KR20230067840A - Heat-adhesive Composite Fiber With Improved Volume - Google Patents
Heat-adhesive Composite Fiber With Improved Volume Download PDFInfo
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- KR20230067840A KR20230067840A KR1020210153528A KR20210153528A KR20230067840A KR 20230067840 A KR20230067840 A KR 20230067840A KR 1020210153528 A KR1020210153528 A KR 1020210153528A KR 20210153528 A KR20210153528 A KR 20210153528A KR 20230067840 A KR20230067840 A KR 20230067840A
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- polyethylene
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- 239000000835 fiber Substances 0.000 title claims abstract description 45
- 239000002131 composite material Substances 0.000 title claims abstract description 31
- 239000000853 adhesive Substances 0.000 title 1
- -1 polypropylene Polymers 0.000 claims abstract description 43
- 239000004698 Polyethylene Substances 0.000 claims abstract description 37
- 229920000573 polyethylene Polymers 0.000 claims abstract description 37
- 238000002844 melting Methods 0.000 claims abstract description 28
- 229920000728 polyester Polymers 0.000 claims abstract description 28
- 229920001225 polyester resin Polymers 0.000 claims abstract description 28
- 239000004645 polyester resin Substances 0.000 claims abstract description 26
- 239000004743 Polypropylene Substances 0.000 claims abstract description 21
- 229920001155 polypropylene Polymers 0.000 claims abstract description 21
- 239000000203 mixture Substances 0.000 claims abstract description 16
- 229920005989 resin Polymers 0.000 claims abstract description 12
- 239000011347 resin Substances 0.000 claims abstract description 12
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 44
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 claims description 12
- QQVIHTHCMHWDBS-UHFFFAOYSA-N isophthalic acid Chemical compound OC(=O)C1=CC=CC(C(O)=O)=C1 QQVIHTHCMHWDBS-UHFFFAOYSA-N 0.000 claims description 12
- 125000003118 aryl group Chemical group 0.000 claims description 10
- QWGRWMMWNDWRQN-UHFFFAOYSA-N 2-methylpropane-1,3-diol Chemical compound OCC(C)CO QWGRWMMWNDWRQN-UHFFFAOYSA-N 0.000 claims description 9
- OFOBLEOULBTSOW-UHFFFAOYSA-N Malonic acid Chemical compound OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 claims description 9
- 229920001903 high density polyethylene Polymers 0.000 claims description 8
- 239000004700 high-density polyethylene Substances 0.000 claims description 8
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims description 8
- 229920000642 polymer Polymers 0.000 claims description 8
- WERYXYBDKMZEQL-UHFFFAOYSA-N butane-1,4-diol Chemical compound OCCCCO WERYXYBDKMZEQL-UHFFFAOYSA-N 0.000 claims description 6
- 229920001684 low density polyethylene Polymers 0.000 claims description 6
- 239000004702 low-density polyethylene Substances 0.000 claims description 6
- 229920001179 medium density polyethylene Polymers 0.000 claims description 6
- 239000004701 medium-density polyethylene Substances 0.000 claims description 6
- XNGIFLGASWRNHJ-UHFFFAOYSA-N phthalic acid Chemical compound OC(=O)C1=CC=CC=C1C(O)=O XNGIFLGASWRNHJ-UHFFFAOYSA-N 0.000 claims description 6
- 229920000139 polyethylene terephthalate Polymers 0.000 claims description 5
- 239000005020 polyethylene terephthalate Substances 0.000 claims description 5
- DNIAPMSPPWPWGF-VKHMYHEASA-N (+)-propylene glycol Chemical compound C[C@H](O)CO DNIAPMSPPWPWGF-VKHMYHEASA-N 0.000 claims description 3
- YPFDHNVEDLHUCE-UHFFFAOYSA-N 1,3-propanediol Substances OCCCO YPFDHNVEDLHUCE-UHFFFAOYSA-N 0.000 claims description 3
- 239000002253 acid Substances 0.000 claims description 3
- 238000009833 condensation Methods 0.000 claims description 3
- 230000005494 condensation Effects 0.000 claims description 3
- KYTZHLUVELPASH-UHFFFAOYSA-N naphthalene-1,2-dicarboxylic acid Chemical compound C1=CC=CC2=C(C(O)=O)C(C(=O)O)=CC=C21 KYTZHLUVELPASH-UHFFFAOYSA-N 0.000 claims description 3
- 229920001707 polybutylene terephthalate Polymers 0.000 claims description 3
- 229920000166 polytrimethylene carbonate Polymers 0.000 claims description 3
- 229920001577 copolymer Polymers 0.000 claims description 2
- UPBKGNGPLHZZQM-UHFFFAOYSA-N CC(CO)C(CC)O.CC(CO)C(CC)O Chemical compound CC(CO)C(CC)O.CC(CO)C(CC)O UPBKGNGPLHZZQM-UHFFFAOYSA-N 0.000 claims 1
- 230000008018 melting Effects 0.000 abstract description 22
- 239000004745 nonwoven fabric Substances 0.000 description 23
- SPXWGAHNKXLXAP-UHFFFAOYSA-N 2-methylpentane-1,3-diol Chemical compound CCC(O)C(C)CO SPXWGAHNKXLXAP-UHFFFAOYSA-N 0.000 description 10
- 230000000052 comparative effect Effects 0.000 description 10
- 239000000155 melt Substances 0.000 description 10
- 238000011084 recovery Methods 0.000 description 9
- 230000006835 compression Effects 0.000 description 7
- 238000007906 compression Methods 0.000 description 7
- 150000002009 diols Chemical class 0.000 description 6
- 238000010521 absorption reaction Methods 0.000 description 4
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 4
- 150000001336 alkenes Chemical class 0.000 description 3
- 239000011230 binding agent Substances 0.000 description 3
- 230000009477 glass transition Effects 0.000 description 3
- 230000001965 increasing effect Effects 0.000 description 3
- 230000001788 irregular Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 3
- 238000009987 spinning Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical group C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- AEMRFAOFKBGASW-UHFFFAOYSA-N Glycolic acid Natural products OCC(O)=O AEMRFAOFKBGASW-UHFFFAOYSA-N 0.000 description 1
- RRHGJUQNOFWUDK-UHFFFAOYSA-N Isoprene Chemical compound CC(=C)C=C RRHGJUQNOFWUDK-UHFFFAOYSA-N 0.000 description 1
- 239000011162 core material Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 239000012770 industrial material Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 125000005498 phthalate group Chemical class 0.000 description 1
- 229920005672 polyolefin resin Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- KKEYFWRCBNTPAC-UHFFFAOYSA-L terephthalate(2-) Chemical group [O-]C(=O)C1=CC=C(C([O-])=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-L 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- D01D5/24—Formation of filaments, threads, or the like with a hollow structure; Spinnerette packs therefor
-
- 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
- D01D5/098—Melt spinning methods with simultaneous stretching
-
- 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
- D01D5/22—Formation of filaments, threads, or the like with a crimped or curled structure; with a special structure to simulate wool
-
- 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
- D01D5/28—Formation of filaments, threads, or the like while mixing different spinning solutions or melts during the spinning operation; Spinnerette packs therefor
- D01D5/30—Conjugate filaments; Spinnerette packs therefor
- D01D5/34—Core-skin structure; Spinnerette packs therefor
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
- D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
- D01F8/06—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyolefin as constituent
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
- D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
- D01F8/14—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyester as constituent
-
- 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
- D04H1/43825—Composite fibres
- D04H1/43828—Composite fibres sheath-core
-
- 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
- D04H1/4391—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 characterised by the shape of the fibres
- D04H1/43914—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 characterised by the shape of the fibres hollow fibres
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Nonwoven Fabrics (AREA)
- Multicomponent Fibers (AREA)
Abstract
본 발명은 제1성분 코어부는 폴리프로필렌(PP) 또는 폴리에스테르(PET) 수지 중 어느 하나이며, 제2성분 시스부는 폴리에틸렌(PE)에 저융점 폴리에스테르 수지가 1~30중량%가 혼합된 것으로, 2~30%의 중공율을 갖는 것을 특징으로 하는 볼륨감이 개선된 열접착 복합섬유에 관한 것이다.In the present invention, the first component core part is any one of polypropylene (PP) or polyester (PET) resin, and the second component sheath part is a mixture of polyethylene (PE) with 1 to 30% by weight of a low melting point polyester resin. , It relates to a heat-sealed composite fiber with improved volume, characterized in that it has a hollow ratio of 2 to 30%.
Description
본 발명은 위생용 부직포의 볼륨감과 회복율 향상되도록 부직포의 강성(Stiffness) 강화 기술이 적용된 올레핀계 열접착 복합섬유에 관한 것이다.The present invention relates to an olefin-based thermally bonded composite fiber to which a technique for enhancing the stiffness of a nonwoven fabric is applied to improve the volume and recovery rate of the nonwoven fabric for sanitary use.
열접착형 복합섬유는 열풍 등의 열에너지를 이용하여, 열융착에 의하여 부직포를 제조할 수 있다. 열접착형 복합섬유는 일반적으로 2 성분으로 구성되고, 열에 의해 1성분만을 용융시킴으로써 섬유끼리의 접착을 통해 벌키한 부직포를 용이하게 얻을 수 있어서 산업자재에 널리 이용되고 있다. 특히 올레핀계 열접착형 복합섬유는 기저귀, 냅킨, 패드 등의 위생재료 또는 생활용품이나 필터용 부직포로 널리 사용되고 있다.Thermally bonded composite fibers can be fabricated into nonwoven fabrics by thermal fusion using thermal energy such as hot air. Heat-bonded composite fibers are generally composed of two components, and by melting only one component with heat, a bulky nonwoven fabric can be easily obtained through adhesion of fibers to each other, and thus is widely used in industrial materials. In particular, olefin-based heat-bonded composite fibers are widely used as sanitary materials such as diapers, napkins, and pads, or as non-woven fabrics for household goods or filters.
일반적으로 올레핀계 열접착형 복합섬유는 폴리프로필렌 또는 폴리에스테르를 제1성분으로 하여 코어(core)를 형성하고, 코어보다 융점이 20 ℃ 이상 낮은 폴리에틸렌 또는 폴리프로필렌을 제2성분으로 하여 쉬스(sheath)를 형성하여 구성된다. 융점이 서로 다른 상기 2 성분 열접착형 복합섬유는 코어-쉬스 형태뿐만 아니라, 병렬형태, 분할형태 등으로도 적용이 가능하다. 또한 코어-쉬스 형태도 코어-쉬스 정심형태와 코어-쉬스 편심형태로 제조될 수 있다. 한편, 섬유의 단면형태는 원형 또는 원형이 아닌 이형단면일 수 있다. 일반적으로 원형단면보다 이형단면 섬유의 탄성이 우수하기 때문에 다양한 형태의 이형단면 섬유가 사용되고 있다.In general, olefin-based heat-sealable conjugate fibers use polypropylene or polyester as a first component to form a core, and polyethylene or polypropylene having a melting point lower than 20 ° C. or more than the core as a second component to form a sheath ) is formed by forming The two-component heat-sealable composite fibers with different melting points can be applied not only in a core-sheath form, but also in a parallel form, a divided form, and the like. In addition, the core-sheath shape can also be manufactured in a core-sheath centric shape and a core-sheath eccentric shape. On the other hand, the cross-sectional shape of the fiber may be a circular or non-circular irregular cross-section. In general, since the elasticity of irregular cross-section fibers is superior to circular cross-section fibers, various shapes of irregular cross-section fibers are used.
최근에는 생리대 및 기저귀와 같은 위생재료에 사용되는 부직포의 성능이 다양화되면서 고신축, 고벌키, 흡수/발수성과 같은 기능이 강조되고 있고, 이러한 다양한 기능을 제공할 수 있는 복합섬유의 개발이 이루어지고 있다. 특히, 액체 투과기능과 흡수기능을 향상시키기 위하여 공극이 많은 벌키한 부직포가 사용되고 있다.Recently, as the performance of nonwoven fabrics used in sanitary materials such as sanitary napkins and diapers has diversified, functions such as high elasticity, high bulkiness, and absorption/water repellency are emphasized, and composite fibers capable of providing these various functions have been developed. are losing In particular, bulky nonwoven fabrics with many pores are used to improve liquid permeability and absorption.
대한민국등록특허 제1224095호에서는 폴리에스테르계 수지로 이루어지는 제1성분과, 상기 폴리에스테르계 수지의 융점보다 20℃ 이상 낮은 폴리올레핀계 수지로 이루어지는 제2성분으로 구성되는 열접착성 복합섬유로서, 열처리 후의 벌크 유지율이 20% 이상인 것을 특징으로 하는 열접착성 복합섬유를 개시한다.Korean Patent Registration No. 1224095 discloses a heat-sealable composite fiber composed of a first component made of a polyester resin and a second component made of a polyolefin resin lower than the melting point of the polyester resin by at least 20° C. Disclosed is a heat-sealable composite fiber characterized in that the bulk retention is 20% or more.
본 발명자는 탄성과 벌키성이 우수한 부직포 바인더용 열접착형 복합섬유를 개발하여 특허출원 제2013-9707호로 출원한 바 있다. 특허출원 제2013-9707호에서는 제1성분으로 다관능 성분을 포함하는 폴리에스테르계 수지를 사용하여 탄성 및 벌키성이 우수한 부직포 바인더용 열접착형 복합섬유를 개시한다. 부직포 바인더용 열접착형 복합섬유는 우수한 탄성과 벌키성을 갖는 것이 매우 중요하기 때문에 이에 대한 연구개발이 지속되고 있다.The present inventor has developed a heat-bonded composite fiber for a nonwoven fabric binder with excellent elasticity and bulkiness and has applied for Patent Application No. 2013-9707. Patent Application No. 2013-9707 discloses a heat-bonded composite fiber for a nonwoven fabric binder having excellent elasticity and bulkiness by using a polyester-based resin containing a multifunctional component as a first component. Since it is very important for heat-bonded composite fibers for non-woven fabric binders to have excellent elasticity and bulkiness, research and development on them continues.
이에 본 발명자들은 부직포의 흡수속도 및 흡수율을 향상시키면서 탄성회복력 등 탄성이 우수한 볼륨감이 개선된 열접착 복합섬유를 개발하기에 이른 것이다.Accordingly, the inventors of the present invention have developed heat-sealed composite fibers with improved volume and excellent elasticity, such as elastic recovery, while improving the absorption rate and absorption rate of nonwoven fabric.
본 발명의 목적은 시스부의 폴리에틸렌에 저융점 폴리에스테르계 수지가 포함되어 볼륨감과 회복율이 우수한 특징이 있는 PE/PP 또는 PE/PET 시스코어 복합섬유를 제공한다. An object of the present invention is to provide a PE/PP or PE/PET sheath core composite fiber characterized by excellent volume and recovery rate by including a low melting point polyester resin in the polyethylene of the sheath part.
상기와 같은 문제를 해결하기 위하여 본 발명은 제1성분 코어부는 폴리프로필렌(PP) 또는 폴리에스테르(PET) 수지 중 어느 하나이며, 제2성분 시스부는 폴리에틸렌(PE)에 저융점 폴리에스테르 수지가 1~30중량%가 혼합된 것으로, 2~30%의 중공율을 갖는 것을 특징으로 하는 볼륨감이 개선된 열접착 복합섬유를 제공한다. In order to solve the above problems, the present invention is that the first component core part is any one of polypropylene (PP) or polyester (PET) resin, and the second component sheath part is polyethylene (PE) with a low melting point polyester resin. As a mixture of ~ 30% by weight, it provides a heat-sealed composite fiber with improved volume, characterized in that it has a hollowness of 2-30%.
또한 본 발명은 상기 폴리에스테르(PET) 수지는 방향족 디카르본산과 글리콜의 축중합물로, 방향족 디카르본산으로는 테레프탈산, 이소프탈산, 프탈산, 나프탈렌디카르본산 중 적어도 어느 하나를 사용할 수 있고， 글리콜로는 에틸렌글리콜, 1,3-프로판디올, 1,4-부탄디올 중 적어도 어느 하나를 사용할 수 있는 볼륨감이 개선된 열접착 복합섬유를 제공한다. In addition, in the present invention, the polyester (PET) resin is a polycondensate of aromatic dicarboxylic acid and glycol, and as the aromatic dicarboxylic acid, at least one of terephthalic acid, isophthalic acid, phthalic acid, and naphthalenedicarboxylic acid may be used, and glycol The furnace provides heat-sealed composite fibers with improved volume that can use at least one of ethylene glycol, 1,3-propanediol, and 1,4-butanediol.
또한 본 발명은 상기 제1성분 폴리에스테르(PET) 수지는 방향족 디카르본산과 글리콜의 축중합물로 폴리에틸렌테레프탈레이트, 폴리에틸렌 2,6-디나프탈레이트，폴리프로필렌테레프탈레이트，폴리부틸렌테레프탈레이트，폴리에틸렌이소프탈레이트 중 선택되는 하나 또는 2이상의 혼합물인 볼륨감이 개선된 열접착 복합섬유를 제공한다. In addition, in the present invention, the first component polyester (PET) resin is a condensation polymer of aromatic dicarboxylic acid and glycol, which is polyethylene terephthalate, polyethylene 2,6-dinaphthalate, polypropylene terephthalate, polybutylene terephthalate, polyethylene isophthalate It provides a thermally bonded composite fiber with improved volume, which is one or a mixture of two or more selected from phthalates.
또한 본 발명은 제2성분 시스부의 폴리에틸렌(PE)는 고밀도 폴리에틸렌(HDPE), 중밀도 폴리에틸렌(MDPE), 저밀도 폴리에틸렌(LDPE), 폴리프로필렌，에틸렌-프로필렌 공중합체 중 선택되는 하나 또는 2이상의 혼합물인 볼륨감이 개선된 열접착 복합섬유를 제공한다. In addition, the present invention, the polyethylene (PE) of the second component sheath is one or a mixture of two or more selected from high density polyethylene (HDPE), medium density polyethylene (MDPE), low density polyethylene (LDPE), polypropylene, ethylene-propylene copolymer Provided is a heat-sealed composite fiber with improved volume.
또한 본 발명은 상기 저융점 폴리에스테르 수지는 테레프탈산 또는 그 에스테르 형성성 유도체로 이루어진 산성분, 및 2-메틸-1,3-프로판디올(2-Methyl 1,3 Prorpanediol), 2-메틸-1,3-펜탄디올(2-Methyl 1,3 Pentanediol) 및 에틸렌글리콜(EG)로 이루어진 디올성분으로 형성된 볼륨감이 개선된 열접착 복합섬유를 제공한다. In addition, the present invention, the low-melting polyester resin is an acid component consisting of terephthalic acid or an ester-forming derivative thereof, and 2-methyl-1,3-propanediol, 2-methyl-1, Provided is a heat-sealed conjugate fiber having an improved sense of volume formed of a diol component composed of 3-pentanediol (2-Methyl 1,3 Pentanediol) and ethylene glycol (EG).
본 발명은 PE/PP 또는 PE/PET 시스코어 복합섬유로 구성되어 시스부의 폴리에틸렌에 저융점 폴리에스테르계 수지가 포함되어 상기 복합섬유로 제조된 부직포는 볼륨감과 회복율이 우수한 특징이 있다.The present invention is composed of PE / PP or PE / PET sheath core composite fibers, and a low melting point polyester resin is included in the polyethylene of the sheath portion, so that the nonwoven fabric made of the composite fibers has excellent volume and recovery rate.
이하 본 발명의 바람직한 실시예를 상세히 설명하기로 한다. 우선, 본 발명을 설명함에 있어, 관련된 공지기능 혹은 구성에 대한 구체적인 설명은 본 발명의 요지를 모호하지 않게 하기 위하여 생략한다.Hereinafter, preferred embodiments of the present invention will be described in detail. First of all, in describing the present invention, detailed descriptions of related known functions or configurations are omitted in order not to obscure the gist of the present invention.
본 명세서에서 사용되는 정도의 용어 '약', '실질적으로' 등은 언급된 의미에 고유한 제조 및 물질 허용오차가 제시될 때 그 수치에서 또는 그 수치에 근접한 의미로 사용되고, 본 발명의 이해를 돕기 위해 정확하거나 절대적인 수치가 언급된 개시 내용을 비양심적인 침해자가 부당하게 이용하는 것을 방지하기 위해 사용된다.As used herein, the terms 'about', 'substantially', and the like are used in a sense at or approximating that number when manufacturing and material tolerances inherent in the stated meaning are given, and are intended to convey an understanding of the present invention. Accurate or absolute figures are used to help prevent exploitation by unscrupulous infringers of the disclosed disclosure.
본 발명은 절곡성이 개선된 열접착 복합섬유에 관한 것으로 The present invention relates to thermally bonded composite fibers with improved bendability.
상기 복합섬유의 제1성분 코어부는 폴리프로필렌(PP) 또는 폴리에스테르(PET) 수지 중 어느 하나이며, 제2성분 시스부는 폴리에틸렌(PE)에 저융점 폴리에스테르 수지가 1~30중량%가 혼합된 특징이 있다. The first component core portion of the composite fiber is any one of polypropylene (PP) or polyester (PET) resin, and the second component sheath portion is polyethylene (PE) mixed with 1 to 30% by weight of a low melting point polyester resin. It has a characteristic.
상기 제1성분 폴리에스테르(PET) 수지는 방향족 디카르본산과 글리콜의 축중합물로, 방향족 디카르본산으로는 테레프탈산, 이소프탈산, 프탈산, 나프탈렌디카르본산 등을 사용할 수 있고， 글리콜로는 에틸렌글리콜, 1,3-프로판디올, 1,4-부탄디올 등을 사용할 수 있다.The first component polyester (PET) resin is a polycondensate of aromatic dicarboxylic acid and glycol, and terephthalic acid, isophthalic acid, phthalic acid, naphthalenedicarboxylic acid, etc. can be used as aromatic dicarboxylic acid, and ethylene glycol as glycol , 1,3-propanediol, 1,4-butanediol, etc. can be used.
또는 상기 제1성분 폴리에스테르(PET) 수지는 방향족 디카르본산과 글리콜의 축중합물로 폴리에틸렌테레프탈레이트, 폴리에틸렌 2,6-디나프탈레이트，폴리프로필렌테레프탈레이트，폴리부틸렌테레프탈레이트，폴리에틸렌이소프탈레이트 중 선택되는 하나 또는 2이상의 혼합물을 사용할 수 있을 것이다.Alternatively, the first component polyester (PET) resin is a condensation polymer of aromatic dicarboxylic acid and glycol, and is selected from polyethylene terephthalate, polyethylene 2,6-dinaphthalate, polypropylene terephthalate, polybutylene terephthalate, and polyethylene isophthalate. One or a mixture of two or more may be used.
바람직하게는 폴리에틸렌테레프탈레이트를 사용할 수 있으며, 폴리에스테르계 수지는 ASTM 02857에 준하여 측정한 고유점도(IV)가 0.50 내지 0.80 dL/ g인 것을 사용하는 것이 바람직할 것이다.Preferably, polyethylene terephthalate may be used, and it is preferable to use a polyester-based resin having an intrinsic viscosity (IV) of 0.50 to 0.80 dL/g measured according to ASTM 02857.
제2성분 시스부의 폴리에틸렌(PE)는 고밀도 폴리에틸렌(HDPE), 중밀도 폴리에틸렌(MDPE), 저밀도 폴리에틸렌(LDPE), 폴리프로필렌，에틸렌-프로필렌 공중합체 중 선택되는 하나 또는 2이상의 혼합물을 사용할 수 있을 것이다.The polyethylene (PE) of the second component sheath part may use one or a mixture of two or more selected from high density polyethylene (HDPE), medium density polyethylene (MDPE), low density polyethylene (LDPE), polypropylene, and ethylene-propylene copolymer. .
바람직하게는 고밀도 폴리에틸렌(HDPE)을 사용할 수 있으며, 유동흐름지수(MI ，Melting lndex)는 특별히 제한되지 않지만，유동흐름지수가 1 내지 100 g/lO분, 더욱 바람직하게는 5 내지 40g/10분인 것이 바람직할 것이다.Preferably, high-density polyethylene (HDPE) can be used, and the melt flow index (MI, Melting Index) is not particularly limited, but the flow index is 1 to 100 g / lO min, more preferably 5 to 40 g / 10 min. it would be preferable
상기 제2성분 시스부는 폴리에틸렌(PE) 70~99중량%에 저융점 폴리에스테르 수지가 1~30중량%가 혼합된다. In the second component sheath, 70 to 99% by weight of polyethylene (PE) is mixed with 1 to 30% by weight of a low melting point polyester resin.
상기 저융점 폴리에스테르 수지는 테레프탈산 또는 그 에스테르 형성성 유도체로 이루어진 산성분, 및 2-메틸-1,3-프로판디올(2-Methyl 1,3 Prorpanediol), 2-메틸-1,3-펜탄디올(2-Methyl 1,3 Pentanediol) 및 에틸렌글리콜(EG)로 이루어진 디올성분으로 형성된다. The low-melting polyester resin is an acid component composed of terephthalic acid or an ester-forming derivative thereof, and 2-methyl-1,3-propanediol, 2-methyl-1,3-pentanediol It is formed of a diol component consisting of (2-Methyl 1,3 Pentanediol) and ethylene glycol (EG).
본 발명에서 사용되는 상기 저융점 폴리에스테르 수지의 2-메틸-1,3-프로판디올은 두 번째 탄소에 메틸기가 결합되어 고분자 주쇄의 회전을 용이하게 하며 고분자 말단 부분인 것처럼 작용하여 주쇄 사이의 자유공간을 넓혀, 분자쇄 전체의 유동가능성을 증가시킨다. 이로 인해 고분자가 비정형이 되도록 하며 이소프탈산과 동일한 열적특성을 갖게 된다. 폴리머 주쇄에 존재하는 유연 분자쇄로 인해 탄성을 향상시켜 부직포 바인딩시 인열특성을 개선시키는 역할을 한다.The 2-methyl-1,3-propanediol of the low-melting polyester resin used in the present invention has a methyl group bonded to the second carbon to facilitate the rotation of the polymer main chain and acts as if it were a polymer end, thereby providing freedom between the main chains. By widening the space, the flowability of the entire molecular chain is increased. This makes the polymer amorphous and has the same thermal properties as isophthalic acid. Due to the flexible molecular chain present in the polymer main chain, it improves elasticity and improves the tear property during binding to nonwoven fabric.
즉, 2-메틸-1,3-프로판디올은 테레프탈레이트에 결합된 에틸렌 사슬에 메틸That is, 2-methyl-1,3-propanediol is formed by adding methyl to the ethylene chain bound to terephthalate.
기(-CH3)를 측쇄로 포함하여 중합된 수지의 주쇄가 회전할 수 있도록 공간을 확보함으로써 주쇄의 자유도 증가 및 수지의 결정성 저하를 유도하여 연화점(Ts) 및/또는 유리전이 온도(Tg)를 조절할 수 있다. 이는 종래 결정성 폴리에스테르 수지의 결정성을 저하시키기 위하여 비대칭 방향족 고리를 함유하는 이소프탈산(isophthalic acid, IPA)을 사용하는 경우와 동일한 효과를 나타낼 수 있다.By including a group (-CH3) as a side chain to secure space for rotation of the main chain of the polymerized resin, the degree of freedom of the main chain is increased and the crystallinity of the resin is reduced, thereby increasing the softening point (Ts) and/or glass transition temperature (Tg). ) can be adjusted. This may exhibit the same effect as the case of using isophthalic acid (IPA) containing an asymmetric aromatic ring in order to lower the crystallinity of a conventional crystalline polyester resin.
상기 2-메틸-1,3-펜탄디올은 상기 2-메틸-1,3-프로판디올과 같이 두 번째 탄소에 메틸기가 결합되어 고분자 주쇄의 회전을 용이하게 하며 폴리에스테르 수지에 저융점 특성을 부여하는 특성을 가지고 있으며, 2-메틸-1,3-프로판디올 보다 더 긴분자 체인으로 폴리에스테르 수지의 용융점도를 증가시키면서 고온에서 용융점도가급격하게 저하되는 것을 방지한다.Like 2-methyl-1,3-propanediol, the 2-methyl-1,3-pentanediol has a methyl group bonded to the second carbon to facilitate rotation of the polymer main chain and to impart low melting point characteristics to the polyester resin. It has a longer molecular chain than 2-methyl-1,3-propanediol, which increases the melt viscosity of the polyester resin and prevents the melt viscosity from rapidly decreasing at high temperatures.
상기와 같은 디올성분으로 형성되는 본 발명의 저융점 폴리에스테르 수지는 저융점 특성 및 접착력 향상을 위해 상기 저융점 폴리에스테르 수지의 2-메틸-1,3-프로판디올은 디올성분 중 20~50몰% 함유되는 것이 바람직할 것이다.The low melting point polyester resin of the present invention formed of the diol component as described above is 20 to 50 moles of 2-methyl-1,3-propanediol of the low melting point polyester resin in order to improve the low melting point property and adhesiveness % will be preferred.
상기 2-메틸-1,3-펜탄디올은 디올성분 중 0.01몰% 미만으로 함유되면 용융점도 향상효과가 미미하며, 5몰%를 초과하면 용융점도가 급격히 증가하여 방사공정성이 저하될 수 있는 것으로 2-메틸-1,3-펜탄디올은 디올성분 중 0.01~5몰%를 함유하는 것이 바람직할 것이다.When the 2-methyl-1,3-pentanediol is contained in less than 0.01 mol% of the diol component, the effect of improving the melt viscosity is insignificant, and when the 2-methyl-1,3-pentanediol is contained in the diol component, the melt viscosity increases rapidly and the spinning processability may deteriorate. 2-methyl-1,3-pentanediol may preferably contain 0.01 to 5 mol% of the diol component.
상기 2-메틸-1,3-펜탄디올은 0.05~2몰%를 함유하는 것이 가장 바람직할 것이다.It is most preferable that the 2-methyl-1,3-pentanediol contains 0.05 to 2 mol%.
상기 2-메틸-1,3-펜탄디올을 함유하는 저융점 폴리에스테르 수지는 220℃의The low melting point polyester resin containing the 2-methyl-1,3-pentanediol is 220 ℃
용융점도 및 260℃의 용융점도의 차이가 600포이즈(poise)이하로 고온에서 용융점도가 급격하게 저하되지 않는 특정을 가진다.The difference between the melt viscosity and the melt viscosity at 260°C is 600 poise or less, and the melt viscosity does not rapidly decrease at high temperatures.
상기 저융점 폴리에스테르 수지의 220℃의 용융점도 및 260℃의 용융점도의차이는 낮으면 낮을 수록 바람직한 것으로 500포이즈이하인 것이 더욱 바람직할 것이다.The lower the difference between the melt viscosity of the low-melting polyester resin at 220° C. and the melt viscosity at 260° C., the lower the better.
상기와 같이 2-메틸-1,3-프로판디올과 2-메틸-1,3-펜탄디올이 함유되는 본 발명의 저융점 폴리에스테르 수지는 연화온도가 100℃~150℃이고, 유리전이 온도는 50℃ 내지 90℃, 고유점도 0.50㎗/g이상으로 우수한 물성을 가지게 된다.As described above, the low melting point polyester resin of the present invention containing 2-methyl-1,3-propanediol and 2-methyl-1,3-pentanediol has a softening temperature of 100 ° C to 150 ° C, and a glass transition temperature 50 ℃ to 90 ℃, it has excellent physical properties with an intrinsic viscosity of 0.50 dl / g or more.
또한, 상기 복합섬유는 제1성분과 제2성분이 중량비 80:20~20:80로 형성되는 것이 바람직할 것이다.In addition, it is preferable that the composite fiber is formed in a weight ratio of 80:20 to 20:80 between the first component and the second component.
2성분의 섬유는 중공을 지녀 볼륨감과 회복율이 우수한 부직포를 제공한다.The two-component fibers are hollow to provide a nonwoven fabric with excellent volume and recovery rate.
이하 본 발명에 따른 절곡성이 개선된 열접착 복합섬유를 제조하기 위한 방법의 실시예를 나타내지만, 본 발명이 실시예로 한정되는 것은 아니다.Hereinafter, an example of a method for producing a heat-bonded conjugate fiber with improved bendability according to the present invention is shown, but the present invention is not limited to the examples.
실시예 1Example 1
코어부 제1성분 폴리프로필렌(PP) 조성물이 50중량% 및 시스부 제2성분 조성물로서 폴리에틸렌(PE)과 저융점 폴리에스테르 수지(LM)이 9:1 중량비율로 전체 50중량%를 압출기에 투입하여 용융하였다. 50% by weight of the first component polypropylene (PP) composition of the core part and 50% by weight of polyethylene (PE) and low melting point polyester resin (LM) as the second component composition of the sheath part in a weight ratio of 9: 1 in an extruder It was added and melted.
용융된 제1성분 및 제2성분 조성물을 중공이 있는 시스-코어 소프트 복합방사장치로 유입한 후 800 m/분의 방사속도로 방사하였다. 폴리에틸렌 테레프탈레이트의 유리전이온도 이상의 온도에서 방사된 복함섬유를 3.0~4.0배 연신배향하고, 크림프를 부여하여 38~64 mm로 절단하여 본 발명에 따른 열접착 복합섬유를 제조하였다. The molten first and second component compositions were introduced into a hollow sheath-core soft composite spinning apparatus, and then spun at a spinning speed of 800 m/min. The composite fibers spun at a temperature equal to or higher than the glass transition temperature of polyethylene terephthalate were stretched and oriented 3.0 to 4.0 times, crimped, and cut to 38 to 64 mm to prepare heat-sealed composite fibers according to the present invention.
제조된 복합섬유는 30GSM 부직포로 제조하여 제조하였다.The prepared composite fiber was prepared by making a 30GSM nonwoven fabric.
실시예 2Example 2
제2성분 조성물로서 폴리에틸렌(PE)과 저융점 폴리에스테르 수지(LM)이 8:2 중량비율 인점을 제외하고 실시예 1과 동일.Same as Example 1 except that polyethylene (PE) and low melting point polyester resin (LM) are 8:2 weight ratio as the second component composition.
실시예 3Example 3
제2성분 조성물로서 폴리에틸렌(PE)과 저융점 폴리에스테르 수지(LM)이 7:3 중량비율 인점을 제외하고 실시예 1과 동일.As the second component composition, polyethylene (PE) and low melting point polyester resin (LM) are the same as in Example 1 except that the weight ratio is 7:3.
실시예 4Example 4
제1성분 조성물이 폴리에스터(PET)인 점을 제외하고 실시예 1과 동일.Same as Example 1 except that the first component composition is polyester (PET).
비교예 1Comparative Example 1
중공율 없이 섬유를 제조한것을 제외하고 실시예 4와 동일.Same as Example 4 except that the fiber was prepared without hollowness.
비교예 2Comparative Example 2
제2성분 조성물로서 폴리에틸렌(PE)과 저융점 폴리에스테르 수지(LM)이 100:0 중량비율 인점을 제외하고 실시예 4과 동일.Same as Example 4 except that the weight ratio of polyethylene (PE) and low melting point polyester resin (LM) as the second component composition is 100:0.
비교예 3Comparative Example 3
제2성분 조성물로서 폴리에틸렌(PE)과 저융점 폴리에스테르 수지(LM)이 100:0 중량비율 인점을 제외하고 실시예 1과 동일.Same as Example 1 except that the weight ratio of polyethylene (PE) and low melting point polyester resin (LM) as the second component composition is 100:0.
비교예 4Comparative Example 4
중공율 없이 섬유를 제조한것을 제외하고 실시예 1과 동일.Same as Example 1 except that the fiber was prepared without hollowness.
◈ 실시예 및 비교예의 물성 평가 ◈ Evaluation of physical properties of Examples and Comparative Examples
1. 물성평가 방법1. Property evaluation method
(1) 부직포 두께(1) Non-woven fabric thickness
제조된 복합섬유를 Air Through bonding 부직포 Line에서 30GSM 중량으로 제하였다. 이렇게 제조된 부직포의 두께를 측정하였다.The manufactured composite fibers were subtracted in the weight of 30 GSM from the Air Through bonding nonwoven fabric line. The thickness of the nonwoven fabric thus prepared was measured.
(2) 부직포 압축 회복율(%)(2) Non-woven compression recovery rate (%)
제조된 부직포를 12.3cm x 4.5cm 면적의 120g 중량의 block으로 48hr 압축 후 block을 제거 후 3시간 후 부직포 두께를 측정하여 비교하였다.The prepared nonwoven fabric was compressed into a block of 120 g in area of 12.3 cm x 4.5 cm for 48 hr, then the block was removed and the thickness of the nonwoven fabric was measured and compared 3 hours later.
압축회복율(%) = [(압축 전 부직포 두께 - 압축 후 두께)/압축 전 두께] x 100 Compression recovery rate (%) = [(nonwoven fabric thickness before compression - thickness after compression)/thickness before compression] x 100
(50wt%)1st ingredient
(50wt%)
표 1에서와 같이 본 발명에 따른 실시예 1~4는 비교예 1 내지 4에 비해 부직포 두께가 3.2이상으로 우수하며 압축회복율도 우수함을 알 수 있다.As shown in Table 1, it can be seen that Examples 1 to 4 according to the present invention have a nonwoven fabric thickness of 3.2 or more and excellent compression recovery rate compared to Comparative Examples 1 to 4.
이상에서 설명한 바와 같은 본 설명의 특징 및 기타의 장점은 후술되는 실시예로부터 보다 명백하게 될 것이며,하기 실시예는 예시적인 목적으로 기재될 뿐 본 발명의 보호범위를 한정하거나 제한하는 것으로 해석될 수 없다.Features and other advantages of the present description as described above will become more apparent from the following examples, which are described for illustrative purposes only and cannot be construed as limiting or limiting the scope of protection of the present invention. .
Claims (5)
제2성분 시스부는 폴리에틸렌(PE)에 저융점 폴리에스테르 수지가 1~30중량%가 혼합된 것으로, 2~30%의 중공율을 갖는 것을 특징으로 하는 볼륨감이 개선된 열접착 복합섬유.
The first component core part is any one of polypropylene (PP) or polyester (PET) resin,
The second component sheath is a heat-bonded conjugate fiber with improved volume, characterized in that it has a hollow ratio of 2 to 30% by mixing polyethylene (PE) with 1 to 30% by weight of a low-melting polyester resin.
상기 폴리에스테르(PET) 수지는 방향족 디카르본산과 글리콜의 축중합물로, 방향족 디카르본산으로는 테레프탈산, 이소프탈산, 프탈산, 나프탈렌디카르본산 중 적어도 어느 하나를 사용할 수 있고， 글리콜로는 에틸렌글리콜, 1,3-프로판디올, 1,4-부탄디올 중 적어도 어느 하나를 사용할 수 있는 볼륨감이 개선된 열접착 복합섬유.
According to claim 1,
The polyester (PET) resin is a polycondensate of aromatic dicarboxylic acid and glycol, and at least one of terephthalic acid, isophthalic acid, phthalic acid, and naphthalenedicarboxylic acid can be used as the aromatic dicarboxylic acid, and ethylene glycol as the glycol , 1,3-propanediol, 1,4-butanediol heat-sealed conjugate fibers with improved volume that can use at least one of them.
상기 제1성분 폴리에스테르(PET) 수지는 방향족 디카르본산과 글리콜의 축중합물로 폴리에틸렌테레프탈레이트, 폴리에틸렌 2,6-디나프탈레이트，폴리프로필렌테레프탈레이트，폴리부틸렌테레프탈레이트，폴리에틸렌이소프탈레이트 중 선택되는 하나 또는 2이상의 혼합물인 볼륨감이 개선된 열접착 복합섬유.
According to claim 1,
The first component polyester (PET) resin is a condensation polymer of aromatic dicarboxylic acid and glycol and is selected from polyethylene terephthalate, polyethylene 2,6-dinaphthalate, polypropylene terephthalate, polybutylene terephthalate, and polyethylene isophthalate. Heat-sealed composite fiber with improved volume, which is one or a mixture of two or more.
제2성분 시스부의 폴리에틸렌(PE)는 고밀도 폴리에틸렌(HDPE), 중밀도 폴리에틸렌(MDPE), 저밀도 폴리에틸렌(LDPE), 폴리프로필렌，에틸렌-프로필렌 공중합체 중 선택되는 하나 또는 2이상의 혼합물인 볼륨감이 개선된 열접착 복합섬유.
According to claim 1,
The polyethylene (PE) of the second component sheath is one or a mixture of two or more selected from among high density polyethylene (HDPE), medium density polyethylene (MDPE), low density polyethylene (LDPE), polypropylene, and ethylene-propylene copolymer, and the sense of volume is improved. heat-bonded composite fibers.
상기 저융점 폴리에스테르 수지는 테레프탈산 또는 그 에스테르 형성성 유도체로 이루어진 산성분, 및 2-메틸-1,3-프로판디올(2-Methyl 1,3 Prorpanediol), 2-메틸-1,3-펜탄디올(2-Methyl 1,3 Pentanediol) 및 에틸렌글리콜(EG)로 이루어진 디올성분으로 형성된 볼륨감이 개선된 열접착 복합섬유.According to claim 1,
The low-melting polyester resin is an acid component composed of terephthalic acid or an ester-forming derivative thereof, and 2-methyl-1,3-propanediol, 2-methyl-1,3-pentanediol (2-Methyl 1,3 Pentanediol) and ethylene glycol (EG) thermally bonded conjugate fibers with improved volume.
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