CN115363334A

CN115363334A - Tooth brush

Info

Publication number: CN115363334A
Application number: CN202110545967.8A
Authority: CN
Inventors: 潘楚斌; 梁健华; 黄晓文; 蒋船银
Original assignee: Hawley & Hazel Bvi Co ltd
Current assignee: Hawley & Hazel Bvi Co ltd
Priority date: 2021-05-19
Filing date: 2021-05-19
Publication date: 2022-11-22

Abstract

The invention relates to a toothbrush, which comprises a planting hole, wherein a first pressure F of a single bundle of hair bundles on the planting hole ₁ The range of (1) is 0.055N to 0.197N. The invention provides a toothbrush, when the first pressure F of a single bundle of hair on a hair planting hole ₁ When the range of (1) is 0.055N to 0.197N, the toothbrush of the invention can relieve the pressure on the gum during tooth brushing and has good cleaning effect.

Description

Tooth brush

[ technical field ] A method for producing a semiconductor device

The invention relates to the technical field of toothbrushes, in particular to a toothbrush.

[ background of the invention ]

The toothbrush is used as a tooth cleaning tool, teeth can be well protected by cleaning the oral cavity, the toothbrush can clean stains on the teeth by swinging the bristles back and forth, once the toothbrush is used for brushing teeth in daily life, once the toothbrush is used too hard, bleeding of gum is easily caused, particularly people with gum allergy, at present, the toothbrush for people with gum allergy in the market is mainly of the type of 'ten thousand bristles', the diameter of a brush wire is usually 0.07-0.12 mm, the mode can reduce the pressure of the bristles on the gum, the bristles are too dense and have no gap, the swinging amplitude of the bristles is reduced, and the cleaning effect is also correspondingly reduced. Besides, the shape of the toothbrush, the shape, the specification, the distribution and the like of implanted pores influence the mouthfeel during tooth brushing, and the investigation of people with gingival allergy finds that the toothbrush with dense brushing wires can improve the gingival bleeding problem. When a user uses the toothbrush for brushing teeth, the bristles are stressed and bent, so that pressure is generated on the oral cavity, the pressure of the bristle bundles is reduced, the gum can be protected, and the cleaning power of the toothbrush can be improved by adjusting the gaps among the bristle bundles.

[ summary of the invention ]

The invention integrates controllable factors influencing the tooth brushing taste and other factors, provides a technical scheme which can relieve the pressure on gum when in tooth brushing and has good cleaning power for people who are sensitive in oral cavity, and provides the toothbrush.

The invention is realized by the following technical scheme:

a toothbrush comprises a planting hole, a first pressure F of a single bundle of hair on the planting hole ₁ The range of (1) is 0.055N to 0.197N.

The toothbrush has the advantages that the density D of the implanted holes ranges from 25/cm ² Less than or equal to 60 pieces/cm ² 。

The toothbrush has the advantages that the surface area S of the implanted holes ranges from 0.045mm ² ～1.69mm ² 。

According to the toothbrush, the gap H between the implanted holes ranges from 0.4mm to 0.8mm.

In the toothbrush, the first pressure F of the single hair bundle on the hair planting hole ₁ And a second pressure F ₂ Has a range of F ₁ ×F ₂ ＝0.0015N ² ～0.0085N ² 。

In a toothbrush as described above, the first pressure F of the single tuft of bristles in the tuft hole ₁ And a second pressure F ₂ Has a range of F ₁ ×F ₂ ＝0.0010N ² ～0.0300N ² 。

Compared with the prior art, the invention has the following advantages:

1. the invention provides a toothbrush, which comprises a planting hole, and a first pressure F of a single bundle of hair bundles on the planting hole ₁ The range of (1) is 0.055N to 0.197N. First pressure F of single bundle of hair on the hair-planting hole ₁ When the range of (1) is 0.055N to 0.197N, the toothbrush of the invention can relieve the pressure on the gum during tooth brushing and has good cleaning effect.

2. Solves the problem that the tooth brushing of people with sensitive gum is easy to cause allergic bleeding. Compared with the traditional intensive toothbrush, the cleaning effect is better. Has the characteristics of multiple hair planting holes, dense hair bundles and small pressure on gum during tooth brushing. The gaps between the implanted pores are small, and the pressure of single hair bundles is small.

[ description of the drawings ]

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a flow chart of the steps of a method for testing tuft pressure in a toothbrush;

FIG. 2 is a first schematic view of a toothbrush mounted on a pressure tester in a tuft pressure test method for a toothbrush;

FIG. 3 is a second schematic view of a toothbrush mounted on a pressure tester in a tuft pressure test method for toothbrushes;

figure 4 is a schematic view of a toothbrush head configuration.

[ detailed description ] embodiments

In order to make the technical solutions and the advantages of the technical problems solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

When embodiments of the present invention refer to "first", "second", etc. ordinal terms, it should be understood that they are used for distinguishing purposes only, unless the context clearly dictates otherwise.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in a specific case to those of ordinary skill in the art.

The embodiment of the invention provides a toothbrush, which comprises an implanting hole, wherein a first pressure F of a single bundle of hair bundles on the implanting hole ₁ The range of (1) is 0.055N to 0.197N. First pressure F of single bundle of hair on the hair planting hole ₁ When the range of (1) is 0.055N to 0.197N, the toothbrush of the invention can relieve the pressure on the gum during tooth brushing and has good cleaning effect.

Further, as a preferred embodiment of the present solution, but not limiting thereto, the density D of said implanted pores ranges from 25/cm ² Less than or equal to 60 pieces/cm ² 。

Further, as a preferred embodiment of the present invention, but not limited thereto, the surface area S of the implant pores ranges from 0.045mm ² ～1.69mm ² 。

Further, as a preferred embodiment of the present invention, but not limited thereto, the gap H between the implant holes is in the range of 0.4mm to 0.8mm. The gap between the implanted pores refers to the distance from one edge of a single implanted pore to the nearest edge of the adjacent implanted pore, and the edge can be up, down, left and right.

Further, as a preferred embodiment of the present solution, but not limited thereto, the first pressure force F of the single bundle of hair bundle on the implantation hole ₁ And a second pressure F ₂ Range of products of F ₁ ×F ₂ ＝0.0015N ² ～0.0085N ² 。

Further, as a preferred embodiment of the present solution, but not limited thereto, when the surface area S of the implanted pores is in the range of 0.045mm ² ～1.69mm ² While the first pressure F of the single bundle of hair on the planting hole ₁ And a second pressure F ₂ Range of products of F ₁ ×F ₂ ＝0.0010N ² ～0.0300N ² 。

Further, as a preferred embodiment of the present invention, but not limited thereto, the gap H between the tufting holes, when the gap H ranges from 0.4mm to 0.8mm, the first pressure F of the single bundle of hair bundle on the tufting holes ₁ And a second pressure F ₂ Range of products of F ₁ ×F ₂ ＝0.0010N ² ～0.0300N ² 。

As shown in fig. 2 and 3, the toothbrush 1 is fixed to the pressure tester 2 such that the pressurizing module 3 corresponds to bristles. The dimensions of the contact surface of the pressing module 3 with the bristles in this embodiment are length × width =3cm × 5cm.

The embodiment also provides a method for testing the tuft pressure of the toothbrush, which comprises the following steps:

s1, measuring a toothbrush, wherein the toothbrush at least comprises any one of density D of implanted pores, surface area S of the implanted pores and gaps H among the implanted pores;

s2, fixing the toothbrush, enabling the bristle planting surface of the toothbrush to face upwards, and horizontally placing the bristle surface;

s3, setting a zero point, moving a pressure applying module on the pressure tester downwards to be in contact with the bristle surface of the toothbrush, and enabling the pressure tester to reach a preset maximum pressure value F ₀ When the pressure is measured, the pressure tester is reset to zero;

s4, setting parameters including setting a first downward movement distance and a first downward speed of the pressing module and a first stay time length for staying on the bristles;

s5, recording the maximum pressure value F _max1 When the pressure applying module stays on the brush hair, the maximum reading of the pressure tester is taken as the maximum pressure value F _max1 ；

S6, calculating the first pressure F of the single-bundle hair bundle ₁ In which F is ₁ ＝(F _max1 -F ₀ ) And N is the total number of the hair planting holes.

The invention also provides a method for testing the pressure of the toothbrush hair bundles, and the method for testing the pressure of the toothbrush hair bundles can be used for calculating the first pressure F of the single hair bundle ₁ By measuring a first pressure F of the toothbrush ₁ Can be passed through the first pressure F of the toothbrush ₁ The physical parameter determines whether the toothbrush can relieve pressure on gum during brushing and has good cleaning effect.

Further, as a preferred embodiment of the present invention, but not limited thereto, the following steps are performed after step S6:

s7, testing the second pressure F of the single-bundle hair bundle ₂ ；

S8, calculating F ₁ ×F ₂ The value of (c).

Further, as a preferred embodiment of the present invention, but not limited thereto, the step S7 further includes the steps of:

s701, setting parameters including setting a second downward movement distance and a second downward speed of the pressing module and a second stay time length of the brush hair;

s702, recording a maximum pressure value F _max2 When the pressure applying module stays on the brush hair, the maximum reading of the pressure tester is taken as the maximum pressure value F _max2 ；

S703, calculating a second pressure F of the single bundle of hair bundles ₂ In which F ₂ ＝(F _max2 -F ₀ ) And N is the total number of the hair planting holes.

Further, as a preferred embodiment of the present solution, but not limited thereto, step S1 includes a test method of the density D of the implanted pores:

s101, measuring the length and width of the hair-planted surface, and measuring the farthest distances between the hair-planted holes at the upper end, the lower end, the left end and the right end of the toothbrush head by using a vernier caliper to respectively serve as the length L of the hair-planted surface ₁ And width L ₂ ；

S102, calculating the density D of the implanted pores, wherein D = N/S (pieces/cm) ² ) Planting of plantsArea of rough surface S = L ₁ ×L ₂ And N is the total number of the hair planting holes.

Further, as a preferred embodiment of the present invention, not by way of limitation, the range of the surface area S is 0.045mm ² ～1.69mm ² Or when the gap H is in the range of 0.4mm to 0.8mm, F ₁ ×F ₂ ＝0.0010N ² ～0.0300N ² 。

A toothbrush of the present invention was tested using a toothbrush tuft pressure test method as follows:

the first embodiment is as follows:

1. the toothbrush has the feature that the first pressure F of the individual tufts can be measured through steps S1 to S6 ₁ ，F ₁ The range of 0.020N to 0.200N is satisfied.

The operation process from step S1 to step S6 is specifically as follows: the toothbrush head is characterized in that the bristle planting surface is arranged above the toothbrush head, the toothbrush head is fixed on a horizontal plane, the toothbrush head is ensured not to shake up and down left and right, a pressure applying module is arranged right above the toothbrush head, a pressure tester is connected onto the module, the pressure applying module is slowly moved downwards during testing, the module is moved downwards to be in contact with the bristle surface, and the maximum pressure value F during contact is set ₀ Setting the pressure tester to zero when the pressure tester is 0.45N +/-0.02N, then setting the downward moving distance of the pressure application module, setting the first descending speed to be 50mm/min, the first descending distance to be 1.5mm, when the pressure application module descends by 1.5mm, the first staying time is 5 seconds, and recording the reading F of the maximum pressure tester at the moment _max1 And N = the total number of the hair planting holes. In order to improve the measurement accuracy, in the actual test, 5 independent products are taken, the pressure of the single-bundle hair bundle of each product is tested, the pressure of the single-bundle hair bundle is respectively obtained, and the average value is obtained to be used as the first pressure F of the single-bundle hair bundle ₁ ＝(F _max1 -F ₀ ) and/N. First pressure F ₁ The average value is obtained by measuring for many times, but in order to avoid the change of the physical property of the brush hair caused by measuring for many times, the measuring time is not more than 3 times.

Example two:

1. through steps S7 to S8, the pressure F of the single-tuft hair bundle can be measured ₂ ，F ₁ ×F ₂ The following ranges are satisfied: 0.0010N ² ～0.0250N ² 。

The operation process from step S7 to step S8 is specifically as follows: in step S4, after the first dwell time period ends, the pressing module is in a state of being away from the brush. Setting the downward movement distance of the pressurizing module, setting the second descending speed to be 50mm/min, setting the second descending distance to be 1.0mm, when the pressurizing module descends by 1.0mm, setting the second staying time to be 5 seconds, and recording the reading F of the maximum pressure tester at the moment _max2 N = total number of holes for inserting bristles, pressure F of single tuft ₂ ＝(F _max2 -F ₀ ) and/N. The first and second descent speeds, and the first and second stay periods are kept in agreement.

Example three:

1. the toothbrush has the feature that the first pressure F of the individual tufts can be measured through steps S1 to S6 ₁ ，F ₁ The range of 0.03N to 0.185N is satisfied.

In addition, the following measurements were made for the toothbrushes of examples one to three:

1. the density D of the implanted bristles Kong Manzu is obtained by the brush head, and the D satisfies the range of 25/cm through the calculation from the step S101 to the step S102 ² Less than or equal to 60 pieces/cm ² 。

The operation process from step S101 to step S102 is specifically as follows: the distance between the most circular bristle planting holes at the upper end, the lower end, the left end and the right end of the toothbrush head is measured by a vernier caliper and is respectively used as the length L of the bristle planting surface ₁ And width L ₂ Area of the hair-planted surface S = L ₁ ×L ₂ N = total number of hair-planting holes, D = N/S (number of hairs/cm) ² )。

2. D satisfies the range of 25/cm ² Less than or equal to 60 pieces/cm ² Under the condition that the first pressure F of the single tuft can be measured through the steps S1 to S6 ₁ ，F ₁ The range of 0.020N to 0.250N is satisfied.

3. The surface area S of the implanted pores is in the range of 0.045mm ² ～1.69mm ² 。

4. Gaps H among the implanted pores are 0.4 mm-0.8 mm.

5. Through steps S7 to S8, the pressure F of the single-tuft hair bundle can be measured ₂ ，F ₁ ×F ₂ The following ranges are satisfied: f ₁ ×F ₂ ＝0.0015N ² ～0.0085N ² 。

6. And (3) or (4) satisfies 8.

The following are the toothbrushing mouthfeel test and the tooth cleaning power test for the toothbrush of the present invention:

in the test process, the hair planting holes are defined and used for fixing single-bundle hair bristles, gaps exist between the hair planting holes and the hair planting holes, and if no obvious gap exists, the hair planting holes are uniformly identified as the same hair planting hole.

Because the zero point position needs to be pressed down in the test process, the pressure value F is arranged at the zero point position ₀ The number of the brush filaments is 0.45N +/-0.02N, so that the tested toothbrush is required to be clean in hair surface, and errors can be generated in the test if a single brush filament protrudes.

1. Five toothbrushes of the present invention were selected as implementation cases for testing:

example 1:

the bristle material is PBT, the number of the planting holes is 114, and the average density of the planting holes is 52.50/cm ² The shape of the plant hair hole is a square with the side length of 0.8mm, and the material of the toothbrush head is PCTA copolymer (the PCTA copolymer is cyclohexane dimethanol and terephthalic acid).

Example 2:

the bristle material is PBT, the number of the bristle planting holes is 100, and the average density of the bristle planting holes is 37.13/cm ² The shape of the plant hair hole is a square with the side length of 1.0mm, and the material of the brush head is PCTA copolymer (the PCTA copolymer is cyclohexane dimethanol and terephthalic acid).

Example 3:

the bristle material is PBT, the number of the planting holes is 76, and the average density of the planting holes is 29.79/cm ² The shape of the plant hair hole is a square with the side length of 1.2mm, and the material of the brush head is PCTA copolymer (the PCTA copolymer is cyclohexane dimethanol and terephthalic acid).

Example 4:

the bristle material is PBT, the number of the planting holes is 87, and the average density of the planting holes is 34.26/cm ² The shape of the hair planting hole is a square with the side length of 1.0mm, and the material of the brush head isPCTA copolymer (PCTA copolymer is cyclohexanedimethanol and terephthalic acid).

Example 5:

the bristle material is PBT, the number of the planting holes is 67, and the average density of the planting holes is 30.67 per cm ² The shape of the plant hair hole is a square with the side length of 1.0mm, and the material of the brush head is PCTA copolymer (the PCTA copolymer is cyclohexane dimethanol and terephthalic acid).

2. In addition, five toothbrushes on the market are selected as comparison cases for comparison:

comparative example 1:

the bristle material is PBT, the number of the planting holes is 29, and the average density of the planting holes is 12.01 per cm ² The shape of the plant hair hole is an ellipse with the side length of 1.0X1.2mm, and the material of the brush head is PBT (polybutylene terephthalate).

Comparative example 2:

the bristle material is PA, the number of the planting holes is 40, and the average density of the planting holes is 15.07/cm ² The shape of the hair planting hole is a circle with the side length of 1.7mm, and the material of the brush head is PP (polypropylene).

Comparative example 3:

the bristle material is PBT, the number of the planting holes is 13, and the average density of the planting holes is 6.38/cm ² The shape of the hair planting hole is a rectangle with the side length of 3X4mm, and the brush head is made of PBT. And (3) fixing the hair bundle by adopting a time AFT technology.

Comparative example 4:

the bristle material is PBT, the number of the planting holes is 34, and the average density of the planting holes is 13.07/cm ² The shape of the hair planting holes is a circle with the diameter of 1.68mm, and the brush head is made of PP.

Comparative example 5:

the bristle material is PBT, the number of the planting holes is 28, and the average density of the planting holes is 15.41/cm ² The shape of the hair planting hole is a circle with the diameter of 1.7mm, and the material of the brush head is PP.

3. Cleaning power and toothbrushing mouthfeel evaluation

1. Evaluation method: randomly extracting 10 persons, and carrying out the evaluation of the tooth brushing cleaning power and the tooth brushing taste of the embodiment;

the evaluation mode adopts a scoring mode, the scoring difference of each grade is 5 points, the total score is 100 points, and the final result is counted in an average scoring mode.

2. The evaluation results are shown in tables 1 to 4

Table 1: five toothbrushes of the invention were selected as the test results

Table 2: selecting five toothbrushes on the market for comparison

	Comparative example 1	Comparative example 2	Comparative example 3	Comparative example 4	Comparative example 5
						Shape of the planting hole	Ellipse shape	Circular shape	Rectangle	Circular shape	Circular shape
The number of the hair planting holes is N/	29	40	13	34	28
						The average density of the number of the planting holes is D/cm ²	12.01	15.07	6.38	13.07	15.41
Toothbrush head material	PBT	PP	PP	PP	PP
						Material of brush hair	PBT	PA	PBT	PBT	PBT
Material of flocking sheet	Copper sheet	Copper sheet	/	Copper sheet	Copper sheet
						Bristle filament diameter/mm	0.15	0.18	0.12	0.18	0.18
Lower tooth pressing distance/mm during bristle testing	1.5	1.5	1.5	1.5	1.5
						First pressure F _`1 /N	0.403	1.557	0.770	0.271	0.349
Second pressure F ₂ /N	0.223	0.637	0.352	0.126	0.204
						F _`1 *F ₂ /N ²	0.0897	0.9924	0.2712	0.0341	0.0711
Mouth feel of brushing teeth	78.0	52.0	86.0	80.0	74.0
						Cleaning effect of teeth	65.0	91.0	57.0	78.0	76.0

Table 3: test results of tooth brushing taste

Table 4: results of tooth cleaning force test

4. Conclusion

The toothbrush of the present invention is operated under a first pressure F ₁ When the range of the toothbrush is 0.055N-0.197N, the toothbrush can have good tooth brushing taste and good tooth cleaning effect, can obviously relieve the pressure of bristles on gingiva during tooth brushing aiming at people who are sensitive to gingiva and suffer from periodontitis, and avoids gingival bleeding during tooth brushing.

5. Supplement

1. If the bristle surface is not flat:

the testing method of the tuft pressure comprises the following steps: before testing, the height of the hair bundle with the height difference and the corresponding number of hair planting holes are respectively measured, and the distance L of the pressing module relative to the hair planting surface of the head is obtained when the zero point position is obtained through the formula L = L1 (Q1/Q) + L2 (Q2/Q) + L3 (Q3/Q) + Ln (Qn/Q);

wherein L1, L2, L3 and Ln refer to the height of the hair bundle, Q1, Q2, Q3 and Qn correspond to the quantity of the implanted hair of the hair bundle with different height respectively, and one implanted hair hole is defined as quantity 1.Q = Q1+ Q2+ Q3+ Qn.

Definition of tufts of different heights: the difference value of the highest points of the hair bundles corresponding to the two independent hair planting spaces is larger than 0.8mm, and if the difference value is smaller than 0.8mm, the hair bundles are determined to have no height difference and are the same hair bundle.

2. Definitions relating to the density of the flocked space

The hair planting port is independent and has independent boundary, and the hair planting holes with the same boundary are defined as the same hair planting hole.

For example, the injection-molded bristles by the injection-molding technique are defined as single implanted holes because the injection-molded bristles are formed on the head of the toothbrush by injection molding, and no independent boundary exists between the single bundles of bristles. From the above test data, the density D of implanted pores may also range from:

25＜D＜28,28＜D＜30,30＜D＜40,40＜D≤60；

29.79＜D＜52.5；

29.79≤D＜30，30＜D≤37.13，40＜D≤52.5；

unit: per cm ²

The working principle of the embodiment is as follows:

the invention provides a toothbrush, which comprises a planting hole, and a first pressure F of a single bundle of hair bundles on the planting hole ₁ The range of (1) is 0.055N to 0.197N. First pressure F of single bundle of hair on the hair-planting hole ₁ When the range of (1) is 0.055N to 0.197N, the toothbrush of the invention can relieve the pressure on the gum during tooth brushing and has good cleaning effect.

The foregoing is illustrative of embodiments provided in connection with the detailed description and is not intended to limit the disclosure to the particular forms set forth herein. Similar to the structure of the method of the present application, or several technical deductions or substitutions made on the premise of the conception of the present application, should be regarded as the protection scope of the present application.

Claims

1. A toothbrush, characterized by: comprising a hole for implanting hair, a first pressure F of a single bundle of hair on said hole ₁ In the range of 0.055N～0.197N。

2. A toothbrush according to claim 1, wherein: the density D of the implanted pores ranges from 25/cm ² Less than or equal to 60 pieces/cm ² 。

3. A toothbrush according to claim 1, wherein: the range of the surface area S of the implanted pores is 0.045mm ² ～1.69mm ² 。

4. A toothbrush according to claim 1, wherein: gaps H among the implanted pores range from 0.4mm to 0.8mm.

5. A toothbrush according to claim 1, wherein: first pressure F of single bundle of hair on the hair planting hole ₁ And a second pressure F ₂ Range of products of F ₁ ×F ₂ ＝0.0015N ² ～0.0085N ² 。

6. A toothbrush according to any one of claims 3 or 4, wherein: first pressure F of single bundle of hair on the hair planting hole ₁ And a second pressure F ₂ Range of products of F ₁ ×F ₂ ＝0.0010N ² ～0.0300N ² 。