[go: up one dir, main page]

WO2019039784A1 - Poils de brosse à dents de polycétone et brosse à dents les utilisant - Google Patents

Poils de brosse à dents de polycétone et brosse à dents les utilisant Download PDF

Info

Publication number
WO2019039784A1
WO2019039784A1 PCT/KR2018/009301 KR2018009301W WO2019039784A1 WO 2019039784 A1 WO2019039784 A1 WO 2019039784A1 KR 2018009301 W KR2018009301 W KR 2018009301W WO 2019039784 A1 WO2019039784 A1 WO 2019039784A1
Authority
WO
WIPO (PCT)
Prior art keywords
sheath
polyketone
core portion
core
bristles
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/KR2018/009301
Other languages
English (en)
Korean (ko)
Inventor
강기태
박병재
안종진
김지현
안재범
서아영
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 WO2019039784A1 publication Critical patent/WO2019039784A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

Classifications

    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B9/00—Arrangements of the bristles in the brush body
    • A46B9/02—Position or arrangement of bristles in relation to surface of the brush body, e.g. inclined, in rows, in groups
    • A46B9/04—Arranged like in or for toothbrushes
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46D—MANUFACTURE OF BRUSHES
    • A46D1/00—Bristles; Selection of materials for bristles
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46D—MANUFACTURE OF BRUSHES
    • A46D1/00—Bristles; Selection of materials for bristles
    • A46D1/02—Bristles details
    • A46D1/0207—Bristles characterised by the choice of material, e.g. metal
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46D—MANUFACTURE OF BRUSHES
    • A46D1/00—Bristles; Selection of materials for bristles
    • A46D1/02—Bristles details
    • A46D1/0238—Bristles with non-round cross-section
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B2200/00—Brushes characterized by their functions, uses or applications
    • A46B2200/10—For human or animal care
    • A46B2200/1066—Toothbrush for cleaning the teeth or dentures

Definitions

  • the present invention relates to a polyketone bristle and a toothbrush using the same. Specifically, the present invention relates to a polyketone bristle having a double structure or a multiple structure including a polyketone resin, and a toothbrush using the same. More specifically, the present invention relates to a highly durable bristle brush using polyketone.
  • the toothbrush comprises a bristle, a head portion on which the bristles are put, and a handle portion connected to the head portion.
  • the bristles implanted in the head portion of the toothbrush not only have to have constant strength and elasticity, but also must be able to move easily along the tooth, which is the portion to be brushed.
  • bristles have been made of a material such as a polyester resin and a polyamide resin.
  • a material such as a polyester resin and a polyamide resin.
  • the bristles are worn by the user and the toothbrush is frequently replaced. Accordingly, there has been a demand for bristles having high durability, improved cleaning ability, and excellent flexibility.
  • the present invention also relates to a bristles of a composite structure having a double structure or a multiple structure by extruding a polyketone resin and a thermoplastic resin together to give flexibility to the bristles while using the rigidity and durability of the polyketone as they are,
  • the purpose is to provide.
  • the present invention expands the core part including the polyketone while the sheath part is worn out for a long period of use, so that the surface area is further increased by various forms of the core part, And to provide a toothbrush manufactured using the same.
  • Another object of the present invention is to provide a brush bristle including a functional additive and exhibiting various functions together, and a toothbrush using the bristle.
  • a polyolefin resin composition comprising a core portion extending in one direction and a sheath portion surrounding the core portion, wherein at least one selected from the core portion and the sheath portion comprises a polyketone resin. It is a ketone bristle.
  • a shape including a bar-shaped central portion passing through the inside of the sheath and a wing extending outward from the central portion, and a frictional protrusion formed at an end of the wing portion and protruding to the outside of the sheath portion
  • the wing portion in the b) mode, may be a plurality of wings extending to an edge of the sheath portion and disposed radially with respect to the center portion.
  • the friction protrusion in the above mode (c), may be formed to surround a part of the edge of the sheath portion.
  • the core portion and the sheath portion may each be selected from a circle, an ellipse, a dumbbell, a semi-circle, a fan, a gull, and a polygon.
  • the polygon may be selected from triangular, square, pentagonal, hexagonal, star, cross, and rhombic.
  • the core portion and the sheath portion may be made of different materials.
  • the core portion includes a polyketone resin
  • the sheath portion may include any one or two or more selected from a thermoplastic resin, a thermoplastic elastomer, and a rubber.
  • At least one selected from the core portion and the sheath portion may further comprise a functional material.
  • the functional material is selected from the group consisting of sodium carbonate powder, sodium hydrogen carbonate powder, natural extract, silver powder, gold powder, zeolite, carbon particles, ilite, bentonite, titanium oxide, antimicrobial agent, , bamboo salt powder, jade powder, volcanic clay powder, citrus charcoal powder, photocatalyst, pigment, and dye, or a mixture of two or more thereof.
  • the diameter of the sheath may be 0.02 to 0.3 mm, and the diameter ratio of the core and sheath may be 1: 1.2 to 1: 5.
  • the total length of the bristles may be 10 to 40 mm.
  • Another aspect of the present invention is a toothbrush comprising the polyketone bristles.
  • the present invention can provide a bristles having durability, abrasion resistance, heat resistance and chemical resistance as compared with bristles not containing a polyketone resin by providing a bristle composed of a composite structure of a double structure or a multiple structure including a polyketone resin have.
  • the sheath portion is exposed to expose the core portion, and the surface area can be further increased by various structures of the core portion. Therefore, the detergency is further increased as the polyketone resin is used.
  • the bristles are not warped even when used for a long period of time, so that the bristles are less likely to be widened, and the appearance of the bristles is excellent, and the use period of the bristles can be further extended.
  • Figure 1 through Figure 13 illustrate cross-sections of a bristle according to an aspect of the present invention.
  • the inventors of the present invention have made studies to improve the durability limit of conventional thermoplastic resins such as polyester resin and polyamide resin. As a result, they have found that by producing bristles using a polyketone resin, the cleaning power, durability, strength, abrasion resistance and chemical resistance Can be further improved. Further, it has been found that the cleaning power can be further improved by changing the color of the core portion and the sheath portion or by variously changing the shape of the core portion, and it is possible to provide more esthetic feeling and more pleasant toothbrushing. .
  • thermoplastic resin a thermoplastic elastomer and a rubber except for the polyketone resin and polyketone
  • the polyketone resin is contained in the core portion, and one or two or more selected from thermoplastic resin, thermoplastic elastomer and rubber except for polyketone is included in the sheath portion, whereby the polyketone resin of the core portion And the durability is further improved and the surface area is increased according to various forms of the core part, and the cleaning power can be further improved, thereby completing the present invention.
  • the present invention also relates to a core part comprising polyketone resins of various shapes and colors such as circular, elliptical, dumbbell, semicircular, fan, gull and polygonal, The bristles including the sheath portion and the toothbrush using the bristles can be completed.
  • One aspect of the present invention is a polyketone bristle brush comprising a core portion extending in one direction and a sheath portion surrounding the core portion, the polyketone bristles including a polyketone resin at least one selected from the core portion and the sheath portion, to be.
  • one embodiment of the present invention may include a polyketone resin in the core portion, a polyketone resin in the sheath portion, or a polyketone resin in the core portion and sheath portion.
  • the core portion and the sheath portion may be formed in various shapes and various colors such as circular, elliptical, dumbbell, semicircular, fan, gull, and polygonal, and may have the same or different shapes, And may be made of different colors.
  • a shape including a bar-shaped central portion passing through the inside of the sheath and a wing extending outward from the central portion, and a frictional protrusion formed at an end of the wing portion and protruding to the outside of the sheath portion
  • the core portion may be circular, oval, dumbbell, semicircular, fan, gull, polygonal, and the like, but is not limited thereto.
  • the polygons may include, but are not limited to, triangular, square, pentagonal, hexagonal, star, cross and rhombus.
  • the core is present in the form of an island in the inside of the sheath, and may be circular, oval, dumbbell, semicircle, fan, gull, polygon, or the like in cross section of the bristles But is not limited thereto.
  • the polygons may include, but are not limited to, triangular, square, pentagonal, hexagonal, star, cross and rhombus. 1 and 2
  • the core portion 10 may penetrate the center of the sheath portion 20, or may be formed so as to extend through the center of the sheath portion 20, as shown in FIG. 3, Through the inside of the sheath portion 20 at the position of the sheath portion 20. 4 and 5, at least two core portions 10 radially disposed from the center of the sheath portion 20 may be formed.
  • the core portion may be composed of one or more, more specifically 1 to 20, and more specifically, 2 to 6, but is not limited thereto.
  • the wing portion may be a plurality of wings extending to an edge of the sheath portion and disposed radially with respect to the center portion.
  • the central portion formed like the island may be circular, oval, dumbbell, semicircular, fan, gull, polygonal, and the like, but is not limited thereto.
  • the polygons may include, but are not limited to, triangular, square, pentagonal, hexagonal, star, cross and rhombus.
  • the wing portion may be formed as a straight line as shown in the drawing, or may be a bent or zigzag shape although not shown.
  • the c) shape when viewed from the cross section of the bristles, the c) shape is formed by a plurality of bristles extending from the central portion 11 formed in the interior of the sheath, And a friction protrusion 13 formed at an end portion of the wing portion and projecting to the outside of the sheath portion.
  • the friction protrusion may be formed to surround a part of the edge of the sheath.
  • the shape of the friction protrusions 13 is not limited, and by forming the friction protrusions, the area of contact with the teeth is increased, and the plaque can be more effectively removed.
  • the central portion formed like the island may be circular, oval, dumbbell, semicircular, fan, gull, polygonal, and the like, but is not limited thereto.
  • the polygons may include, but are not limited to, triangular, square, pentagonal, hexagonal, star, cross and rhombus.
  • the wing portion may be formed as a straight line as shown in the drawing, or may be a bent or zigzag shape although not shown.
  • the shape of the friction protrusions is not limited, and may be formed in various shapes such as a triangle shape and a circular shape.
  • one or two or more core portions selected from the above a) to c) may be combinedly formed.
  • the cross section of the sheath may be circular, oval, dumbbell-shaped, semicircular, fan-shaped, gull-like, polygonal, or the like. It is not.
  • the polygons may include, but are not limited to, triangular, square, pentagonal, hexagonal, star, cross and rhombus.
  • the core portion is made of a color different from that of the core portion, a variety of colors can be realized.
  • the diameter of the sheath may be 0.02 to 0.3 mm, and the diameter ratio D 1 : D 2 of the core and sheath may be 1: 1.2 to 5, more specifically 1: 1.2 to 2 And the bristles having excellent durability can be provided.
  • the present invention is not limited thereto.
  • the total length of the bristles may be 10 to 40 mm and is suitable for use as a bristle in the range, but is not limited thereto.
  • the core portion and the sheath portion may be made of different materials. More specifically, for example, the core portion may include a polyketone resin, and the sheath portion may include any one or two or more selected from a thermoplastic resin, a thermoplastic elastomer and a rubber except for a polyketone resin. As described above, when the resin is manufactured as described above, the core portion is exposed while the resin of the sheath is worn, so that the durability of the core portion by the polyketone resin can be exhibited, and the effect of further improving the cleaning power by various forms of the core portion .
  • the resin used for the sheath portion is not particularly limited as long as it is selected from a thermoplastic resin except for polyketone, an elastomer, rubber, or the like.
  • polyolefin-based resins such as polyethylene and polypropylene
  • Polyester resins such as polyethylene terephthalate, polybutylene terephthalate, polytrimethylene terephthalate and polycyclohexanedimethylene terephthalate
  • Biodegradable resins such as polylactic acid, polycaprolactone, polyhydroxy alkanoate, polybutylene succinate, and the like
  • Thermoplastic olefinic elastomers such as ethylene-? Olefin elastomer, propylene-?
  • Olefin elastomer propylene-hexene elastomer, propylene-octene elastomer and ethylene-propylene-diene elastomer; 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 elastomer A thermoplastic elastomer such as a styrene-based elastomer; And a thermoplastic elastomer such as a urethane-based thermoplastic elastomer; Polyamides such as nylon 6, nylon 66, and nylon 6/10; And halogenated polymers such as poly
  • the sheath portion may be made of a resin having a lower bending recovery rate than the core portion.
  • the bending recovery rate is the physical property measured by the toothbrush specification KS G3103 measurement method.
  • the polyketone resin used for the core part may be a ternary copolymer of ethylene, propylene and carbon dioxide.
  • "POKETONE” series produced by Hyosung Co., Ltd. is a product such as M230A, M330A, M620A.
  • Such a polyketone resin is not only excellent in durability and heat resistance, but also has high chemical resistance which shows excellent resistance to most chemicals, and abrasion resistance equivalent to that of polyacetal. Particularly, since it is hydrolyzable, it is very good because it does not cause decomposition due to long-term use.
  • the polyketone fiber produced by spinning the polyketone resin is applied to a toothbrush as in the present invention, since the polyketone resin is excellent in hydrolysis resistance, it is possible to improve the long-term storage stability of the toothbrush which is easily exposed to moisture And the durability and abrasion resistance are further improved.
  • the core portion and the sheath portion may further comprise a functional material in addition to the resin.
  • it may include a functional material only in the core portion, a functional material only in the sheath portion, or a functional material in both the core portion and the sheath portion.
  • they may include the same or different functional materials.
  • the amount thereof is not limited, but it may be 0.1 to 30% by weight, more specifically 0.5 to 10% by weight, of the weight of the bristles.
  • the functional material can be used without limitation as long as it is a material conventionally used in the field of bristles.
  • the functional material may be selected from the group consisting of sodium carbonate powder, sodium hydrogen carbonate powder, natural extract, silver powder, gold powder, zeolite, carbon particles, ilite, bentonite, titanium oxide, antimicrobial agent, whitening particles, Powder, jade powder, volcanic clay powder, citrus charcoal powder, photocatalyst, pigment, dye and the like, or a mixture of two or more thereof.
  • the mean particle size of the powder or particles contained in the functional material may be 0.001 to 10 ⁇ , but is not limited thereto.
  • a bristles which further has a pile effect, a cleaning effect and an antibacterial effect by further containing any one or two or more selected from the above-mentioned sodium carbonate powder and sodium hydrogen carbonate powder. Its content is preferably 1% by weight or less, more preferably 0.01 to 0.5% by weight, based on the weight of the bristles, but is not limited thereto.
  • the natural extracts may contain at least one selected from the group consisting of propolis, green tea, ginseng, red ginseng, herb, aroma, marigold, phytoncide, magnolia, black tea, visa tea, pine needles, wormwood, lotus flower, aloe, And at least one selected from the group consisting of jasmine, camellia, camellia, ginkgo leaf, peppermint, corn, gingerbread, gossam, licorice, centrum, chamomile, lattania, rosemary, basil and silkworm It is not.
  • the content thereof is preferably 1% by weight or less, more preferably 0.01 to 0.5% by weight, but is not limited thereto.
  • a pigment or a dye may be added to give a visual effect.
  • the content of the pigment is preferably 1% by weight or less, more preferably 0.01 to 0.5% by weight, but not limited thereto.
  • the bristles may be manufactured by melt-kneading and co-extruding a resin used for a core part and a sheath part by using a multiple extrusion method.
  • it can be produced by extruding and extruding a core resin composition containing polyketone and a sheath resin composition containing other resin except for polyketone by multi-extrusion. That is, it may include a melt extrusion step, an extrusion spinning step, and a cooling and stretching step.
  • the extruder may be introduced into an extruder heated to 200 to 300 ° C.
  • various extruders such as a twin-screw extruder are injected into a multi-mold die to produce a core- Can be manufactured.
  • the melt extruded resin is extruded and spun using a nozzle to form a yarn.
  • the melt-extruded resin is melt-extruded in an extruder, and the melt-extruded melt is metered in a spin pack having a die plate, and extruded and radiated through a nozzle of the die plate, And yarns of size can be produced.
  • the cross-sectional shape of the yarn is determined by the shape of the die plate nozzle and may have various shapes such as a circle, an ellipse, a rectangle, a triangle, a regular polygon, a dumbbell, a cross, a disk, a gull, a rectangle, a diamond, That is, a core-sheath double-layered structure having a core portion and a sheath portion.
  • the extruded yarn is cooled and then stretched to form a core-sheath structure conjugate fiber.
  • the extruded raw yarn is discharged from the die plate, cooled in a water bath, and then transported to a stretching roll, stretched to 3 to 20 times its original length, and then wound. It is also heat treated as needed to remove stress.
  • the shape of the core and sheath of the bristles of the present invention or the structure having a structure extending from the inside of the composite fiber to the sheath surface or protruding from the core to the surface of the sheath layer may be formed by the structure of the mold, Which is not described here.
  • the toothbrush was measured by the measuring method according to KS G3103.
  • a polyketone resin (POKETONE M230A, manufactured by Hyosung Co., Ltd.) was melt-extruded and stretched in the same manner as in Example to prepare a single filament having a thickness of 0.8 mm.
  • the bending recovery rate was 45%.
  • Polyamide (Zytel) was melt-extruded and stretched in the same manner as in Example to prepare a single filament having a thickness of 0.8 mm, and the flexural recovery was measured and found to be 44%.
  • Table 1 below shows the flexural recovery rates for bristles of the core-sheath type in the examples and the comparative examples.
  • the strength and elongation of the bristles were measured by the measuring method according to KS K0412 using a universal material testing machine.
  • the durability of the bristles is a wearing test for measuring the wringing of the bristles.
  • the toothbrush is repeatedly reciprocated twice at a rate of 2 times per second to the same irregular shape as that of the tooth.
  • the evaluation criteria are as follows.
  • the mixture was melt-extruded at a temperature of 245 ⁇ ⁇ using 99.9% by weight of a polyketone resin (manufactured by Hyosung Corporation, POKETONE M230A) and 0.1% by weight of a red pigment and melt extruded from a polyketone resin (POKETONE M230A ) 99.9% by weight and a white pigment of 0.1% by weight were melt-extruded at 245 DEG C and co-extruded from a die having a mold structure as shown in Fig. 1 to extrude and spun the core-sheath filaments. Thereafter, the yarn was cooled to 10 DEG C and stretched at 180 DEG C to prepare a filament having a total thickness of 0.2 mm. The diameter of the core portion was 0.1 mm. This was cut to a length of 30 mm to prepare a bristle.
  • a polyketone resin manufactured by Hyosung Corporation, POKETONE M230A

Landscapes

  • Brushes (AREA)
  • Multicomponent Fibers (AREA)

Abstract

La présente invention concerne des poils de brosse à dents de polycétone et une brosse à dents les utilisant. De façon spécifique, la présente invention concerne des poils de brosse à dents de polycétone à structure complexe ayant une structure double ou une structure multiple grâce à l'incorporation d'une résine de polycétone, ainsi qu'une brosse à dents les utilisant. Plus spécifiquement, la présente invention concerne des poils de brosse à dents hétéro-structurés hautement durables utilisant une polycétone.
PCT/KR2018/009301 2017-08-24 2018-08-14 Poils de brosse à dents de polycétone et brosse à dents les utilisant Ceased WO2019039784A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020170107003A KR20190021786A (ko) 2017-08-24 2017-08-24 폴리케톤 칫솔모 및 이를 이용한 칫솔
KR10-2017-0107003 2017-08-24

Publications (1)

Publication Number Publication Date
WO2019039784A1 true WO2019039784A1 (fr) 2019-02-28

Family

ID=65439014

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2018/009301 Ceased WO2019039784A1 (fr) 2017-08-24 2018-08-14 Poils de brosse à dents de polycétone et brosse à dents les utilisant

Country Status (2)

Country Link
KR (1) KR20190021786A (fr)
WO (1) WO2019039784A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US12096844B2 (en) 2020-12-21 2024-09-24 Church & Dwight Co., Inc. Bristles having oral care additives contained therein and associated methods of manufacture

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20240082013A (ko) * 2022-12-01 2024-06-10 주식회사 엘지생활건강 이중 구조를 갖는 칫솔모 및 이를 포함하는 칫솔

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0652556U (ja) * 1993-01-11 1994-07-19 ライオン株式会社 歯ブラシ
JP2012228304A (ja) * 2011-04-25 2012-11-22 Toray Monofilament Co Ltd 歯ブラシ用毛材および歯ブラシ
KR101401023B1 (ko) * 2012-10-04 2014-05-29 비비씨 주식회사 칫솔모 제조방법 및 이를 이용한 칫솔
KR20150060661A (ko) * 2012-09-25 2015-06-03 라이온 가부시키가이샤 테이퍼 강모와 그 제조방법 및 테이퍼 강모를 구비한 칫솔
KR20170049679A (ko) * 2015-10-27 2017-05-11 비비씨 주식회사 이중 구조 필라멘트

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0652556U (ja) * 1993-01-11 1994-07-19 ライオン株式会社 歯ブラシ
JP2012228304A (ja) * 2011-04-25 2012-11-22 Toray Monofilament Co Ltd 歯ブラシ用毛材および歯ブラシ
KR20150060661A (ko) * 2012-09-25 2015-06-03 라이온 가부시키가이샤 테이퍼 강모와 그 제조방법 및 테이퍼 강모를 구비한 칫솔
KR101401023B1 (ko) * 2012-10-04 2014-05-29 비비씨 주식회사 칫솔모 제조방법 및 이를 이용한 칫솔
KR20170049679A (ko) * 2015-10-27 2017-05-11 비비씨 주식회사 이중 구조 필라멘트

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US12096844B2 (en) 2020-12-21 2024-09-24 Church & Dwight Co., Inc. Bristles having oral care additives contained therein and associated methods of manufacture

Also Published As

Publication number Publication date
KR20190021786A (ko) 2019-03-06

Similar Documents

Publication Publication Date Title
TWI513431B (zh) Toothbrush with the core of the composite wire and the use of its toothbrush
WO2014054911A2 (fr) Procédé de fabrication de poils sur une brosse à dents et brosse à dents l'utilisant
ES2229391T3 (es) Seda dental.
CA2116115C (fr) Matrices a liberation progressive pour applications dentaires
EP2695542B1 (fr) Filament pour maquillage, matériau pour pinceau à maquillage utilisant ledit filament, pinceau à maquillage utilisant ledit matériau
CN1308500A (zh) 构造化制品
US8512611B2 (en) Manufacturing method of toothbrush filaments using power toothbrush and toothbrush using thereof
WO2019039784A1 (fr) Poils de brosse à dents de polycétone et brosse à dents les utilisant
WO2019039785A1 (fr) Poils de brosse à dents fins et leur procédé de fabrication
KR101383667B1 (ko) 이중구조 필라멘트 및 이를 이용한 칫솔
WO2018062791A1 (fr) Poils de brosse à dents en polycétone, et brosse à dents les comprenant
KR101401023B1 (ko) 칫솔모 제조방법 및 이를 이용한 칫솔
WO2017179812A1 (fr) Filament en spirale et brosse à dents l'utilisant
KR101998281B1 (ko) 분기형 칫솔모 및 이의 제조 방법
TWI473599B (zh) 彈性體牙線
JP5857398B2 (ja) 歯ブラシ
US20020189041A1 (en) Polyurethane bristles
KR101201517B1 (ko) 코어-쉘 구조를 갖는 칫솔모 및 그의 제조방법
WO2017155254A1 (fr) Filament à structure double
WO2017155252A1 (fr) Filament à double structure
WO2020091308A1 (fr) Matrice de mélange maître fonctionnelle et procédé de préparation de filament fonctionnel l'utilisant
WO2024010305A1 (fr) Soie fabriquée à partir d'une résine à base de polyester comprenant de l'oxyde de graphène réduit et son procédé de fabrication
JPH0819569B2 (ja) 導電性ブラシ用毛材
KR101929822B1 (ko) 폴리케톤 섬유 및 그 제조 방법과, 이를 이용한 칫솔 및 그 항균 필터
KR102214841B1 (ko) 다중 미세 칫솔모 제조 장치

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 18848366

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 18848366

Country of ref document: EP

Kind code of ref document: A1