CN117223964A - Polyketone-made toothbrush bristle and toothbrush comprising same - Google Patents

Polyketone-made toothbrush bristle and toothbrush comprising same Download PDF

Info

Publication number
CN117223964A
CN117223964A CN202311459770.8A CN202311459770A CN117223964A CN 117223964 A CN117223964 A CN 117223964A CN 202311459770 A CN202311459770 A CN 202311459770A CN 117223964 A CN117223964 A CN 117223964A
Authority
CN
China
Prior art keywords
toothbrush
polyketone
bristles
salt
bristle
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.)
Withdrawn
Application number
CN202311459770.8A
Other languages
Chinese (zh)
Inventor
朴美静
河沅昊
李京燮
李钟勋
柳慧珠
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.)
LG H&H Co Ltd
Original Assignee
LG Household and Health Care 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 LG Household and Health Care Ltd filed Critical LG Household and Health Care Ltd
Publication of CN117223964A publication Critical patent/CN117223964A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • AHUMAN NECESSITIES
    • A46BRUSHWARE
    • A46DMANUFACTURE OF BRUSHES
    • A46D1/00Bristles; Selection of materials for bristles
    • A46D1/02Bristles details
    • A46D1/0207Bristles characterised by the choice of material, e.g. metal
    • AHUMAN NECESSITIES
    • A46BRUSHWARE
    • A46BBRUSHES
    • A46B9/00Arrangements of the bristles in the brush body
    • A46B9/02Position or arrangement of bristles in relation to surface of the brush body, e.g. inclined, in rows, in groups
    • A46B9/04Arranged like in or for toothbrushes
    • AHUMAN NECESSITIES
    • A46BRUSHWARE
    • A46DMANUFACTURE OF BRUSHES
    • A46D1/00Bristles; Selection of materials for bristles
    • AHUMAN NECESSITIES
    • A46BRUSHWARE
    • A46DMANUFACTURE OF BRUSHES
    • A46D1/00Bristles; Selection of materials for bristles
    • A46D1/02Bristles details
    • A46D1/0276Bristles having pointed ends
    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01FCHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F6/00Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
    • D01F6/02Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01FCHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F6/00Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
    • D01F6/02Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D01F6/26Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds from other polymers
    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01FCHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F6/00Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
    • D01F6/28Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from copolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D01F6/30Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from copolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds comprising olefins as the major constituent
    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01FCHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F6/00Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
    • D01F6/96Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from other synthetic polymers
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06MTREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M13/00Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
    • D06M13/10Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing oxygen
    • D06M13/12Aldehydes; Ketones
    • D06M13/123Polyaldehydes; Polyketones
    • AHUMAN NECESSITIES
    • A46BRUSHWARE
    • A46BBRUSHES
    • A46B2200/00Brushes characterized by their functions, uses or applications
    • A46B2200/10For human or animal care
    • A46B2200/1066Toothbrush for cleaning the teeth or dentures
    • DTEXTILES; PAPER
    • D10INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10BINDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2321/00Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D10B2321/02Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polyolefins
    • DTEXTILES; PAPER
    • D10INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10BINDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2331/00Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
    • D10B2331/06Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyethers
    • D10B2331/061Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyethers polyetherketones, polyetheretherketones, e.g. PEEK
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/29Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2913Rod, strand, filament or fiber

Abstract

The present application relates to a polyketone-made toothbrush bristle and a toothbrush comprising the same, which improves the manufacture of bristles from a polyketone material having high rigidity, high elasticity and high abrasion resistance, thereby providing a toothbrush with reduced bristle expansibility and increased life. The bristles made of polyketone according to the present application have excellent elasticity and are suitable for removal of dental plaque on tooth surfaces having a large number of curved surfaces, and particularly, when fine bristles are formed, interdental plaque which cannot be removed well by the conventional toothbrushes can be effectively removed.

Description

Polyketone-made toothbrush bristle and toothbrush comprising same
The application relates to a divisional application, the international application number of the original application is PCT/KR2017/010558, the international application date is 2017, 09 and 25 days, the Chinese national application number is 201780057212.5, the entering date of the Chinese national stage is 2019, 03 and 18 days, and the application is named as a polyketone-made toothbrush bristle and a toothbrush comprising the toothbrush bristle.
Technical Field
The present application claims priority based on korean application No. 10-2016-0125803, which was filed in the year 2016, 9 and 29, and korean application No. 10-2017-0089694, which was filed in the year 2017 and 7, and the entire contents of the disclosures of the respective applications and the accompanying drawings are incorporated herein.
The application relates to a polyketone toothbrush bristle and a toothbrush (Polyketone Bristles and Toothbrush Having the Bristles) comprising the same.
More particularly, the present application relates to a toothbrush bristle made of a polyketone material having high rigidity, high elasticity and high abrasion resistance, thereby having reduced bristle expansibility and increased life span, and a toothbrush comprising the same.
In addition, since the unit price of the polyketone material is lower than that of nylon or polyester-based polymer, particularly polybutylene terephthalate (PBT), which is mainly used as bristles, bristles can be provided at a low cost.
Background
Toothbrushes are tools for cleaning the oral cavity including teeth and gums, and are composed of handles and bristles, wherein the bristles are generally manufactured using synthetic resins having elasticity.
The general toothbrush bristle is mainly made of nylon or polyester-based polymer such as polyethylene terephthalate (PET), polytrimethylene terephthalate (PTT), polybutylene terephthalate (PBT), etc.
Nylon has the advantage of proper flexibility, but has a short life, low strength, and needs to have a degree of coarseness or more because of its strong water absorption, while polyester-based bristles have poor flexibility. When such conventional bristles are used, the bristles are required to be replaced because the bristles are expanded in one month or more and three months.
Particularly, since fine bristles made of a polyester polymer such as PBT are tapered at the tips of the bristles, the bristles are more early expanded and worn, and thus it is necessary to frequently replace the toothbrush.
Various references are cited throughout this specification and are shown. The disclosures of the cited documents are incorporated by reference into this specification in their entireties in order to better illustrate the level of skill in the art to which the present application pertains and the contents of the present application.
Disclosure of Invention
Technical problem
The present inventors have made research efforts to solve the problem of conventional nylon and polyester-based (PBT etc.) bristles expanding, and in particular, to solve the problem of bristle expanding and abrasion occurring more rapidly at tapered ends in the case of fine bristles having tapered ends, and have completed the present application by producing bristles having high rigidity, high elasticity and high abrasion resistance using a polyketone material.
It is therefore an object of the present application to provide a toothbrush bristle comprising polyketone (polyketone).
It is another object of the present application to provide a toothbrush comprising the above-mentioned bristles.
Other objects and advantages of the present application will become more apparent from the following detailed description of the application, the claims and the accompanying drawings.
Means for solving the problems
It is an aspect of the present application to provide a toothbrush bristle comprising polyketone.
The final goal of brushing is to minimize gum damage while maximizing tooth cleaning forces. In general, the smaller the damage to the gums, the lower the cleaning force to the teeth, and there is a problem that the damage to the gums is accompanied when a high-rigidity material is used for the purpose of improving the cleaning force. In the course of the present inventors' research and efforts to solve the above problems, it has surprisingly been found that: when the polyketone resin is used for bristles, plaque (plaque) can be excellently removed while gum irritation is hardly generated due to the characteristics of high strength and high elasticity thereof.
Polyketone resins are novel resins developed in recent years, synthesized from carbon monoxide and olefins, and their mechanical and physical properties fall into the category of high-performance plastics. U.S. Pat. No. 4,843,144 discloses linear alternating polymers synthesized from olefins such as ethylene and propylene and carbon monoxide. The polyketone resin used in this patent has excellent impact resistance, high rebound resilience at both room temperature and low temperature, and excellent creep characteristics.
In the bristles of the present application, as the polyketone, polyketone having a basic structure including carbon monoxide and olefin may be used.
The polyketone may be a copolymer of carbon monoxide and ethylene or a terpolymer of carbon monoxide, ethylene and propylene.
In addition, the polyketone component may be represented by the following chemical formula:
in the chemical formula, x and y are 1:10-10:1.
In the present application, the polyketone polymer for bristles may have a linear alternating structure, and may have a structure in which each unsaturated hydrocarbon molecule contains substantially carbon monoxide. The ethylenically unsaturated hydrocarbon compounds which can be used as precursors for polyketone polymers can have from 1 to 20 carbon atoms, preferably from 1 to 10 carbon atoms. More preferably, the above-mentioned ethylenically unsaturated hydrocarbon compound may be ethylene or an α -olefin (for example, propylene (propene), 1-butene (butene), isobutylene (iso-butene), 1-hexene (hexene), 1-octene (octene)).
Further, as the polyketone resin, use may be made of: polyketone resins prepared by the liquid phase polymerization of carbon monoxide and olefins using an alcohol solvent in the presence of a catalyst composition comprising a palladium compound. In this case, the polymer is recovered by filtration and extraction after polymerization, and the residual catalyst composition is removed with a solvent such as alcohol or acetone.
In one embodiment of the present application, the bristles may be made of a polyketone (polyketone) material.
In another embodiment, the bristles may further include one or more water-insoluble polymer substances selected from the group consisting of polypropylene, polyethylene terephthalate, polybutylene terephthalate, polypropylene terephthalate, polyurethane, and nylon components.
For example, the toothbrush bristle of the present application may include: a polyketone blend (blend) prepared by mixing a linear alternating polymer composed of carbon monoxide and at least one ethylene-based unsaturated hydrocarbon with one or more water-insoluble polymer materials listed above.
The above-mentioned water-insoluble polymer is a substance used for producing conventional bristles, and among them, nylon has excellent heat resistance, elasticity and strength, but has high water absorption, and thus has disadvantages of changing physical properties and dimensions. In particular, there is a disadvantage that impact resistance varies upon moisture absorption, and as a method for improving the disadvantage, polyketone and nylon may be mixed and used as the bristle material of the present application.
The polyketone mixture may contain 60 to 80% by weight of the linear alternating polyketone polymer and 20 to 40% by weight of the one or more water-insoluble polymer substances.
In the polyketone mixture, the mixing ratio of the polyketone and the one or more water-insoluble polymer substances may be 9:1 to 7:3 by weight.
The polyketone mixture may be prepared by mixing the individual components after melting at high temperature, in which case antioxidants, UV stabilizers and other additional components may also be mixed.
In another embodiment, the bristles may further comprise an active ingredient selected from the group consisting of anti-inflammatory antibacterial agents, whitening agents, dental acid moderators, tartar prevention agents, flavoring agents, bad breath removing agents, gingival health agents, anticaries agents, oral cleaning agents, xylitol, bamboo salts, sea salts, preparation salts, refined salts, loose salts, boiled salts, molten salts, processed salts, and phosphates, which is beneficial to dental health.
Thus, if the bristles further contain ingredients that are beneficial to dental health, the ingredients that are beneficial to dental health are released by brushing pressure and moisture during brushing, and these ingredients act on the teeth or gums, thereby contributing to the prevention of various oral diseases such as antibacterial, antiinflammatory, anti-inflammatory, tartar prevention, and odontoseisis prevention.
In addition, the bristles of the present application may be formed in the shape of fine bristles.
In the case of fine bristles, since the bristles are soft, the bristles easily reach corners in the mouth, and thus, there is an advantage in that corner portions, which are difficult to brush, are easily cleaned, particularly, between teeth and gums. In contrast, with respect to general fine bristles, bristles are easily worn or ends are easily bent, and thus, there is a need for eachThe disadvantage of replacement once a month. Therefore, it is necessary to simultaneously develop a study for improving durability of bristles, particularly fine bristles.
The polyketone fine bristles of the present application have advantages of high rigidity, high elasticity and high abrasion resistance, and thus have advantages of being able to maintain an initial state during use.
In an embodiment of the present application, the bristles may be formed in a general bristle shape having the same bristle diameter and tip diameter and having tips formed in a circular arc shape, or in a needle-like fine bristle shape having tapered tip width.
In the case of a conventional bristle type, the diameter may be 0.1mm to 0.13mm, and in the case of a fine bristle type, the diameter may be super fine bristles having a tip diameter of 0.02mm or less or 0.01mm or less.
Compared with the common toothbrush hair with the diameter of 0.16-0.20 mm, the common toothbrush hair with the diameter of 0.1-0.13 mm can be densely embedded with more than three times of common toothbrush hair, so that the toothbrush has good elasticity and soft touch feeling, has good cleaning effect on teeth and gums, has good massaging effect, and can simultaneously realize two functions of tooth cleaning and gum massaging which cannot be realized by the common toothbrush. In the case of fine bristles having a bristle tip diameter of 0.02mm or less, since they are thinner than general gaps between teeth and gums, it is easier to clean plaque between teeth and gums, and gingivitis can be effectively prevented.
The bristles of the present application can be manufactured by a method of manufacturing fine bristles having both ends thereof made thin in advance and then implanting the bristles in a "V" shape into a toothbrush head.
For the implanted bristles, the length of the implant, i.e., the distance from the upper end surface of the head to the brush Mao Jianduan after implantation, may be 5mm to 25mm, but is not limited thereto.
The total length of the implanted fine hair may beOr->The thickness may be +.> The length of the implant part can be +.>High fine hair from the upper end of the implanted face of the toothbrush after implantationThe degree may beBut is not limited thereto.
The toothbrush bristle made of polyketone has excellent elasticity, is suitable for removing dental plaque on tooth surfaces with a plurality of curved surfaces, and can effectively remove dental plaque on tooth surfaces and among teeth which cannot be removed well by the conventional toothbrush.
In addition, in the course of brushing teeth repeatedly every day, appropriate gum massage can be performed without gum stimulation or bleeding, and a massage effect advantageous to tooth and gum health can be obtained without additional time and effort, so that tooth health can be continuously managed.
Another aspect of the present application is to provide a toothbrush comprising the above polyketone bristles.
In one embodiment, the toothbrush of the present application is manufactured by manufacturing a toothbrush head from polyketone bristles and an elastic member of rubber, silica gel, etc., so that a product capable of giving physical cleaning and gum massaging effects upon brushing teeth is manufactured.
In another embodiment, the toothbrush of the present application may be manufactured to include: a handle portion having a predetermined thickness and width; a brush head connected to the handle; a polyketone toothbrush bristle formed on the upper surface of the brush head; and a tip provided on the brush head.
The toothbrush of the present application may be manufactured to have more than two bristles made of different materials.
For example, the toothbrush of the present application may include: a handle portion having a predetermined thickness and width; a brush head connected to the handle; a first toothbrush bristle fixed to a part of the brush head; and a second bristles fixed to the other part of the brush head, wherein the first bristles are made of a polyketone material, and the second bristles are made of at least one water-insoluble polymer material selected from the group consisting of polypropylene, polyethylene terephthalate, polybutylene terephthalate, polytrimethylene terephthalate, polyurethane, and nylon.
In the toothbrush of the present application, a method for producing bristles, a composition, and the like, which are well known in the art of the present application, can be similarly utilized, except that a conventional nylon, PBT, and other materials are replaced with polyketone.
Effects of the application
Compared with the conventional toothbrush hair, the toothbrush hair made of the novel material has high rigidity, excellent elasticity, more contribution to cleaning teeth and excellent wear resistance, and can be used for a long time. In addition, the degree of hair extension is reduced, and thus the hair can be used in an initial state.
Drawings
FIG. 1 is a graph showing the measurement results of the interdental plaque removal rate per unit bristle diameter.
Fig. 2 is a photograph showing the state of polyketone and nylon bristles immediately after brushing, respectively.
Detailed Description
Hereinafter, the present application will be described in more detail with reference to examples. It will be understood by those skilled in the art that these examples are only for describing the present application in more detail, and the scope of the present application is not limited by these examples.
Examples
1. Comparison of physical Properties of polyketone, nylon and PBT
As resin material powders for the bristle material, nylon 612 (dopent, tynex), polybutylene terephthalate (PBT) (KOLON) or polyketone (Hyosung, M310U and M310U-like grad) were heated, molded and extruded through a nozzle of an extrusion device, cooled, and dried with hot air, thereby producing bristles having diameters of 0.18mm, respectively, from the respective materials.
(1) Tensile strength
Measurements after manufacture of the bristles can evaluate the tensile strength of the strength of a bristle to break, which can evaluate the stiffness of a bristle, and compare it to existing toothbrushes Mao Caizhi nylon 612 and PBT.
Specifically, according to the ASTM D638 standard test method, both ends of one bristle were fixed by a fixing device, and then the bristle was pulled in the axial direction of a test piece, and the force required for breaking, i.e., the tensile strength was measured.
(2) Rate of elastic loss
In addition, in order to confirm the durability of polyketone, a polyketone bristle was implanted into a toothbrush handle and manufactured into a toothbrush, and the elastic loss rate was compared with that of a toothbrush using nylon 612 and PBT bristles.
The elastic loss rate was used to evaluate durability (hair extension) when the toothbrush was used, and after 5000 and 10000 reciprocating brushing operations were performed using a brushing Machine (Brush Machine), the degree of extension of the bristles was measured by the method shown in the following equation 1. The smaller the elastic loss value, the smaller the difference in the width of the bristles before and after brushing, which means the smaller the degree of hair extension.
Elastic loss ratio (%) = (B-ase:Sub>A)/a×100
Mao Kuandu before brushing
Mao Kuandu after brushing
(3) Experimental results
The results of measuring the strength (Kgf) and the elastic loss rate (%) of the toothbrush Mao Kangzhang according to the wool material are shown in table 1 below.
TABLE 1
As a result of the experiment, it was confirmed that the tensile strength (Kgf) of the polyketone bristles was 2.0 times higher than that of nylon (Kgf) and 1.13 times higher than that of PBT (table 1), and that the physical properties of high rigidity could be maintained even after the bristles were manufactured.
In addition, the values of elastic loss for toothbrushes with polyketone bristles were reduced by 34% and 27% respectively over toothbrushes with nylon 612 and PBT, which data indicated that the bristles had 34% and 27% less expansion, respectively, than nylon 612 and PBT. Likewise, the polyketone showed results with 31% and 12% less bristle spread than nylon 612 and PBT, respectively, with 10000 reciprocations.
2. Polyketone, PBT and PES determination of gum irritation
As the polymer having high rigidity and excellent abrasion resistance characteristics such as polyketone, there are fluororesin (PTFE, PVDF), POM, PBT, PES, etc., however, it is difficult to manufacture bristles for fluororesin due to its high melting point, and it is unsuitable to manufacture bristles for POM due to its brittle characteristics. PBT and PES are materials having high strength and excellent abrasion resistance as in polyketones, bristles having a diameter of 0.18mm were manufactured using the corresponding materials in the same manner as in the above manufacturing example, and the distal ends of the bristles were implanted without additional fine bristle processing, thereby manufacturing toothbrushes. Thereafter, the panelist conducted a questionnaire about the degree of gum irritation on the manufactured toothbrushes of three materials, thereby evaluating them.
The questionnaire was compared after 20 women and 20 men aged 20-40 years, respectively using the experimental toothbrush for 7 days. A rest period of 3 days is provided in between before using the new toothbrush, during which the teeth are managed in usual habits. The results of the investigation are shown in table 2 (which can be selected repeatedly).
TABLE 2
No gingival pain during brushing teeth Gingival pain during tooth brushing Bleeding during tooth brushing
PBT 21 names 19 names of 4 names of
PES 13 names 27 names 5 kinds of Chinese medicinal herbs
Polyketone 35 kinds of 5 kinds of Chinese medicinal herbs 0 name
Experimental results show that polyketone has less gum irritation, so that the polyketone is suitable for being used as toothbrush bristle materials, and PBT and PES are not suitable for being used as toothbrush bristle materials due to the fact that the polyketone has large gum irritation.
3. Sensory evaluation of polyketone and nylon according to texture
Nylon bristles and polyketone bristles having a diameter of 5M (0.127 mm) were respectively implanted into the same toothbrush handle having 32 holes having a diameter of 1.6mm formed therein, thereby manufacturing an experimental toothbrush. The comparison was made after 7 days of use, respectively, with 20 women and 20 men aged 20-40 years. A rest period of 3 days is provided in between before using the new toothbrush, during which the teeth are managed in usual habits.
The questionnaire is composed of questions that can evaluate the elasticity and cleaning power of the toothbrush, and is evaluated on a 5-point scale (the higher the satisfaction, the higher the score).
TABLE 3 Table 3
Nylon 612 Polyketone
The toothbrush hair has elasticity 2.2 3.9
Feel that the teeth are brushed clean 2.5 4.0
Very comfortable between teeth 2.2 3.8
Easily remove interdental food residues 2.4 3.9
Experimental results show that the cleaning force of the tooth surface and the tooth space is obviously better than that of the toothbrush bristles made of nylon materials due to the excellent polyketone toothbrush Mao Danxing.
4. Determination of plaque removal effect based on toothbrush bristle diameter
The interdental cleaning force is more excellent when a toothbrush using small diameter bristles, but in the case of small diameter bristles, particularly in the case of nylon bristles which are most commonly used in the prior art, there are disadvantages in that bristles are easily broken, inelastic and easily spread.
To overcome the disadvantages of nylon bristles, a technique of designing bristles having elasticity and not being easily separated even though having a small diameter using a high-strength polyketone was provided in this example, toothbrush bristles having diameters of 10mils (0.254 mm), 8mils (0.203 mm), 7mils (0.178 mm) and 6mils (0.152 mm) were manufactured, and plaque removal effects were measured according to the diameters of the bristles.
The coating of plaque on the surface of an artificial tooth is performed as follows. The tooth portion of the jaw model (gnathostaic model) was put into a colored polymer for 10 seconds, taken out, and dried in a constant temperature and humidity chamber (25 ℃, 55%) kept at a predetermined temperature and humidity for 60 minutes to be completely dried for use in order to satisfy the condition of a predetermined thickness. In this case, toothbrushes with bristles of 10mils, 8mils, 7mils, and 6mils in diameter were used to maintain the bristle cross-section of the toothbrush and the buccal surface of the coated posterior jaw model horizontal to maximize coverage during brushing. 300g of pressure was applied to the entire toothbrush and each product was alternately brushed for 8 times 30 seconds vertically and 30 seconds horizontally. Then, the plaque area of the artificial tooth surface before and after removal was measured by a microscope, and the plaque removal rate was evaluated as a percentage (%), and the results are shown in fig. 1.
As a result of the test, it was confirmed that the plaque removal rate between teeth was improved by about 4.5 times or more as the diameter of the bristles was reduced from 10mils (0.254 mm) to 6mils (0.152 mm).
5. Polyketone vs. nylon physical Properties comparison
(1) Tensile strength
To evaluate the breaking strength of individual bristles, the upper and lower ends of one bristle were fixed at 1cm intervals on a Universal Tester (UTM), and the upper end was pulled at 200mm/min and the force at breaking was measured.
(2) Rate of elastic loss
To evaluate the extent of spreading of bristles after Brushing (Brushing), the spread width was measured after 5000 times of back-and-forth Brushing on a toothbrush Brushing tester, and the shapes of polyketone and nylon bristles were photographed immediately after Brushing, as shown in fig. 2.
(3) Elasticity of
To evaluate the elasticity (or softness) of the bristles, 1/3 of the bristles were hung on a wire capable of measuring the applied force to measure the force.
(4) Experimental results
The results of measuring the tensile strength, the elastic loss rate and the elasticity as described above are shown in table 4 below.
TABLE 4 Table 4
As can be confirmed from Table 4 above, polyketone (0.56 kgf) showed 40% higher tensile strength than nylon (0.40 kgf) as a result of evaluating the tensile strength of polyketone and nylon 612 having a hair diameter of 0.102mm (4 mils).
As a result of evaluating the elastic loss rates of polyketone and nylon 612 having a hair diameter of 0.127mm (5 mils), it was confirmed that the increase was 42% immediately after brushing and 48.7% after complete drying, as compared with nylon (the smaller the value, the smaller the extent of expansion).
In addition, as a result of evaluating the elasticity of polyketone and nylon 612 having a hair diameter of 0.127mm (5 mils), it was confirmed that the elasticity (224.9 cN) of polyketone was 28.8% higher than that of nylon (174.6 cN).

Claims (6)

1. A toothbrush bristle comprising a polyketone blend, characterized in that,
the polyketone mixture comprises 60 to 80% by weight of polyketone and 20 to 40% by weight of at least one water-insoluble polymer substance relative to the total weight of the polyketone mixture,
wherein the polyketone is represented by the following chemical formula,
wherein x: y is 1:10 to 10:1, and
wherein the at least one water-insoluble polymeric substance is selected from the group consisting of polypropylene, polyethylene terephthalate, polyurethane and nylon.
2. The toothbrush bristle according to claim 1, wherein,
the toothbrush further comprises at least one water-insoluble polymer selected from the group consisting of polybutylene terephthalate and polytrimethylene terephthalate.
3. The toothbrush bristle according to claim 1, wherein,
the toothbrush hair further comprises at least one selected from the group consisting of anti-inflammatory antibacterial agent, whitening agent, dental acid moderator, tartar prevention agent, flavoring agent, halitosis remover, gingival health agent, anticarious agent, oral cleaner, xylitol, bamboo salt, sea salt, preparation salt, refined salt, loose salt, boiled salt, molten salt, processed salt and phosphate.
4. The toothbrush bristle according to claim 1, wherein,
the bristles are fine bristles having needle-shaped ends and tip diameters of 0.02mm or less.
5. The toothbrush bristle according to claim 1, wherein,
the toothbrush hair is in a common hair shape with the same diameter as the diameter of the tip end and the tip end processed into a circular arc shape, and the diameter is 0.1 mm-0.13 mm.
6. A toothbrush is characterized in that,
comprising the toothbrush bristle according to any one of claims 1 to 5.
CN202311459770.8A 2016-09-29 2017-09-25 Polyketone-made toothbrush bristle and toothbrush comprising same Withdrawn CN117223964A (en)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
KR20160125903 2016-09-29
KR10-2016-0125903 2016-09-29
KR10-2017-0089694 2017-07-14
KR20170089694 2017-07-14
PCT/KR2017/010558 WO2018062791A1 (en) 2016-09-29 2017-09-25 Toothbrush bristles made of polyketone material, and toothbrush including same
CN201780057212.5A CN109715009A (en) 2016-09-29 2017-09-25 The bristles of polyketone material and toothbrush including the bristles

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
CN201780057212.5A Division CN109715009A (en) 2016-09-29 2017-09-25 The bristles of polyketone material and toothbrush including the bristles

Publications (1)

Publication Number Publication Date
CN117223964A true CN117223964A (en) 2023-12-15

Family

ID=61760894

Family Applications (2)

Application Number Title Priority Date Filing Date
CN201780057212.5A Pending CN109715009A (en) 2016-09-29 2017-09-25 The bristles of polyketone material and toothbrush including the bristles
CN202311459770.8A Withdrawn CN117223964A (en) 2016-09-29 2017-09-25 Polyketone-made toothbrush bristle and toothbrush comprising same

Family Applications Before (1)

Application Number Title Priority Date Filing Date
CN201780057212.5A Pending CN109715009A (en) 2016-09-29 2017-09-25 The bristles of polyketone material and toothbrush including the bristles

Country Status (7)

Country Link
US (1) US20190208901A1 (en)
EP (1) EP3520651B1 (en)
JP (1) JP7199667B2 (en)
KR (2) KR101914177B1 (en)
CN (2) CN109715009A (en)
TW (1) TWI736680B (en)
WO (1) WO2018062791A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202017002839U1 (en) * 2017-05-30 2018-08-31 Perlon Nextrusion Monofil GmbH Polyketone fibers, their preparation and use
KR102127595B1 (en) * 2019-05-02 2020-06-29 조정희 Environmental-friendly textile fabrics and mufacturing method thereof

Family Cites Families (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4851482A (en) * 1988-04-28 1989-07-25 Shell Oil Company Blends and articles of linear alternating polyketone polymer with polyurethane polymer
EP0339745B1 (en) * 1988-04-29 1995-01-18 Shell Internationale Researchmaatschappij B.V. Polyketone polymer composition
JPH1171513A (en) * 1997-06-25 1999-03-16 Toray Ind Inc Polyketone resin composition
DE19757607A1 (en) * 1997-12-23 1999-07-01 Inventa Ag Polyamide / polyketone blends
JP3824041B2 (en) * 1998-12-04 2006-09-20 株式会社三▲しゅう▼プレシジョン Interdental cleaning tool and manufacturing method thereof
KR200254055Y1 (en) 2001-05-21 2001-11-23 이충식 Toothbrush with tufts being composed of the powder of pine needle
KR200251617Y1 (en) * 2001-07-18 2001-11-17 이훈 Double-structured antibiotic tooth brush
DE10145275A1 (en) * 2001-09-14 2003-04-03 Coronet Werke Gmbh Monofilament with antimicrobial properties, use of such monofilament as bristle material and brush or brush with this bristle material
EP1460097B1 (en) * 2001-12-26 2007-05-09 Asahi Kasei Fibers Corporation Polyketone and process for producing the same
EP1507825B1 (en) * 2002-05-30 2006-11-22 Ciba SC Holding AG s CRYSTALINE POLYPROPYLENES
EP1384418B1 (en) * 2002-07-23 2007-03-28 KerrHawe SA Brush for dental treatment
JP2005211383A (en) * 2004-01-30 2005-08-11 Toray Monofilament Co Ltd Bristle for toothbrush
CN101278080B (en) * 2005-09-28 2012-04-04 东丽株式会社 Polyester fiber and textile product comprising the same
CN101401678A (en) * 2007-10-07 2009-04-08 周之海 Double-face toothbrush
KR101225308B1 (en) * 2009-11-30 2013-01-25 김응완 Antibacterial whitening brush and The manufacturing method
WO2013066070A1 (en) * 2011-11-02 2013-05-10 주식회사 엘지생활건강 Toothbrush bristles for maintaining oral health, elastic member for maintaining oral health, and toothbrush including same for maintaining oral health
PT2809481T (en) * 2012-01-30 2017-03-16 Hahl Filaments GmbH Abrasive bristle, method for producing same, brush having abrasive bristles and method for processing the surface of a workpiece by way of a brush having abrasive bristles
KR101368490B1 (en) * 2012-02-02 2014-03-10 비비씨 주식회사 Toothbrush and method for preparing the same
KR101281635B1 (en) * 2012-02-27 2013-07-03 비비씨 주식회사 Toothbrush through the blend technique containing zeolite for enhanced durability and antimicrobial and the manufacturing method thereof
KR101646037B1 (en) * 2014-11-14 2016-08-12 주식회사 효성 Polyketone multifilament
KR101598359B1 (en) * 2014-10-22 2016-03-14 비비씨 주식회사 Toothbrush containing bio-degradable resin composition and its preparation method
CN105919275A (en) * 2016-06-16 2016-09-07 朱群益 Interdental brush
DE202017002839U1 (en) * 2017-05-30 2018-08-31 Perlon Nextrusion Monofil GmbH Polyketone fibers, their preparation and use

Also Published As

Publication number Publication date
TWI736680B (en) 2021-08-21
JP2019530497A (en) 2019-10-24
EP3520651A4 (en) 2020-04-08
JP7199667B2 (en) 2023-01-06
US20190208901A1 (en) 2019-07-11
WO2018062791A1 (en) 2018-04-05
KR102308925B1 (en) 2021-10-05
TW201819462A (en) 2018-06-01
EP3520651B1 (en) 2024-01-10
CN109715009A (en) 2019-05-03
KR20180035686A (en) 2018-04-06
KR20180118591A (en) 2018-10-31
EP3520651A1 (en) 2019-08-07
KR101914177B1 (en) 2018-11-01

Similar Documents

Publication Publication Date Title
CA3057691C (en) Head for an oral care implement, oral care implement and method for manufacturing such head
CA3057693C (en) Head for an oral care implement, oral care implement and method for manufacturing such head
KR101896894B1 (en) Head for an oral care implement
EP0596633B1 (en) Toothbrush
JP4112002B2 (en) Oral brush for gingival massage
CN100512713C (en) Toothbrush with single embedded bristles
TWI513431B (en) Toothbrush with the core of the composite wire and the use of its toothbrush
US20180279759A1 (en) Head for an oral care implement, oral care implement and method for manufacturing such head
AU2008267192A1 (en) Toothbrush with long tapered bristles and short non-tapered bristles
KR20160125725A (en) Toothbrush
CN117223964A (en) Polyketone-made toothbrush bristle and toothbrush comprising same
JP4350002B2 (en) toothbrush
CN110213979B (en) Tooth brush
JP2021104314A (en) toothbrush
JP2008154724A (en) Bristle material for toothbrush and toothbrush
KR20090121705A (en) Structure of toothbrush head
JP2012228304A (en) Bristle material for toothbrush and toothbrush
JP2005270366A (en) Oral cavity cleaning tool

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
WW01 Invention patent application withdrawn after publication
WW01 Invention patent application withdrawn after publication

Application publication date: 20231215