KR20120119039A - Polypropylene non-woven fabric having an excellent adhesive property and and manufacturing method thereof - Google Patents
Polypropylene non-woven fabric having an excellent adhesive property and and manufacturing method thereof Download PDFInfo
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- KR20120119039A KR20120119039A KR1020110036763A KR20110036763A KR20120119039A KR 20120119039 A KR20120119039 A KR 20120119039A KR 1020110036763 A KR1020110036763 A KR 1020110036763A KR 20110036763 A KR20110036763 A KR 20110036763A KR 20120119039 A KR20120119039 A KR 20120119039A
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- 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
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- 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
- A61F13/15699—Forming webs by bringing together several webs, e.g. by laminating or folding several webs, with or without additional treatment of the webs
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/08—Melt spinning methods
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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
- D04H13/00—Other non-woven fabrics
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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
- D04H3/007—Addition polymers
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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
- D04H3/08—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
- D04H3/147—Composite yarns or filaments
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
- D06M13/244—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing sulfur or phosphorus
- D06M13/248—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing sulfur or phosphorus with compounds containing sulfur
- D06M13/256—Sulfonated compounds esters thereof, e.g. sultones
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- 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
- D10B2321/00—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D10B2321/02—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polyolefins
- D10B2321/022—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polyolefins polypropylene
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- 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
- D10B2401/00—Physical properties
- D10B2401/02—Moisture-responsive characteristics
- D10B2401/022—Moisture-responsive characteristics hydrophylic
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- 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)
- Health & Medical Sciences (AREA)
- Textile Engineering (AREA)
- Vascular Medicine (AREA)
- Manufacturing & Machinery (AREA)
- Epidemiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Mechanical Engineering (AREA)
- Absorbent Articles And Supports Therefor (AREA)
- Nonwoven Fabrics (AREA)
Abstract
Description
본 발명은 접착성이 우수한 장섬유 폴리프로필렌 부직포 및 이의 제조방법에 관한 것으로, 보다 자세하게는 비이온성 친수 계면활성제를 이용한 장섬유 폴리프로필렌 스펀본드 친수부직포로서, 친수성이면서 기저귀의 이어파트에 대한 우수한 접착성을 가져 성인용 및 유아용 기저귀의 톱 시트에 효과적으로 이용될 수 있으며, 기타 친수성을 요구하는 생활자재나 농업용도에 두루 이용될 수 있는 접착성이 우수한 장섬유 폴리프로필렌 부직포 및 이의 제조방법에 대한 것이다.
The present invention relates to a long-fiber polypropylene nonwoven fabric having excellent adhesion and a method for manufacturing the same, and more particularly, to a long-fiber polypropylene spunbond hydrophilic nonwoven fabric using a nonionic hydrophilic surfactant, which is hydrophilic and has excellent adhesion to an ear part of a diaper. The present invention relates to a long-fiber polypropylene nonwoven fabric having excellent adhesive property, which can be effectively used for top sheets of adult and infant diapers, and can be used for living materials and agricultural applications requiring other hydrophilic properties, and a method of manufacturing the same.
일반적으로 부직포는 방직용 섬유를 일정한 방향으로 가지런히 놓거나 또는 아무렇게나 배열하고 접착시킨 쉬트 또는 웹으로, 이들 섬유의 원료는 천연의 것이거나 인조의 것이다. 이들 섬유는 스테이플 섬유(천연 또는 인조) 또는 인조필라멘트로 되어있으며, 이러한 부직포의 제조공정 및 방법은 다양하게 공지되어 있는데, 크게는 이들 제조과정은 웹 형성, 접착 및 완성가공으로 크게 나눌 수 있다. In general, nonwoven fabrics are sheets or webs in which fibers for textiles are arranged in a uniform direction or arranged and bonded freely. The raw materials of these fibers are natural or artificial. These fibers are made of staple fibers (natural or artificial) or artificial filaments, and the manufacturing processes and methods of such nonwoven fabrics are variously known, and these manufacturing processes can be broadly divided into web formation, adhesion, and finishing.
특히, 이러한 부직포 중 폴리프로필렌 스판본드 부직포는 경제성, 경량성, 성형성, 내약품성, 아름다운 외관 등의 우수한 특성을 가지고 있으며, 이로 인하여 위생자재, 가전제품, OA 기기 포장재료, 자동차 내장재료, 일회용 작업복 등 잡화에 널리 이용되고 있다. 특히, 기저귀와 같은 위생용품으로 광범위하게 사용되고 있는데, 일반적으로 폴리프로필렌 섬유는 강한 소수성이기 때문에 이로 인하여 기저귀와 같은 위생용품으로서 적용용도가 매우 제한적이라는 약간의 단점을 안고 있다. In particular, among these nonwoven fabrics, polypropylene spanbonded nonwoven fabric has excellent characteristics such as economical efficiency, light weight, moldability, chemical resistance, and beautiful appearance, and as a result, hygienic materials, home appliances, OA device packaging materials, automotive interior materials, disposables It is widely used in miscellaneous goods such as work clothes. In particular, it is widely used as a sanitary article such as a diaper, and in general, polypropylene fiber has a slight disadvantage that its use is very limited as a sanitary article such as a diaper because of its strong hydrophobicity.
따라서 소수성의 폴리프로필렌섬유에 친수성을 부여하려는 시도가 많이 검토되어 왔으며, 특히 부직포의 물 흡수능력을 극대화시키기 위한 기술도 많이 제안된 바 있는데, 예를 들어 관련된 선행기술로 대한민국 등록특허 10-0656680호는 흡습성이 양호한 매트 및 그 제조방법에 관한 것으로, 매트(A)의 제조방법에 있어서, 폴리에스터로 되는 0.1?1.0데니어의 극세사를 이용하여 150?3,000d의 멀티필라멘트 사로 합사하여 편면 파일편물(10)을 편성하는 단계; 파일편물(10) 이면(파일이 없는 면)에 30?500g/㎡의 부직포 또는 두께가 1?5㎜인 고탄력 스폰지(12)를 접착하여 매트기재를 제조하는 단계; 제조된 매트기재(基材)의 부직포 또는 스폰지(12)층 뒷면에 라텍스를 코팅(13)하고 엠보싱하는 단계; 및 엠보싱된 매트기재를 재단하고 오버록킹하는 마무리 가공 단계를 포함하는 방법을 개시하고 있다. 하지만 상기 방법을 포함한 친수성 부여 방법은 그 효과가 미미하거나 폴리프로필렌과의 상용성 문제로 방사 또는 연신 공정에서의 문제점 및 물리적 성질이 저하되는 경우가 많았다. Therefore, there have been many attempts to impart hydrophilicity to hydrophobic polypropylene fibers, and in particular, many techniques for maximizing the water absorption capability of nonwoven fabrics have been proposed, for example, as related related arts. Relates to a mat having good hygroscopicity and a method of manufacturing the same. In the manufacturing method of the mat (A), a single-sided pile knitted with 150 to 3,000 d of multifilament yarn using 0.1 to 1.0 denier microfiber made of polyester 10) organizing; Manufacturing a mat base by adhering a nonwoven fabric having a thickness of 30 to 500 g / m 2 or a high elastic sponge 12 having a thickness of 1 to 5 mm to the back surface of the pile knitted fabric 10; Coating and then embossing the latex on the back of the manufactured non-woven fabric or sponge 12 layer of the base material; And a finishing step of cutting and overlocking the embossed mat substrate. However, the method of imparting hydrophilicity including the above method was often inferior in the effect or compatibility problem with polypropylene, and the problems and physical properties in the spinning or stretching process were often lowered.
또한, 상기한 바와 같이 종래의 일반적인 방법에 따라 친수성이 부여된 폴리프로필렌 부직포는 기저귀의 이어파트와의 접착성이 현격하게 저하하는 문제점이 있었다. 이와 같이 기저귀의 이어파트와 기저귀 톱시트 부위를 부착하여 고정시켜 줄 때 테이프를 사용하게 되는데, 이 때 부착성이 낮을 경우 부착력을 높여주기 위하여 접착성 고분자의 양을 증가시켜 주어야 함에 따라 제조비용의 부담이 증가하게 된다.
In addition, as described above, the polypropylene nonwoven fabric provided with hydrophilicity according to a conventional general method has a problem in that adhesiveness with the ear parts of the diaper is remarkably decreased. As such, the tape is used to attach and fix the ear parts of the diaper and the diaper topsheet. If the adhesion is low, the amount of the adhesive polymer should be increased to increase the adhesion strength. The burden will increase.
따라서, 본 발명자 등은 폴리프로필렌 부직포 원하는 정도의 친수성을 부여하면서 종래의 친수 계면활성제를 도포하여 생산된 장섬유 폴리프로필렌 부직포가 테이프와의 접착성이 낮아 공정이나 제품 품질 면에서 저하를 야기할 수 있다는 문제점을 해결하기 위하여 예의 연구한 결과, 비이온성 계면활성제를 사용함으로 친수제로 인한 테이프와의 탈착력, 즉 접착강도를 향상할 수 있음을 밝혀내어 본 발명을 완성하게 되었다.
Accordingly, the inventors of the present invention have shown that a long-fiber polypropylene nonwoven fabric produced by applying a conventional hydrophilic surfactant while giving a desired degree of hydrophilicity to a polypropylene nonwoven fabric has low adhesiveness with a tape and may cause a decrease in process or product quality. As a result of intensive studies to solve the problem, it has been found that the use of a nonionic surfactant can improve the desorption force of the tape due to the hydrophilic agent, that is, the adhesive strength, thereby completing the present invention.
따라서, 본 발명은 상기한 종래의 기술 실정을 감안하여 된 것으로서 본 발명의 주요 목적은 일정한 수준 이상의 친수성을 가지면서 테이프와의 접착성이 우수하여 위생자재로 효율적으로 사용할 수 있는 장섬유 폴리프로필렌 부직포를 제공하기 위한 것이다.Accordingly, the present invention has been made in view of the above-described conventional technical situation, and a main object of the present invention is a long-fiber polypropylene nonwoven fabric having a hydrophilic property of a certain level or more and excellent adhesiveness with a tape, which can be efficiently used as a hygienic material. It is to provide.
본 발명의 다른 목적은 상기한 특성을 갖는 장섬유 폴리프로필렌 부직포를 우수한 작업성으로 보다 용이하게 제조할 수 있는 방법을 제공하기 위한 것이다.Another object of the present invention is to provide a method for producing a long-fiber polypropylene nonwoven fabric having the above-mentioned characteristics more easily with excellent workability.
본 발명은 또한 상기한 명확한 목적 이외에 이러한 목적 및 본 명세서의 전반적인 기술로부터 이 분야의 통상인에 의해 용이하게 도출될 수 있는 다른 목적을 달성함을 그 목적으로 할 수 있다.
The present invention may also be aimed at achieving, in addition to the above-mentioned specific objects, other objects which can be easily derived by those skilled in the art from this and the overall description of the present specification.
상기한 본 발명의 목적은 종래의 통상적인 방법으로 제작된 친수 폴리프로필렌 부직포는 위생용의 톱시트와 이어파트 부분의 접착테이프와의 결합공정이 존재하는 경우, 친수 계면활성제로 인하여 상호 간의 접착성이 저하되는 문제점을 단순히 접착성 보강을 위한 접착성 고분자의 양을 증가시키는 방법은 제품의 제조비용 상승이라는 다른 문제점이 있어, 상기 접착성이 저하되지 않도록 하면서 친수성을 유지하는 방법으로 특정의 비이온성 계면활성제의 적용과 함께 최적의 조건 정립을 통하여 달성할 수 있음을 밝혀냈다.
The above object of the present invention is that the hydrophilic polypropylene nonwoven fabric produced by a conventional method is adhesiveness between each other due to the hydrophilic surfactant when there is a bonding process between the hygienic topsheet and the adhesive tape of the ear parts. The method of simply increasing the amount of the adhesive polymer for reinforcing adhesiveness has another problem such as an increase in the manufacturing cost of the product. It has been found that this can be achieved through formulation of optimum conditions with the application of surfactants.
상기 목적을 달성하기 위한 본 발명의 접착성이 우수한 장섬유 폴리프로필렌 부직포는;Long fiber polypropylene nonwoven fabric having excellent adhesion of the present invention for achieving the above object;
장섬유 폴리프로필렌 스펀본드 부직포에 있어서, 용융방사 및 열압착 공정을 거친 장섬유 폴리프로필렌 스펀본드 부직포의 표면에 비이온성 친수 계면활성제를 도포하여 얻은 것임을 특징으로 한다.A long fiber polypropylene spunbond nonwoven fabric, characterized in that obtained by applying a nonionic hydrophilic surfactant to the surface of a long fiber polypropylene spunbond nonwoven fabric that has undergone melt spinning and thermocompression bonding.
본 발명의 다른 구성에 따르면, 상기 폴리프로필렌은 호모폴리프로필렌으로서 용융지수가 20 내지 40g/10min이고, 아이소택틱 지수가 90%이상이며, 용융점이 160 내지 165℃인 것을 특징으로 한다.According to another configuration of the present invention, the polypropylene is a homopolypropylene and has a melt index of 20 to 40 g / 10 min, an isotactic index of 90% or more, and a melting point of 160 to 165 ° C.
본 발명의 또 다른 구성에 따르면, 상기 비이온성 친수 계면활성제는 하기 구조식 1의 설폰석시네이트(Sulfosuccinate)계로 이루어진 것임을 특징으로 한다:According to another configuration of the present invention, the nonionic hydrophilic surfactant is characterized in that consisting of sulfosuccinate system of the following structural formula (1):
<구조식 1><Structure 1>
본 발명의 또 다른 구성에 따르면, 상기 친수 계면활성제는 부직포 총중량에 대하여 0.4 내지 2.0 중량% 함유된 것으로 더욱 바람직하게는 0.7~1.5 중량% 함유한 친수부직포임을 특징으로 한다. According to another configuration of the present invention, the hydrophilic surfactant is characterized in that the hydrophilic nonwoven fabric containing 0.4 to 2.0% by weight relative to the total weight of the nonwoven fabric, more preferably 0.7 to 1.5% by weight.
본 발명의 또 다른 구성에 따르면, 상기 부직포는 기저귀에 부착된 테이프와의 접착강도가 0.5kg/2.4cm를 넘는 것임을 특징으로 한다.
According to another configuration of the present invention, the nonwoven fabric is characterized in that the adhesive strength with the tape attached to the diaper is more than 0.5kg / 2.4cm.
상기와 같이 구성되는 본 발명의 접착성이 우수한 장섬유 폴리프로필렌 부직포 및 그 제조방법은 친수성을 부여하는 방법으로 특정의 비이온성 계면활성제를 적용하여 일정 수준 이상의 친수성을 부여하면서 테이프와의 접착성을 우수하게 하여, 종래의 친수 계면활성제를 도포하여 생산된 장섬유 폴리프로필렌 부직포의 테이프와의 접착성이 낮아 공정이나 제품 품질 면에서 저하를 야기할 수 있었던 문제점을 완전히 해결하였으며, 또한 이러한 우수한 접착력을 가지는 친수 부직포를 용이하게 제조할 수 있는 방법을 제공하여 최종제품의 품질저하를 예방할 수 있을 뿐만 아니라 최종제품의 제조비용 줄여줄 수 있게 하였다.
The long-fiber polypropylene nonwoven fabric having excellent adhesiveness of the present invention configured as described above and a method of manufacturing the same are applied to a specific nonionic surfactant in a manner of imparting hydrophilicity to impart a certain level of hydrophilicity or higher to the adhesiveness with the tape. In this case, the long fiber polypropylene nonwoven fabric produced by applying the conventional hydrophilic surfactant has low adhesiveness to the tape, thereby completely solving the problem that may cause a decrease in process or product quality. The eggplant provides a method for easily manufacturing hydrophilic nonwoven fabrics, which not only prevents the deterioration of the final product but also reduces the manufacturing cost of the final product.
도 1은 본 발명의 바람직한 실시형태에 따른 폴리프로필렌 부직포의 친수 가공의 개략적인 공정도이다. 1 is a schematic process diagram of hydrophilic processing of a polypropylene nonwoven fabric according to a preferred embodiment of the present invention.
이하, 본 발명을 첨부도면을 참고로 바람직한 실시형태에 의해 보다 자세하게 설명한다.
Hereinafter, with reference to the accompanying drawings, the present invention will be described in more detail by preferred embodiments.
본 발명에서 전반적으로 사용된 용어 "이어파트"라 함은 성인용 혹은 유아용 기저귀에 있어서 인체에 착용을 위하여 제품 양측에 날개형태로 구성되어 접착 테이프와의 결합된 부분을 의미한다.As used throughout the present invention, the term “ear part” refers to a portion of the diaper for adults or infants, which is composed of wings on both sides of a product for wearing on a human body, and is combined with an adhesive tape.
또한, 본 발명에서 전반적으로 사용된 용어 "계면 활성제"라 함은 소수성의 부직포를 친수성을 갖도록 표면에 특정 고분자를 도포하게 되는데, 이때 도포되는 특정 물질을 의미한다.In addition, the term "surfactant" as used throughout the present invention is to apply a specific polymer to the surface of the hydrophobic nonwoven fabric to have a hydrophilic, it means a specific material to be applied.
본 발명에서 전반적으로 사용된 용어 "톱시트"라 함은 성인용 혹은 유아용 기저귀의 구조적 최상층으로서, 계면활성제가 도포되어 노폐물을 투과시키는 역할을 하는 부직포 층을 의미한다.The term "topsheet" as used throughout the present invention refers to a nonwoven layer that serves as a structural top layer of an adult or infant diaper, to which a surfactant is applied to permeate waste.
본 발명에서 전반적으로 사용된 용어 "부직포"라 함은 개별 섬유 또는 실이 불규칙한 방식으로 배치되어 일정한 패턴이 없는 평면 재료를 형성한 구조물을 의미한다.The term "nonwoven" as used throughout the present invention refers to a structure in which individual fibers or yarns are arranged in an irregular manner to form a planar material without a uniform pattern.
본 발명에서 전반적으로 사용된 용어 "스펀본드"라 함은 압출기에서 방사된 필라멘트를 연신시킨 후, 컨베이어에 적층시키고, 적층된 웹을 칼렌더 롤 등으로 결합하여 제작하는 방식을 의미한다.
The term "spunbond" as used throughout the present invention refers to a method in which the filament spun in the extruder is stretched, then laminated on a conveyor, and the laminated web is combined with a calender roll or the like.
본 발명의 바람직한 실시형태에 따르면, 본 발명의 부직포는 장섬유 폴리프로필렌을 이용한 기본적인 스펀본드 공정과 함께 친수성을 부여하도록 친수 계면활성제의 표면도포를 위하여 추가적인 친수 가공 공정을 거치게 된다. 친수 가공 공법에는 부직포에 친수 계면활성제를 강제 도포시키는 컨택트 롤 방식, 물과 혼합된 친수계면활성제 에멀젼에 부직포를 침지하여 도포시키는 디핑(dipping) 방식, 에멀젼을 강제 분산시켜 부직포 표면에 흩어뿌림으로서 도포시키는 스프레이(spray) 방식 등을 이용하게 된다. According to a preferred embodiment of the present invention, the nonwoven fabric of the present invention undergoes an additional hydrophilic processing step for the surface coating of the hydrophilic surfactant to impart hydrophilicity with the basic spunbond process using long fiber polypropylene. In the hydrophilic processing method, a contact roll method for forcibly applying a hydrophilic surfactant to a nonwoven fabric, a dipping method for immersing and applying a nonwoven fabric in a hydrophilic surfactant emulsion mixed with water, and forcing the emulsion to be dispersed and scattered on the surface of the nonwoven fabric are applied. The spray (spray) method, etc. are used.
본 발명에 따라 도포되는 상기 친수 계면활성제는 설포석시네이트계의 비이온성을 띠고 있는 것이다. 이 성분의 특성상 점착제와의 부착성이 다른 실리콘계의 친수 계면활성제 성분에 비하여 특히 우수하게 나타나므로, 위생용의 톱시트와 이어파트 부분의 접착테이프와의 결합공정이 존재하는 경우 친수 계면활성제로 인하여 상호 간의 접착성이 저하 현상을 최소화할 수 있을 뿐만 아니라, 테이프 접착성 고분자의 사용량을 줄일 수 있기 때문에 최종제품의 원가에도 긍정적인 영향을 미칠 수 있게 한다.The hydrophilic surfactant to be applied in accordance with the present invention is a sulfonic succinate-based nonionic. Due to the nature of this component, the adhesion with the pressure-sensitive adhesive is particularly superior to other silicone-based hydrophilic surfactant components. Therefore, when there is a bonding process between the hygienic topsheet and the adhesive tape of the ear part, due to the hydrophilic surfactant Not only can the adhesiveness of each other be minimized, but also the amount of tape adhesive polymer used can be reduced, which can have a positive effect on the cost of the final product.
특히, 본 발명의 바람직한 실시형태에 따르면, 상기 친수 계면활성제는 부직포 총중량에 대하여 0.4 내지 2.0 중량% 함유되도록 하는 것이 중요하며, 더욱 바람직하게는 0.7 내지 1.5 중량% 함유비가 되도록 도포되어야 한다. 이는 흡수도와 침강법 및 접착강도의 물성 수준을 모두 만족할 수 있는 전제사항이다. 흡수도는 3.5초 이하를 유지하여야 하고, 침강법은 3초 이하의 수준을 유지하여야 하며, 접착강도는 0.5kg/2.4cm 이상을 유지해야 한다. 만일, 0.3 중량% 이하로 함유되면 흡수도 3.5초 이하, 침강법 3초 이하의 친수성을 얻을 수 없고 2.0 중량%를 넘어서면 친수성의 향상효과는 더 크게 되지 않으면서 접착강도가 저하될 수 있어 바람직하지 않다.
In particular, according to a preferred embodiment of the present invention, it is important that the hydrophilic surfactant is contained 0.4 to 2.0% by weight relative to the total weight of the nonwoven fabric, and more preferably 0.7 to 1.5% by weight should be applied. This is a prerequisite to satisfy the physical properties of both absorbance, sedimentation method and adhesive strength. Absorption should be kept below 3.5 seconds, sedimentation method should be kept below 3 seconds, and adhesive strength should be kept above 0.5kg / 2.4cm. If the content is less than 0.3% by weight, the hydrophilicity of absorption of 3.5 seconds or less and sedimentation method of 3 seconds or less cannot be obtained. If the content is more than 2.0% by weight, the adhesive strength may be lowered without increasing the hydrophilicity. Not.
이하, 실시예 및 비교예에 의하여 본 발명을 보다 자세하게 설명한다. 이하의 각 예에서는 친수 스펀본드 부직포 18g/㎡ 제품에 대하여 실시하였으며, 친수성능 및 접착성능에 대한 최적화 조건을 확인하였다. 다음의 실시예는 본 발명을 상세하게 설명하기 위한 것으로, 본 발명의 범위를 제한하는 것이 아님은 물론이다.
Hereinafter, an Example and a comparative example demonstrate this invention in detail. In each of the following examples, a hydrophilic spunbonded nonwoven fabric 18 g / m 2 The product was carried out and the optimization conditions for the hydrophilic performance and the adhesive performance were confirmed. The following examples are intended to illustrate the present invention in detail, of course, but not to limit the scope of the invention.
실시예 Example
먼저, 10 내지 30㎛의 폴리프로필렌 장섬유를 방사하여 칼렌더링 열접착이 일부 이루어진 부직포를 형성하고, 이후 컨택트 롤을 이용하여 친수 계면활성제를 부직포와 강제 접촉시켜 부직포 표면에 도포하여 제조하였다.First, 10 to 30 μm of polypropylene long fibers were spun to form a nonwoven fabric with partial calendering heat bonding, and then a contact roll was used to apply a hydrophilic surfactant to the nonwoven fabric to apply it to the surface of the nonwoven fabric.
여기서, 상기 폴리프로필렌 장섬유는 적층된 2층 구조를 이루는 밀도는 18 g/㎡의 부직포 적층체로 하였다.In this case, the polypropylene long fiber was a nonwoven fabric laminate having a density of 18 g / m 2 in a laminated two-layer structure.
상기의 공정을 거쳐 제작된 장섬유 폴리프로필렌 친수 스펀본드 부직포에 이용된 친수 계면활성제의 종류는 설포석시네이트계의 비이온성 계면활성제를 이용하였으며, 부직포 전체 중량 대비 1.0% 수준으로 함유하도록 제작하였다.
The hydrophilic surfactant used in the long-fiber polypropylene hydrophilic spunbond nonwoven fabric produced through the above process was made of sulfosuccinate-based nonionic surfactant, and was prepared to contain 1.0% of the total weight of the nonwoven fabric. .
비교예 1Comparative Example 1
설포석시네이트계 비이온성 계면활성제를 이용하고, 부직포 전체 중량 대비 0.2% 수준으로 함유하도록 제작하였으며, 이외에는 상기 실시예 1과 동일하다.
The sulfo succinate-based nonionic surfactant was used, and was prepared to contain 0.2% of the total weight of the nonwoven fabric, except that it was the same as in Example 1.
비교예 2Comparative Example 2
실리콘계의 양이온성 친수 계면활성제를 이용하고, 부직포 전체 중량 대비 함유비를 0.2% 수준으로 제작하였으며, 이외에는 상기 실시예 1과 동일하다.
A silicon-based cationic hydrophilic surfactant was used, and the content ratio of the nonwoven fabric to the total weight of the nonwoven fabric was prepared at a level of 0.2%, except that the same as in Example 1.
비교예 3Comparative Example 3
실리콘계의 양이온성 친수 계면활성제를 이용하고, 부직포 전체 중량 대비 함유비를 1.0% 수준으로 제작하였으며, 이외에는 상기 실시예 1과 동일하다.
A silicon-based cationic hydrophilic surfactant was used to prepare a content ratio of 1.0% based on the total weight of the nonwoven fabric, except that it was the same as in Example 1.
실험예Experimental Example
상기와 같이 실시예 및 비교예에 의하여 제작된 장섬유 폴리프로필렌 친수 스펀본드 부직포를 대상으로 다음과 같이 물성 테스트를 실시하였다.The physical properties of the long-fiber polypropylene hydrophilic spunbond nonwoven fabric prepared according to Examples and Comparative Examples as described above were tested as follows.
1. 흡수도(스트라이크 스루, Strike through): 실시예 및 비교예에 의하여 제조된 장섬유 폴리프로필렌 친수 스펀본드 부직포로부터 시료를 채취하고, 알맞은 크기로 절단하여 시료의 흡수도를 측정하였다. 시료의 크기는 면적 100㎠의 원형이며, 시료마다 10회씩 평균값을 비교하였다. 구체적인 측정방법은 WSP 70.3 을 참고하였고, 진행방법은 다음과 같다.1. Absorbance (Strike through): A sample was taken from a long-fiber polypropylene hydrophilic spunbond nonwoven fabric prepared according to Examples and Comparative Examples, cut into appropriate sizes, and the absorbance of the sample was measured. The size of the sample was circular with an area of 100 cm 2, and the average value was compared 10 times for each sample. For specific measuring method, refer to WSP 70.3 and proceed as follows.
1) 흡수지 10장을 준비한다.1) Prepare 10 blotter paper.
2) 부직포 시료를 준비하여 흡수지 위에 놓는다.2) Prepare a nonwoven fabric sample and place it on the absorbent paper.
3) 흡수지+시료를 플레이트(Plate) 밑에 놓고 리스터(Lister)기에 설치한다.3) Place the absorbent paper + sample under the plate and install it in the Lister.
4) 0.9% NaCl용액 5mL를 리스터에 넣는다.4) Add 5 mL of 0.9% NaCl solution to the Lister.
5) 리스터기를 시작한다.5) Start Lister.
6) LCD 창에 나타난 흡수도(SEC)를 읽는다.
6) Read the absorbance (SEC) displayed on the LCD.
2. 침강법: 실시예 및 비교예에 의하여 제조된 장섬유 폴리프로필렌 친수 스펀본드 부직포로부터 시료를 채취하고, A4(210*297mm)크기로 절단하여 상온(20℃)의 물에 띄운다. 부직포가 물에 젖기 시작한 후, 완전하게 침지될 때, 즉 부직포의 어떠한 부분도 빠짐없이 전체 면적에 모두 물이 스며들 때까지의 시간을 측정한다. 각 시료마다 10회씩 측정하여 평균값을 비교하였다.
2. Sedimentation method: A sample is taken from the long-fiber polypropylene hydrophilic spunbond nonwoven fabric prepared in Examples and Comparative Examples, cut into A4 (210 * 297mm) size and floated in water at room temperature (20 ° C). After the nonwoven begins to soak in water, it is measured when it is completely immersed, that is, until all of the water soaks into the entire area without any part of the nonwoven being omitted. Each sample was measured 10 times and the average value was compared.
3. 접착강도: 실시예 및 비교예에 의하여 제조된 장섬유 폴리프로필렌 친수 스펀본드 부직포로부터 시료를 채취하고, 알맞은 크기로 절단하여 시료의 접착강도를 측정하였다. 부직포 시료의 크기는 40mm*100mm 의 직사각형이고, 접착테이프의 크기는 24mm*30mm로 진행하였다. 부직포와 접착테이프를 부착시킨 후, 2.5kg의 롤러를 이용하여 왕복 2회 문질러 상호 접착시킨다. 접착된 시료들을 인스트롱 기를 이용하여 한쪽에는 부직포를 고정시키고, 다른 한쪽에는 접착테이프를 고정시켜 장력을 측정한다. 각 시료마다 10회씩 측정하여 평균값을 비교하였다.
3. Adhesive strength: Samples were taken from the long fiber polypropylene hydrophilic spunbond nonwoven fabrics prepared according to Examples and Comparative Examples, cut into appropriate sizes, and the adhesive strength of the samples was measured. The size of the nonwoven fabric sample was a rectangle of 40mm * 100mm, and the size of the adhesive tape was 24mm * 30mm. After adhering the nonwoven fabric and the adhesive tape, they are rubbed together by reciprocating twice using a 2.5 kg roller. Bonded samples were measured using an instron machine to fix the nonwoven fabric on one side and the adhesive tape on the other side to measure the tension. Each sample was measured 10 times and the average value was compared.
상기와 같이 실시한 장섬유 폴리프로필렌 친수 스펀본드 부직포의 물성 테스트 결과를 다음의 표 1에 나타내었다.The physical property test results of the long-fiber polypropylene hydrophilic spunbond nonwoven fabric carried out as described above are shown in Table 1 below.
표 1를 참조하면, 본 발명에 따른 실시예의 부직포는 흡수도 및 침강법의 관리기준(흡수도-3.5초, 침강법-3초)에는 안정적으로 품질이 양호하며, 접착강도 또한 타 성분의 친수계면활성제를 사용할 때보다 최소 40% 이상의 성능향상을 나타내고 있음을 확인할 수 있다.Referring to Table 1, the nonwoven fabric of the embodiment according to the present invention is stably good in the absorbency and management standards of the sedimentation method (absorption rate -3.5 seconds, sedimentation method-3 seconds), the adhesive strength is also hydrophilic of other components It can be seen that the performance improvement is at least 40% higher than when using the surfactant.
한편, 비교예 1은 접착강도의 경우 실시예와 비교하여 동등수준이거나 조금 향상된 수준을 보이고 있으나, 침강법의 품질관리에 만족스럽지 못한 수준으로 나타났다. 또한, 비교예 2 및 비교예 3의 경우는 실시예에 비해 접착테이프와의 접착강도가 40~50% 이상 저하됨을 확인하였다. 이는 친수 성분이 다른 실리콘계의 특성으로 나타나는 현상임을 알 수 있다.
On the other hand, Comparative Example 1 shows the same or slightly improved level of the adhesive strength compared to the Example, but the level of quality control of the sedimentation method was not satisfactory. In addition, in the case of Comparative Example 2 and Comparative Example 3 it was confirmed that the adhesive strength with the adhesive tape is reduced by 40-50% or more compared with the Example. It can be seen that the hydrophilic component is a phenomenon appearing in other silicon-based properties.
Claims (5)
A long-fiber polypropylene spunbond nonwoven fabric, which is obtained by applying a nonionic hydrophilic surfactant to the surface of a long-fiber polypropylene spunbond nonwoven fabric that has undergone melt spinning and thermocompression bonding. .
The method of claim 1, wherein the polypropylene is a homopolypropylene, the melt index is 20 to 40g / 10min, has an isotactic index of 90% or more, the melting point of 160 to 165 ℃ excellent adhesiveness, characterized in that Fiber polypropylene nonwovens.
<구조식 1>
According to claim 1, wherein the nonionic hydrophilic surfactant is a long fiber polypropylene nonwoven fabric having excellent adhesiveness, characterized in that consisting of the sulfosuccinate (Sulfosuccinate) system of the following formula:
<Structure 1>
According to claim 1, wherein the hydrophilic surfactant is contained 0.4 to 2.0% by weight relative to the total weight of the nonwoven fabric, more preferably long fiber polypropylene nonwoven fabric, characterized in that consisting of 0.7 to 1.5% by weight.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020110036763A KR20120119039A (en) | 2011-04-20 | 2011-04-20 | Polypropylene non-woven fabric having an excellent adhesive property and and manufacturing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020110036763A KR20120119039A (en) | 2011-04-20 | 2011-04-20 | Polypropylene non-woven fabric having an excellent adhesive property and and manufacturing method thereof |
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| KR20120119039A true KR20120119039A (en) | 2012-10-30 |
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| Country | Link |
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