CN104902785A - Method for manufacturing bristles on toothbrush and toothbrush using same - Google Patents
Method for manufacturing bristles on toothbrush and toothbrush using same Download PDFInfo
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- CN104902785A CN104902785A CN201380063230.6A CN201380063230A CN104902785A CN 104902785 A CN104902785 A CN 104902785A CN 201380063230 A CN201380063230 A CN 201380063230A CN 104902785 A CN104902785 A CN 104902785A
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- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46D—MANUFACTURE OF BRUSHES
- A46D1/00—Bristles; Selection of materials for bristles
- A46D1/04—Preparing bristles
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- 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
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- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46D—MANUFACTURE OF BRUSHES
- A46D1/00—Bristles; Selection of materials for bristles
- A46D1/006—Antimicrobial, disinfectant bristles, handle, bristle-carrier or packaging
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- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46D—MANUFACTURE OF BRUSHES
- A46D1/00—Bristles; Selection of materials for bristles
- A46D1/02—Bristles details
- A46D1/023—Bristles with at least a core and at least a partial sheath
-
- 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
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- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46D—MANUFACTURE OF BRUSHES
- A46D1/00—Bristles; Selection of materials for bristles
- A46D1/02—Bristles details
- A46D1/0261—Roughness structure on the bristle surface
-
- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46D—MANUFACTURE OF BRUSHES
- A46D1/00—Bristles; Selection of materials for bristles
- A46D1/02—Bristles details
- A46D1/0276—Bristles having pointed ends
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/253—Formation of filaments, threads, or the like with a non-circular cross section; Spinnerette packs therefor
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F1/00—General methods for the manufacture of artificial filaments or the like
- D01F1/02—Addition of substances to the spinning solution or to the melt
- D01F1/10—Other agents for modifying properties
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
- D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
- D01F8/12—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyamide as constituent
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
- D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
- D01F8/14—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyester as constituent
-
- 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
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Brushes (AREA)
- Multicomponent Fibers (AREA)
Abstract
The present invention relates to bristles on a toothbrush and a method for manufacturing the same, wherein the bristles on a toothbrush have a core-sheath double structure and various forms of cross sections, contain inorganic particles and at the same time, have uneven portions on the surface thereof by being tapered, and include inorganic or organic antimicrobial materials.
Description
Technical field
The present invention relates to the manufacture method of bristles and utilize the toothbrush of this bristles.
Background technology
Toothbrush is the oral cavity comprising tooth and gum for clean and the representational instrument used.Usually, toothbrush is made up of brush rod and bristles, and wherein, bristles uses usually to be had flexible synthetic resin to manufacture.This common bristles mainly manufactures using nylon or polyester as raw material, although nylon has suitable elasticity and the advantage of flexibility, but because absorbability is large, thus the life-span is short, and because intensity is little, thus need the fineness degree with more than prescribed level, also due to the processing such as tapering (tapering) cannot be carried out, thus between tooth or gum and interdental penetration weak, therefore there is the shortcoming being difficult to remove dental calculus, swill etc. completely.Further, as polyesters bristles, there is following shortcoming, if do not carry out taper WEDM, then because elasticity is large and flexibility declines, thus the gum of user of service is easy to injured, and when carrying out taper WEDM, although permeability and flexibility outstanding, the removal power of dental calculus etc. is declined.
Other shortcomings that common bristles has are that bacterium breeds in bristles.When user of service after brushing after, mostly can be exposed to the state keeping toothbrush in air, from the feature of toothbrush, due to the not dry state keeping of bristles, thus cause microorganism to be suitable for the environment of surviving.When brushing teeth, these microorganisms shift to oral cavity, thus become the reason causing periodontosis.
In order to solve problem as above, the toothbrush with the variform of antibiotic property and mithridatism appears on the market.This functional toothbrush mainly comprises the composition of pine needle, charcoal, barley young shoot, bamboo salt, loose salt etc. mostly, or comprises the inorganic antiseptic of Nano Silver, silver ion, platinum, gold, copper, manganese etc. in bristles.Usually, this material is contained in the macromolecule resin of formation bristles material to carry out spinning, although inorganic antiseptic does not receive the impact of spinning resin greatly, vegetalitas antiseptic then exist antibiotic property or to the useful composition of human body because of the temperature of spinning solution destroyed problem.
Korean registered special permission 10-0944799 relates in the forming process of bristles, barley young shoot composition and inorganic antiseptic powder is mixed the invention of the method manufacturing bristles in the mode that predetermined component is contained in macromolecule resin.According to foregoing invention, allegedly based on the function of barley young shoot, salubrious sense can be brought to gum, and there is the effect stimulated circulation.But, due to the vitamin C in the composition that barley young shoot comprises, very fragile to heat, be thus easily destroyed at the temperature of spinning solution, thus suspect whether to obtain function desired in foregoing invention.
Further, Korean registered special permission 10-0953868 describes to relate to and pine needle powder and bamboo salt component is mixed with synthetic resin, the invention of the bristles of the multiple efficacies that the pine needle with antibiotic property, damping, deodorizing, purification etc. has.But the part that foregoing invention also exists the composition that pine needle has is destroyed by the heat of spinning solution or the worry of sex change, and, the function to the permeability effectively removed needed for dental calculus and swill etc. is not proposed.
(prior art document)
Patent document 1: Korean registered special permission 10-0944799 (on 02 22nd, 2010)
Patent document 2: Korean registered special permission 10-0953868 (on 04 20th, 2010)
Summary of the invention
In order to solve problem as above, the object of the invention is to, the semipermanent antimicrbial power with the shortcoming had as existing toothbrush and bristles is provided, and realizes the manufacture method of the Novel toothed bristle of outstanding cleaning capacity and penetration and utilize the toothbrush of this bristles.
Technical scheme
To achieve these goals, the present invention relates to the manufacture method of bristles and utilize the toothbrush of this bristles, bristles of the present invention forms core sheath (core-sheath) dual structure and forms the section of variform, containing inorganic particulate, and formed on surface concavo-convex by carrying out taper WEDM, and comprise mineral-type or organic antibacterial material.
One embodiment of the present invention relates to the manufacture method of bristles, and the manufacture method of above-mentioned bristles comprises: step a), makes the core-sheath-type fibril be made up of core and sheath portion; Step b), cut off above-mentioned fibril; Step c), by above-mentioned steps b) in one end of fibril impregnated in the working groove that taper WEDM solution is housed; And steps d), by above-mentioned steps c) in the other end of fibril impregnated in the working groove that aqueous slkali is housed.
Another embodiment of the present invention relates to the invention of the toothbrush utilizing the bristles manufactured by said method.
Below, to the manufacture method of bristles of the present invention and utilize the toothbrush of this bristles to be described in detail.
The structure of bristles of the present invention forms core sheath maqting type (core-sheath) for good by core and sheath portion.Above-mentioned core and sheath portion utilize the macromolecule resin that can carry out taper WEDM to be good, form core identical or different all harmless mutually with the macromolecule resin in sheath portion, but assigning to form fine hair to dissolve marine origin, preferably using sea component and the mutually different macromolecule resin of island component.More preferably, above-mentioned sea component and island component is used to meet the macromolecule resin of following mathematical expression.
Formula 1
V
s＞V
i
(in above-mentioned formula 1, V
sfor sea component is dissolved in the speed of aqueous slkali, V
ifor island component is dissolved in the speed of aqueous slkali.)
As the macromolecule resin forming above-mentioned island component, preferably use and be selected from PEN, PETG, cyclohexanedimethanol's diformazan alcohol ester (polycyclohexylenedimethyleneterephthalate), the polyester of polyester ether or polyether-ether-ketone etc., thermoplastic elastomer, elastomer (elastomer), silicone, bio-based epoxy resin (BPA-free bio plastic), polyformaldehyde, nylon 4, nylon 6, nylon 7, nylon 9, nylon 11, nylon 12, nylon 4, 6, nylon 6, 6, nylon 6, 10 and nylon 6, one or more macromolecule resin in 12.
As the macromolecule resin forming above-mentioned sea component, preferably, use the polyester copolymer macromolecule resin of the monomer copolymerizable of 10 % by weight to 50 % by weight or be used alone polyester, above-mentioned monomer is for being selected from polyethylene glycol, polypropylene glycol, 1, 4-cyclohexane dicarboxylic acid (1, 4-cyclohexanedicarboxylicacid), 1, 4-cyclohexanedimethanol (1, 4-cyclohexanedimethanol), 1, 4-dimethyl hexahydrophthalate (1, 4-cyclohexanedicarboxylate), 2, 2-dimethyl-1, ammediol, 2, 2-dimethyl-1, 4-butanediol, 2, 2, 4-trimethyl-1, 3,-propane diols, adipic acid, isophathalic acid, 5-sodiosulfoisophthalic acid (5-sodium sulfoisophthalic acid), PLA, polyethylene glycol oxide (polyethyleneoxide), any one above monomer in super high molecular weight polyalkylene oxides (polyalkylene oxide).These copolymers, compared with common polyester, present the dissolution rate of more than 10 times, are thus applicable to form the micro-Splittable bristles desired by the present invention.
In the constituent of above-mentioned bristles, relative to total fibril of 100 volume %, comprise the core of 10 volume % to 90 volume %, and comprise the sheath portion of 10 volume % to 90 volume %.
Above-mentioned bristles, when to cut perpendicular to axial mode, than circular, also can have the section of other shapes.The form of above-mentioned section is one in circle, dumb-bell shape, cross, disc, gull-shaped, triangle, rectangle, rhombus and taper shape.Above-mentioned section when carrying out spinning to the macromolecule resin forming bristles, can be decided by the form of spinning head.
Form in the macromolecule resin of above-mentioned bristles, i.e. core, sheath portion one or core and sheath portion and all also can comprise additive.Above-mentioned additive package contains the mixture of organic filler, inorganic particulate or organic filler and inorganic particulate, by adding additive, the intensity of bristles can be improved, or regulate the elasticity of bristles, when carrying out taper WEDM to above-mentioned bristles, as undissolved part, play and form concavo-convex effect on the surface of bristles.
For above-mentioned organic filler, as long as in this area normally used material, the then kind of above-mentioned organic filler not circumscribed, powder morphology is also harmless.As above-mentioned organic filler, such as can use and be selected from green tea, barley young shoot extract, ginkgo biloba p.e, Folium Pini extract, the various botanical extract of bamboo extractive etc., active carbon, the powder of xylitol etc., polyacrylic acid, polymethacrylates, the polyacrylic acid family macromolecule of polyvinyl acetate etc., cellulose, hydroxypropyl methylcellulose, CMC, methylcellulose, ethyl cellulose, CMC, hydroxyethylcellulose, HEMC, the cellulose family macromolecule of carboxymethyl cellulose etc., polyvinyl alcohol, polyethylene glycol, polypropylene glycol, the polyalcohols macromolecule of polypropylene glycol copolymers etc., one or more of polyethylene glycol oxide.Above-mentioned substance brings salubrious sense to gum, stimulates circulation, activate cell functions, can release the functional components being of value to oral health.
Further, if organic filler of the present invention is active carbon, based on having cellular structure this point, making the photochemical catalyst of nanosized be adsorbed in a large amount of fine pores of active carbon, thus can greatly improve the antibacterial of charcoal and deodoriging properties.
Photochemical catalyst used in the present invention comprises visible light catalyst, visible light catalyst has outstanding antibiotic property in the visible region of 350nm to 550nm, by the surface characteristics that nano particle has, show high photochemistry property active, and stability is very high, thus comprise the man-made hair of the carbon powder being adsorbed with visible light catalyst, there is unthinkable outstanding antibacterial and deodorizing effect, and because stability is outstanding, thus can continue for a long time to play function.
Visible light catalyst used in the present invention is used material usual in this area, such as, can use titanium dioxide, zinc oxide, silver oxide, titanium oxynitrides (titanium oxynitride) etc., preferably, uses titanium oxynitrides.
The invention is characterized in, the particle diameter being supported with the active carbon powder of photochemical catalyst is 300 order to 1500 orders (mesh).If the particle diameter of above-mentioned active carbon powder is less than 300 orders, be then difficult to mix with resin material, if the particle diameter of above-mentioned active carbon powder is greater than 1500 orders, then exist not for the problem of the pore (pore) of photochemical catalyst infiltration.
The manufacture method supporting the active carbon powder of above-mentioned photochemical catalyst is, after 0.5 little stirring up to 4 hours, mixing are carried out to the mixture at organic solvent mixed active carbon powder and titanium oxynitrides, vacuum drying is carried out at the temperature of 20 DEG C to 70 DEG C, fire at the temperature of 180 DEG C to 250 DEG C afterwards, thus manufacture the active carbon powder being supported with titanium oxynitrides.
The invention is characterized in, in active carbon powder, be supported with the above-mentioned titanium oxynitrides of 5 % by weight to 35 % by weight.If be greater than above-mentioned scope, then because adsorption capacity declines, thus there is no economy, if be less than above-mentioned scope, be then difficult to embody desired physical property.
Core (island component) and sheath portion (sea component) can all comprise the active carbon powder being supported with above-mentioned photochemical catalyst, but preferably, drop into the active carbon powder being supported with above-mentioned photochemical catalyst to sea component, thus the antibacterial of charcoal and deodoriging properties can be played to greatest extent.
Above-mentioned inorganic particulate is in the scope that can realize object of the present invention, do not limit kind, preferably, use the one being selected from zeolite, sial, calcium phosphate, basic zirconium phosphate, calcium carbonate, silica gel, titanium dioxide, zinc oxide, zirconium carbide, magnesia, silica and aluminium oxide or mix two or more use.
The average grain diameter of above-mentioned additive is 0.1 μm to 10 μm, and preferably, the average grain diameter of above-mentioned additive is 2 μm to 5 μm.If the average grain diameter of above-mentioned additive is less than 0.1 μm, be then difficult to the cleaning capacity obtained desired by the present invention, if the average grain diameter of above-mentioned additive is greater than 10 μm, then the hot strength of the bristles produced declines.
Relative to the macromolecule resin in the above-mentioned core of the formation of 100 weight portions or sheath portion, add the above-mentioned additive of 0.1 weight portion to 20 weight portion.If above-mentioned additive is less than 0.1 weight portion, is then concavo-convexly formed few due to desired, be thus difficult to obtain sufficient cleaning capacity, if above-mentioned additive is more than 20 weight portions, then make the intensity of fibril decline.Further, if core and sheath portion all comprise additive, then preferably, above-mentioned additive is added in the mode meeting above-mentioned scope respectively.
In order to also effectively block the propagation of microorganism, bacterium class in conditions of high humidity, bristles of the present invention can comprise more than one antibacterial material.Organic substance, inorganic substances all can be used as above-mentioned antibacterial material.
The inorganic matter that can be used as above-mentioned antibacterial material is, by the arbitrary carrying body in the inorganic particulate in above-mentioned additive and zeolite, sial, calcium phosphate, basic zirconium phosphate, calcium carbonate, silica gel, titanium dioxide, zinc oxide, zirconium carbide, magnesia, silica and aluminium oxide, support the inorganic matter of any one above metal ion being selected from gold, platinum, silver, copper, or be used alone above-mentioned metal ion or nano metal, or preferably use silver ion powder.
Here, the average grain diameter of above-mentioned inorganic substances is 0.1 μm to 10 μm, is preferably 2 μm to 5 μm.Further, when carrying out taper WEDM, above-mentioned inorganic matter, as undissolved material, plays the concavo-convex effect on the surface increasing bristles.
Above-mentioned silver ion powder is after adding silver to the natural glass composition that can be dissolved in water, after carrying out mixing at the temperature of about 1300 DEG C, disperseing, carry out quenching, thus manufacture with powder morphology, there is not the problem of oxidation, deposition, absorption etc. in Long-Time Service yet, mix with macromolecule resin even if having, the advantage of also easily dispersion.Further, owing to there is not the worry of silver ion stripping, thus have and not only play antibacterial ability at contact surface, in water, also can play the feature of antibacterial ability.
Although do not limit the form of the particle diameter of above-mentioned silver ion powder, size etc., be preferably, average grain diameter is 1 μm to 20 μm spherical.When carrying out taper WEDM, above-mentioned silver ion powder, also as insoluble matter, plays the concavo-convex effect increasing bristles surface.
As the organic substance that can be used as above-mentioned antibacterial material, as long as there is no toxicity to human body, then kind not circumscribed.Further, above-mentioned organic substance can add when being polymerized spinning macromolecule resin.
Above-mentioned organic substance can use chloride or the guanidine compound of alkyldimethylbenzylammonium chloride (benzalconium chloride), benzethonium chloride (benzethonium chloride), cetylpyridinium chloride (cetyl pyridinium chloride) etc.Preferably, use cetylpyridinium chloride (cetyl pyridinium chloride), 1, 1-cyclohexyl two (5-(4-chlorphenyl) biguanide hydrochloride (1, 1-Hexamethylene bis (5-(4-chlorophenyl) biguanide) hydrochloride), hexamethylene (Polyhexamethylene biguanide hydrochloride), 1-methyl-2-nitro-3-[(3-oxolane) methyl] guanidine (1-methyl-2-nitro-3 ((3-tetrahydrofuryl) methyl) guanidine), polytetramethylene guanidine (polytetramethyleneguanidinium), polyhexamethylene guanide (polyhexamethyleneguanidinium), polyhexamethylene guanide phosphate (Polyhexamethylene Guanidine Phosphate) etc.In the presence of moisture, form cation on the surface of bristles, this cationic mode of action is pull the anion being formed at microbial cell surface to electrically to above-mentioned organic antibacterial material, comes to destroy cell membrane based on gravitation.
Relative to the macromolecule resin in the above-mentioned core of the formation of 100 weight portions or sheath portion, add the above-mentioned antibacterial material of 0.1 weight portion to 10 weight portion, preferably, the organic antibacterial material of the mineral-type antibacterial material and 0.1 weight portion to 2 weight portion that mix 0.1 weight portion to 3 weight portion adds, more preferably, guanidine compound is used to be used as organic antibacterial material.
Further, the present invention is in order to form the fine fibril of Splittable, and the above-mentioned sea component of solubilized, only retains island component.Above-mentioned sea component is dissolved by more than one the aqueous slkali being selected from NaOH, ammonium hydroxide, calcium hydroxide and potassium hydroxide.For the length of dissolving above-mentioned sea component, free adjustment length can be dissolved in the scope that can realize object of the present invention, preferably, from the terminal part of above-mentioned bristles axially, dissolve the sea component of 1 to 90 length ratio of total length ratio, more preferably, from the terminal part of above-mentioned bristles axially, the sea component of 1 to 50 length ratio of total length ratio is dissolved.
Further, the present invention in order to be formed concavo-convex on the surface of bristles, and makes the terminal part of above-mentioned bristles attenuate, and aqueous slkali etc. can be used to carry out taper WEDM.In above-mentioned taper WEDM, different types of taper WEDM solution can be used according to the kind of the resin forming bristles, preferably, if above-mentioned macromolecule resin is the polyamide of nylon etc., then can use the acid solution or phenol etc. of hydrochloric acid, nitric acid, sulfuric acid etc., if above-mentioned macromolecule resin is polyester, then can use the aqueous slkali of NaOH, ammonium hydroxide, calcium hydroxide and potassium hydroxide etc.Above-mentioned taper WEDM solution can use more than one solution, and can carry out once above taper WEDM according to the kind of the macromolecule resin forming core and sheath portion.
Below, the manufacture method of bristles of the present invention is described.
The manufacture method of preferred bristles of the present invention can comprise: step a), manufactures the core-sheath-type fibril be made up of the core and sheath portion with inorganic particulate; Step b), cut off above-mentioned fibril; Step c), by above-mentioned steps b) in one end of fibril impregnated in the working groove that taper WEDM solution is housed; And steps d), by above-mentioned steps c) in the other end of fibril impregnated in the working groove that aqueous slkali is housed.
First, above-mentioned steps is a) for manufacturing the step of the core-sheath-type fibril be made up of core and sheath portion.Above-mentioned fibril can utilize the common spinning process of melt spinning, dry spinning, wet spinning, dry-jet wet-spinning etc., and the process through melting, extruding manufactures.Now, the spinning head being arranged at spinning-drawing machine comprises: spinning head distribution plate, and above-mentioned spinning head distribution plate has core segment at center, to prevent from engaging between island component macromolecule; Outlet, discharges for being polymerized the polymer that have passed multiple island component supply unit and sea component supply unit.And, in order to make the form of diverse of the section of above-mentioned fibril, the spinning head being arranged at spinning-drawing machine has the shape of circle, dumb-bell shape, cross, disc, gull-shaped, triangle, rectangle, hexagon, octagonal, rhombus and taper shape etc., and spinning-drawing machine uses composite spinning machine.The quantity of above-mentioned island component is 1 to 20, is preferably 2 to 10.If island component is more than 20, then because the diameter of island component becomes very thin, be thus difficult to obtain desired intensity.
Further, when manufacturing spinning solution, except above-mentioned antibacterial material or inorganic particulate, also can add dyestuff, carrying out spinning with mutually different Color pair core and sheath portion.In the scope that can realize object of the present invention, the kind not circumscribed of above-mentioned dyestuff, preferably, uses organic dyestuff or mineral-type pigment.Relative to total sea component spinning solution or the island component spinning solution of 100 weight portions, add the above-mentioned pigment of 0.01 weight portion to 2 weight portion.
Above-mentioned steps a) in melting, extrusion process be, by at the spinning-drawing machine of temperature being heated to 220 DEG C to 300 DEG C, the nozzle forming the spinning head (diameter is 0.5mm to 2mm) of multiple (32 to 300) above-mentioned shape extrudes.After extruding, in order to improve flexibility and the intensity of above-mentioned fibril, can comprise extension process, above-mentioned extension process is decided by winding speed, preferably, at the temperature of 150 DEG C to 220 DEG C, with 3 times to 6 times extensions.Preferably, implementation Process 1 time to 4 times is extended.
Preferably, above-mentioned steps a) in the thickness of compound fibril that manufactures be, the diameter of 0.02mm to 1.0mm.If be less than 0.02mm, then intensity declines, if be greater than 1.0mm, then produce and does not extend phenomenon, thus when causing brushing teeth, interdental penetration declines.
Then, above-mentioned steps b) for be breaking at above-mentioned steps a) in the step of compound fibril that produces.The mode that can perform in advance to restraint bundlees the process of above-mentioned compound fibril, and preferably, above-mentioned bundle thickness is 40mm to 60mm, this be conducive to easily carrying out after operation.
When carrying out taper WEDM, with identical with the length of finished product or cut off above-mentioned compound fibril than the mode of long about the 1mm to 20mm of the length of finished product.The compound fibril produced, after tapering process, is implanted in brush rod, manufactures toothbrush, should regulate the length of bundle for this reason.
Then, above-mentioned steps c) for by above-mentioned steps b) in one end of fibril of cutting off impregnated in the step of the working groove that aqueous slkali is housed.Now, if the macromolecule resin forming above-mentioned fibril is the polyamide of nylon etc., then can use the acid solution of hydrochloric acid, nitric acid, sulfuric acid etc. or the phenol etc. of 5 concentration % to 10 concentration % of 10 concentration % to 30 concentration %, if above-mentioned macromolecule resin is polyester, then can use the aqueous slkali of the NaOH of 20 concentration % to 40 concentration %, ammonium hydroxide, calcium hydroxide and potassium hydroxide etc.Preferably, at the temperature of 80 DEG C to 140 DEG C, perform above-mentioned taper WEDM.Now, according to the length of dipping, come adjustable by the length of taper WEDM.
Further, in the present invention, by regulating the number of times of dipping to regulate by the basal area of the other end of taper WEDM.Preferably, each dipping time of 10 seconds to 60 seconds, repeatedly flood 2 times to 20 times.By repeatedly flooding, more towards the other end, more attenuated by the basal area of the fibril of taper WEDM, thus the thin fibril of end section desired by the present invention can be manufactured.
Above-mentioned taper WEDM, not only reduces the basal area of the other end of above-mentioned fibril, but also is formed concavo-convex on the surface of fibril, thus can obtain the effect of the raising cleaning capacity desired by the present invention.This can carry out multiple adjustment to obtain according to the steeping length of the concentration of the time of above-mentioned taper WEDM, solution, fibril.
At above-mentioned steps d) in, by above-mentioned steps c) in one end of fibril impregnated in the working groove that taper WEDM solution is housed.Above-mentioned steps d) can with above-mentioned steps c) identical process carries out.
If above-mentioned taper WEDM terminates, the part be hydrolyzed is cleaned and removes, thus tapering portion can be formed.Clean in flowing water and clean to 3 times for 2 times, carrying out in the process of cleaning, also can comprise and utilize dilute sulfuric acid to the process making alkali neutralize.
If above-mentioned steps terminates, then additionally also can comprise at above-mentioned steps d) in the fibril that manufactures implant the step of brush rod.In the scope that can realize object of the present invention, the kind of above-mentioned brush rod and function not circumscribed.Above-mentioned brush rod can by more than one the material manufacture be selected from synthetic resin material, metal material, ceramic material, plastic material.Certainly, brush rod can be formed with single material, also can with after being made up of metal material, and the mode that this metal material covers the shell formed by elastomeric material is combined into by two or more materials, forms its material by any way also harmless.
The implanting portion of above-mentioned fibril can be formed at the centre of fibril, and according to shape and the implantation operation of brush rod, the implanting portion of above-mentioned fibril can Free Transform.
Below, with reference to accompanying drawing, based on preferred exemplary of the present invention, the present invention is described in more details.But in the process that the present invention will be described, in order to purport clearly of the present invention, omit the explanation of function to known or structure, above-mentioned explanation is only used for describing an example of the present invention in detail, and the present invention is not limited thereto.
Fig. 1 illustrates the section 10,20,30,40,50,60,70,80 of the monofilament of the bristles manufactured by the spinning head of the variform of a preferred exemplary of the present invention.Here, the circle 11,21,31,41,51,61,71,81 being positioned at the central authorities of each section represents core, and the part 12,22,32,42,52,62,72,82 of surrounding core represents sheath portion.
Fig. 2 is the stereogram of the bristles manufactured by the spinning head of 12 angular shape 30 in above-mentioned Fig. 1.The bristles 90 in left side illustrates the bristles not forming core and spinning, and the bristles 100 on right side illustrates the bristles formed by core 101 and sheath portion 102 of manufacturing method according to the invention manufacture.
Fig. 3 illustrates the form of the bristles in Fig. 2 being carried out to taper WEDM.Left side in Fig. 3 illustrates the form of the bristles 90 in above-mentioned Fig. 2 being carried out to taper WEDM, and the right side in Fig. 3 illustrates the form of the bristles 100 in above-mentioned Fig. 2 being carried out to taper WEDM.As shown in Figure 3, the bristles of manufacturing method according to the invention manufacture is formed concavo-convex on surface.
Fig. 4 to Fig. 7 illustrates the section 10,20,30,40 of the monofilament of the bristles manufactured by the spinning head of the variform of a preferred exemplary of the present invention.Each section can be represented by island component 11,21,31,41 and sea component 12,22,32,42, and above-mentioned island component and sea component are replaced mutually harmless.
Fig. 8 is the stereogram of the fibril of the section had in above-mentioned Fig. 6.Here, the left side in Fig. 8 illustrates the fibril removed before sea component 52, and the right side in Fig. 8 illustrates removes sea component 52 and the form externally exposed from established part of island component 51.
Identical with Fig. 8, Fig. 9 is the stereogram of the fibril of the section had in above-mentioned Fig. 7.Here, the left side in Fig. 9 illustrates the fibril removed before sea component 62, and the right side in Fig. 9 illustrates removes sea component 62 and the form only remaining island component 61 at established part.
Figure 10 and Figure 11 illustrates the toothbrush 130,140 being carried out by the fibril in above-mentioned Figure 11 implanting.First, the toothbrush 130 in Fig. 7 illustrates that the sea component of a part for implanting portion is not dissolved, and removes the form of the sea component of the end of fibril.The toothbrush of form as shown in Figure 7 has stronger elasticity, and the end of the fibril of miniaturization has pliability, thus improves cleaning capacity and to interdental penetration and the defencive function to tooth or gum.
Figure 11 illustrates and removes whole sea component, only the form of surplus island component.The toothbrush of form as shown in Figure 10 to be assigned to the bristles of the softness with the unique form by removing whole marine origin; can be used in without anchor (anchorless) toothbrush etc.; owing to having the form of the most applicable bristles of brushing teeth; thus, compared with ordinary toothbrush, improve the defencive function to gum.
Beneficial effect
The toothbrush manufactured by manufacture method of the present invention has the section of core sheath dual structure and variform, also comprise inorganic particulate, and carrying out taper WEDM is formed concavo-convex on bristles surface, thus compared with existing bristles, embodies more outstanding cleaning capacity and penetration.Further, by comprising mineral-type or organic antibacterial material, thus the semipermanent antibacterial ability being difficult to find in existing toothbrush can be had.
Accompanying drawing explanation
Fig. 1 illustrates the section of the bristles that preferred exemplary according to the present invention manufactures.
Fig. 2 is the stereogram of the bristles manufactured by 12 angular cross section 30 in the section of above-mentioned Fig. 1.
Fig. 3 is the stereogram of the bristles of the bristles in above-mentioned Fig. 2 being carried out to taper WEDM.
Fig. 4 to Fig. 7 illustrates the section of the bristles that preferred exemplary according to the present invention manufactures.
Fig. 8 is the stereogram of the fibril of the section had in above-mentioned Fig. 6.
Fig. 9 is the stereogram of the fibril of the section had in above-mentioned Fig. 7.
Figure 10 and Figure 11 is the side view bristles that preferred exemplary according to the present invention manufactures being carried out the toothbrush implanted.
(explanation of Reference numeral)
10,20,30,40,50,60,70,80: the section of bristles
11,21,31,41,51,61,71,81: core
12,22,32,42,52,62,72,82: sheath portion
90,100,110,120: fibril
101,121: core
102,122: sheath portion
111,123,133,143: jog
130,140: toothbrush
131,141: brush rod
132,142: fibril
Detailed description of the invention
Below, in order to more specifically describe the present invention, be described by embodiment, but the present invention is not limited to following embodiment.
The physical property of the toothbrush manufactured according to following embodiment is determined as follows.
(mensuration antibiotic property)
The fibril of the bristles taking the following embodiment of the formation of 50g and comparative example to use, and determine the sterilization slip of above-mentioned fibril and antibacterial slip according to the antibacterial degree determination method of Korean Industrial specification KS J 4206.Particularly, using staphylococcus aureus (Staphylococcus aureus) and Friedlander's bacillus (Klebsiella pneumoniae) as test organisms, and measure initial stage bacterial number (staphylococcus: 1.4 × 10 to above-mentioned fibril inoculation
5/ ml; Friedlander's bacillus: 1.8 × 10
5/ ml) and cultivate the bacterial number after 18 hours, and substitute into following formula 2 and formula 3 measures.
Formula 1
Formula 2
(here, Ma: the quantity of not adding the alive bacterium of sample after just inoculation of antibacterial material; Mb: the quantity of sample on the alive bacterium of cultivation after 18 hours of not adding antibacterial material; Mc: the quantity of sample on the alive bacterium of cultivation after 18 hours of adding antibacterial material.)
(consumer is to the preference degree of usability)
Select 50 experimental subjects, after the toothbrush manufactured by manufacture method of the present invention using specified time limit (7 days) and existing toothbrush, by survey, to brushing teeth, the projects such as sense, cleaning capacity, durability, flexibility are investigated, and its mean value is shown.
Embodiment 1
The weight average molecular weight preparing 2Kg is PETG (the poly butyleneterephthalate of 75000, PBT) material forming core is used as, the weight average molecular weight preparing 2Kg is the nylon (nylon) 6 of 40000, 12 are used as the material forming sheath portion, the average diameter preparing 80g is that the calcium carbonate of 10 μm (Korea S's light becomes chemistry) is used as forming concavo-convex material, prepare polyhexamethylene guanide phosphate (the Guacil TX of 80g, SK Chemical of Korea S) be used as antibacterial material, and put in forming the material of core and forming the material in sheath portion with the weight ratio of 5:5 respectively, and mix.The material forming core is dropped into the first extruder that temperature is 260 DEG C, the material forming sheath portion is dropped into the second extruder that temperature is 250 DEG C, combines in compound die mode, and discharge fibril by spinning head.The shape of spinning head is circular, and has manufactured core sheath maqting type fibril by spinning.Spun fibril, after supercooling, extension process, is manufactured into the fiber tow that diameter is 50mm.After cut off the fiber tow produced with the length of 30mm, impregnated in that temperature is 120 DEG C, concentration is the aqueous slkali of 30%, carry out taper WEDM.Dipping performs twice repeatedly.
To the fiber tow terminating dipping, will the other end of taper WEDM do not carried out, repeat in the same manner as above-mentioned tapering process, carry out taper WEDM.To terminating the fibril of taper WEDM, in flowing water, carry out twice washing, and with in dilute sulfuric acid and after re-start washing, thus produce end with the fiber tow through tapering process of awl apperance miniaturization.Measure the antibiotic property of the fiber tow produced, and be shown in table 1, produce the toothbrush implanting the above-mentioned fiber tow produced, measure usability, and be shown in table 2.
Embodiment 2
Shape except spinning head is except 12 dihedrals 30, utilizes the operation identical with embodiment 1 and condition to produce fiber tow.Measure the antibiotic property of the fiber tow produced, and be shown in table 1, produce the toothbrush implanting the above-mentioned fiber tow produced, measure usability, and be shown in table 2.
Embodiment 3
Weight average molecular weight except use 2Kg is the PETG (polyethyleneterephthalate of 40000, PET), outside the material being used as being formed core, the operation identical with embodiment 2 and condition is utilized to produce fiber tow.Measure the antibiotic property of the fiber tow produced, and be shown in table 1, produce the toothbrush implanting the above-mentioned fiber tow produced, measure usability, and be shown in table 2.
Embodiment 4
Except use the weight average molecular weight of 2Kg be 32000 nylon 6,10 be used as being formed outside the material in sheath portion, utilize the operation identical with embodiment 2 and condition to produce fiber tow.Measure the antibiotic property of the fiber tow produced, and be shown in table 1, produce the toothbrush implanting the above-mentioned fiber tow produced, measure usability, and be shown in table 2.
Embodiment 5
Except preparing polyhexamethylene guanide phosphate (the Guacil TX of 80g, SK Chemical) be used as antibacterial material, and the average grain diameter preparing 8g is the mineral-type antiseptic (CWT-A of 3 μm, Korea S JISHIM TECH), come to put in forming the material of core and forming the material in sheath portion and outside mixing, utilize the operation identical with embodiment 2 and condition to produce fiber tow with the weight ratio of 5:5 respectively.Measure the antibiotic property of the fiber tow produced, and be shown in table 1, produce the toothbrush implanting the above-mentioned fiber tow produced, measure usability, and be shown in table 2.
Embodiment 6
The weight average molecular weight preparing 2kg is PETG (the poly butylenetere phthalate of 75000, PBT) island component macromolecule is used as, the combined polymerization preparing 2kg has the polyethylene glycol-ester copolymer of the polyethylene glycol of 30 % by weight (weight average molecular weight: 40000) be used as sea component macromolecule, the average diameter preparing 80g is that the calcium carbonate of 10 μm (Korea S's light becomes chemistry) is used as forming concavo-convex material, prepare polyhexamethylene guanide phosphate (the Guacil TX of 80g, SK Chemical of Korea S) be used as antibacterial material, and put in sea component macromolecule and island component macromolecule with the weight ratio of 5:5 respectively and mix.Be set to that each sea component macromolecule and the high molecular weight ratio of island component are 50 % by weight (sea components): 50 % by weight (island components), and to the compound spinning-drawing machine supply of extrusion pressing type, under the spinning temperature of 280 DEG C, carry out spinning in the mode of the shape 30 forming the sea component 31 and island component 32 had in Fig. 6, thus produce monofilament.
The monofilament produced after supercooling, extending, by the monofilament sheave be wound, produces the fiber tow that diameter is 40mm in winding process.After cut off the fiber tow produced with the length of 30mm, temperature be 120 DEG C, the aqueous slkali of 30% concentration floods 30 minutes, dissolve sea component, and taper WEDM carried out to island component.To the other end not carrying out taper WEDM terminating the fiber tow flooded, repeat above-mentioned tapering process equally, make a return journey except sea component.To terminating the fibril of taper WEDM, in flowing water, carry out twice washing, and with in dilute sulfuric acid and after re-start washing, thus produce end with the fiber tow through tapering process of awl apperance miniaturization.Measure the antibiotic property of the fiber tow produced, and be shown in table 1, produce the toothbrush implanting the above-mentioned fiber tow produced, measure usability, and be shown in table 2.
Embodiment 7
Except in the manufacturing process of above-mentioned fibril, outside the spinning head of the shape 40 of the sea component 41 that utilization has in Fig. 7 and island component 42, the operation identical with embodiment 1 and condition is utilized to produce fiber tow.Measure the antibiotic property of the fiber tow produced, and be shown in table 1, produce the toothbrush implanting the above-mentioned fiber tow produced, measure usability, and be shown in table 2.
Comparative example 1
Use the PETG (PBT) of 2kg to be used as being formed the material of fibril, do not form outer side covers thing, carry out single spinning.Do not add and form concavo-convex material, the polyhexamethylene guanide phosphate adding 80g is used as antibacterial material, thus produces spinning solution.The temperature of spinning-drawing machine is 260 DEG C, and spinning head is circular.Spun fibril, after supercooling, extension process, is manufactured into the fiber tow that diameter is 50mm.Cut off after fiber tow with the length of 30mm, impregnated in that temperature is 120 DEG C, concentration is the aqueous slkali of 30%, carry out taper WEDM.Dipping carries out twice repeatedly.
To the other end not carrying out taper WEDM terminating the fiber tow flooded, repeat above-mentioned tapering process equally, carried out taper WEDM.To terminating the fibril of taper WEDM, in flowing water, carry out twice washing, and with in dilute sulfuric acid and after re-start washing, thus produce end with the fiber tow through tapering process of awl apperance miniaturization.Measure the antibiotic property of the fiber tow produced, and be shown in table 1, produce the toothbrush implanting the above-mentioned fiber tow produced, measure usability, and be shown in table 2.
Comparative example 2
Except not adding antibacterial material, the operation identical with comparative example 1 and condition is utilized to produce fiber tow.Measure the antibiotic property of the fiber tow produced, and be shown in table 1, produce the toothbrush implanting the above-mentioned fiber tow produced, measure usability, and be shown in table 2.
Table 1
Table 2
* metewand
5: very good
4: good
3: general
2: poor
1: non-constant
As shown in Table 1 above, compared with comparative example 2, the antibiotic property of embodiment 1 to embodiment 7 is obviously more outstanding.Further, compared with the embodiment 1 using circular spinning head and comparative example 1, use the antibiotic property of embodiment 2 to the embodiment 7 of spinning heads different with it slightly more outstanding.This is because, add by the surface area of the fibril of spinning, make to have that cationic antibacterial material is exposed to surface.
Further, as shown in Table 2 above, compared with comparative example 1 and comparative example 2, embodiment 1 to embodiment 7 presents obviously more outstanding numerical value in brush teeth sense and cleaning capacity.Especially, embodiment 5 to embodiment 7, with concavo-convex formation inorganic particulate and mineral-type antibacterial material, and adds the surface area of fibril, thus presents more outstanding cleaning capacity and antibacterial ability.
As mentioned above, the present invention not only has core sheath structure, also regulate the shape of spinning head with variform when carrying out spinning, thus the surface area of fibril can be increased, the concavo-convex of surface is formed by taper WEDM, and by regulating the basal area of terminal part of fibril, thus can manufacture there is outstanding antibacterial ability and the bristles of cleaning capacity.
Above, preferred embodiments of the present invention have been disclosed for illustrative, but also equivalent technical solutions can be able to be used to implement the present invention to the multiple change of the invention process, and can carry out suitable distortion to above-described embodiment and apply in an identical manner, this is very clear and definite.Therefore, foregoing not delimit the scope of the invention, and scope of the present invention is determined by the boundary of inventing claimed scope.
Claims (11)
1. a manufacture method for bristles, is characterized in that, comprising:
Step a), manufactures the core-sheath-type fibril be made up of core and sheath portion;
Step b), cut off described fibril;
Step c), by described step b) in one end of fibril impregnated in the working groove that taper WEDM solution is housed; And
Steps d), by described step c) in the other end of fibril impregnated in the working groove that aqueous slkali is housed.
2. the manufacture method of bristles according to claim 1, is characterized in that,
The section of described bristles is any one in dumb-bell shape, cross, disc, gull-shaped, triangle, rectangle, rhombus and taper shape.
3. the manufacture method of bristles according to claim 1, is characterized in that,
The section of described bristles is of being selected from circle, dumb-bell shape, cross, disc, gull-shaped, triangle, rectangle, rhombus and taper shape.
4. the manufacture method of bristles according to claim 1, is characterized in that,
Described core or sheath portion are by polyester, thermoplastic elastomer, elastomer, silicone, bio-based epoxy resin, polyformaldehyde, nylon 4, nylon 6, nylon 7, nylon 9, nylon 11, nylon 12, nylon 4,6, nylon 6,6, nylon 6,10, nylon 6,12 and polyester copolymer macromolecule resin in any one above macromolecule resin composition.
5. the manufacture method of bristles according to claim 1, is characterized in that,
Both described core, sheath portion or core and sheath portion also comprise additive, and described additive package is containing organic filler, inorganic particulate or their mixture.
6. the manufacture method of bristles according to claim 5, is characterized in that,
Described organic filler be selected from green tea, barley young shoot extract, ginkgo biloba p.e, Folium Pini extract, bamboo extractive, active carbon, xylitol and water soluble polymer one or more,
Described inorganic particulate be selected from zeolite, sial, calcium phosphate, basic zirconium phosphate, calcium carbonate, silica gel, two titanium dioxide, zinc oxide, zirconium carbide, magnesia, silica and aluminium oxide one or more.
7. the manufacture method of bristles according to claim 6, is characterized in that,
Described inorganic particulate is also supported with one or more the metal be selected from gold, silver, platinum and copper.
8. the manufacture method of bristles according to claim 5, is characterized in that,
The average grain diameter of described additive is 0.1 μm to 10 μm.
9. the manufacture method of bristles according to claim 1, is characterized in that,
Relative to both the described core of 100 weight portions, sheath portion or core and sheath portion, also add the antibacterial material of 0.1 weight portion to 10 weight portion.
10. the manufacture method of bristles according to claim 9, is characterized in that,
Described antibacterial material is guanidine compound or silver ion powder.
11. 1 kinds of toothbrushes, is characterized in that, utilize the bristles that the manufacture method of the bristles be selected from according to any one of claim 1 to 10 manufactures.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2012-0109887 | 2012-10-04 | ||
| KR1020120109887A KR101401023B1 (en) | 2012-10-04 | 2012-10-04 | Manufacturing method of toothbrush bristle and using the same |
| KR10-2013-0102757 | 2013-08-28 | ||
| KR1020130102757A KR101501438B1 (en) | 2013-08-28 | 2013-08-28 | Manufacturing method of toothbrush bristle and using the same |
| PCT/KR2013/008890 WO2014054911A2 (en) | 2012-10-04 | 2013-10-04 | Method for manufacturing bristles on toothbrush and toothbrush using same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104902785A true CN104902785A (en) | 2015-09-09 |
| CN104902785B CN104902785B (en) | 2017-03-22 |
Family
ID=50435543
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201380063230.6A Active CN104902785B (en) | 2012-10-04 | 2013-10-04 | Method for manufacturing bristles on toothbrush and toothbrush using same |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20150257525A1 (en) |
| CN (1) | CN104902785B (en) |
| DE (1) | DE112013004903T5 (en) |
| WO (1) | WO2014054911A2 (en) |
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| CN109402216A (en) * | 2017-08-17 | 2019-03-01 | 宝洁公司 | Method for demonstrating the efficacy against bacteria of toothbrush bristle |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN104902785B (en) | 2017-03-22 |
| WO2014054911A3 (en) | 2014-05-22 |
| US20150257525A1 (en) | 2015-09-17 |
| WO2014054911A2 (en) | 2014-04-10 |
| DE112013004903T5 (en) | 2015-07-09 |
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