersing apparatus so that the hydrophilic treatment is partially performed. When the diaper or the like is used, the fluid is moved in the horizontal direction so that the fluid leaks out of the diaper system.

본 발명을 첨부 도면에 의거하여 좀 더 구체적으로 설명하면 다음과 같다.Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings.

도 2는 본 발명의 방법에 따른 회전롤러(Kiss roll)에 의한 친수 가공 방법을 개략적으로 나타내는 도면이며, 도 3은 분사식 방법에서의 친수 가공 방법을 나타내는 개략적인 도면이고, 도 4는 부분 친수 처리된 부직포의 전폭 형태를 나타내는 도면이다.2 is a view schematically showing a hydrophilic processing method by a rotary roller (Kiss roll) according to the method of the present invention, Figure 3 is a schematic view showing a hydrophilic processing method in the spray method, Figure 4 is a partial hydrophilic treatment It is a figure which shows the full width form of the nonwoven fabric.

본 발명에 따른 부분 친수성 장섬유 스판본드 부직포의 제조 방법은 부직포의 친수 처리시 부분적으로 친수유제를 차단하는 차단막을 이용하되 회전롤러(Kiss roll)에 의한 친수제 도포 방식의 경우에는 필름 형태의 차단막을 부분적으로 롤러 상부에 위치시키고, 분산시키는 방법으로 친수제를 도포하는 경우에는 판 형태의 차단막을 친수제 분산 장치의 분사 노즐 앞에 부분적으로 위치시켜 부분적으로 친수처리되도록 하는 것으로 특징지어진다.The method of manufacturing a partially hydrophilic long fiber spanbond nonwoven fabric according to the present invention uses a barrier film that partially blocks the hydrophilic oil during hydrophilic treatment of the nonwoven fabric, but in the case of applying a hydrophilic agent by a kis roll, it is a film-type barrier film. When the hydrophilic agent is applied by a method of partially placing the upper portion of the roller and dispersing, the barrier film in the form of a plate is partially positioned in front of the spray nozzle of the hydrophilic dispersing apparatus so as to be partially hydrophilized.

본 발명에 있어서 부직포의 제조 방법은 장섬유 스판본드식이며, 친수가공을 통하여 친수성을 부여하는 공정이 포함된다. 장섬유 스판본드의 제조방법은 공지의 방법으로 열가소성 수지 특히, 폴리올레핀계인 폴리프로필렌 수지를 이용하여 용융방사하여 필라멘트를 형성하고 연신 및 필라멘트 적층에 의한 웹을 형성하고 칼렌더 롤로 열과 압력을 부여하여 일면에 엠보싱이 형성되는 부직포를 제조한다. 다층구조 SMS(Spun-bond/Melt blown/Spun-bond)계 부직포의 경우에는 스판본드 웹형성 후에 멜트블로운 필라멘트가 적층되고 다시 스판본드가 적층되면 다층구조인 SMS계 부직포가 형성된다.In this invention, the manufacturing method of a nonwoven fabric is a long fiber span bond type | system | group, and the process of providing hydrophilicity through a hydrophilic process is included. The method for producing a long fiber span bond is a well-known method using a thermoplastic resin, in particular, a polyolefin-based polypropylene resin to melt-spin to form filaments, form webs by stretching and filament lamination, and apply heat and pressure with a calender roll to one side. A nonwoven fabric is produced in which embossing is formed. In the case of multi-layer SMS (Spun-bond / Melt blown / Spun-bond) nonwoven fabric, when the meltblown filaments are laminated after the span bond web is formed, and the spun bond is laminated again, a multi-layer SMS-based nonwoven fabric is formed.

상기 스판본드 부직포나 멜트블로운 부직포가 함유된 다층구조 부직포는 공지의 방법으로 제조할 수 있다.The multi-layered nonwoven fabric containing the spunbond nonwoven fabric or the meltblown nonwoven fabric can be produced by a known method.

즉, 용융가소성 수지를 용융시켜 다수개의 오리피스로 압출시켜 필라멘트를 형성시키고, 필라멘트를 고체화 시키기 위해 냉각챔버로부터 부여되는 냉각공기로 냉각시키고 연신과정을 통하여 작은 직경의 섬유를 제조하여 스판본드 부직포 제조에 사용한다.That is, the molten plastic resin is melted and extruded into a plurality of orifices to form a filament, and cooled with cooling air provided from a cooling chamber to solidify the filament, and a fiber of a small diameter is produced through the stretching process to produce a spunbond nonwoven fabric. use.

또한, 용융흐름지수(MI: Melt Index)가 800 ∼ 1200g/10분인 폴리프로필렌 수지를 용융하고 다수개의 오리피스로 방사할 때 구금의 양쪽에서 강한열풍으로 불어주어 극세사를 만들어 멜트블로운 부직포 제조에 사용하며, 통상적으로 멜트블로 운 부직포의 섬도는 0.01 ∼ 0.1데니아의 섬도를 가진다.In addition, it melts polypropylene resin with a melt flow index (MI) of 800 to 1200 g / 10 minutes and blows it with strong hot air from both sides of the detention when it is spun into a plurality of orifices to make microfibers for manufacturing meltblown nonwoven fabrics. In general, the fineness of the melt blown nonwoven fabric has a fineness of 0.01 to 0.1 denier.

상기에서와 같이 제조된 필라멘트가 무한의 컨베이어벨트에 적층되어 웹이 형성되고 열칼렌더에 의해 열접착(Point Bond)으로 형태안정성과 역학적 특성을 가지는 부직포로 형성된다. 이때 스판본드만 구성되는 부직포를 제조할수 있으며, 스판본드 내부에 멜트블로운 층을 가지게 만드면, 다층구조의 SMS계 부직포를 제조 할 수 있다.The filament manufactured as described above is laminated on an endless conveyor belt to form a web, and is formed of a nonwoven fabric having morphological stability and mechanical properties by thermal bonding with a point bond. At this time, it is possible to manufacture a non-woven fabric consisting of only the span bond, and to make a melt-blown layer inside the span bond, it is possible to manufacture a multi-layer SMS-based nonwoven fabric.

상기와 같이 제조된 부직포는 통상적으로 소수성으로 친수특성을 나타내지 못하기 때문에 친수가공을 통하여 친수성을 부여한다.Since the nonwoven fabric prepared as described above is usually hydrophobic and does not exhibit hydrophilicity, it provides hydrophilicity through hydrophilic processing.

즉, 도 1에 도시된 바와 같이 친수액조(batch, 3)내에 함침된 회전롤러(2)의 회전에 의해서 친수조액이 부직포(1)로 전달되고 친수조액이 흡수된 부직포는 건조공정을 통하여 친수부직포로 제조되는 통상적인 회전롤러(Kiss-roll)방식에 의한 친수 가공 부여 방식이 적용된다.That is, as shown in FIG. 1, the hydrophilic bath liquid is transferred to the nonwoven fabric 1 by the rotation of the rotating roller 2 impregnated in the hydrophilic bath (batch) 3, and the nonwoven fabric in which the hydrophilic bath liquid is absorbed is dried. The hydrophilic processing imparting method by a conventional rotary roller (Kiss-roll) method is made of a hydrophilic nonwoven fabric is applied through.

뿐만 아니라, 공지의 스프레이 방식에 의해서 부직포 표면에 유제를 분산시키는 방법도 적용되고 있다.Moreover, the method of disperse | distributing an oil agent to the surface of a nonwoven fabric by a well-known spray system is also applied.

그러나, 상기와 같은 방법들은 부직포 전체 면에 친수가공이 되기 때문에 부분적인 친수가공이 어려운 문제점이 있다.However, the above methods are difficult to partially hydrophilic because the non-woven fabric is hydrophilic on the entire surface.

따라서, 본 발명에서는 회전롤러(Kiss-roll)방식 경우에는 회전롤러 표면에 유제가 흡수되지 않는 테프론 필름의 차단막(4)을 위치하게 하여, 유제가 부직포에 전달되지 않게 하였으며, 분사식 방법의 경우에는 분사되는 노즐 앞에 유제분사 차단막(8)을 설치하여 유제가 부직포에 전달되지 못하도록 하여 부분친수 부직포 제 조가 가능케 하였다.Therefore, in the present invention, in the case of a rotary roller (Kiss-roll), by placing the blocking film (4) of the Teflon film that the oil is not absorbed on the surface of the rotating roller, the oil is not transferred to the nonwoven fabric, in the case of the spray method An emulsion spray barrier 8 was installed in front of the nozzle to prevent the oil from being transferred to the nonwoven fabric, thereby making it possible to manufacture a partially hydrophilic nonwoven fabric.

상기와 같이 회전롤러 방식이나 분사식 방식을 공정 중에 처리하는 방법으로 부직포에 친수성을 부여하되, 칼렌더에 의해 형태안정성이 확보된 부직포에 친수성을 부여하고 건조를 실시한 후에 권취하여 본 발명에 따른 부직포를 제조한다.As described above, the non-woven fabric is imparted with hydrophilicity to the nonwoven fabric by the method of processing the roller or spray method during the process, and the hydrophilicity is imparted to the nonwoven fabric having secured form stability by calendering, followed by drying, followed by winding to prepare the nonwoven fabric according to the present invention. do.

본 발명에서 차단막(4, 8)으로 사용되는 소재는 친수제에 젖지 않는 소재이면 어떠한 것이라도 사용이 가능하다. 그러나, 회전롤러 방식에 있어서는 회전에 따른 마찰에 의해서 차단막(4)이 손상이 되지 않게 하기 위해서 마찰계수가 작은 소재를 사용하는 것이 바람직하며, 두께가 두꺼워지면 차단막(4)과 인접한 부분에 친수액이 도포되지 않는 공간이 형성되어 목적하는 부분이 완전히 친수처리되지 않는 문제점이 있으므로 가능한 한 얇은 필름형태가 유리하다. 본 발명에서는 테프론 필름을 이용하였으나, 이것이 본 발명을 한정하는 것은 아니다.The material used as the barrier films 4 and 8 in the present invention may be used as long as the material does not get wet with the hydrophilic agent. However, in the rotary roller method, it is preferable to use a material having a small coefficient of friction so that the barrier film 4 is not damaged by the friction caused by the rotation. When the thickness is thick, the hydrophilic liquid is adjacent to the barrier film 4. This uncoated space is formed so that the desired portion is not completely hydrophilic, so a thin film form is advantageous as much as possible. In the present invention, a Teflon film was used, but this does not limit the present invention.

분사 방식에 있어서의 차단막(8)은 분산유제의 분산압력을 차단가능하고, 또한 항상 유제가 접촉되므로 녹이 형성되지 않는 금속성 소재나 플라스틱소재가 적정하다.The barrier film 8 in the spraying system can block the dispersing pressure of the dispersing oil and is always suitable for the metallic material or the plastic material, in which no rust is formed, because the dispersing oil is always in contact with the oil.

도 4는 본 발명의 방법에 의하여 부분 친수된 부직포 전체 폭의 형태를 나타낸 것으로 도면 부호 9는 절단될 부분을 나타낸 것이다. 즉, 절단 공정에서 상기 부분을 절단하면서 권취시키면 중앙 부분이 친수처리가 되고 주변영역이 친수처리되지 않은 부분 친수 부직포가 형성된다. 요구되는 부직포의 롤 폭과 친수영역 폭에 따라서 차단막(4, 8)의 위치를 디자인하여 적용하면 다양한 재품 폭과 친수되는 폭의 넓이를 조절하여 생산이 가능하다.Figure 4 shows the form of the entire width of the non-woven fabric partially hydrophilic by the method of the present invention 9 is a portion to be cut. In other words, when the portion is wound while being cut in the cutting process, the central portion is hydrophilized and a peripheral portion of the hydrophilic nonwoven fabric is formed. By designing and applying the positions of the barrier films 4 and 8 according to the roll width and the hydrophilic region width of the nonwoven fabric required, it is possible to produce by adjusting the width of various products and the width of the hydrophilic width.

상술한 바와 같이 본 발명에서는 부직포의 친수 처리시 부분적으로 친수유제를 차단하는 차단막을 이용하되 회전롤러(Kiss roll)에 의한 친수제 도포 방식의 경우에는 필름 형태의 차단막을 부분적으로 롤러 상부에 위치시키고, 분산시키는 방법으로 친수제를 도포하는 경우에는 판 형태의 차단막을 친수제 분산 장치의 분사 노즐 앞에 부분적으로 위치시켜 부분적으로 친수처리되도록 함으로서 전체적으로 친수 가공된 부직포를 기저귀 등에 사용시 유체가 수평방향으로 이동되기 때문에 유체가 기저귀 등의 시스템을 벗어나 누수되는 문제점을 용이하게 방지 할 수 있도록 하였다.As described above, in the present invention, when the hydrophilic treatment of the nonwoven fabric is used, the barrier film partially blocks the hydrophilic agent, but in the case of the hydrophilic agent coating method by a kis roll, the film-type barrier film is partially positioned on the roller. In the case of applying the hydrophilic agent by the method of dispersing the liquid, the plate-shaped barrier film is partially positioned in front of the spray nozzle of the hydrophilic dispersing device to partially hydrophilize the fluid. Therefore, it is possible to easily prevent the problem that the fluid leaks out of the system, such as diapers.

Claims (4)

공지의 부직포 제조 공정에 있어서, 부직포의 친수 처리시 부분적으로 친수유제를 차단하는 차단막을 이용하여 부분적으로 친수처리되도록 함을 특징으로 하는 부분 친수성 장섬유 스판본드 부직포의 제조 방법.A method for producing a partially hydrophilic long fiber spunbond nonwoven fabric, which is known in the known nonwoven fabric manufacturing process, wherein the hydrophilic treatment of the nonwoven fabric is partially hydrophilic using a barrier film that partially blocks the hydrophilic agent. 청구항 1에 있어서, 차단막은 회전롤러(Kiss roll)에 의한 친수제 도포 방식의 경우에 필름 형태의 차단막을 부분적으로 롤러 상부에 위치시키는 것을 특징으로 하는 부분 친수성 장섬유 스판본드 부직포의 제조 방법.The method of manufacturing a partially hydrophilic long-fiber spanbond nonwoven fabric according to claim 1, wherein the barrier film is partially positioned on the roller in the case of a hydrophilic coating method by a kis roll. 청구항 1에 있어서, 차단막은 분산시키는 방법으로 친수제를 도포하는 경우에 판 형태의 차단막을 친수제 분산 장치의 분사 노즐 앞에 부분적으로 위치시키는 것을 특징으로 하는 부분 친수성 장섬유 스판본드 부직포의 제조 방법.The method for producing a partially hydrophilic long fiber spanbond nonwoven fabric according to claim 1, wherein the barrier film is partially positioned in front of the spray nozzle of the hydrophilic dispersion device when the hydrophilic agent is applied by a dispersion method. 청구항 1 내지 청구항 3 중 어느 한 항의 방법으로 제조된 것으로 위생재 탑시트로 사용되는 것을 특징으로 하는 부분 친수성 장섬유 스판본드 부직포.A partially hydrophilic long fiber spanbonded nonwoven fabric produced by the method of any one of claims 1 to 3 and used as a sanitary topsheet.
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KR20170074403A (en) 2015-12-22 2017-06-30 도레이첨단소재 주식회사 Hydrophilic spunbond nonwoven fabric having an excellent shift stability and manufacturing method thereof

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KR20170074403A (en) 2015-12-22 2017-06-30 도레이첨단소재 주식회사 Hydrophilic spunbond nonwoven fabric having an excellent shift stability and manufacturing method thereof

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