KR101395593B1 - Method of producing nonwoven fabric with micro fiber and product thereby produced - Google Patents

Method of producing nonwoven fabric with micro fiber and product thereby produced Download PDF

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KR101395593B1
KR101395593B1 KR1020120059001A KR20120059001A KR101395593B1 KR 101395593 B1 KR101395593 B1 KR 101395593B1 KR 1020120059001 A KR1020120059001 A KR 1020120059001A KR 20120059001 A KR20120059001 A KR 20120059001A KR 101395593 B1 KR101395593 B1 KR 101395593B1
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nonwoven fabric
microfine
antimony
free
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KR20130135443A (en
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이창헌
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(주)태봉
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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
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4382—Stretched reticular film fibres; Composite fibres; Mixed fibres; Ultrafine fibres; Fibres for artificial leather
    • D04H1/43838—Ultrafine fibres, e.g. microfibres
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G15/00—Carding machines or accessories; Card clothing; Burr-crushing or removing arrangements associated with carding or other preliminary-treatment machines
    • 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
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4326—Condensation or reaction polymers
    • D04H1/4334—Polyamides
    • 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
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4326—Condensation or reaction polymers
    • D04H1/435—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
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4382—Stretched reticular film fibres; Composite fibres; Mixed fibres; Ultrafine fibres; Fibres for artificial leather
    • D04H1/43835—Mixed fibres, e.g. at least two chemically different fibres or fibre blends
    • 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
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/44—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling
    • D04H1/46—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
    • D04H1/492—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres by fluid jet
    • 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
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
    • D06C3/00—Stretching, tentering or spreading textile fabrics; Producing elasticity in textile fabrics
    • 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
    • D10B2505/00—Industrial
    • D10B2505/04—Filters
    • 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
    • D10B2505/00—Industrial
    • D10B2505/08—Upholstery, mattresses
    • 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

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mechanical Engineering (AREA)
  • Nonwoven Fabrics (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)

Abstract

본 발명은 분할형 섬유 부직포를 이용한 극세사 부직포의 제조방법 및 이를 이용한 제품에 관한 것으로, 더욱 상세하게는 제1성분과 제2성분으로 이루어지는 분할형 섬유를 이용하여 부직포를 제조한 후, 상기 제2성분을 수산화나트륨으로 용출, 용해시킴으로써 극세사 부직포를 제조하는 것이다.
본 발명은 제1성분과 제2성분으로 구성되는 분할형 섬유를 사용하여 부직포를 제조하는 단계와, 상기 제조된 부직포를 수산화나트륨을 이용하여 제2성분을 용출, 용해시킴으로써, 제1성분을 분할하여 극세사 부직포를 제조하는 단계를 포함하여 이루어지며, 상기 제1성분 및 제2성분은 상기 제1성분은 나일론이고 제2성분은 안티몬이 없는 폴리에스테르인 것, 상기 제1성분은 폴리프로필렌이고 제2성분은 안티몬이 없고 물에 녹는 성질이 부여된 폴리에스테르인 것, 상기 제1성분은 안티몬이 없는 폴리에스테르이고 제2성분은 폴리락트산(PLA)인 것 중 어느 하나인 것을 특징으로 한다.
본 발명에 의하면 친환경 극세사 부직포의 생산이 가능하며, 상기 친환경 극세사 부직포를 이용하여 별도의 봉제가공없이 커팅공정만으로 완제품을 생산할 수 있다는 장점이 있다.The present invention relates to a method for producing a microfine nonwoven fabric using a split fiber nonwoven fabric and a product using the same, and more particularly, to a method for producing a nonwoven fabric using split fibers comprising a first component and a second component, The component is dissolved and dissolved in sodium hydroxide to prepare a microfine nonwoven fabric.
The present invention relates to a method for producing a nonwoven fabric, comprising the steps of: preparing a nonwoven fabric by using split fibers composed of a first component and a second component; and dissolving and dissolving the second component in the nonwoven fabric by using sodium hydroxide, Wherein the first component and the second component are polyesters wherein the first component is nylon and the second component is antimony free, the first component is polypropylene and the second component is polypropylene, Wherein the first component is a polyester without antimony and the second component is a polylactic acid (PLA). The second component is a polyester having no antimony and imparted with water-soluble properties.
According to the present invention, it is possible to produce eco-friendly microfine nonwoven fabric, and the eco-friendly microfine nonwoven fabric can be used to produce an end product by only a cutting process without additional sewing.

Description

분할형 섬유 부직포를 이용한 극세사 부직포의 제조방법 및 이를 이용한 제품.{METHOD OF PRODUCING NONWOVEN FABRIC WITH MICRO FIBER AND PRODUCT THEREBY PRODUCED}METHOD OF PRODUCING NONWOVEN FABRIC WITH MICRO FIBER AND PRODUCT THEREBY PRODUCED BACKGROUND OF THE INVENTION 1. Field of the Invention [0001]

본 발명은 분할형 섬유 부직포를 이용한 극세사 부직포의 제조방법 및 이를 이용한 제품에 관한 것으로, 더욱 상세하게는 제1성분과 제2성분으로 이루어지는 분할형 섬유를 이용하여 부직포를 제조한 후, 상기 제2성분을 수산화나트륨으로 용출, 용해시킴으로써 극세사 부직포를 제조하는 것이다.The present invention relates to a method for producing a microfine nonwoven fabric using a split fiber nonwoven fabric and a product using the same, and more particularly, to a method for producing a nonwoven fabric using split fibers comprising a first component and a second component, The component is dissolved and dissolved in sodium hydroxide to prepare a microfine nonwoven fabric.

부직포는 천연섬유, 화학섬유, 유리섬유, 금속섬유 등 각종 섬유를 상호 간의 특성에 따라, 엉키게 하는 시트 모양의 웹(Web)을 형성하고, 이를 기계적 또는 물리적 방법으로 결합시켜 만든 평면구조의 섬유구조체라고 정의할 수 있다.The nonwoven fabric is formed by forming a sheet-like web that tangles various kinds of fibers such as natural fibers, chemical fibers, glass fibers, and metal fibers according to their mutual characteristics, and combines them by mechanical or physical methods. It can be defined as a structure.

즉 부직포는 종이나 직물을 대체하는 피복재료로서 통상의 부직포는 천을 짜지 않고 원사를 적층시켜서 만들어 지는 피륙을 지칭하는 것으로서, 천연 또는 화학, 재생 등의 각종 섬유 소재를 상호간에 일정한 방향성 없이 엉키게 하여 시트(sheet)형태의 웹(Web)을 형성한 다음, 이를 화학적, 물리적인 방법으로 결합·안정화시키고 종이나 천과 같이 제조하여 산업 자재나 생활주변에서 그 사용 목적에 따라 광범위하게 활용되고 있다.That is, the nonwoven fabric is a covering material replacing a paper or fabric. A typical nonwoven fabric refers to a fabric made by laminating a yarn without weaving a cloth. Various nonwoven fabrics such as natural, chemical, and regenerated are tangled to each other without a certain direction It forms a web of sheet form and then combines and stabilizes it by chemical and physical methods and manufactures it like paper or cloth and is widely used according to the purpose of use in industrial materials and living environment.

이 중, 극세섬유(micorofiber)를 이용하여 제조된 부직포는 비표면적 확대로 인해 탁월한 유연성, 감촉, 고흡액성, 와이핑 특성(wiping property)등의 이점으로 인하여 광범위한 용도로 사용되고 있다. 섬유의 극세화가 이루어질수록 유연성과 부드러움이 증대되고 굽힘저항이 작아지게 되며, 부직포상에서 조직의 치밀화, 공극의 극소화가 얻어진다.Of these, nonwoven fabrics manufactured using micorofiber have been used for a wide variety of applications due to the advantages of excellent flexibility, feel, high water retention, and wiping property due to enlargement of specific surface area. As the fiber microfabrication is performed, flexibility and softness are increased and the bending resistance is reduced, and densification of the structure and minimization of pores are obtained on the nonwoven fabric.

상기 극세섬유를 이용하여 제조된 극세사 부직포(분할형 극세사)는 제1성분과 제2성분으로 되는 분할면 섬유를 제품용도에 적합하도록 니들펀칭 또는 스판레이스 공정을 통해 부직포화한 후, 수산화나트륨을 이용하여 제2성분을 녹여내는 극세화공정을 거처 제조되며, 이렇게 제조된 극세사 부직포는 인공피혁 혹은 와이퍼를 생산하고 있다. 그러나 상기한 극세화 공정에서 환경법상 산업폐기물에 해당하는 다량의 폴리에스테르계(PET) 올리고머(Oligomer)가 발생되는 문제가 있었다. 상기 부산물로 발생된 폴리에스테르계 올리고머는 극세화 공정에서 기계장치에 침전되거나 폐수처리 공정에서 폐수처리되지 않고 침전되어 인위적으로 분리공정을 거친 후 토양에 매립하고 있어 환경오염을 유발하고 있는 실정이다.The microfine nonwoven fabric (split type microfine fiber) produced by using the microfine fibers is obtained by making the divided fibers of the first and second components nonwoven through a needle punching or span lace process suitable for the purpose of use, The microfiber nonwoven fabric thus produced produces artificial leather or wipers. However, there has been a problem in that a large amount of polyester (PET) oligomer corresponding to industrial waste is generated in the microfabrication process according to environmental laws. The polyester oligomer generated as a byproduct is precipitated in a mechanical device in the microfabrication process or precipitated without wastewater treatment in a wastewater treatment process, and is artificially separated and buried in the soil to cause environmental pollution.

또한 상기한 분할형 극세사의 경우 얀(YARN)형태로, 환편 및 경편 또는 직물로 제직을 하여 반드시 4면을 봉제 가공을 해야만 완성품이 되나, 봉제가공이란 노동집약적인 산업으로, 중국 및 베트남 등의 저임금국가 지속적으로 투자를 통하여 판매를 늘리고 있으나, 우리 나라의 경우 갈수록 경쟁력을 상실하고 있는 실정이다.In addition, in the case of the above-described split micro-yarn, the yarn is YARN, and the yarn is knitted with circular or warp knitting yarn or fabric so that the yarn must be sewn on four sides. However, sewing is a labor intensive industry. Low-wage countries are continuing to increase sales through investment, but Korea is becoming less and less competitive.

삭제delete

따라서 폴리에스테르계 올리고머의 발생이 없으며, 별도의 봉제 가공이 필요없는 극세사 부직포의 개발이 요구된다.
Therefore, it is required to develop a microfine nonwoven fabric which does not generate a polyester oligomer and does not require a separate sewing process.

공개특허공보 제2010-0016424호 (2010년 2월 12일 공개)Published Patent Application No. 2010-0016424 (published on February 12, 2010)

본 발명은 부직포의 극세사화를 위한 것으로, 분할면 섬유 부직포를 극세사 부직포로 제조하되 제조과정 중 환경오염물질이 발생되지 않도록 함으로써, 우수한 강도로서 다양한 분야에 극세사 부직포를 적용할 수 있도록 하고, 필터 등으로 사용시에는 미세분진을 포집할 수 있도록 하는 것을 목적으로 한다.Disclosed is a microfiber nonwoven fabric for microfabrication of a nonwoven fabric. The microfibrillated nonwoven fabric is made of a microfiber nonwoven fabric and prevents environmental pollutants from being generated during the manufacturing process. Thus, the microfiber nonwoven fabric can be applied to various fields with excellent strength, And it is intended to be able to collect fine dust when it is used.

또한 별도의 봉제가공없이 커팅공정만으로 완제품의 제조가 가능하도록 하는 것을 목적으로 한다.It is another object of the present invention to make it possible to manufacture an article by a cutting process without a separate sewing process.

상기한 목적을 달성하기 위한 본 발명의 분할형 섬유 부직포를 이용한 극세사 부직포의 제조방법은, 제1성분과 제2성분으로 구성되는 분할형 섬유를 사용하여 카딩 및 워터펀칭 공정을 거쳐 부직포를 제조하는 단계와, 상기 제조된 부직포를 수산화나트륨을 이용하여 제2성분을 용출, 용해시킴으로써, 제1성분을 분할하여 극세사 부직포를 제조하는 단계 및 수세 후, 140℃, 30rpm에서 건조 또는 텐터하는 단계를 포함하며, 상기 제1성분은 폴리프로필렌이고 제2성분은 안티몬이 없고 물에 녹는 성질이 부여된 폴리에스테르인 것 또는 상기 제1성분은 안티몬이 없는 폴리에스테르이고 제2성분은 폴리락트산(PLA)인 것 중 어느 하나인 것을 특징으로 한다.In order to accomplish the above object, the present invention provides a method for producing a microfine nonwoven fabric using a split fiber nonwoven fabric, comprising the steps of: preparing a nonwoven fabric by carding and water punching using split fibers comprising a first component and a second component; Separating the first component to prepare a microfine nonwoven fabric by dissolving and dissolving the second component in the nonwoven fabric by using sodium hydroxide, and drying or tentering the microfiber at 140 rpm and 30 rpm after washing with water Wherein the first component is a polypropylene and the second component is a polyester that is free of antimony and imparts water-soluble properties, or wherein the first component is a polyester without antimony and the second component is a polylactic acid (PLA) And the like.

또한 상기 제1성분 및 제2성분은 85:15~60:40 중량비인 것을 특징으로 한다.And the first component and the second component are in a weight ratio of 85:15 to 60:40.

또한 상기 제1성분은 8개로 분할되는 것을 특징으로 한다.And the first component is divided into eight parts.

또한 상기 분할형 섬유의 두께는 1.5~4.0데니어인 것을 특징으로 한다.And the thickness of the split fibers is 1.5 to 4.0 denier.

또한 상기 제조된 부직포를 수산화나트륨을 이용하여 제2성분을 용출, 용해하는 방법은 저온용출법인 것을 특징으로 한다.The method of dissolving and dissolving the second component in the nonwoven fabric by using sodium hydroxide is characterized by being a low-temperature leaching method.

그리고 상기 제조방법을 이용한 제품은 의약외품, 부직포 커버, 와이퍼, 오일 클리닝 페이퍼 및 산업용 필터 중 어느 하나인 것을 특징으로 한다.The product using the manufacturing method is characterized in that it is any one of a quasi-drug, a nonwoven cover, a wiper, an oil cleaning paper and an industrial filter.

본 발명에 따르면 분할면 섬유를 이용하여 간단하게 극세사 부직포를 제조할 수 있으므로, 부직포의 고품질화를 통해 다양한 분야에 부직포를 적용할 수 있도록 한다.According to the present invention, the microfine nonwoven fabric can be easily manufactured using the split face fibers, so that the nonwoven fabric can be applied to various fields by improving the quality of the nonwoven fabric.

또한 제조과정 중 환경오염물질의 발생이 없어 친환경 제품으로서의 활용이 가능하고, 친환경 극세사 부직포로서 부직포의 신규시장 창출이 가능하며, 별도의 공제 가공 없이 기계적 커팅만으로 제품을 완성할 수 있어 그 생산성을 높일 수 있고 제품의 원가를 낮출 수 있게 되는 등의 유용한 효과가 있다.In addition, since there is no environmental pollution during manufacturing process, it can be used as an eco-friendly product, and it is possible to create a new market of nonwoven fabric as an environmentally friendly microfiber nonwoven fabric and it is possible to complete the product only by mechanical cutting without additional deduction, And the cost of the product can be lowered.

도 1은 본 발명에 따른 분할된 극세사 부직포의 섬유 단면 사진.BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a fiber cross-sectional photograph of a divided micro-fiber nonwoven fabric according to the present invention. FIG.

이하, 본 발명을 상세히 설명하면 다음과 같다.Hereinafter, the present invention will be described in detail.

먼저 본 발명은 크게 제1성분과 제2성분으로 구성되는 분할형 섬유를 사용하여 부직포를 제조하는 단계와, 상기 제조된 부직포를 수산화나트륨을 이용하여 제2성분을 용출, 용해시킴으로써, 제1성분을 분할하여 극세사 부직포를 제조하는 단계를 포함하여 이루어진다.The present invention relates to a process for producing a nonwoven fabric using splittable fibers consisting essentially of a first component and a second component and a step of dissolving and dissolving the second component in the nonwoven fabric by using sodium hydroxide, To produce a microfine nonwoven fabric.

여기서 상기 제1성분과 제2성분으로 구성되는 분할형 섬유는 서로 다른 2종류의 폴리머를 85:15~60:40 중량비로 혼합하여 복합방사한 후, 이를 연신, 열고정, 권축 및 절단공정을 거쳐 분할형 단섬유를 제조하여서 된 것이다.The split fibers composed of the first component and the second component are prepared by mixing two different kinds of polymers at a weight ratio of 85:15 to 60:40 and then spinning the mixture, Thereby producing split short fibers.

여기서 상기 분할형 단섬유는 그 두께가 약 1.5~4.0데니어 정도이며, 그 섬유장은 18~50정도이다.The split short fibers have a thickness of about 1.5 to 4.0 denier and a fiber length of about 18 to 50.

그리고 상기 폴리머의 혼합비를 85:15~60:40로 하는 이유는 상기한 혼합비를 벗어날 경우 도 1과 같이 분할된 단면을 갖는 섬유를 얻기 어렵기 때문이다.The reason why the mixing ratio of the polymer is 85:15 to 60:40 is that it is difficult to obtain a fiber having a sectional shape as shown in FIG. 1 when the mixing ratio is out of the above range.

본 발명에서는 상기 제1성분 및 제2성분으로서, 상기 제1성분은 나일론(Nylon)이고 제2성분은 안티몬이 없는 폴리에스테르(Sb-free CD, Sb-free Cation dyeable)인 것, 상기 제1성분은 폴리프로필렌(PP)이고 제2성분은 안티몬이 없고 물에 녹는 성질이 부여된 폴리에스테르(Sb-free WSD, Sb-free water-soluble semi dull)인 것, 상기 제1성분은 안티몬이 없는 폴리에스테르(Sb-free SD, Sb-free semi dull)이고 제2성분은 폴리락트산(PLA)인 것 중 어느 하나를 사용할 수 있다.In the present invention, it is preferable that, as the first component and the second component, the first component is nylon and the second component is a polyester (Sb-free CD, Sb-free cation dyeable) Wherein the first component is polypropylene (PP), the second component is antimony-free and water-soluble polyester (Sb-free WSD, Sb-free water-soluble semi-solid) (Sb-free SD, Sb-free semi-dull) and the second component is polylactic acid (PLA).

이때 상기 제2성분들은 모두 중금속 즉, 안티몬이 없는 폴리에스테르이며, 폴리락트산은 옥수수를 원료로 한 생분해성 수지로서, 상기 제1성분과 제2성분 모두 환경문제를 발생시키지 않는 것이다. In this case, the second components are all heavy metals, that is, polyesters free of antimony, and polylactic acid is a biodegradable resin made of corn as a raw material, and both the first component and the second component do not cause environmental problems.

상기 제1성분 및 제2성분은 제조되는 극세사 부직포의 사용분야에 따라 달리 선택되는 데, 오일 클리닝 페이퍼(Oil Cleaning paper)로의 사용 시에는 상기 제1성분은 폴리프로필렌이고 제2성분은 안티몬이 없고 물에 녹는 성질이 부여된 폴리에스테르인 것을 사용하며, 의약외품(마스크 등)나 방진복으로의 사용시에는 상기 제1성분은 안티몬이 없는 폴리에스테르이고 제2성분은 폴리락트산인 것을 사용함이 바람직하나 이를 반드시 제한하는 것은 아닌 것으로, 필요에 따라 제1성분과 제2성분을 탄력적으로 선택하도록 한다.The first component and the second component are selected depending on the field of use of the microfine nonwoven fabric to be produced. When the composition is used in an oil cleaning paper, the first component is polypropylene and the second component is antimony When used as a quasi-drug (mask or the like) or a garment, it is preferred that the first component is polyester without antimony and the second component is polylactic acid. The first component and the second component are selected flexibly as needed.

그리고 상기분할형 섬유를 이용하여 부직포를 제조하는 방법은 종래 일반적으로 알려진 부직포의 제조방법에 따르는 것으로, 제조된 단섬유를 카딩 및 워터펀칭하여 부직포로 제조하는 것이다. 상기 카딩이란 원료의 성형(부직포화)을 위한 준비 공정으로 원료 상태를 가지런히 정리해 주는 단계이며, 워터펀칭이란 고압의 물을 섬유 사이로 통과시켜 섬유가 서로 얽히게 함으로써 부직포로서 성형하는 단계이다. 상기 카딩과 워터펀칭은 부직포를 제조하는 분야에서 이미 공지된 사항이므로 그 상세한 설명은 생략한다. 또한 상기 워터펀칭이 아닌 니들펀칭 또는 스판레이스공정을 통해 제조될 수도 있는 것으로 그 방법을 제한하지 않는다.The method for producing a nonwoven fabric using the split fibers is based on a conventionally known method for producing a nonwoven fabric. The manufactured short fibers are manufactured by carding and water punching to form a nonwoven fabric. The carding is a step of uniformly arranging the raw material state in a preparation process for forming a raw material (nonwoven fabric), and water punching is a step of forming a nonwoven fabric by passing high-pressure water through the fibers to entangle the fibers. The carding and water punching are well known in the field of producing a nonwoven fabric, so that a detailed description thereof will be omitted. And the method may be manufactured through a needle punching or span racing process other than the water punching.

상기와 같이 부직포의 제조가 완료되면, 상기 제조된 부직포의 제2섬유를 수산화나트륨(NaOH)을 이용하여 용출, 용해시키고, 제1성분을 분할하여 극세사 부직포를 제조한다.After the production of the nonwoven fabric is finished, the second fiber of the nonwoven fabric is eluted and dissolved by using sodium hydroxide (NaOH), and the first component is divided to prepare a microfine nonwoven fabric.

상기 수산화나트륨을 이용한 용출, 용해방법으로는 저온용출법을 사용하는 것으로, 상기 저온용출법을 통해 후도 보지율이 증가하며 모우가 규칙적으로 발생하여 고감성의 제품을 생산할 수 있는 것이다. As the elution and dissolution method using sodium hydroxide, a low-temperature elution method is used. Through the low-temperature elution method, the retention rate is increased and the hair is regularly generated, so that a highly sensitive product can be produced.

상기 저온용출법에서 사용한 수산화나트륨의 농도는 2.5중량%으로, 98℃에서 약 16분간 감량하고, 수세 후 140℃, 30rpm에서 건조하고, 140℃, 30rpm으로 텐터하는 것이 바람직하다. 하기 표 1은 제1성분으로서 Sb-free SD를 사용하고, 제2성분으로서 Sb-free WSD를 사용하며, 3.5d(37도), 51mm의 극세사 부직포를 제조했을 때의 조건 및 신율, 폭 등을 나타낸 것이다. The concentration of sodium hydroxide used in the low-temperature elution is 2.5% by weight and is reduced at 98 캜 for about 16 minutes. After washing with water, it is preferably dried at 140 캜, 30 rpm and tentered at 140 캜 and 30 rpm. Table 1 below shows the conditions when Sb-free SD is used as the first component, Sb-free WSD is used as the second component, and conditions and elongation and width of the microfine nonwoven fabric of 3.5 d (37 degrees) Lt; / RTI >

저온용출법에 의한 제2성분의 용출조건.Elution conditions of the second component by the low temperature elution method. 품목subject Sb-free SD/Sb-free WSD 3.5d(37도) 51mmSb-free SD / Sb-free WSD 3.5d (37 degrees) 51mm 생지폭Grain width 185cm(감량후 132cm)185cm (132cm after weight loss) 처리시간Processing time 16min16 min 신율Elongation 2%2% 수세 후 폭Width after washing 122cm122cm 감량온도Weight loss temperature 98℃98 ℃ NaOH농도NaOH concentration 2.5%2.5% 건조조건Drying conditions 140℃, 30rpm140 ° C, 30 rpm 건조 후 폭Width after drying 124cm124cm 텐터조건Tenter condition 145℃, 25rpm145 ° C, 25 rpm

상기와 같이 저온용출법을 사용하는 이유는 고온용출법의 경우, 후도 보지율이 떨어질 뿐 아니라, 제품의 촉감이 떨어져 하드(hard)해지는 경향이 나타났으며 저장력 조건임에도 불구하고 부직포의 폭이 약 40%가량 축소되어 후 가공 시 폭을 넓혀야 하는 일이 발생되기 때문이다. As described above, the reason for using the low-temperature elution method is that, in the case of the high-temperature elution method, not only the retention rate is lowered but also the hardness of the product is lowered, It is necessary to expand the width of the post-processing by about 40%.

상기와 같이 수산화나트륨 용액의 처리가 완료되면 제2성분은 용출되게 되고, 제1성분은 8개로 분할되어 극세사로 변형되는 것이다.As described above, when the treatment of the sodium hydroxide solution is completed, the second component is eluted, and the first component is divided into eight and deformed to microfibers.

즉, 상기 Sb-free CD, Sb-free WSD, PLA가 각각 용출되고, 상기 나일론, 폴리프로필렌 및 Sb-free SD가 8개로 분할되어 극세사 부직포를 구성하는 것이다.That is, the Sb-free CD, the Sb-free WSD, and the PLA are eluted, and the nylon, polypropylene, and Sb-free SD are divided into eight to constitute the microfine nonwoven fabric.

이를 더욱 자세히 설명하면, 분할되기 전의 섬유 두께가 2.5데니어이고, 제1성분과 제2성분이 70:30 중량비로 혼합되었다면, 수산화나트륨을 이용하여 제2성분을 용출, 용해시키면(-30%) 약 1.75 데니아가 되고, 이는 다시 8개로 분할되어 있으므로 최종적으로는 각각 0.22데니어의 섬유가 8개 남게 되는 것이다. 또한 분할되기 전의 섬유의 두께가 2.0데니어이고, 제1성분과 제2성분이 80:20중량비로 혼합되었다면, 수산화나트륨을 이용하여 제2성분을 용출, 용해시키면(-20%), 약 1.6데니아가 되고, 이는 다시 8개로 분할되어 최종적으로 각각 0.2데니어의 섬유 8개가 남는 것이다.If the fiber thickness before division is 2.5 denier and the first component and the second component are mixed at a weight ratio of 70:30, if the second component is eluted and dissolved (-30%) by using sodium hydroxide, About 1.75 denier, which is again divided into eight, so that finally there will be eight fibers of 0.22 denier each. If the thickness of the fiber before splitting is 2.0 denier and the first component and the second component are mixed at 80: 20 weight ratio, if the second component is eluted and dissolved (-20%) using sodium hydroxide, , Which is again divided into 8 pieces, and finally, eight fibers of 0.2 denier each remain.

첨부된 도 1은 본 발명에 따라 제1섬유를 나일론으로 하고, 제2성분을 Sb-Free CD로 하여 2.5데니어의 두께와 38의 섬유장을 갖는 분할형 섬유를 제조하고 이를 이용하여 부직포를 제조한 후, 이를 수산화나트륨으로 제2성분인 Sb-Free CD를 용출하여 극세사 부직포를 제조하고, 그 섬유의 단면도를 촬영한 사진이다.FIG. 1 is a sectional view of a nonwoven fabric according to an embodiment of the present invention. FIG. 1 is a sectional view illustrating a method of manufacturing a nonwoven fabric according to an embodiment of the present invention. After that, this is a micrograph of a cross-sectional view of a microfine nonwoven fabric prepared by eluting the second component Sb-Free CD with sodium hydroxide.

도 1에서 확인할 수 있는 바와 같이, 8개의 제1성분으로 되는 극세사가 남게되고 제2성분은 용해, 용출됨을 확인할 수 있다.As can be seen from Fig. 1, it can be seen that the microfibers consisting of the eight first components remain and the second component dissolves and elutes.

상기와 같은 제조방법으로 제조되는 극세사 부직포는 강도가 우수함은 물론, 필터로의 사용시 미세 먼지까지 집진이 가능하게 되는 것으로, 의약외품, 부직포 커퍼, 와이퍼, 오일 클리닝 페이퍼, 산업용 필터, 방진복 등 다양한 분양에의 사용이 가능하게 된다.The microfine nonwoven fabric produced by the above-described production method is excellent in strength and is capable of collecting fine dust even when it is used as a filter. It can be used for a wide variety of products such as quasi-drugs, nonwoven clothers, wipers, oil cleaning papers, industrial filters, Can be used.

또한 극세사 부직포를 폴리우레탄에 함침하여 인공피혁으로서 사용할 수도 있음은 당연한 것으로, 그 사용 분야를 제한하지 않는다.It is a matter of course that the microfiber nonwoven fabric may be impregnated with polyurethane to be used as artificial leather, and its use field is not limited.

이상에서와 같이 본 발명은 상기한 실시예에 따라 설명하였지만, 본 발명의 범주와 사상을 벗어나지 않는 범위 내에서 다양한 변형 실시가 가능함은 물론이다.While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary,

Claims (6)

제1성분과 제2성분으로 구성되는 분할형 섬유를 사용하여 카딩 및 워터펀칭 공정을 거쳐 부직포를 제조하는 단계;와,
수산화나트륨 수용액을 이용한 저온 용출법으로 상기 제조된 부직포를 감량하여 상기 제2성분을 용출, 용해시킴으로써 상기 제1성분을 분할하여 극세사 단섬유를 제조하는 단계; 및
수세 후 140℃, 30rpm에서 건조 또는 텐터하는 단계;를 포함하며,
상기 제1성분 및 제2성분의 조합은, 폴리프로필렌 및 안티몬이 없고 물에 녹는 성질이 부여된 폴리에스테르의 조합 또는 안티몬이 없는 폴리에스테르 및 폴리락트산(PLA)의 조합인 것을 특징으로 하는 분할형 섬유 부직포를 이용한 극세사 부직포의 제조방법.Preparing a nonwoven fabric by carding and water punching using splittable fibers comprising a first component and a second component;
Dissolving the second component by dissolving the nonwoven fabric by a low temperature elution method using an aqueous solution of sodium hydroxide to divide the first component to prepare a microfine fiber; And
Drying or tentering at 140 캜 and 30 rpm after the water washing,
Wherein the combination of the first component and the second component is a combination of polypropylene and a combination of polyesters free of antimony and imparted with water-soluble properties, or a polyester and polylactic acid (PLA) free of antimony. A method for manufacturing a microfiber nonwoven fabric using a fibrous nonwoven fabric. 삭제delete 제1항에 있어서,
상기 제1성분 및 제2성분은 85:15~60:40 중량비인 것을 특징으로 하는 분할형 섬유 부직포를 이용한 극세사 부직포의 제조방법.The method according to claim 1,
Wherein the first component and the second component are in a weight ratio of 85:15 to 60:40 by weight based on the total weight of the nonwoven fabric. 제1항 또는 제3항에 있어서,
상기 제1성분은 8개로 분할되는 것을 특징으로 하는 분할형 섬유 부직포를 이용한 극세사 부직포의 제조방법.The method according to claim 1 or 3,
Wherein the first component is divided into eight parts. The method of manufacturing a microfine nonwoven fabric according to claim 1, wherein the first component is divided into eight parts. 제1항 또는 제3항에 있어서,
상기 분할형 섬유의 두께는 1.5~4.0데니어인 것을 특징으로 하는 분할형 섬유 부직포를 이용한 극세사 부직포의 제조방법.The method according to claim 1 or 3,
Wherein the thickness of the split fibers is 1.5 to 4.0 denier. 제1항 또는 제3항의 제조방법으로 제조된 극세사 부직포로 이루어지는 것을 특징으로 하는 의약외품, 부직포 커버, 와이퍼, 오일 클리닝 페이퍼 또는 산업용 필터. A quasi-drug product, a nonwoven fabric cover, a wiper, an oil cleaning paper or an industrial filter, characterized by comprising a microfine nonwoven fabric manufactured by the manufacturing method of any one of claims 1 to 3.
KR1020120059001A 2012-06-01 2012-06-01 Method of producing nonwoven fabric with micro fiber and product thereby produced KR101395593B1 (en)

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004300651A (en) 2003-03-19 2004-10-28 Toray Ind Inc Polyester-based conjugated fiber and ultrafine fiber using the same
KR20100016424A (en) * 2007-04-18 2010-02-12 케이비 세렌 가부시키가이샤 Dividual conjugate fiber and, produced therefrom, fiber structure and wiping cloth

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004300651A (en) 2003-03-19 2004-10-28 Toray Ind Inc Polyester-based conjugated fiber and ultrafine fiber using the same
KR20100016424A (en) * 2007-04-18 2010-02-12 케이비 세렌 가부시키가이샤 Dividual conjugate fiber and, produced therefrom, fiber structure and wiping cloth

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