Classifications

• • A—HUMAN NECESSITIES
  • A46—BRUSHWARE
  • A46D—MANUFACTURE OF BRUSHES
  • A46D1/00—Bristles; Selection of materials for bristles
  • A46D1/04—Preparing bristles
• • A—HUMAN NECESSITIES
  • A46—BRUSHWARE
  • A46D—MANUFACTURE OF BRUSHES
  • A46D1/00—Bristles; Selection of materials for bristles
  • A46D1/04—Preparing bristles
  • A46D1/05—Splitting; Pointing

Definitions

• the present invention relates to a method of manufacturing a bristles carrying a thermally weak functional material and a toothbrush using the same.
• Additives for the composition of monofilaments are weakly heat-resistant materials, and even if limited use is possible, they are subject to significant limitations in the form, function or concentration required, such as color changes in the spinning process or physical properties in the thin state.
• the present invention was completed at the end of the study to manufacture a toothbrush that can have a brushing effect without causing stimulation of gums, but with a fine toothbrush containing heat-sensitive functional substances.
• the purpose of the present invention is to produce a monofilament by extruding a synthetic resin, since the process is made from silver.
• Toothbrush can be manufactured.
• Another object of the present invention is to include a transparent bead having a high reflectivity on the bristles, and naturally use the die swell phenomenon that occurs during the melt spinning of the filaments that make the first bristles to the bristles. Positioning minimizes the destruction of beads that can occur during extrusion, while ensuring high scattering to provide a higher level of brush head.
• the present invention comprises the steps of a) preparing a resin composition comprising a polyester resin, a polypropylene carbonate or a blend thereof and a particulate thereof;
• the filament performs two or more multi-stretching so that the fine particles are exposed on the surface of the filament.
• T1 is the ratio of secondary stretching speed / primary stretching speed
• the primary drawing speed of the present invention is 12 to 20 m / sec, but not limited to one.
• the residence time of the primary stretching roller zone of the present invention is 0.5 to 1.5 seconds
• the residence time of the secondary stretching roller zone is 1 to 3 seconds
• the residence time of the tertiary stretching roller zone is 0.1 to 5 seconds.
• the present invention can provide a manufacturing method in which the nozzle used for the extruded above satisfies Equation 3 in which the ratio of the length and diameter of the radiator is not limited thereto. [24] [Equation 3]
• Equation 3 is the ratio of the length of the radiation sphere (mm) to the diameter of the radiation sphere (mm).
• the fine particles of the present invention may be manufactured using a bead or porous adsorbent, but not limited thereto.
• the porous adsorbent of the present invention exemplifies a manufacturing method characterized in that one or more selected from the group consisting of zeolite, silica gel, starch, bentonite, diatomaceous earth, and charcoal.
• the above beads of the present invention may provide a manufacturing method characterized by satisfying Equation 4 below, but not limited thereto.
• Equation 4 is the refractive index of the beads, n c is the refractive index of the filament.
• a manufacturing method may be provided in which the volume fraction of the beads of the present invention satisfies Equation 5 below, but is not limited thereto.
• V P is the volume of the polymer resin and V B is the volume of the beads.
• the above beads of the present invention may include a manufacturing method characterized by having a refractive index of 2.2 or higher, but is not limited thereto.
• the resin composition of the present invention may include a manufacturing method characterized in that it comprises 1 to 5 parts by weight of fine particles with respect to 100 parts by weight of a blend resin containing a polyester resin, a polypropylene carbonate or a mixture thereof. But it is not limited to this. -
• the filament is manufactured in bundles, and then one end of the bundle is immersed in a processing bath immersed in an alkaline solution having a concentration of 100-140 ° C. and 30-60% by weight.
• Manufacturing methods may include, but are not limited to, tapering and tapering to further expose particulates.
• the present invention may include, but is not limited to, a manufacturing method characterized by drying the tapered filaments above with an aqueous solution or organic solvent containing a functional substance and then drying them.
• the functional substances of the present invention include marigold, phytoncide, propolis, magnolia, tea, boy tea, green tea, pine needle extract, lotus, aloe, jasmine, camellia, ginkgo biloba, peppermint, camellia, corn, gold, silver, ginseng, Licorice, Centella, Myrrh, Chamomile, Latania, Manufacturing method characterized by at least one selected from clock candles, borage, nasterium, rosemary, basil, marlow, romaine, persimmon, silkweed, fern, sesame, mistletoe, plant extracts or natural extracts. To illustrate.
• the beads of the present invention have an average particle diameter of 30 to 100, and the porous adsorbent has an average particle diameter.
• Manufacturing methods characterized by 50 to 300 nm, BET specific surface area of 70 to 1000 m 2 / g and porosity of 30 to 60% may be included but are not limited to this.
• the cross section of the bristle according to the present invention may have one or more protrusions, and the bead may be located in the protrusion, and the cross section may provide a bristle which is characterized by one of circular, triangular and square ⁇ rhombuses.
• the present invention may provide a toothbrush comprising bristles according to the present invention.
• the present invention is directed to the inclusion of particulates in the resin composition for the manufacture of filaments,
• the objectives of the present invention can be achieved by providing functional bristles that are beneficial to oral health and providing excellent bristle.
• the present invention provides a micro-toothbrush with a thermally sensitive functional material, and processes the filament so that the porous adsorbent is exposed on the surface of the monofilament to support the functional material in the exposed porous adsorbent.
• the first bristles of the present invention are fragile toothbrushes, which are fragile to gums or teeth, and can be easily destroyed and broken down.
• the present invention can produce high-quality filaments with excellent scattering properties by including high reflectivity beads in the bristles.
• the high reflectivity beads can adjust the particle size of the beads to be injected according to the radiation conditions. The cutting of the filament can be suppressed.
• high hardness and circular beads can be used to provide whitening hair with high washing power and have the effect of suppressing irritation on the gums.
• FIG. 1 is a surface photograph of a micro-figure containing a support manufactured according to the present invention.
• FIG. 2 is a cross-sectional view of the brush head manufactured in accordance with the present invention.
• the present invention is intended for the development of a variety of filaments inherent in thermally vulnerable functional materials. More specifically, it is a functional material having an effect on gums or teeth health on the surface of the bristle filament, so that the functional material is released slowly when the toothbrush is used. This is done after the stretching and tapering process to expose the porous material on the surface of the filament, so that the functional material can be released in the fine particles of the porous material so that the functional material can be released when using the toothbrush. Can be manufactured.
• the specific volume fraction of the particles is defined in a specific range, and the melt flow rate, the expansion ratio, and the diameter and length ratio (Length / Diameter) of the resin composition in a specific range.
• the swelling is larger than the cross-sectional area, which is called die swell or extrudate swell.
• Filaments use these phenomena to send particulates in the spinning fluid to specific locations and to improve reflectivity and cleaning effects.
• the viscosity of the resin composition and the particle fraction, shear rate, and length of the radiator It is also possible to control the diameter of the spinneret and to control the trimming of the filament, and at the same time, to place the fine particles into the projection of the filament.
• the cleaning effect is improved, and fine particles having a high refractive index induce the reflection and produce a bright and luxurious feeling filament.
• the present invention can achieve the purpose of the present invention by providing fine bristles with oral health and by providing fine bristle in the resin composition for filament manufacture.
• the present invention is a) polyester resin 95 to 99.9% by weight
• a resin composition comprising 1 to 5 parts by weight of fine particles, based on 100 parts by weight of a blend resin containing 0.1-5% by weight of polypropylene carbonate;
• the filament may be used at least twice so that the fine particles are exposed to the surface of the filament.
• Multi-stage stretching and the speed and dwell time of the stretching roller during multi-stage stretching
• a method of manufacturing a bristles containing a brittle functional material containing heat may be provided.
• the present invention may include a) preparing a resin composition comprising 1 to 5 parts by weight of particulates based on 100 parts by weight of a blend resin including a polyester resin, a polypropylene carbonate, or a mixture thereof. have.
• the polyester resin is not particularly limited,
• Polybutylene terephthalate and polytrimethylene terephthalate vapor can be added with one or two or more polyester-based polyester resins.
• the polyester resin is 95 to 99.9% by weight.
• polyester resin is less than 95% by weight, the bristles are too strong, which can lead to stiff bristles and damage to the dentifrice, and greater than 99.9% by weight. Will be weakened.
• the content of polypropylene carbonate (PPC) in the resin composition may be included in the range of 0.1 to 5% by weight, but is not limited thereto.
• the polypropylene carbonate (PPC) may include heteroatoms such as N, 0, P, S, F, C1, Br, and I in the propyl group at the end of the molecular chain. If it exceeds 5% by weight, the viscosity of the resin composition may be so high that it may be difficult to manufacture the filament.
• the polypropylene carbonate (PPC) is mixed with the polyester resin and the blend resin when a molecular weight of 10,000 to 1,000,000 is used, more preferably 20,000 to 50,000. This is most desirable because it can increase stability.
• the resin composition is removed.
• the mixing temperature is preferably 220 to 260 ° C, and the time is 30 minutes to 2 hours. Rotational speeds of 15 to 35 rpm are preferred. If the lower than 220 ° C, the resin will not melt enough to blend well. Blending properties may change if the blend time is too long.
• the fine particles in the resin composition are the polyester resin and
• It may contain from 1 to 5 parts by weight based on 100 parts by weight of the blend resin containing polypropylene carbonate, but not limited thereto.
• the fine particles may be beads or porous adsorbents
• Examples may be, but are not limited to, beads, porous adsorbents, or combinations thereof.
• the porous adsorbent is selected from zeolite, zirconium phosphate, calcium phosphate, silica gel, starch, bentonite, diatomaceous earth, and charcoal.
• zeolite is the most preferred of the above-mentioned porous adsorbents.
• the zeolite has a maximum loading of 12% and a much higher loading than other inorganic carriers. It can carry a greater amount of functional material.
• the porous adsorbent is more specifically, an average particle diameter of 50 ⁇ 300 nm, BET
• the BET is a measurement method for measuring the specific surface area of a powder or a mass regardless of the material of the sample by using physical adsorption and chemical adsorption phenomena, and measures the specific surface area of the zeolite manufactured by the manufacturing method of the present invention.
• the measurement principle of the BET is to calculate the amount of adsorption by measuring the change in the partial pressure of the gas container when the gas is adsorbed and desorbed on the sample according to the partial pressure of the gas in the container without changing other conditions in the sealed container.
• the specific surface area of the sample can be measured. BJH based on the Kelvin equation for measuring the pore size
• the fine particles according to the present invention are beads
• the method of manufacturing the beads, the material and the shape of the beads are not limited.
• Polymer beads containing suspended emulsions containing colloidal metal oxides such as 10-2012-0029193, can be used, and aluminum oxide can be coated on the surface of beads, such as 2010-0014677, to increase the brightness of the beads using reflex reflection.
• glass beads may be used without the above treatment.
• Beads can have various shapes such as spherical, elliptical, rhombic, square, triangular, and atypical.
• the beads are not limited in shape, but for example, it is preferable to satisfy the following expression (2). [87] [Equation 2]
• l b is the length of the long axis of the bead, and 1 ° is the length of the longest straight line which increases the straight line distance from the center of the cross section to the fiber surface.
• Equation 2 is one of the factors that determine the position of the bead in the spun filament, when i 0 is less than 0.2 affects the volume fraction of the bead, as a result of the change in viscosity according to the shear rate, The filament will not move to the projections, and the beads will have a smaller particle size, which will lower the washing power and the quality of the texture will not be properly expressed. If i ⁇ is greater than 0.5, it can act as a cutting factor in the filament. Even if it is spun, the bead's particle size can grow so large that it can hurt the teeth of the teeth.
• beads according to the present invention can satisfy the following Equation 5.
• V P is the volume of the polymer resin and V B is the volume of the beads.
• the volume fraction of the beads refers to the volume occupied by the beads of the entire resin composition including the beads and the polymer, and the volume fraction of the beads is the most important factor among the factors that determine the position of the beads in the filament.
• the volume fraction of the beads affects the shear rate of the resin composition and influences the inertia effect of the beads.
• the volume fraction is influenced by the amount of beads added and the size of the beads, and as the amount of beads added or the size of the beads increases The sum of the resin composition and the rigid beads can reduce the dice well.
• the volume fraction is used to determine the density and mass of the polymer resin, which forms the bristles, and the bristles.
• the density of the polymer resin can be substituted for the high density of each polymer that forms the filament, and the volume can be obtained by calculating the additive amount.
• the apparent density may be measured in various ways, but it is preferable to calculate the mass per unit volume according to ASTM D 1895. In other words, the beads are weighed precisely and weighed into 25 dry glass cylinders (scale lm). It is possible to calculate the volume (M / V) by dividing the volume (V) divided by the mass (M).
• the beads when the volume fraction of the beads is in the range of 0.01 to 0.3, the beads are dispersed evenly without migration or crowding from the wall of the spinneret, so that the filament is not trimmed and the beads are not trimmed. Due to the even distribution of the bristles, the bristles can be cleaned more effectively.
• the bead may have an average particle diameter of 30 to lOOjum within a range satisfying the volume fraction, and a Vickers hardness of 400 to 700 kg / f may have a uniform surface roughness to improve cleaning power.
• Beads according to the present invention preferably use a material having a high refractive index for the light diffusion effect, preferably 2.2 or more, and more preferably 2.2 to 4, but not limited thereto.
• the difference in refractive index between the filaments and the polymer resin forming the filament may have the desired reflection effect in the present invention.
• the resin composition may have a mass flow rate (MFR) of 0.01 to 100 g / lOmin measured according to ASTM D1238 (230 ° C, 2160 g).
• MFR mass flow rate
• ASTM D1238 230 ° C, 2160 g
• the resin composition preferably has a swell ratio of 1.6 or more, preferably 2.0 to 3.0.
• the diameter of the resin composition means the diameter of the filament and the diameter of the filament that escapes the radiation sphere.
• the spinneret is affected by the degree of melting, the melt flow rate of the resin composition, the molecular weight distribution of the polymer resin, and the retention time of the spinning solution. It can also affect the movement of the beads in the waterproofing composition.
• the die well ratio is measured at a melt flow rate of 190 ° C. and a load condition of 21.18 N.
• the diameter (D) can be calculated by dividing the diameter (D 0 ) by the spinneret.
• step b) of the present invention may include the step of extruding the resin composition prepared in step a) to produce a filament of a fine structure.
• the present invention involves particles being rolled into the inner center when extruded resin compositions into filaments.
• the most desirable conditions are as follows: the length and diameter of the radiation nozzle that can be exposed uniformly on the surface of the filament.
• the nozzle used for the extrusion may be such that the ratio of the length and diameter of the spinneret satisfies Equation 3 below.
• L / D is the ratio of the length of the radiation sphere (mm) to the diameter of the radiation sphere (mm).
• Equation 4 represents one of the factors reflecting the diffuse reflection, and it is possible to provide a bright and luxurious feeling filament according to the following Equation 4, but not limited thereto.
• Equation 4 is the refractive index of the beads, ⁇ is the refractive index of the filament.
• Equation 4 is a factor determined by the refractive index of the filament-based polymer resin and beads.
• organic polymers composed of most hydrocarbons have a low refractive index, and most pure hydrocarbons do not exceed 1.5.
• the refractive index increases slightly, but it is difficult to obtain more than 1.6.
• metals may be replaced in the backbone of the polymer, but uneven dispersion or formation of domains may cause the problem of dropping transparency. Will let you.
• the present invention introduces a semi-reflective bead in the filament, but adds the difference in refractive index with the filament to induce the diffuse reflection of light passing through the filament, and the additional advantage of ultraviolet ray blocking by surface reflection or scattering. You can have
• Equation 4 when the value of Equation 4 is 0.02 to ⁇ , it has an appropriate refractive index between the resin and the beads that make up the filament, and thus has the desired surface reflection and scattering effects, thereby securing the desired transparency and sharp dyeing. This is the best because it can be improved.
• the filament after the filament is spun off, it is preferable to go through an additional cooling process to ensure the stability of the bonding state, wherein the preferred cooling temperature is 8 to 18 ° C. It is desirable to use C coolant to perform rapid cooling, which is excellent in strength, to keep the bonded filament in a stable state and thickness, and to allow the process to be easily stretched afterwards. no.
• the filament is fine particles on the surface of the filament
• At least two stages of stretching may be performed so as to be exposed, and stretching may be provided so that the stretching ratio resulting from varying the speed and residence time at the stages of stretching may satisfy the following formula (1).
• T1 in Equation 1 is the ratio of the secondary stretching speed / primary stretching speed
• the multistage stretching may be performed two or more times, and more preferably, the multistage stretching may be performed three times in total, but is not limited thereto.
• the present invention has the feature of producing a filament so that the fine particles contained in the resin composition are exposed on the surface of the filament through the stretching process of the filament.
• the particles contained in the resin composition may dry out without being exposed to the outside, or if the filaments are rapidly stretched at a rapid rate, the fine particles may escape from the filament. It is important to adjust the stretching conditions so that the particles can be uniformly exposed on the filament surface. Therefore, the present invention is drawn to the stretching conditions when the stretching conditions of the present invention is drawn at the end of the study under different drawing conditions. The most desirable conditions such as the above, which can be uniformly exposed to the filament surface without going, have been established.
• the stretching according to the present invention allows the particulates to be uniformly exposed on the surface of the filament.
• the single drawing is preferably the best because the third multi-stage drawing is excellent in the thickness and strength of the filament, and the fine particles can be uniformly exposed to the surface of the filament.
• the multistage drawing increases the number of multistage drawing processes in the primary drawing.
• the primary stretching is performed at a stretching speed such that only about 20 to 40% of the particulates encased in the membrane are exposed by slowing down the stretching speed for the purpose of exposing a part of the particles to the filament surface without the particles being separated from the filament surface.
• the primary stretching speed of the filament is 12 to
• the residence time in the primary elongation zone is 20 m / sec and can be performed from 0.5 to 1.5 seconds but is not particularly limited.
• the secondary stretching is performed at a rate to prevent the detachment of fine particles from the filament surface and to expose more surfaces than those of the exposed fine particles during primary stretching, and to enclose the surface of the particles in a thin film. Stretching can be performed at a higher speed.
• the drawing speed of the filament has a secondary drawing speed / primary drawing speed ratio (T1) of 3.0 ⁇ T1 ⁇ 4.1 as shown in Equation 1, and the second drawing stays in the region. It is best to do this in 1 to 3 seconds, but it is not limited to this.
• the tertiary drawing is performed at a drawing speed that can be exposed to the filament surface while the thin film surrounding the particle surface of the particles is torn, and the tertiary drawing is carried out at a short residence rate of the particle, thereby peeling the particles out of the filament surface. It is possible to prevent the shading of the surface and to produce the surface and to produce a clean and uniform surface.
• the filament has a third drawing speed / first drawing speed ratio ( ⁇ 2) as shown in Equation 1. 5.2 ⁇ 2 It is best to draw at ⁇ 6.0 and to carry out the third drawing in the region of the region of ⁇ to 0.5 seconds, but not limited thereto.
• the drawing is performed by drawing at least 2 times, more preferably by drawing 3, and by drawing at a drawing ratio that satisfies Equation 1 according to drawing roller speed and residence time.
• the stretching is such that the fine particles are uniformly distributed on the surface of the filament, the surface of the particles of the fine particles can be exposed cleanly, and in addition, when the fine particles are beads, the effect of further moving the position of the beads in the filament toward the projections There is.
• the thickness of the filament by the stretching may be 0.05 ⁇ 0.3, in order to ensure that the particles are uniformly distributed on the surface of the filament at the thickness, the surface of the particles of the fine particles can be exposed cleanly It is the most suitable condition.
• the present invention provides a step of tapering the stretched filament in step d)
• the tapering may include, but is not limited to, for example, manufacturing the filaments in bundles and immersing them in acid or alkaline solutions to produce some of the more exposed filaments.
• one end of the bundle is The taper is immersed in a processing bath immersed in 100 ⁇ 140 ° C, 30-60% acid or alkaline solution, and tapered by immersing the other end of the loop end with the same alkaline solution to further expose fine particles. It may further comprise a step.
• a part of the particulates is formed on the surface of the filament.
• the method may further include a manufacturing process in which a part of the fine particles may be additionally exposed to the surface of the filament by immersing and tapering the contained processing bath.
• the taper may be tapered by immersion in alkaline solution up to 20-60% of one or both ends of the bundle, but the present invention is not limited thereto.
• Caustic soda can be used, and heating at a temperature of 100 ⁇ 140 ° C is preferred because it reduces the tapering time and allows the tape to form uniformly.
• the formed and decomposed resin is combined with alkali, forming a lump like molten resin, and sealing one end of the micronized portion. Then, the tapered portion can be formed by washing and removing the hydrolyzed portion. Can be neutralized with dilute sulfuric acid and finally washed again with water.
• the porous adsorbent may be loaded with a larger amount of the functional material, and by exposing the beads, irregularities are formed on the surface of the filament, thereby increasing the This can increase the washing power.
• part of the particulates is obtained by performing the above tapering.
• the taper may be used in the case of a porous adsorbent to provide a greater amount of
• the degree of exposure of the beads can be adjusted appropriately to achieve the desired cleaning power due to the beads, as well as by tapering one side or the end of the bundle to fine-tune It has the advantage of further improving the quality of the microfibers by making thin, high strength filaments for easy brushing to the smallest and corners of the teeth.
• the present invention provides a method for producing a filament in which functional particles are exposed.
• the functional material may be dissolved in an aqueous solution or a solvent, and the aqueous solution or solvent may be adsorbed on a porous adsorbent such as zeolite.
• a porous adsorbent such as zeolite.
• Any solvent that can dissolve and remove dry matter can be used without any particular limitation.
• the solution or solvent may be ethanol, but not limited to water, purified water, or organic solvents.
• the step is exposed to the surface of the filament by impregnating the filament in the functional material, so that the functional material is supported on the porous adsorbent, so that the functional material supported on the porous adsorbent can be slowly released when using the toothbrush. can do.
• the functional material is supported.
• the functional material is released, and when the filaments are tapered by chemical methods of acid or alkali,
• the exceptionally high has the advantage.
• the functional material may be impregnated with the organic solvent in a 1 to 100: 1 weight ratio to impregnate the filament, but not limited thereto.
• the impregnation time may be 1 to 60 minutes, preferably 1 to 30 minutes, More preferably, it can be 2 to 10 minutes. If it is less than 1 hour, the functional substance cannot be fully supported by the porous adsorbent. If it is more than 10 hours, the functional substance is sufficient time to be supported by the porous adsorbent.
• the aqueous solution or organic solvent melts the functional material to impregnate the filament.
• the functional substance means a functional substance having an effect on gum or tooth health, and may be any functional substance having an effect on gum or tooth health. More specifically, the functional substance has the above-mentioned function, and more specifically, a high temperature process in the past. This essential bristles manufacturing process may have destroyed the function or efficacy of the bristles and prevented the use of heat.
• the functional material is marigold, phytoncide, propolis, magnolia, tea, boy tea, green tea, pine needle extract, lotus, aloe, jasmine, camellia, ginkgo biloba, mint, camellia, corn, Gold, Silver, Ginseng, Licorice, Centella, Myrrh, Chamomile, Latania, Clockwork, Borage, Nasterium, Rosemary, Basil, Marlow, Romaine, Perilla, Silkworm, Fern, Sessin, Mistletoe, Buttercup It is possible to use one or more selected from plants or natural extracts consisting of but not limited to.
• the natural extract is propolis, and the plant extract means other substances except propolis.
• the plants or natural extracts refer to the use of natural herbs or plants obtained by washing, drying and extracting juices, or to water, ethanol, propylene glycol (PG), or a mixture thereof at room temperature.
• the extracted extract may be used as it is, but it may be a fermented fermentation broth added with lactic acid bacteria in order to improve the effect of gum or tooth health.
• the above-mentioned functional substances that are vulnerable to high temperature have not been easily used in the manufacture of brush heads produced by high temperature processes, and even if used in the production of brush heads, the function is extruded, stretched, and thermally treated to produce the brush head.
• the high temperature such as and taper was destroyed during the process, and there was a limitation that it was not possible to express the effectiveness of the functional material.
• the present invention has performed a process in which a high temperature process for manufacturing brush heads supports functional materials in porous adsorbents on all brush heads, so that the functional materials are not destroyed by temperature.
• the toothbrush has the advantage of releasing functional substances from the porous adsorbent, which can help to properly demonstrate the effectiveness of ingredients that can prevent or improve gum or tooth health.
• Another aspect of the present invention can provide a bristles in the form of micro-hairs carrying the functional material produced by the above production method.
• the cross section of the bristle may have one or more protrusions, the bead may be located in the protrusion, and the cross section may be any one of a triangle, a rectangle, and a rhombus, but is not limited thereto.
• a toothbrush including the bristles, a toothbrush or a plant or natural extract containing functional ingredients beneficial to gums or teeth health, which have not been vulnerable to high temperature in the past, have been loaded onto the toothbrush.
• This allows the functional ingredients to be released in time to replace the toothbrush when using the toothbrush, as well as to provide a micro-first brush with excellent cleaning power due to the high hardness of the beads.
• the bead is placed at a vertex of the non-round bristles to have high reflecting light and to improve cleaning power by using the hardness of the beads and to provide a reflective first brush.
• the beads 120 according to the present invention can be located on the projection 11 side with respect to the cross section as shown in Figure 2.
• the projection line is a dotted line
• the dashed line is a virtual circle for explaining the protrusions and is formed as a curve in the drawing but may form an angle.
• the bead 120 may be exposed to the surface of the bristles as shown in (b) or (d) of FIG. 2 to act as an unevenness.
• the taper's solution, immersion time, number of immersion, and other conditions the surface area of the brush head can be widened, and the area of contact with the tooth teeth can be increased to increase cleaning power.
• the treatment was carried out for 1 hour (m 2 ), the weight was measured, and the weight loss rate for the initial weight was measured.
• the mass per unit volume of the beads was measured according to ASTM D 1895.
• the 3.0g beads were soaked in 25 glass mass cylinders (scale 1) so as not to be pressed, the density was calculated after reading the volume to the minimum unit of the scale, and the ambient atmosphere was 25 ° C and relative humidity was 52%.
• the measurement density was repeated three times and the hanging density was obtained from the average value.
• Each volume is based on the density and mass of the measured polymer resin and beads.
• V P is the volume of the polymer resin and V B is the volume of the beads.
• Elongation was measured according to the KS K 0412 method.
• the KS G 3103 tests the simulated flexion recovery rate, and the measuring method is described as an example.
• the KS K 0412 tests the simulated strength and elongation, and the measuring method is described as an example.
• Tensile strength is determined by using a universal testing machine (UTM, Lioyd).
• the measurement was performed at a load speed of 20 cm / min. The average of the remaining measured values was recorded except for the minimum and maximum values among the values measured and evaluated seven times under the above conditions.
• the blend resin which contains 99% by weight (990 g) and 1% by weight (10 g) of polypropylene carbonate (weight average molecular weight 26,000), is added with 5 parts by weight of zeolite (gold farming industry) having an average particle diameter of 260 °.
• the resin composition was prepared by stirring at C and 25 rpm for 6 hours.
• the resin composition was introduced into an extruder (PLE-331, Brabender Co.) equipped with a twinscrew, and the filament of lmm thickness was extruded. Then, the extruded filament was passed through a 10 ° C. cooling device. After that, the primary drawing speed is 1.5m / sec, the secondary drawing speed is 65m / sec, and the third drawing speed is 100m / sec.
• the monofilament was produced in mm.
• the elongated filament was made into a bundle of 45 mm in diameter and 30 mm in height, and then tapered by immersing 180% in 110 ° C caustic soda solution for 35% to 30% from one end of the bundle.
• the stretching speed in the multistage drawing is the primary drawing speed.
• Example 4 The fine hair was manufactured in the same manner as in Example 1, except that 19 m / sec, secondary stretching speed 72.2 m / sec, and tertiary stretching speed 112.1 m / sec. The loss rate was measured and recorded in Table 2 below. The micro-applied experiments were performed and the results are recorded in Table 3. [Example 4]
• the stretching speed in the multistage drawing is the primary drawing speed.
• the fine hair was manufactured in the same manner as in Example 1, except that it was 14 m / sec, the second stretching speed was 44.8 m sec, and the third stretching speed was 84 m / sec.
• the measurements were recorded in Table 2 below, and the micro-application experiments prepared above were performed and the results are recorded in Table 3.
• the residence time of the primary stretching roller zone was 1 second
• the residence time of the secondary stretching roller zone was 2 seconds
• the tertiary stretching roller was conducted except that the retention time of the zone was 0.3 seconds.
• a fine hair was prepared in the same manner as in Example 1, except that 10 parts by weight of zeolite (gold farming industry) having an average particle diameter of 50 nm was prepared. 2, the application of the prepared microcapsules was performed and the results are reported in Table 3.
• zeolite gold farming industry
• filaments were prepared.
• the filaments were then tapered by immersion in 1 10 ° C, 30 RH% sodium hydroxide solution. Afterwards, washed twice with water, concentrated with dilute sulfuric acid and washed again. Taper Shape
• the filament was then impregnated with a solution containing the functional material for 10 minutes, and then the volatile components were dried to volatilize to finally produce a fine hair. The solution containing the functional material was observed. Plant extract combining vinegar, silk vine and fern 50 ml and 100 ml of ethanol were used in combination.
• the physical properties of the filaments prepared above were measured and described in Tables 1 and 2.
• the filaments were manufactured in the same manner as in Example 7, except that beads having a refractive index of 2.5 were used.
• the physical properties of the manufactured filaments were measured and described in Tables 1 and 2.
• a filament was prepared in the same manner as in Example 7, except that 27.77 g of the beads were added to adjust the volume fraction of the beads to 0.3.
• the physical properties of the manufactured filaments were measured and described in Tables 1 and 2.
• a filament was prepared in the same manner as in Example 7, using beads having a refractive index of 1.8.
• the physical properties of the manufactured filaments were measured and described in Tables 1 and 2.
• a filament was prepared in the same manner as in Example 7, except that 0.46 g of beads were added so that the volume fraction of the beads was 0.005.
• the physical properties of the manufactured filaments were measured and described in Tables 1 and 2. It was.
• the filaments were manufactured in the same manner as in Example 7, except that IJD was used for 35 spinnerets.
• the physical properties of the manufactured filaments were measured and described in Tables 1 and 2.
• the filaments were manufactured in the same manner as in Example 7, except that IJD used 13-spinners.
• the physical properties of the manufactured filaments were measured and described in Tables 1 and 2.
• the fine hair was manufactured in the same manner as in Example 1, except that the speed differed from 10 m / sec, secondary stretching speed of 47 m / sec, and tertiary stretching speed of 70 m / sec.
• Tensile strength and elasticity loss rate of the fine simulations were measured and recorded in Table 2 below.
• the application of the prepared microcapsules was performed and the results are recorded in Table 3.
• the fine hair was manufactured in the same manner as in Example 1, except that 23 m / sec, secondary stretching speed 46 m / sec, and tertiary stretching speed 103.5 m / sec. was measured and recorded in Table 2 below. The micro-applied experiments were performed and the results are recorded in Table 3.
• blend resin which contains 99% by weight (990 g) and 1% by weight (10 g) of polypropylene carbonate (weight average molecular weight 26,000), was added 260 ° by adding 30 parts by weight of zeolite (gold farming industry) having an average particle diameter of 50 nm.
• the resin composition was prepared by stirring at C and 25 rpm for 6 hours.
• the prepared resin composition was introduced into an extruder (PLE-331, Brabender Co.) equipped with a tweezers screw, and a monofilament of 1 mm thickness was extruded, and air cooled by 20 ° C lower than the extruded silver. The filament was then produced.
• the film was first drawn through a 10 ° C cooling unit at a total draw ratio of 6 times to produce a monofilament with a thickness of 0.2 mm. The drawing was performed at 100-180 m / sec. The same method as in Example 1 was carried out except that the film was drawn under the drawing conditions of FIG.
• Tensile strength and modulus of elasticity of the fine hair manufactured by the above method were measured and recorded in Table 2, and the application experiment of the prepared fine hair was performed and the results are recorded in Table 3.
• the resin composition was prepared by stirring for 6 hours.
• the functional material was prepared in the same manner as in Example 1, except that 50 ml of plant extract including chlorophyll, borage, nasterium, rosemary and basil were used in combination with 100 ml of ethanol. Was carried out.
• Tensile strength and modulus of elasticity of the fine hair manufactured by the above method were measured and recorded in Table 2, and the application experiment of the prepared fine hair was performed and the results are recorded in Table 3.
• Example 14 when the form (D) of the spinneret is out of the scope of the present invention, the filament is simultaneously with the radiation or the fine particles are directed to the filament surface. Excessive crowding caused embarrassment.
• 3 ⁇ 4 brush was tested in 10 patients with severe bad breath caused by oral abnormalities and oral inflammatory symptoms.
• Example 6 the content of zeolite exceeds the scope of the present invention
• Example 5 More preferably, in Example 5, the filament is extruded using a spinneret that satisfies the scope of the present invention.
• the porous adsorbent is evenly distributed and exposed, so that more functional material is supported in the porous adsorbent, and it can be estimated that the functional material can be released for a longer time and its effect can last for a long time.
• the porous adsorbent is concentrated on the filament core, which prevents it from being evenly exposed on the surface of the filament.
• the comparative example 4 in which the functional material was mixed with the resin composition and manufactured, showed no effect on bad breath and oral inflammation. It is presumed that the effect of the functional ingredients in the manufacturing process of the fine hair is destroyed by the high temperature and the effect is not shown.
• the bristles including the bead showed that the washing and brushing due to the beads were excellent while maintaining mechanical properties. It showed that it can effectively induce diffuse reflection and express high-quality appearance.

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• 2015
  • 2015-02-05 CN CN201580065298.7A patent/CN106998902B/zh not_active Expired - Fee Related
  • 2015-02-05 WO PCT/KR2015/001196 patent/WO2016068398A1/ko active Application Filing

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