KR20020046382A - Two colored fiber, Method for preparing same and the use - Google Patents

Two colored fiber, Method for preparing same and the use Download PDF

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KR20020046382A
KR20020046382A KR1020000076051A KR20000076051A KR20020046382A KR 20020046382 A KR20020046382 A KR 20020046382A KR 1020000076051 A KR1020000076051 A KR 1020000076051A KR 20000076051 A KR20000076051 A KR 20000076051A KR 20020046382 A KR20020046382 A KR 20020046382A
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fiber
component
color
short fibers
internal components
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KR1020000076051A
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Korean (ko)
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KR100407251B1 (en
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서구원
이상근
조동제
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민태영
한국조폐공사
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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
    • D01D5/28—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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/20—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof characterised by a particular use or purpose
    • B42D25/24—Passports
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/20—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof characterised by a particular use or purpose
    • B42D25/29—Securities; Bank notes
    • 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
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F1/00—General methods for the manufacture of artificial filaments or the like
    • D01F1/02—Addition of substances to the spinning solution or to the melt
    • D01F1/04—Pigments
    • 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
    • D01F1/00—General methods for the manufacture of artificial filaments or the like
    • D01F1/02—Addition of substances to the spinning solution or to the melt
    • D01F1/06—Dyes

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • General Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mechanical Engineering (AREA)
  • Business, Economics & Management (AREA)
  • Accounting & Taxation (AREA)
  • Finance (AREA)
  • Paper (AREA)
  • Artificial Filaments (AREA)
  • Multicomponent Fibers (AREA)

Abstract

PURPOSE: Dichroic fiber, a manufacturing method thereof, and products thereof are provided which is characterized by having visual truth discriminating effect by adding a little fiber, being impossible to counterfeit and to falsify coins, being impossible to reproduce fluorescent color in time of color reproduction and being useful for a bank note, a passport, a check and securities. CONSTITUTION: The dichroic fiber is obtained by a process containing the steps of: cutting sheath-core type conjugated fiber comprised of external ingredient(1) and inner ingredient(2) having different colors, because dyes, pigment or colored material of fluorescent material are added to make short fiber; and then putting the short fiber in a solvent dissolving the inner ingredient alone to dissolve and to remove the inner ingredient in part, so having different colors of both ends and the middle of the short fiber. Structures of the sheath-core type conjugated fiber are sheath-core type, skin-core type and sea-island type.

Description

이색성 섬유, 이의 제조방법 및 이의 제품 {Two colored fiber, Method for preparing same and the use}Two-colored fiber, method for preparing same and product thereof {Two colored fiber, Method for preparing same and the use}

본 발명은 이색성 섬유, 이의 제조방법 및 이의 제품에 관한 것으로, 좀 더 상세하게는 염료, 안료 또는 형광물질의 착색물질의 첨가로 서로 다른 색상을 갖는 외부성분과 내부성분으로 구성된 외부심부형 복합섬유의 단섬유를 내부성분을 용해시키는 용매에 첨가하여 내부성분의 일부만을 용해제거시켜서 상기 단섬유의 양말단부 색과 중앙부 색이 다르도록 제조된 이색성 단섬유, 이의 제조방법 및 이를 보안성이 요구되는 소재에 첨가하여 제조된 위변조 방지용 은행권, 여권, 수표 및 유가증권의 제품에 관한 것이다.The present invention relates to a dichroic fiber, a method for manufacturing the same, and a product thereof, and more specifically, an external deep core composite composed of an external component and an internal component having different colors by addition of a coloring material of a dye, a pigment, or a fluorescent substance. Dichroic short fibers manufactured by dissolving only a part of the internal components by adding the short fibers of the fiber to a solvent for dissolving the internal components to have a different color from the sock end of the short fibers, the manufacturing method thereof, and the security thereof. The present invention relates to products of anti-counterfeiting banknotes, passports, checks and securities manufactured in addition to the required materials.

보안성이 요구되는 은행권, 수표, 여권, 채권, 기타 유가증권 등의 용지로 사용되는 종이는 위조방지 효과와 시각적 효과, 진위식별 효과를 위한 여러 가지 수단을 포함하고 있다. 이러한 수단 중에서 3∼10㎜ 정도의 단섬유를 부분적으로 색깔 또는 형광색이 나타나도록 하여 초지 공정중에 이 섬유를 일부 첨가하여 시각적으로 이색성을 띠게 하거나, 자외선 하에서 형광색이 나타나도록 하여 일반 용지와 차별화시키고 있다.Paper used as banknotes, checks, passports, bonds, and other securities that require security includes various means for counterfeit prevention, visual effects, and authenticity identification. Among these means, short fibers of about 3 to 10 mm may be partially colored or fluorescent, and some of the fibers may be added during the papermaking process to make them visually dichroic, or to display fluorescent colors under ultraviolet light, to differentiate them from ordinary paper. have.

종래 기술로서, 일본국 특개평 2-293500호에는 천연섬유나 합성섬유의 단일성분으로 만들어지는 종이에 나일론 또는 레이온과 같은 합성섬유나 천연섬유에 유색 염료 또는 비가시 형광염료를 염착하고 이를 3∼6mm 정도로 절단하여 단섬유를 제조하고 이를 지료에 일부 첨가하여 초지함으로써 일반 종이와의 감별을 용이하게 하여 위조방지 효과를 증진시키는 방법이 기재되어 있다. 이러한 특수기술의 효과는 종이를 구성하는 기본 섬유와는 다른 특정한 색 또는 구조를 띠는 색사가 종이에 부착되게 됨으로써 일반 종이와 차별화된다.In the prior art, Japanese Patent Laid-Open No. 2-293500 dyes colored dyes or invisible fluorescent dyes to synthetic fibers or natural fibers such as nylon or rayon on paper made of a single component of natural fibers or synthetic fibers, By cutting about 6mm to prepare a short fiber and adding it to a portion of paper to papermaking it is described a method for facilitating differentiation from ordinary paper to enhance the anti-counterfeiting effect. The effect of this special technology is distinguished from ordinary paper by attaching a color yarn having a specific color or structure different from the basic fibers constituting the paper to the paper.

이러한 목적으로 종이에 미량 첨가되는 섬유를 일반적으로 은사(security fiber, security thread)라고 표현하고 있다.For this purpose, fibers added in small amounts to paper are generally referred to as security fibers (security threads).

종래의 은사는 염색된 섬유 또는 착색제를 첨가하여 제조한 섬유를 3∼6㎜ 정도가 되도록 짧게 절단하여 이용하였다. 그리고 이의 개선된 방법으로는 유색 또는 무색의 형광을 염색하거나, 내부에 첨가하여 자외선으로 조사시 특정의 형광색이 나타나는 은사가 일반적으로 적용되고 있다. 이러한 은사는 그 색상이나 구조가 단조로운 결점이 있으며 또한 그 기술이 일반화되어 위조방지 기능이 둔화되고 있는 실정이다.Conventional silver was used by shortly cutting the fibers prepared by adding dyed fibers or colorants to about 3 to 6 mm. In addition, as a method of improving the color, colorless or colorless fluorescein dye, or when added to the inside of the irradiation with ultraviolet rays, a specific fluorescent color is generally applied. Such a gift is a monotonous defect in the color or structure, and the technology is generalized, the anti-counterfeiting function is slowing.

이러한 은사의 시각적 효과를 다양화한 기술로서, 섬유를 일정간격으로 남겨놓고 나머지를 차단한 채 일차 염색을 하고 건조시킨 다음, 차단한 부분을 개방하고 이미 염색된 부분은 이를 차단하여 여기에 다른 색상을 염색함으로써 섬유에 두 가지 이상의 색상이 염색된 이색섬유 또는 색동섬유를 제조하는 방법이 한국 공개특허공보 제93-8517호에 기재되어 있다.As a technology that diversifies the visual effect of these gifts, the fibers are left at regular intervals and the primary dyeing and drying are performed while the rest is blocked, and then the blocked parts are opened, and the already dyed parts are blocked so that other colors can be added. A method for producing dichroic fibers or colored copper fibers in which two or more colors are dyed by dyeing is described in Korean Patent Application Laid-Open No. 93-8517.

또한, 한국 공개특허공보 제98-6705호에는 여러가닥의 섬유를 꼰(twisting) 상태에서 염색을 하여 노출된 부분을 염색한 후에 이 섬유를 절단하여 꼰 상태를 푼 다음에 비노출되었던 부분에 다른 색으로 재염색한 색동섬유의 제조방법이 기재되어 있다.In addition, Korean Laid-Open Patent Publication No. 98-6705 discloses a method of dyeing a plurality of fibers in a twisted state to dye an exposed portion, and then cutting the fibers to release the braided state, and then a different color to an unexposed portion. The method for producing dyschromatic fiber is described.

상기 이들 기술은 염색공정이 복잡하고 대량제조가 곤란하며, 염색 부분의 경계면이 불균일하고 섬유 표면에 염색하여 내구성이 떨어지는 단점이 있다.These techniques have the disadvantage that the dyeing process is complex and difficult to manufacture a large amount, the interface of the dyeing portion is uneven, and the durability of the dye is reduced by dyeing the fiber surface.

그리고, 유색섬유에 형광색을 부가한 현색성 섬유로서, 일차적으로 섬유에청색염료를 염색하여 청색섬유를 제조하고, 이차적으로 그 위에 청색이 아닌 다른 색상의 형광안료나 형광 증백제를 염색한 섬유를 제조하는 방법이 한국 공개특허공보 제93-8517호에 기재되어 있다. 이러한 섬유는 가시광선에서 볼 때의 색과 자외선으로 비추어 볼 때의 색이 각기 다르게 보인다. 이 기술은 유색섬유를 단순히 형광염료에 침적하여 이용하는 것만으로도 효과가 유사하게 나타나기 때문에, 위조방지 요소로 이용하기에는 다소 부족하며 아울러 형광색 또한 강하게 나타나지 않는다.In addition, as a color-developed fiber with a fluorescent color added to the colored fiber, a blue dye is first manufactured by dyeing a blue dye on the fiber, and a second dye is used to dye a fluorescent pigment or fluorescent brightener of a color other than blue on the fiber. The manufacturing method is described in Korean Unexamined Patent Publication No. 93-8517. These fibers look different in the color seen in visible light and ultraviolet light. This technique is similar to the effect of simply immersing colored fibers in fluorescent dyes, so it is somewhat insufficient to use as an anti-counterfeiting element, and the fluorescent color is not strong.

한편, 섬유의 강도, 촉감, 연신, 꼬임, 극미세 섬유의 제조 등의 목적을 위하여 개발된 기술로서, 외부심부형 복합섬유를 제조하는 방법이 있다. 상기 복합섬유의 구조는 시스-코어형(sheath-core type), 스킨코어(skin-core type) 또는 해도형(sea-island type)을 들 수 있다. 이러한 시스-코어 또는 스킨 코어타입의 외부심부형 복합섬유는 섬유의 강도, 촉감, 연신, 꼬임의 목적을 위하여 사용되며, 해도형 섬유는 극미세 섬유를 제조하는 기술로서, 어원은 바다에 있는 섬이란 뜻이고 섬유의 단면을 보면 큰 원을 이루는 섬유 안에 수십 개의 작은 원을 이루는 섬유가 내재되어 있는 형태로 큰 원을 이루는 섬유의 해(sea) 성분과 그 안에 작은 원을 이루는 섬유의 도(island) 성분으로 구성되어 있다.On the other hand, as a technology developed for the purpose of the strength, touch, stretching, twisting, the production of ultra-fine fibers and the like, there is a method for producing the outer core composite fiber. The structure of the composite fiber may be a sheath-core type, a skin-core type or a sea-island type. The sheath-core or skin core type outer core composite fiber is used for the strength, touch, stretching and twisting of the fiber, and the island-in-the-sea fiber is a technology for producing ultrafine fibers, and the origin of which is an island in the sea. The cross-section of a fiber means that the sea component of a large circle of fibers and the islands of the small circle of fibers are embedded in the form of dozens of small circles. ) Component.

한국 공개특허공보 제87-700193호 및 제91-23366호를 참조하면, 비용출성분으로서 폴리에스터계의 폴리에틸렌 테레프탈레이트와 그의 공중합체, 폴리아미드계의 나이론 6와 그의 공중합체, 폴리올레핀계의 폴리에틸렌과 그의 공중합체, 폴리페닐렌설파이드가 이용되었고, 용출성분으로는 폴리아미드계의 나이론 6와 그의 공중합체, 폴리스티렌과 그의 공중합체, 폴리올레핀계의 폴리에틸렌과 그의 공중합체, 폴리비닐알콜의 공중합체, 아크릴 공중합체, 폴리에틸렌글리콜이 이용된 방법이 언급되어 있다.Referring to Korean Unexamined Patent Publication Nos. 87-700193 and 91-23366, polyester-based polyethylene terephthalate and its copolymer, nylon 6 and its copolymer, polyolefin-based polyethylene And a copolymer thereof, polyphenylene sulfide, and as elution components, polyamide-based nylon 6 and its copolymer, polystyrene and its copolymer, polyolefin-based polyethylene and its copolymer, polyvinyl alcohol, Mention is made of acrylic copolymers, polyethylene glycols being used.

또한 일본국 특개소 54-120732호, 55-6514호 및 59-10497호 등에는 비용출성분으로서 폴리에스터를 이용하고, 용출성분으로서 에틸렌글리콜과 유가 설폰산 금속염을 공중합한 변성폴리에스터를 이용하여 해도사를 제조하여 용출성분을 용해 제거함으로써 극미세섬유를 제조하는 방법이 기재되어 있다. 아울러, 한국 공개특허공보 제98-25671호에는 외부성분에는 폴리에스터를 알카리 용출성으로 개질하고, 내부성분으로는 폴리에스터를 적용하여 해도사를 제조하는 방법이 기재되어 있다.In addition, Japanese Patent Application Laid-Open Nos. 54-120732, 55-6514, and 59-10497 use polyester as a non-exhaust component, and a modified polyester obtained by copolymerizing ethylene glycol and a valuable sulfonic acid metal salt as an elution component. A method for producing ultra-fine fibers by preparing sea island yarn and dissolving and removing the eluting component is described. In addition, Korean Laid-Open Patent Publication No. 98-25671 discloses a method for producing island-in-the-sea yarn by modifying polyester to alkali dissolution property in an external component and applying polyester as an internal component.

이에 본 발명자들은 전술한 종래의 은사가 갖는 단점을 보완하고, 위변조 효과도 우수한 섬유를 얻기 위해 연구검토한 결과, 상기 외부심부형 복합섬유를 이용하는 방법에 기초하여 본 발명을 달성할 수 있었다.Accordingly, the inventors of the present invention have completed the above-described disadvantages of the present invention, and as a result of research and review to obtain a fiber having excellent forgery effect, the present invention was able to achieve the present invention based on the method using the outer core composite fiber.

따라서, 본 발명의 목적은 종래의 은사가 갖는 단점을 보완하고, 외부심부형 복합섬유의 외부성분 및 내부성분의 용해특성을 이용하여 유색과 형광이 특이하게 나타나는 이색성 섬유를 제공하고, 이러한 이색성 섬유의 제조방법 및 이를 적용한 제품을 제공하는데 있다.Accordingly, an object of the present invention is to compensate for the disadvantages of the conventional silver, and to provide a dichroic fiber that is unusually colored and fluorescence by using the dissolution properties of the external component and the internal component of the outer core composite fiber, this dichroic The present invention provides a method for producing a fiber and a product using the same.

상기 목적을 달성하기 위한 본 발명에 따른 이색성 섬유는, 염료, 안료 또는 형광물질의 착색물질의 첨가로 서로 다른 색상을 갖는 외부성분과 내부성분으로 구성된 외부심부형 복합섬유의 단섬유에 있어서, 내부성분을 용해시키는 용매에 첨가하여 내부성분을 부분적으로 용해 제거시켜서 상기 단섬유의 양말단부 색과 중앙부 색이 다른 특성을 갖는다.In the dichroic fiber according to the present invention for achieving the above object, in the short fiber of the outer deep core composite fiber composed of an external component and an internal component having a different color by the addition of a coloring material of a dye, pigment or fluorescent substance, It is added to the solvent for dissolving the internal component to partially dissolve and remove the internal component, so that the color of the sock end of the short fibers and the central color are different.

또한 상기 다른 목적을 달성하기 위한 본 발명에 따른 이색성 섬유의 제조방법은, 염료, 안료 또는 형광물질의 착색물질의 첨가로 서로 다른 색상을 갖는 외부성분과 내부성분으로 구성된 외부심부형 복합섬유를 절단하여 단섬유화시키는 단계; 및 상기 외부성분 및 내부성분의 용해특성을 고려하여 상기 내부성분만을 용해시킬 수 있는 용매에 상기 절단된 단섬유를 첨가하여 내부성분을 부분적으로 용해제거시켜 단섬유의 양말단부 색과 중앙부 색을 다르게 나타내는 단계를 포함한다.In addition, the method for producing a dichroic fiber according to the present invention for achieving the above another object, the outer deep core composite fiber composed of an external component and an internal component having a different color by the addition of a coloring material of a dye, pigment or fluorescent material Cutting to short fibers; And dissolving and removing the internal component partially by adding the cut short fibers to a solvent capable of dissolving only the internal component in consideration of the dissolution characteristics of the external component and the internal component, so that the color of the sock end of the short fiber and the central portion are different. Including the step of indicating.

또한, 상기 또 다른 목적을 달성하기 위한 본 발명에 따른 이색성 섬유의 또 다른 제조방법은, 염료, 안료 또는 형광물질의 착색물질이 첨가되지 않은 외부성분과 염료, 안료 또는 형광물질의 착색물질이 첨가된 내부성분으로 구성된 외부심부형 복합섬유를 절단하여 단섬유화시키는 단계; 상기 외부성분 및 내부성분의 용해특성을 고려하여 상기 내부성분만을 용해시킬 수 있는 용매에 상기 절단된 단섬유를 첨가하여 내부성분을 부분적으로 용해제거시키는 단계; 및 상기 외부성분을 내부성분에 첨가된 착색물질과 다른 색상으로 염색하여 단섬유의 양말단부 색과 중앙부 색을 다르게 나타내는 단계를 포함한다.In addition, another method for producing a dichroic fiber according to the present invention for achieving the above another object is that the coloring material of the dye, pigment or fluorescent material and the external component to which the coloring material of the dye, pigment or fluorescent material is not added Cutting the outer deep core composite fiber composed of the added inner component to short fibers; Partially dissolving and removing the internal components by adding the cut short fibers to a solvent capable of dissolving only the internal components in consideration of dissolution characteristics of the external components and internal components; And dyeing the external component with a color different from the coloring material added to the internal component to represent the color of the sock end of the short fiber and the color of the center part differently.

상기 또 다른 목적을 달성하기 위한 본 발명에 따른 제품은 염료, 안료 또는 형광물질의 착색물질의 첨가로 서로 다른 색상을 갖는 외부성분과 내부성분으로 구성된 외부심부형 복합섬유의 단섬유를 내부성분을 용해시키는 용매에 첨가하여 내부성분만을 부분적으로 용해제거시켜서 상기 단섬유의 양말단부 색과 중앙부 색이다르도록 제조된 이색성 단섬유를 보안성이 요구되는 소재에 첨가하여 제조된 위변조 방지용 은행권, 여권, 수표 및 유가증권의 제품이다.The product according to the present invention for achieving the above another object is a short fiber of the outer deep core composite fiber composed of an external component and an internal component having a different color by the addition of a coloring material of a dye, pigment or fluorescent material as an internal component Anti-counterfeiting banknote, passport prepared by adding a dichroic short-fiber prepared to be different from the sock-end color and the central color of the short-fiber by adding to a solvent to dissolve and partially dissolving only the internal components. , Checks and securities products.

도 1은 일반적인 시스-코어 타입의 외부심부형 복합섬유의 정단면도를 나타내며,Figure 1 shows a front cross-sectional view of a typical sheath-core type outer core type composite fiber,

도 2는 일반적인 해도형(sea-island type)인 외부심부형 복합섬유의 정단면도를 나타내고,Figure 2 shows a front cross-sectional view of the outer seam-type composite fibers of the general sea-island type,

도 3은 일반적인 시스-코어 타입의 외부심부형 복합섬유의 측단면도를 나타내며,Figure 3 shows a side cross-sectional view of a typical sheath-core type outer core type composite fiber,

도 4는 본 발명에 따른 일예로서, 용해특성을 이용하여 내부성분이 제거된 시스-코어 타입의 복합섬유의 단섬유의 측단면도를 나타낸다.Figure 4 is an example according to the present invention, showing a cross-sectional side view of the short fibers of the sheath-core type composite fiber with the internal components removed using the dissolution properties.

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

1: 외부성분,1: external component,

2: 내부성분,2: internal components,

3: 내부성분이 제거된 부분.3: The part whose internal component was removed.

이하, 본 발명을 첨부된 도면을 참조하면서 구체적으로 살펴보고, 동일한 부분은 동일부호로 표시하였다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings, and like parts are denoted by like reference numerals.

도 1 및 도 2는 일반적인 시스-코어 타입 및 해도형(sea-island type)의 외부심부형 복합섬유의 각각의 정단면도를 나타내고, 도 3은 일반적인 시스-코어 타입의 외부심부형 복합섬유의 측단면도를 나타내는데, 종래에는 섬유의 방사, 연신, 촉감, 물성 향상의 목적으로 이러한 복합섬유를 이용하거나, 용출가능한 용해성분으로 이루어진 외부성분(1)을 특정 용매에 의해 용출시켜서 내부성분(2)을 남겨 극미세 섬유를 제조하기 위해 사용하였다.1 and 2 show a front cross-sectional view of each of the general sheath-core type and sea-island type outer core type composite fibers, and FIG. 3 shows the side of the general sheath-core type outer core type composite fibers. The cross-sectional view is shown. Conventionally, the internal component (2) may be prepared by using such a composite fiber for the purpose of spinning, stretching, tactile and improving the properties of the fiber, or by eluting the external component (1) consisting of a dissolvable dissolved component with a specific solvent. It was used to prepare the ultrafine fibers.

본 발명은 일반적인 도 1 내지 도 3에 도시된 외부심부형 복합섬유의 구조를 이용한다. 상기 종래방법에서와 같이, 본 발명에서도 외부를 둘러싸는 성분을 외부성분(1)이라 하며, 둘러싸여 있는 성분을 내부성분(2)으로 표시하되, 용해특성에 따라 특정 용매에 용출되지 않는 비용해부분을 외부성분으로 하고 용출되는 용해성분을 내부성분으로 한다.The present invention uses the structure of the outer core composite fiber shown in Figures 1 to 3 in general. As in the conventional method, in the present invention, a component surrounding the outside is referred to as an external component (1), and the enclosed component is represented as an internal component (2), but the non-hazardous portion does not elute in a specific solvent according to dissolution characteristics. Is taken as the external component and the dissolved component eluted is the internal component.

이러한 구조의 복합섬유를 이용분야에 따라 적절한 길이, 일반적으로 3∼10㎜로 짧게 절단하여 단섬유화시키고, 이 단섬유를 용해특성을 고려한 특정 용매에 첨가함으로써 용해부분인 내부성분을 부분적으로 용출시켜 제거시킨다. 이 때, 외부성분과 내부성분의 색상의 차이로 인하여 상기 단섬유의 양말단부 색과 중앙부색이 다르게 된다(도 4 참조). 도 4는 본 발명에 따른 일예로서 용해특성을 이용하여 내부성분이 제거된 부분(3)을 갖는 시스-코어 타입의 복합섬유의 단섬유의 측단면도를 낸다. 도 4에서와 같이, 본 발명에 따른 섬유는 섬유의 양쪽 말단의 내부성분이 일부 제거됨으로써 섬유의 중앙부의 색상과 섬유의 양쪽말단부의 색상이 서로 다른 이색성을 나타나게 되며, 형광물질과 유색안료를 적절히 조합하면 여러 가지의 색상효과를 나타낼 수 있다.The composite fiber having such a structure is shortly cut into an appropriate length, generally 3 to 10 mm, depending on the field of application, and the short fiber is partially eluted by adding the short fiber to a specific solvent considering dissolution characteristics. Remove it. At this time, the color of the sock end of the short fiber and the center color are different due to the difference between the color of the external component and the internal component (see FIG. 4). Figure 4 shows a cross-sectional side view of short fibers of a sheath-core type composite fiber having a portion 3 with internal components removed using dissolution characteristics as an example according to the present invention. As shown in Figure 4, the fiber according to the present invention is a part of the internal components of both ends of the fiber is removed, the color of the central portion of the fiber and the color of both ends of the fiber appear different dichroism, fluorescent material and colored pigment When properly combined, various color effects can be produced.

상기 외부성분 및 내부성분은 염료, 안료 또는 형광물질의 착색물질의 첨가로 서로 다른 색상을 갖도록 하는데, 외부성분을 착색시키는 단계는 초기의 섬유의 방사시에 할 경우에는 섬유의 내구성이 좋아서 효과적이지만, 이를 초기에 첨가하지 않고 단섬유화 후에 내부성분을 부분 제거하고나서 외부성분을 염착하는 방법 또한 유용하다.The external component and the internal component to have a different color by the addition of a coloring material of a dye, pigment or fluorescent material, the step of coloring the external component is effective because the durability of the fiber when the initial spinning of the fiber is effective Also useful is a method of partially removing the internal component after short fiberization without dyeing it initially and then dyeing the external component.

이 때, 상기 외부성분에 사용하는 착색물질은 옅은 색의 염료, 안료 또는 형광물질로서, 효과적인 형광물질은 외관색이 유색이면서 형광을 나타내는, 내부성분보다는 옅은 색상의, 칼코시드계, 칼코민계, 칼코진계, 로다민계 및 루모겐계의 형광물질을 사용할 수 있으며, 또는 청색발광의 Sr(PO2)Cl:Eu, 녹색발광의 Zn2GeO2:Mn, 적색발광의 Y2O2S:Eu 등의 금속산화물계 형광물질로부터 선택하여 사용하는 것이 바람직하다. 외부성분에 사용되는 물질은 0.001중량% 내지 20중량%이며, 그 밖의 범위에서는 섬유의 형광 또는 방사 특성이 나빠진다. 또한, 내부성분에 사용하는 착색물질은 짙은 색의 염료, 안료 또는 형광물질로부터 선택하여 사용가능하다. 이러한 착색물질 중 염료 및 안료는 섬유성분에 용해 또는 용융되는 유기물질로 구성된 것이 유효하고 미세입자의 무기물질로 구성된 것도 이용할 수 있으나, 각각 외부성분 및 내부성분에 대해 혼화성, 분산성이 있다면 특별히 제한되지 않는다. 또한 내부성분에 사용되는 물질은 0.05중량% 내지 20중량%이며, 그 밖의 범위에서는 섬유의 색상 또는 방사특성이 나빠진다.At this time, the coloring material used for the external component is a light-colored dye, pigment or fluorescent material, the effective fluorescent material is a light color than the internal component, the chalcoside-based, chalcone-based, Chalcogen-based, rhodamine-based and lumogen-based fluorescent materials may be used, or blue-emitting Sr (PO 2 ) Cl: Eu, green-emitting Zn 2 GeO 2 : Mn, red-emitting Y 2 O 2 S: Eu, etc. It is preferable to select and use from the metal oxide fluorescent substance of the. The material used for the external component is 0.001% to 20% by weight, and in other ranges, the fluorescence or emission characteristics of the fiber deteriorate. In addition, the coloring material used for the internal component can be selected from a dark dye, pigment or fluorescent material. Among these coloring materials, dyes and pigments may be composed of organic materials that are dissolved or melted in a fiber component, and may be composed of inorganic particles of fine particles. It is not limited. In addition, the material used for the internal components is 0.05% by weight to 20% by weight, and in other ranges, the color or spinning properties of the fiber deteriorate.

또한, 상기 외부성분 및 내부성분은 폴리에틸렌테레프탈레이트와 이의 공중합체, 나일론 6와 이의 공중합체, 폴리에틸렌과 이의 공중합체, 폴리페닐렌설파이드, 폴리스티렌과 이의 공중합체, 폴리비닐알콜의 공중합체 및 아크릴 공중합체로 이루어진 군으로부터 용매의 용해특성을 고려하여 선택되는데, 외부와 심부는 용해특성을 달리하여 특정 용매에 외부성분이 비용해성 성분일 때 내부성분은 용해성 성분으로 선택하여 이용한다.In addition, the external components and internal components are polyethylene terephthalate and copolymers thereof, nylon 6 and copolymers thereof, polyethylene and copolymers thereof, polyphenylene sulfide, polystyrene and copolymers thereof, copolymers of polyvinyl alcohol and acrylic copolymers. It is selected in consideration of the dissolution characteristics of the solvent from the group consisting of coalescence, and the outer and the core parts are different in dissolution characteristics, when the external component is a non-soluble component in a specific solvent, the internal component is selected and used as a soluble component.

한편, 상기 용매는 개미산, 디메틸포름아미드, 클로로포름, 트리클로로에탄 등으로 이루어진 군으로부터 외부성분은 용해시키지 않으며 내부성분만 용해시킬 수 있도록 선택된다. 예를 들어, 외부성분으로서 폴리에스터를 사용하고, 내부성분으로서 나일론을 이용한 경우의 복합섬유를 단섬유로 절단하여 개미산에 침지하면 내부성분인 나이론이 용해되어 나온다. 이렇게 심부섬유가 원하는 정도로 용해되어 나오면 용매에서 섬유를 분리하여 용해를 중지시킨다.On the other hand, the solvent is selected from the group consisting of formic acid, dimethylformamide, chloroform, trichloroethane and the like so as not to dissolve the external components but only the internal components. For example, when polyester is used as an external component and nylon is used as the internal component, the composite fiber is cut into short fibers and immersed in formic acid to dissolve the internal nylon. When the deep fiber dissolves to the desired degree, the fiber is separated from the solvent to stop dissolution.

이러한 방법으로 제조된 단섬유는 예를 들어 시각적으로 섬유의 색상이 유색 A/유색 B/유색 A, 형광색 A/유색 B/형광색 A, 무색/유색/무색 등의 색동사 또는 반딧불과 같은 구조로 되어 있으며, 이렇게 양말단부 색과 중앙부 색이 다른 이색성단섬유를 보안성이 요구되는 소재, 예를 들어 종이의 제조시에 첨가하여 은행권, 여권, 수표 및 유가증권의 제품을 제조할 수 있다.The short fibers produced in this way are visually colored in a structure such as fireflies or colored verbs such as colored A / colored B / colored A, fluorescent A / colored B / fluorescent A, colorless / colored / colorless, etc. In this way, the dichroic short-fiber which is different from the sock end color and the central part color can be added in the production of a material requiring security, for example, paper, to manufacture products of banknotes, passports, checks and securities.

이 때, 사용된 섬유의 색상을 종이의 색상과 다르게 선택하면, 제품에서 제품의 색과 다른 단섬유가 관찰되고, 더욱이 형광물질을 첨가한 경우에는 자외선 하에서 관찰시에 단섬유의 양쪽 말단에서 고유의 형광색이 나타나게 된다. 이로써, 상기 제품은 위조나 변조가 불가능하고, 특히 칼라복사를 하였을 경우 복사물에서는 형광색이 관찰되지 않아 위변조 방지에 효과적이다.At this time, if the color of the fiber used is different from the color of the paper, the color of the product is different from the color of the product, and if the fluorescent material is added, it is inherent at both ends of the short fiber when observed under ultraviolet light. The fluorescent color of will appear. As a result, the product can not be forged or tampered with, especially when color copying is not observed in the copy color fluorescent is effective in preventing forgery.

이하의 실시예에서 통해 본 발명을 좀 더 구체적으로 설명하지만, 이에 본 발명이 한정되는 것은 아니다.In the following Examples, the present invention will be described in more detail, but the present invention is not limited thereto.

실시예 1Example 1

폴리에스터(폴리에틸렌테레프탈레이트 주성분, 융점 259℃)의 칩(chip)에 비가시 적색형광안료(제조사:욱성화학, 상품명:PANAX RED PKS-225, 발광파장:520㎚)를 1중량% 첨가하고 가열, 혼합하여 외부성분으로 하였다. 또한 폴리아미드(나이론 6, 무색, 융점 250℃)의 칩에 입자가 0.3㎛ 정도인 카본블랙 안료를 3중량% 첨가하고 가열, 혼합하여 내부성분으로 하였다. 이와 같이 제조된 폴리에스터의 외부성분과 폴리아미드의 내부성분을 각각의 방사용 익스투루더(extruder)에 40:60의 비율로 유입하여 섬유의 직경이 30㎛(약 9데니어) 정도가 되도록 용융방사하였다. 상기의 방법으로 제조된 외부심부형 복합섬유를 5㎜ 길이로 절단하여 단섬유화하였다. 이 단섬유 100g을 개미산 150㎖에 넣고 서서히 교반하면서 내부의 성분이 좌우측에서 약 1.5㎜ 정도가 녹아 나오도록 한 후에 메탄올을 첨가하여 개미산에 의한 용해성질을 정지시키고 단섬유를 분리하였다.1 weight% of an invisible red fluorescent pigment (manufacturer: Uksung Chemical, brand name: PANAX RED PKS-225, emission wavelength: 520nm) is added to the chip of polyester (polyethylene terephthalate main component, melting point 259 degreeC), and it heats And mixed to obtain an external component. Furthermore, 3 weight% of carbon black pigments whose particle | grains are about 0.3 micrometer were added to the chip | tip of polyamide (nylon 6, colorless, melting | fusing point 250 degreeC), and it heated and mixed to make it an internal component. The external component of the polyester and the internal component of the polyamide thus prepared are introduced into each spinning extruder at a ratio of 40:60 and melted so that the diameter of the fiber is about 30 μm (about 9 denier). Spinning. The outer core composite fiber prepared by the above method was cut into 5 mm length to short fibers. 100 g of the short fiber was placed in 150 ml of formic acid, and the mixture was slowly stirred to allow the internal components to melt about 1.5 mm from the left and right sides, and methanol was added to stop the solubility by the formic acid and to separate the short fibers.

실시예 2Example 2

외부성분에 체색(body color)이 황색이고, 황색형광색을 나타내는 안료(Eosine J)를 첨가하고, 내부성분에 프탈로시아닌블루 안료를 5중량% 첨가한 것을 제외하고는 상기 실시예 1과 동일하게 실시하였다.It was carried out in the same manner as in Example 1 except that a pigment having a body color of yellow and a yellow fluorescence color (Eosine J) was added to the external component and 5 wt% of a phthalocyanine blue pigment was added to the internal component. .

실시예 3Example 3

외부성분에 체색이 적색인 안료(퀴나크리돈 레드) 3중량%를 첨가하고, 내부성분에 프탈로시아닌블루 안료를 5중량% 첨가한 것을 제외하고는 상기 실시예 1과 동일하게 실시하였다.It was carried out in the same manner as in Example 1, except that 3% by weight of a pigment (quinacridone red) having a red color was added to the external components, and 5% by weight of a phthalocyanine blue pigment was added to the internal components.

상기 실시예 1, 2 및 3에 의해 제조된 단섬유의 외관 및 자외선 하에서의 색상을 비교하여 하기 표 1에 기재하였다.Table 1 compares the appearance of the short fibers prepared in Examples 1, 2 and 3 and the color under ultraviolet light.

구분division 구성Configuration 성분ingredient 형광,염료,안료Fluorescent, Dye, Pigment 내부 제거하기전의 섬유색상(좌측중앙우측)Fiber color before removing inside (left center right) 내부 제거한 후의 섬유색상(좌측중앙우측)Fiber color after removing inside (left center right) 외관색Exterior color 외관색Exterior color 자외선하의 색Color under ultraviolet light 실시예 1Example 1 외부Out 폴리에스터polyester 비가시적색형광Invisible Red Fluorescent 흑색/흑색/흑색Black / black / black 무색/흑색/무색Colorless / black / colorless 적색/흑색/적색Red / black / red 내부inside 나이론Nylon 흑색안료Black Pigment 실시예 2Example 2 외부Out 폴리에스터polyester 황색형광Yellow fluorescence 청색/청색/청색Blue / blue / blue 황색/청색/황색Yellow / blue / yellow 황색/청색/황색Yellow / blue / yellow 내부inside 나이론Nylon 청색안료Blue Pigment 실시예 3Example 3 외부Out 폴리에스터polyester 적색안료Red Pigment 보라/보라/보라Behold / Behold / Behold 적색/보라/적색Red / purple / red 적색/보라/적색Red / purple / red 내부inside 나이론Nylon 청색안료Blue Pigment

상기 실시예를 통해 제조된 단섬유를 종이를 제조할 때에 소량을 첨가함으로써 시각적인 진위식별 효과를 얻을 수 있고, 또한 자외선을 비추면 고유의 형광색이 나타나 위조나 변조가 불가능하고, 특히 칼라복사의 경우 형광색이 재현되지 않아 보안성이 요구되는 은행권, 여권, 수표, 유가증권 등의 제품에 이용하여 위조방지 효과를 얻을 수 있다.By adding a small amount of the short fiber prepared in the above-described paper when producing a paper, a visual authenticity effect can be obtained, and when the ultraviolet rays are illuminated, a unique fluorescence color appears, so that forgery or modulation is impossible, especially color radiation In this case, the fluorescent color is not reproduced, so it can be used for products such as banknotes, passports, checks, and securities that require security.

Claims (7)

염료, 안료 또는 형광물질의 착색물질의 첨가로 서로 다른 색상을 갖는 외부성분과 내부성분으로 구성된 외부심부형 복합섬유의 단섬유에 있어서, 내부성분을 용해시키는 용매에 첨가하여 내부성분을 일부 용해 제거시켜서 상기 단섬유의 양말단부 색과 중앙부 색이 다른 것을 특징으로 하는 이색성 단섬유.In the short fiber of the outer core composite fiber composed of the external and internal components having different colors by adding dyes, pigments or fluorescent materials, the internal components are partially dissolved by removing them from the solvent for dissolving the internal components. Dichroic short fibers, characterized in that the color of the sock end and the central portion of the short fibers are different. 제1항에 있어서, 상기 외부심부형 복합섬유의 구조는 시스-코어형, 스킨-코어형, 또는 해도(sea-island)형임을 특징으로 하는 이색성 단섬유.The dichroic short fibers according to claim 1, wherein the outer core composite fiber has a sheath-core type, a skin-core type, or a sea-island type structure. 염료, 안료 또는 형광물질의 착색물질의 첨가로 서로 다른 색상을 갖는 외부성분과 내부성분으로 구성된 외부심부형 복합섬유를 절단하여 단섬유화시키는 단계; 및Cutting and shortening the outer deep core composite fiber composed of an outer component and an inner component having different colors by the addition of a coloring material of a dye, a pigment or a fluorescent substance; And 상기 외부성분 및 내부성분의 용해특성을 고려하여 상기 내부성분만을 용해시킬 수 있는 용매에 상기 절단된 단섬유를 첨가하여 내부성분을 부분적으로 용해제거시켜 단섬유의 양말단부 색과 중앙부 색을 다르게 나타내는 단계를 포함하는 것을 특징으로 하는 이색성 단섬유의 제조방법.In consideration of the dissolution characteristics of the external and internal components, the cut short fibers are added to a solvent capable of dissolving only the internal components, thereby partially dissolving and removing the internal components. Method for producing a dichroic short fibers, characterized in that it comprises a step. 염료, 안료 또는 형광물질의 착색물질이 첨가되지 않은 외부성분과 염료, 안료 또는 형광물질의 착색물질이 첨가된 내부성분으로 구성된 외부심부형 복합섬유를 절단하여 단섬유화시키는 단계;Cutting the outer deep core composite fiber composed of an external component having no added coloring material of a dye, pigment or fluorescent material and an internal ingredient added with a coloring material of dye, pigment, or fluorescent material to short fibers; 상기 외부성분 및 내부성분의 용해특성을 고려하여 상기 내부성분만을 용해시킬 수 있는 용매에 상기 절단된 단섬유를 첨가하여 내부성분을 부분적으로 용해 제거시키는 단계; 및Partially dissolving and removing the internal components by adding the cut short fibers to a solvent capable of dissolving only the internal components in consideration of dissolution characteristics of the external components and internal components; And 상기 외부성분을 내부성분에 첨가된 착색물질과 다른 색상으로 염색하여 단섬유의 양말단부 색과 중앙부 색을 다르게 나타내는 단계를 포함하는 것을 특징으로 하는 이색성 단섬유의 제조방법.And dyeing the external component with a color different from the coloring material added to the internal component to represent the color of the sock end of the short fiber and the color of the central part differently. 제3항 또는 제4항에 있어서, 상기 외부성분 및 내부성분은 폴리에틸렌테레프탈레이트와 이의 공중합체, 나일론 6와 이의 공중합체, 폴리에틸렌과 이의 공중합체, 폴리페닐렌설파이드, 폴리스티렌과 이의 공중합체, 폴리비닐알콜의 공중합체 및 아크릴 공중합체로 이루어진 군으로부터 용매에의 용해특성을 고려하여 선택되며, 여기서 외부성분과 심부성분의 조합은 외부성분이 특정 용매에 비용해성 성분으로 선택되고 내부성분이 용해성 성분으로 선택되는 것을 특징으로 하는 이색성 단섬유의 제조방법.The method according to claim 3 or 4, wherein the external components and internal components are polyethylene terephthalate and copolymers thereof, nylon 6 and copolymers thereof, polyethylene and copolymers thereof, polyphenylene sulfide, polystyrene and copolymers thereof, poly From the group consisting of a copolymer of vinyl alcohol and an acrylic copolymer is selected in consideration of the dissolution properties in a solvent, wherein the combination of the external component and the core component is selected from the external component as a non-soluble component in a specific solvent and the internal component is a soluble component Method for producing a dichroic short fibers, characterized in that selected. 제3항 또는 제4항에 있어서, 상기 외부성분에 사용하는 착색물질은 내부성분보다는 옅은 색상의, 칼코시드계, 칼코민계, 칼코진계, 로다민계 및 루모겐계의 형광물질 또는 금속산화물계 인광물질로부터 선택됨을 특징으로 하는 이색성 단섬유의 제조방법.According to claim 3 or 4, wherein the coloring material used for the external component is lighter than the internal components, chalcoxide-based, chalcone-based, chalcogen-based, rhodamine-based and lumogen-based fluorescent or metal oxide-based phosphors Method for producing a dichroic short fibers, characterized in that selected from. 염료, 안료 또는 형광물질의 착색물질의 첨가로 서로 다른 색상을 갖는 외부성분과 내부성분으로 구성된 외부심부형 복합섬유의 단섬유를 내부성분을 용해시키는 용매에 첨가하여 내부성분의 일부만을 용해제거시켜서 상기 단섬유의 양말단부 색과 중앙부 색이 다르도록 제조된 이색성 단섬유를 보안성이 요구되는 소재에 첨가하여서 된 위변조 방지용 은행권, 여권, 수표 및 유가증권의 제품.By adding dyes, pigments or coloring materials of fluorescent substances, the short fibers of the outer core composite fibers composed of the outer and inner components having different colors are added to a solvent for dissolving the inner components, and only a part of the inner components are dissolved and removed. Products of anti-counterfeiting banknotes, passports, checks and securities made by adding the dichroic short fibers manufactured so that the color of the sock end of the short fibers is different from the center color.
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