Classifications

• • A—HUMAN NECESSITIES
  • A46—BRUSHWARE
  • A46B—BRUSHES
  • A46B3/00—Brushes characterised by the way in which the bristles are fixed or joined in or on the brush body or carrier
  • A46B3/16—Brushes characterised by the way in which the bristles are fixed or joined in or on the brush body or carrier by wires or other anchoring means, specially for U-shaped bristle tufts
• • A—HUMAN NECESSITIES
  • A46—BRUSHWARE
  • A46B—BRUSHES
  • A46B9/00—Arrangements of the bristles in the brush body
  • A46B9/02—Position or arrangement of bristles in relation to surface of the brush body, e.g. inclined, in rows, in groups
  • A46B9/04—Arranged like in or for toothbrushes
• • A—HUMAN NECESSITIES
  • A46—BRUSHWARE
  • A46B—BRUSHES
  • A46B2200/00—Brushes characterized by their functions, uses or applications
  • A46B2200/10—For human or animal care
  • A46B2200/1066—Toothbrush for cleaning the teeth or dentures

Definitions

• the present invention relates to a flat-line flocked toothbrush which is excellent in interdental penetration, plaque removing function, and appearance discrimination, and has good hairiness.
• a flat-line flocking type toothbrush uses a metal piece or a plastic piece called a flat wire to fold the hair bundle into two and drive the hair into the flocking hole.
• the flocked holes formed on the head portion flocked surface are circular with a diameter of 1.5 to 2.2 mm, and the distance between adjacent flocked holes is 1.0 mm or more.
• the number of bristle bundles to be transplanted is 16 to 60 brushes per hole (32-120 in folded number), and the total brush cross-sectional area per hole in the folded state is 1. It was common to use a thick hair bundle of 0 mm 2 or more.
• the distance between adjacent flocked holes had to be 1.0 mm or more in relation to strength, and there were many restrictions on the design, resulting in poor novelty and low discrimination in appearance. . For this reason, In addition, the products were differentiated by devising the shapes and colors of the head and handle.
• the width of the flocking table is set to 8 mm or less, and a bristle bundle is set in parallel with the longitudinal direction of the handle.
• a toothbrush is shown in which four or more rows are arranged and the outer bristle bundle is softer than the inner bristle bundle.
• this toothbrush softens the outer brush mainly from the viewpoint of safety for the mucous membrane in the mouth when brushing the teeth by the bath method, and differs from the present invention in its technical idea. No investigation has been made on the relationship between the pore edge spacing and the cross-sectional area of the brush to be implanted.
• Japanese Patent Publication No. 2000-02-100834 discloses that hairs having different hardness directions are selected by combining the directions of the long holes, which are the flocking holes, so that the directions of the long axes are different. Toothbrushes in which bundles are arranged in a mixed manner further increase the number of bristles from the brush base as disclosed in Japanese Patent Application Laid-Open No. H10-302793. Toothbrushes are shown, each of which protrudes and has a large number of bristles including at least a plurality of bristles having an oval cross section. Has not been considered at all.
• the conventional flat-line flocking type toothbrush employs a large flocking hole because of the bristle of flocking, and the interval between adjacent flocking holes is set to be wide. As a result, the hair bundles used become thicker and the spacing between the planted hair bundles tends to increase.
• the present invention provides a head portion having a flocked surface with a flocked hole formed therein, and a hair bundle including a plurality of brushes, each of which is provided with a flocked hole on the flocked surface.
• a toothbrush having a plurality of hair bundles folded in two and implanted with a flat line, at least a part of the implanted hole has a hole edge interval between any nearest implanted implanted hole. 0 mm or less, and each of the bristle bundles planted in at least a part of the flocking holes has a total cross-sectional area of the folded brush portion of 1.0 mm 2 or less per hole. It is set as follows.
• the total cross-sectional area of the brush portion is preferably in the range of 0.10 to 0.70 mm 2 per flocked hole.
• the hole edge distance between at least a part of the flocking holes and the nearest flocking hole is preferably in the range of 0.25 to 0.70 mm.
• the number of brushes can be appropriately set according to the design toothbrush specifications, brush diameter, cross-sectional shape, and the like.
• the sum of the cross-sectional areas of the brush to be planted in a single bristle holes exceed 1. 0 mm 2 In such a case, the strength of the hair bundle becomes large, so that the hair bundle becomes highly rigid and the flexibility of the hair bundle extremely decreases, which is not preferable.
• the fine bristle bundles are arranged at optimal intervals, so that each brush can easily reach the teeth and gingiva, and the reach of the bristles to the site where oral diseases are likely to occur is improved. You.
• hair bundles consisting of a small number of brushes, continuous movement of thin hair bundles, which was impossible in the past, can be exhibited, and excessive load on the oral mucosa such as the cervix and interdental papillae It is possible to express the plaque removal and gingival massage functions without applying dentition.
• the toothbrush of the present invention is excellent in the plaque removing function at a site where oral diseases are likely to occur, has high safety against oral soft tissues, and is also excellent in appearance discrimination and usability.
• the cross-sectional shape of the above-mentioned flocking hole may be a commonly used circle or square. It is preferable to have a modified hole shape having a short side direction) and a long axis direction (long axis or long side direction). In this case, it is desirable to use, as the flocking hole, a flocking hole having a hole shape whose dimensional ratio in the major axis direction to the minor axis direction is larger than 1.0. Les ,.
• by setting the arrangement by variously combining the directions of the flocking holes it is possible to design the specifications according to the desired feeling of contact with the hair and the feeling of actual brushing.
• the appearance of the bristle bundle from the side can be changed.
• the diameter of the circumscribed circle with respect to the cross section of the hair bundle and the short axis direction of the hair implantation hole are matched to reduce the space between the hair implantation hole and the hair bundle. This makes it possible to create a flocked portion with excellent hairiness.
• the brush section to be used is circular, it is more preferable that the shape of the flocking hole is substantially elliptical, substantially oblong, or substantially rectangular.
• Polystyrene resin PS
• polypropylene resin PP
• polyethylene terephthalate resin PET
• saturated polyester resin alpha-modified polycyclohexylene dimethylene terephthalate resin
• Polymer [P .CTA] glycol-modified polycyclohexylene dimethylene terephthalate copolymer [PCTG], acrylonitrile butadiene styrene resin (ABS), cellulose propionate resin (CP), polyarylate resin
• Materials such as polycarbonate resin (PC), acrylonitrile styrene resin (AS), polyacetal resin (POM), polybutylene terephthalate resin (PBT), and polyethylene naphthate resin (PEN) can be used alone or in combination.
• the types of brushes include regular round bristles (brushes with rounded ends), tapered bristles (brushes with tapered ends), diamond bristles (brushes with a rhombic cross section), and bristles Feather-shaped brushes), irregularly shaped hairs (brushes with non-circular cross-sections), gray hairs (brushes with abrasives), spiral catch hairs (spiral grooves are formed)
• Various types of brushes can be used, for example, brushes for indigo and brushes for indigo (a brush that has a double-core sheath structure in which the outer layer is colored and indicates the replacement time by wear of the outer layer). The type of the brush is not limited to these.
• the hair bundle tip surface can be made a single plane, Shape or uneven shape. Furthermore, a different hair bundle configuration may be used at the outer and inner sides of the flocked surface and at the front and rear ends.
• FIG. 6 is a schematic enlarged plan view of a head portion of the toothbrush according to the fourth embodiment.
• FIG. 23 is a schematic enlarged plan view of a head portion of the toothbrush according to the embodiment 21.
• FIG. 24 is a schematic enlarged plan view of a head portion of the toothbrush according to the embodiment 22.
• FIG. 25 is a schematic enlarged plan view of a head portion of the toothbrush according to the embodiment 23.
• FIG. 26A is an enlarged plan view schematically showing the toothbrush according to the embodiment 24, and
• FIG. 26B is an enlarged plan view of a head part in the embodiment.
• Fig. 2A shows an example where the hole shape of the flocking hole 4 is oval, the cross-sectional shape of the brush 2 is circular, and the flat wire 3 is driven along the longitudinal direction of the flocking hole 4 that becomes an oval shape.
• B is an example where the hole shape of the flocking hole 4 is rectangular, the cross-sectional shape of the brush 2 is circular, and the flat line 3 is driven along the longitudinal direction of the rectangular flocking hole 4, and FIG.
• the hole of pore 4 is rectangular with rounded corners
• the cross-sectional shape of brush 2 is rhombus (so-called diamond shape)
• flat wire 3 is driven along the longitudinal direction of rectangular flocking hole 4 with rounded corners
• the shape of the flocking hole 4 is circular
• the cross-sectional shape of the brush 2 is circular
• the flat line 3 is circular
• Fig. 2E shows the shape of the flocked hole 4 in a circular shape.
• the brush 2 having a rectangular cross section is formed by driving the flat wire 3 along a predetermined direction (for example, the longitudinal direction of the head portion or a direction perpendicular to the longitudinal direction) into a rectangular cross section. This shows an example in which they are arranged in parallel with the flat line 3.
• a predetermined direction for example, the longitudinal direction of the head portion or a direction perpendicular to the longitudinal direction
• Example 6 shown in FIG. 8 a bundle of eight brushes having a brush diameter of 7 mi 1 (0.178 mm) is folded and implanted in the oval implanted holes 4 in a rectangular shape.
• the bristles consisting of six brushes with a brush diameter of 8 mi 1 (0.203 mm) are folded into two and planted in the bristles 4 of the bristles, and the total cross-sectional area of the bristles per bristles is is it 0. 50mm 2 and 0. 39mm 2.
• the flocking holes 4 satisfying the conditions of the present invention and the flocking holes 6 according to the conventional specifications are provided in combination.
• Table 1 a bristle bundle consisting of a predetermined number of brushes having a brush diameter of 5 mi 1 (0.127 mm) to 8 mi 1 (0.203 mm) is planted in the flocking hole 4 satisfying the conditions of the present invention.
• the total sum of the cross-sectional areas of the brushes per flocking hole is 1.0 mm 2 or less.
• a hair bundle consisting of a predetermined number of brushes having a brush diameter of 5 mi 1 (0127 mm) to 9 mi (0.229 mm) is planted in the flocking hole 6 of the conventional specification.
• the sum of the cross-sectional areas of the printing hair per One is a 1. 5 ⁇ 2. 46 mm 2.
• the plaque removal effect, sensory evaluation, and overall evaluation in Table 4 were based on the following criteria.
• the plaque removal rate was calculated by the following equation. Plaque occupied area was determined by image analysis.
• Plaque removal rate (%) ⁇ 1— (Plaque occupied area after brushing / Plaque occupied area before brushing) ⁇ X 100
• ⁇ Total plaque removing effect and sensory evaluation ⁇ : 1 to 2 or ⁇ : 3 or more
• ⁇ X is 1 to 2 in total of plaque removing effect and sensory evaluation
• Toothbrush used Comprehensive evaluation Tooth neck Pit and fissure Comfortable Interdental penetration Appearance discrimination

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• Brushes (AREA)

Priority Applications (4)

Applications Claiming Priority (4)

Publications (1)

Family

ID=31190344

Family Applications (1)

Country Status (6)

Cited By (6)

Families Citing this family (11)

Citations (5)

Family Cites Families (1)

• 2003
  • 2003-06-27 JP JP2003185010A patent/JP2004121823A/ja not_active Withdrawn
  • 2003-07-30 CN CN038183846A patent/CN1671315B/zh not_active Expired - Lifetime
  • 2003-07-30 WO PCT/JP2003/009636 patent/WO2004010821A1/ja active Application Filing
  • 2003-07-30 KR KR1020057001558A patent/KR101087955B1/ko active IP Right Grant
  • 2003-07-30 AU AU2003252722A patent/AU2003252722A1/en not_active Abandoned
• 2006
  • 2006-02-15 HK HK06101956.4A patent/HK1081413A1/xx not_active IP Right Cessation

Patent Citations (5)

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