WO2017155253A1 - Filament à structure double - Google Patents

Filament à structure double Download PDF

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Publication number
WO2017155253A1
WO2017155253A1 PCT/KR2017/002354 KR2017002354W WO2017155253A1 WO 2017155253 A1 WO2017155253 A1 WO 2017155253A1 KR 2017002354 W KR2017002354 W KR 2017002354W WO 2017155253 A1 WO2017155253 A1 WO 2017155253A1
Authority
WO
WIPO (PCT)
Prior art keywords
filament
core
sheath
dual structure
double
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/KR2017/002354
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 WO2017155253A1 publication Critical patent/WO2017155253A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46D—MANUFACTURE OF BRUSHES
    • A46D1/00—Bristles; Selection of materials for bristles
    • 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
    • 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

Definitions

  • the present invention relates to a filament used as bristles, and more particularly, to a filament of a dual structure in which the core forming the center of the filament and the sheath forming the outer sheath 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.
  • the present invention for achieving the above object is a core (core) to form a bar; A sheath in which the core is embedded in a central portion thereof; The core has a central portion having a circular rod shape. Disclosed is a dual structure filament comprising at least one wing radially formed outside the central portion.
  • the wing is preferably exposed to the outside through the outside of the sheath.
  • the core further includes a friction protrusion formed at the wing end to protrude out of the sheath.
  • the friction protrusion, the outer surface is made of a curved surface, it is preferable that the elongated formed along the sheath.
  • the said filament has at least the edge part of the sheath and the said sheath and the core being sharply formed.
  • the blades are disposed radially in the form of spirals along the longitudinal direction of the central portion.
  • the filament has a shape in which at least one of both ends selected from the sheath and the core is twisted in the longitudinal direction.
  • the sheath is any one of a bar selected from a circle and a polygon, and in the case of a circle, the diameter ratio of the core has a ratio of 1: 1 to 5, and the length ratio of the core and the blade is 1 : It is preferable that it is 1-5.
  • 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.
  • 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.
  • FIG. 1 is a perspective view for explaining a filament according to an embodiment of the present invention
  • FIG. 2 is a plan view illustrating an example of a coil according to an exemplary embodiment of the present invention
  • FIG. 3 is a plan view showing an example of a sheath according to a preferred embodiment of the present invention.
  • FIG. 4 is a perspective view illustrating an example of a filament according to an embodiment of the present invention.
  • FIG. 5 is a perspective view illustrating another example of the filament according to the preferred 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 is intended to prevent gums from being damaged when brushing by giving flexibility and elasticity as bristles at the center of the filament 100.
  • 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 be further added to the 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.
  • 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 elute a small amount each time you brush your teeth.
  • the sheath 120 surrounds 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 5, which will be described in detail with reference to the accompanying drawings.
  • the filament 100 includes a core 110 that gives the filament 100 flexibility and elasticity at its center and a sheath 120 to increase durability at the outer edge thereof to increase durability. do.
  • the core 110 is embedded in the center of the sheath 120, and includes a central portion 111 forming a circular bar shape, a plurality of wings 113 formed radially outside the central portion 111, the wings 113 The end portion extends to the outer circumferential surface of the sheath 120 and is exposed to the outside.
  • the core 110 has a predetermined ratio with the sheath 120, through which can maximize the effect of the brushing, a description thereof will be described with reference to FIG.
  • FIG. 2 is a plan view showing an example of a core according to a preferred embodiment of the present invention.
  • the diameter ratio D1: D2 of the core 110 and the sheath 120 is preferably 1: 1 to 5.
  • the diameter ratio of the core 110 and the sheath 120 is less than 1: 1, the strength may be high, and the gums may be damaged. If the diameter ratio of the core 110 and the sheath 120 exceeds 1: 5, the elasticity may be greater. This raises the possibility of lowering the cleaning power.
  • the filament 100 preferably has a ratio of the diameter of the core 110 and the sheath 120 in a ratio of 1: 1 to 5, which causes the filament 100 to have an optimal strength and elasticity through an appropriate diameter ratio. Because it is maintained.
  • the diameter ratio of the core 110 and the length ratio (D1: L) of the blade 113 is preferably 1: 1 to 5, which is the blade 113 is extended to the outer peripheral surface of the sheath 120 to the sheath 120 It is to be exposed to the outside of) but not to protrude further.
  • At least the length of the wing 113 can be formed longer than D1, as well as it can lead to a synergistic effect, which is shown in Figure 2b and c showing an example of the core 110 This will be described with reference to.
  • FIG. 2B is for explaining an example of the wing 113, the wing 113 is formed longer than D2 as shown, the end of which protrudes outside the sheath 120.
  • the wing 113 may be further formed with a friction protrusion 115 at the protruding end as shown in Figure 2c.
  • the friction protrusion 115 is made of a curved outer surface, it is present in the form surrounding the outer portion along the longitudinal direction of the sheath 120.
  • the friction protrusions 115 allow the plaque to be efficiently removed by expanding the contact area with the teeth and increasing the coefficient of friction. At this time, although not shown in the outer portion of the friction protrusion 115, a plurality of irregularities may be further formed, which may double the friction coefficient and plaque removal efficiency.
  • the sheath 120 may exist in various forms as shown in FIG. 3 as a wrapping form of the core 110, which will be described with reference to FIG. 3.
  • FIG. 3 is a plan view illustrating an example of a sheath according to an embodiment of the present invention.
  • the sheath 120 surrounds the core 110 and is not limited in shape. Therefore, as shown in FIG. 2, a shape of a plane or a longitudinal section such as a triangle, a quadrangle as in FIG. 3B, a pentagon as in FIG. 3C, and the like may be variously formed.
  • the number of the wings 113 may be limited according to the shape of the sheath 120 as the core 110. That is, in the case of a triangular, it is preferable that the three wings are arranged radially with respect to the central portion 111 so as to correspond to the center orthogonal to each side, it is very preferable that four in the case of quadrangular and five in the case of five-angle.
  • the number of wings 113 is not limited to the figure, and may be arranged daily, in particular, if the sheath 120 is circular, as shown in Figure 2 selectively multiple depending on the strength and elasticity (for example, 1 To 10).
  • the core 110 may be recessed than the sheath 120 or may protrude as illustrated in FIGS. 4 and 5, which will be described with reference to the drawings.
  • FIG. 4 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 is a step by the length, that is, by using a core 110 longer than the sheath 120 so as to protrude from the end of the sheath 120, or by processing at least one side sharply by processing
  • the core 110 may protrude to the outside.
  • one or both ends of the filament 100 may be dipped in an alkali or acidic solution, respectively, and processed as shown in FIGS. 4A and 4B.
  • the core 110 protrudes more than the sheath 120. At this time, although not illustrated at the end, the core 110 may improve the cleaning power when brushing the teeth.
  • the filament 100 may have a twisted shape as shown in Figure 5 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 torsion is preferably generated or generated in at least one of the core 110 and the sheath 120, at least the wings are arranged in the form of a spiral along the longitudinal direction of the central portion 111, or by the wing 113 may be twisted in the form of a spiral.
  • the filament 100 has a shape in which the end of the filament 100 is twisted in the longitudinal direction between at least one end selected from the sheath 120 and the core 110 in the state that the end machining is not applied, or the wing 113 may be arranged in the form of a spiral.
  • the filament 100 may be a twisted form between the two ends in the state (sharply) processing the end, as shown in Figure 5b, or may be arranged sharply the blade 113 is arranged in the form of a spiral.
  • the processing may be processed to bend the corner region (boundary and side boundaries) as well as sharp processing as shown, which is preferably processed selectively according to the brushing effect.

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

Abstract

L'invention concerne un filament à structure double comprenant : un noyau en forme de barre; et une gaine au centre de laquelle le noyau est intégré, le noyau comprenant une partie centrale en forme de barre circulaire et une ou plusieurs ailes radiales autour du périmètre de la partie centrale. Le filament selon la présente invention comprend un noyau 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 provoqués par le brossage des dents et de doubler son efficacité.
PCT/KR2017/002354 2016-03-09 2017-03-03 Filament à structure double Ceased WO2017155253A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020160028312A KR101826720B1 (ko) 2016-03-09 2016-03-09 이중 구조의 필라멘트
KR10-2016-0028312 2016-03-09

Publications (1)

Publication Number Publication Date
WO2017155253A1 true WO2017155253A1 (fr) 2017-09-14

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ID=59789705

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Application Number Title Priority Date Filing Date
PCT/KR2017/002354 Ceased WO2017155253A1 (fr) 2016-03-09 2017-03-03 Filament à structure double

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KR (1) KR101826720B1 (fr)
WO (1) WO2017155253A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3782579B1 (fr) * 2018-04-27 2025-03-26 Kobayashi Pharmaceutical Co., Ltd. Outil de nettoyage interdentaire

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019098426A1 (fr) * 2017-11-17 2019-05-23 남윤식 Brosse à dents comportant des poils à protubérances fines, et son dispositif de fabrication
CN112107111B (zh) * 2020-09-15 2022-12-09 浦江中创新材料科技有限公司 刷丝的生产设备

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001169827A (ja) * 1999-12-16 2001-06-26 Lion Corp 歯ブラシ
KR100294902B1 (ko) * 1994-06-18 2001-10-24 구광시 폴리에스테르분할형복합사
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
KR100294902B1 (ko) * 1994-06-18 2001-10-24 구광시 폴리에스테르분할형복합사
JP2001169827A (ja) * 1999-12-16 2001-06-26 Lion Corp 歯ブラシ
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 (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3782579B1 (fr) * 2018-04-27 2025-03-26 Kobayashi Pharmaceutical Co., Ltd. Outil de nettoyage interdentaire
US12471696B2 (en) 2018-04-27 2025-11-18 Kobayashi Pharmaceutical Co., Ltd. Interdental cleaning tool

Also Published As

Publication number Publication date
KR101826720B1 (ko) 2018-02-07
KR20170105288A (ko) 2017-09-19

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