WO2017155252A1 - Filament à double structure - Google Patents

Filament à double structure Download PDF

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Publication number
WO2017155252A1
WO2017155252A1 PCT/KR2017/002353 KR2017002353W WO2017155252A1 WO 2017155252 A1 WO2017155252 A1 WO 2017155252A1 KR 2017002353 W KR2017002353 W KR 2017002353W WO 2017155252 A1 WO2017155252 A1 WO 2017155252A1
Authority
WO
WIPO (PCT)
Prior art keywords
core
filament
sheath
double
structured
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/KR2017/002353
Other languages
English (en)
Korean (ko)
Inventor
강기태
김성진
황소희
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BBC Co Ltd
Original Assignee
BBC Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by BBC Co Ltd filed Critical BBC Co Ltd
Publication of WO2017155252A1 publication Critical patent/WO2017155252A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • D01D5/28—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
    • 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
    • D01F1/10—Other agents for modifying properties
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/02—Yarns or threads characterised by the material or by the materials from which they are made
    • D02G3/04—Blended or other yarns or threads containing components made from different materials
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
    • D02G3/26—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre with characteristics dependent on the amount or direction of twist
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
    • D02G3/32—Elastic yarns or threads ; Production of plied or cored yarns, one of which is elastic
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
    • D02G3/36—Cored or coated yarns or threads
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/44—Yarns or threads characterised by the purpose for which they are designed

Definitions

  • the present invention relates to a filament used as a bristle, and more particularly, to a filament of a double structure in which the sheath forming the center of the filament and the core forming the outline thereof are made of different materials.
  • Effective plaque removal and gum disease prevention are important to maintain healthy teeth.
  • the bristles must reach all areas, including teeth, between teeth (interdentals).
  • the monofilament used in the toothbrush can be divided into nylon monofilament and polyester monofilament according to the material.
  • Monofilament made of nylon has an advantage of preventing damage to the gums due to moderate flexibility and elasticity, but has the disadvantage of high hygroscopicity and easy wear.
  • Such nylon monofilaments must be designed to have a predetermined thickness or more in order to have the necessary cleaning power.
  • the monofilament of the polyester material (polybutylene terephthalate or polyethylene terephthalate, etc.) has the advantage of high strength, excellent durability and low hygroscopicity compared to nylon monofilament.
  • the flexibility and elasticity is low, there is a risk of irritating the gums when brushing teeth.
  • Korean Patent Registration No. 10-0271580 (2000.08.17.) Discloses a toothbrush having bristles mainly composed of silicone and nylon.
  • Conventional toothbrushes include a toothbrush bag having a bristles receiving portion at one end, a base detachably installed at the bristle receiving portion, and a bristle member formed at an upper portion of the base, wherein the bristle members are silicone bristle and nylon. Brush heads are provided alternately.
  • the toothbrush described above reinforces the strength of the disadvantages of nylon by adding silicone bristles to the nylon bristles, but the plaque is not effectively removed, and thus, there is a lack of sufficient cleaning power.
  • an object of the present invention is a filament containing a core and a sheath of different materials, the strength of the dual structure that can have flexibility and elasticity while having excellent durability To provide the filament.
  • Another object of the present invention is to provide a dual-structured filament capable of sharpening the end portion, thereby improving the plaque removal and the desorption efficiency of the food remaining in the interdental and gums.
  • Still another object of the present invention is to provide a filament having a double structure, which is formed in a twisted form between both ends of the filament, which can double the strength and elasticity as the filament.
  • Still another object of the present invention is to provide a double-structured filament that can produce various colors by inducing light refraction because the sheath surrounding the core has a triangular cross-sectional shape.
  • the present invention for achieving the above object is a core (core) forming a triangular bar (bar); And a sheath in which the core is embedded in the central portion, wherein the sheath discloses a double structure filament, wherein the core forms a pipe of an inverted triangle in which the core is embedded in the central portion.
  • the core is exposed to the outside through the outer edge of the sheath.
  • the core further includes a friction protrusion formed at an edge exposed to the outside of the sheath.
  • the friction protrusion is made of a curved surface, extending along the corner, it is preferable that the irregularities are formed on the outside.
  • the said filament has at least the edge part of the sheath and the said sheath and the core being sharply formed.
  • the filament is preferably in the form of a twist in the longitudinal direction between at least one end selected from the sheath and the core.
  • the said core and the sheath are different materials.
  • the said core is 1 type, or 2 or more types chosen from ethylene- alpha olefin elastomer, a propylene- alpha olefin elastomer, a thermoplastic olefin elastomer, a thermoplastic styrene elastomer, a urethane thermoplastic elastomer, or a mixture thereof.
  • the core is preferably one selected from polylactic acid (PLA), polycaprolactone (PCL), poly hydroxy al kanoate (PHA), and polybutylene succinate (PBS).
  • PLA polylactic acid
  • PCL polycaprolactone
  • PHA poly hydroxy al kanoate
  • PBS polybutylene succinate
  • the said core is silicone or a silicone type compound.
  • the said sheath is 1 type, or 2 or more types chosen from a polyethylene terephthalate, a polybutylene terephthalate, a polytrimethylene terephthalate, a polycyclohexane dimethylene terephthalate, or a copolymer thereof.
  • a filament including cores and sheaths of different materials high strength and durability, as well as flexibility and elasticity can reduce gum irritation and damage due to brushing and double the effect of brushing. It was made.
  • the present invention by processing the end sharply, it is possible to increase the efficiency of plaque removal and desorption of the food remaining in the interdental and gums, thereby doubling the effect of caries prevention.
  • the present invention is made of a twisted form between the both ends of the filament, to double the strength and elasticity as the filament to increase the effect on the teeth and minimize the damage.
  • the present invention is because the sheath surrounding the core has a triangular cross-sectional shape, it is possible to produce a variety of colors by inducing the refraction of light, and thus not only improve the aesthetic appearance of the appearance, but also stimulate the curiosity of the user You can expect the effect to make your teeth fun.
  • FIG. 1 is a perspective view for explaining a filament according to an embodiment of the present invention
  • FIG. 2 is a cross-sectional view of the filament shown to explain an example of a core according to an embodiment of the present invention
  • FIG. 3 is a perspective view illustrating an example of a filament according to an embodiment of the present invention.
  • FIG. 4 is a perspective view illustrating another example of a filament according to an exemplary embodiment of the present invention.
  • FIG. 1 is a perspective view showing to explain the filament according to an embodiment of the present invention.
  • the filament 100 includes a core 110 and a sheath 120 surrounding the outside of the core 110.
  • the core 110 forms a triangular solid bar shape and is intended to prevent the gums from being damaged when the filament 100 is brushed to provide flexibility and elasticity.
  • the core 110 may be used without limitation as long as it is a thermoplastic elastomer resin having a predetermined coefficient of friction.
  • the coefficient of friction of the thermoplastic elastomer resin used in the core 110 of the present embodiment is 0.2 to 0.9, when having a friction coefficient of this range, the friction between the bristles and gums, and the bristles and teeth is appropriately adjusted, Or cleaning power can be maximized without damaging the teeth.
  • the friction coefficient is less than 0.2, it causes a problem that the cleaning power is lowered, if the friction coefficient exceeds 0.9 can cause a problem that the gum is easily damaged with only a slight pressure.
  • thermoplastic elastomer series described above includes ethylene-? Olefin elastomers such as ethylene-hexene elastomers, ethylene-octene elastomers, propylene-hexene elastomers, propylene-octene elastomers, propylene-?-Olefin elastomers, ethylene-propylene- Thermoplastic olefin elastomers including diene elastomers and the like.
  • ethylene-? Olefin elastomers such as ethylene-hexene elastomers, ethylene-octene elastomers, propylene-hexene elastomers, propylene-octene elastomers, propylene-?-Olefin elastomers, ethylene-propylene- Thermoplastic olefin elastomers including diene elastomers and the like.
  • styrene-butadiene block copolymer styrene-isoprene block copolymer, hydrogenated styrene-butadiene elastomer, styrene-butadiene-styrene elastomer, styrene-ethylene-butylene-styrene elastomer, styrene-ethylene-propylene-styrene Thermoplastic styrene-based elastomers or urethane-based thermoplastic elastomers, including elastomers and the like.
  • the core 110 of the present embodiment can be used alone or a mixture of the above-described thermoplastic olefin elastomer, thermoplastic styrene elastomer, urethane-based thermoplastic elastomer.
  • the core 110 may be made of a biodegradable resin having excellent high temperature molding processability.
  • a biodegradable resin having excellent high temperature molding processability.
  • PLA polylactic acid
  • PCL polycaprolactone
  • PHA poly hydroxy al kanoate
  • PBS polybutylene succinate
  • the core 110 may be made of silicon or a silicon-based compound.
  • the core 110 may further contain a cleaning power improver.
  • the elastic resin itself is also excellent in cleaning power, but by including a cleaning power improving agent, it is possible to maintain the initial cleaning power, in particular, to provide a refreshing brushing while minimizing the irritation to the gums.
  • the cleaning power improving agent is one or two or more selected from fluorinated olefin polymer, boron nitride, molybdenum disulfide, graphite, fullerene or talc, and is effective for improving cleaning power.
  • the content of the detergency enhancer is preferably 0.01 to 10 parts by weight, more preferably 1 to 5 parts by weight based on 100 parts by weight of the elastic resin. If the content of the detergent enhancer is less than 0.01 parts by weight, the effect of improving the cleaning power is insignificant. If it is more than 10 parts by weight, the compatibility with the elastic resin is poor and the strength and elasticity of the elastic resin are weakened. May occur.
  • an additive or coating agent may include inorganic additives, antimicrobial additives, salt additives, whitening additives, vitamin additives and the like.
  • the inorganic additive may use any one or a mixture thereof selected from silicon dioxide, aluminum hydroxide, calcium carbonate, silica, bentonite clay, calcium phosphate, dicalcium phosphate or anhydrous calcium diphosphate, and the antimicrobial additive may be silver nano powder, platinum nano Powder, charcoal powder, TiO 2, TiON, fluorine or mixtures thereof may be used, but is not limited thereto.
  • salts, bamboo salt, pine salt, sea salt and the like can be used.
  • the above-described additive is added to the filament 100, in particular the core 110 to continuously dissolve a small amount every time you brush your teeth.
  • incorporating a pigment in the core 110 of the filament 100 or when applying a color change film may cause a user aesthetics.
  • the use of color-changing film over temperature can stimulate children's curiosity and help them enjoy brushing their teeth.
  • the sheath 120 forms a triangular pipe shape surrounding the outer shell of the core 110 and exists as an element for increasing the strength of the filament 100 to improve the durability of the bristles.
  • the sheath 120 is preferably a polyester resin, but more preferably polyethylene terephthalate, polybutylene terephthalate, polytrimethylene terephthalate, polycyclohexanedimethylene terephthalate may be used.
  • polyethylene terephthalate polybutylene terephthalate, polytrimethylene terephthalate, polycyclohexanedimethylene terephthalate may be used.
  • the strength of the filament 100 can be effectively improved.
  • the cleaning power may be reduced by the core 110 including the elastic resin.
  • the strength of the filament 100 may be reduced due to the rigid resin. It becomes higher than necessary, and there exists a possibility of damaging a gum by high strength.
  • the dual structure filament 100 including the core 110 of the elastic resin and the sheath 120 of the rigid resin, at least a part of the core 110 may be exposed to the outside.
  • the double-structured filament 100 has a structure in which at least a part of the core 110 is exposed to the outside of the sheath 120 so as to have high strength and excellent durability but flexibility and elasticity.
  • at least the core 110 and the filament 100 may have various structures as shown in FIGS. 1 to 4, which will be described in detail with reference to the accompanying drawings.
  • the core 110 has a triangular bar shape extending in one direction, and the sheath 120 surrounds the core 110 and has a relatively thick triangular cross section compared to the core 110. It is a pipe shape.
  • the core 110 penetrates the center of the sheath 120 and extends in the longitudinal direction, and has an inverted triangular cross section corresponding to the inside of the sheath 120, wherein each corner 111 of the core 110 is a sheath 120. ) It extends to the outside and is exposed to the outside.
  • the filament 100 of the above-described structure is the core of the elastic resin 110 and the rigid resin
  • sheath 120 includes all of the filaments 100 to have a strength of less than the reference value to prevent the gums from being damaged when brushing teeth.
  • the plaque may be effectively removed upon contact with the tooth.
  • the core 110 may have various forms, which will be described with reference to FIG. 2.
  • FIG. 2 is a plan view of a filament shown to explain an example of a core according to a preferred embodiment of the present invention.
  • the core 110 is embedded in the center of the sheath 120, and the edge 111 may be exposed to the outside of the sheath 120 as in each embodiment, or may be exposed to the outside.
  • Figure 2a shows the edge 111 of the core 110 is in contact with the outside of the sheath 120 exposed to the outside, which is an embodiment of the present invention.
  • FIG. 2b shows the shape of the edge 111 of the core 110 protruding from the outside of the sheath 120, which is another embodiment of the core 110, to effectively remove the plaque upon contact with the tooth. That is, since the edge 111 protruding from the outer sheath 120 has a predetermined coefficient of friction, the plaque can be effectively removed.
  • FIG. 2C illustrates a modification of the edge 111 protruding outside the sheath 120, and as shown, the edge 111 protrudes outside the sheath 120 as a friction protrusion 113 partially enclosing the outer edge thereof. May exist.
  • the friction protrusion 113 has a predetermined coefficient of friction, the plaque can be effectively removed when it comes in contact with the teeth, and in particular, since the cross section has a curved surface covering at least a part of the side surface of the sheath 120, The large contact area with the teeth allows for more effective removal of plaque. In this case, a plurality of irregularities may be further formed on the outer circumferential surface of the friction protrusion 113.
  • the core 110 may be recessed than the sheath 120 or may protrude as illustrated in FIGS. 3 and 4, which will be described with reference to the drawings.
  • FIG 3 is a perspective view showing an example of a filament according to an embodiment of the present invention.
  • the core 110 may protrude more than the sheath 120.
  • the core 110 uses a core 110 longer in length than the sheath 120 so as to protrude from the end of the sheath 120, that is, by the length, or sharply process one or both sides through processing. By doing so, the core 110 may protrude to the outside.
  • one or both ends of the filament 100 may be immersed in an alkaline or acidic solution, respectively, and processed as shown in FIGS. 3A and 3B.
  • the core 110 protrudes more than the sheath 120. At this time, although not shown at the end, the core 110 may be formed to have an unevenness, thereby improving cleaning power when brushing teeth.
  • 3b shows that the end is sharply processed, and since the core 110 having a predetermined coefficient of friction is exposed to the top, not only can the plaque be effectively removed upon contact with the teeth, but also the end is sharp, so that between interdentals, of course, In addition, desorption of foreign substances remaining in the gums is made easier.
  • the filament 100 may have a twisted shape as shown in Figure 4 between at least both ends.
  • Torsion of the filament 100 is made by processing or molding, and this torsion increases the strength and elasticity as the filament 100 to double the durability as bristles, and in particular, the restoring force can be maximized to maximize the effect on brushing. .
  • the filament 100 is twisted between both ends in the state that the processing is not applied as shown in Figure 4a, or twisted between both ends in the state that the end of the filament 100 is processed as shown in Figure 4b and c You can also
  • FIG. 4B is torsion applied in the form of FIG. 3A
  • FIG. 4C is torsion applied in the form of FIG. 3A.
  • the resilience is excellent in repetitive exercise, and as a result, it is possible to minimize the damage to prevent functional degradation, as well as long-term use can eventually minimize the economic loss due to toothbrush replacement.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Brushes (AREA)

Abstract

L'invention concerne un filament à double structure comprenant : une partie centrale en forme de barre triangulaire ; et une gaine au centre de laquelle la partie centrale est intégrée, la gaine ayant la forme d'un tuyau triangulaire inversé au centre duquel la partie centrale est intégrée. Le filament selon la présente invention comprend une partie centrale et une gaine constitués de matériaux différents, et présente une résistance et une durabilité élevées ainsi qu'une excellente flexibilité et une excellente élasticité, ce qui permet de réduire l'irritation et l'endommagement des gencives résultant du brossage des dents et de doubler l'efficacité de celui-ci.
PCT/KR2017/002353 2016-03-09 2017-03-03 Filament à double structure Ceased WO2017155252A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2016-0028309 2016-03-09
KR1020160028309A KR101826632B1 (ko) 2016-03-09 2016-03-09 이중 구조의 필라멘트

Publications (1)

Publication Number Publication Date
WO2017155252A1 true WO2017155252A1 (fr) 2017-09-14

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PCT/KR2017/002353 Ceased WO2017155252A1 (fr) 2016-03-09 2017-03-03 Filament à double structure

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WO (1) WO2017155252A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108004634A (zh) * 2018-01-15 2018-05-08 无锡恒盈新材料科技有限公司 一种聚乳酸彩色长竹节纱及其加工用并条装置和加工方法
CN112442758A (zh) * 2019-08-27 2021-03-05 晋江市达亿经编织造有限公司 一种tpee透明弹性单丝材料
US11246405B2 (en) * 2015-12-14 2022-02-15 Colgate-Palmolive Company Oral care implement and spiral bristle for use with the same

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0998837A (ja) * 1995-10-09 1997-04-15 Shiseido Co Ltd ブラシのブリッスル用繊維
JP2007283444A (ja) * 2006-04-18 2007-11-01 Yuichiro Niizaki ブラシ素材
JP2010082094A (ja) * 2008-09-30 2010-04-15 Sunstar Inc 歯ブラシ用フィラメント及びこれを植設した歯ブラシ
KR20130128960A (ko) * 2012-05-18 2013-11-27 비비씨 주식회사 이중구조 필라멘트 및 이를 이용한 칫솔
KR20150060661A (ko) * 2012-09-25 2015-06-03 라이온 가부시키가이샤 테이퍼 강모와 그 제조방법 및 테이퍼 강모를 구비한 칫솔

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10033256A1 (de) 2000-07-10 2002-01-24 Coronet Werke Gmbh Verfahren und Vorrichtung zur Herstellung von Borstenwaren sowie Borstenware

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0998837A (ja) * 1995-10-09 1997-04-15 Shiseido Co Ltd ブラシのブリッスル用繊維
JP2007283444A (ja) * 2006-04-18 2007-11-01 Yuichiro Niizaki ブラシ素材
JP2010082094A (ja) * 2008-09-30 2010-04-15 Sunstar Inc 歯ブラシ用フィラメント及びこれを植設した歯ブラシ
KR20130128960A (ko) * 2012-05-18 2013-11-27 비비씨 주식회사 이중구조 필라멘트 및 이를 이용한 칫솔
KR20150060661A (ko) * 2012-09-25 2015-06-03 라이온 가부시키가이샤 테이퍼 강모와 그 제조방법 및 테이퍼 강모를 구비한 칫솔

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11246405B2 (en) * 2015-12-14 2022-02-15 Colgate-Palmolive Company Oral care implement and spiral bristle for use with the same
CN108004634A (zh) * 2018-01-15 2018-05-08 无锡恒盈新材料科技有限公司 一种聚乳酸彩色长竹节纱及其加工用并条装置和加工方法
CN112442758A (zh) * 2019-08-27 2021-03-05 晋江市达亿经编织造有限公司 一种tpee透明弹性单丝材料

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KR101826632B1 (ko) 2018-02-07
KR20170105287A (ko) 2017-09-19

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