Comfortable manicure nail tip and manicure nail tip assembly

Abstract

The utility model relates to the field of manicure nail tips, in particular to a comfortable manicure nail tip and a manicure nail tip assembly with the manicure nail tip. The utility model provides a comfortable manicure nail tip which comprises a nail tip body capable of being horizontally placed on a horizontal plane, the back face of the nail tip body arches upwards, and the curvature radius of the middle section of a transverse inner arc of the back face ranges from 6 mm to 25 mm in the left cross section and the right cross section of each position, away from the rear end point of the back face of the nail tip body by no more than 14 mm, on the nail tip body. The utility model further provides a manicure nail tip assembly, the manicure nail tip assembly comprises a plurality of nail tips with different sizes, and at least one nail tip is the manicure nail tip. Even under the condition that the back surface of the manicure nail piece cannot be completely copied with the surface of a human nail, the manicure nail piece can enable a user to feel comfortable after being attached to the surface of the human nail.

Description

TECHNICAL FIELD

[0001] The utility model relates to a nail art piece field, concretely relates to a comfortable nail art piece and a nail art piece assembly with the nail art piece. BACKGROUND

[0002] In life, when the nail art piece needs to be attached to the nail surface of a person to be manicured, an appropriate amount of glue or gel is applied to the inner concave back surface of the nail art piece, the nail art piece with the applied glue or gel is attached to the nail surface of the person to be manicured, and the nail art piece is pressed to adhere to the nail surface of the person by means of the glue or gel. After the glue or gel is cured, the nail art piece is firmly attached to the nail, and a manicure operation is completed. However, due to the presence of the glue or gel, the back surface of the nail art piece cannot be completely matched with the nail surface of the user, and a certain space must be reserved to accommodate the glue or gel. In addition, the specific morphology of different people's nails is different, and not all people's nails meet the so-called "standard" nail type. Even if the nail art piece is designed according to the ideal standard nail type size, it cannot perfectly fit the nail curve of every customer, and the wearer may still feel a certain degree of discomfort. SUMMARY

[0003] The technical problem to be solved by the utility model is to provide a comfortable nail art piece and a nail art piece assembly with the nail art piece. Even if the back surface of the nail art piece cannot be completely shaped according to the nail surface of a person, the user can feel more comfortable after the nail art piece is attached to the nail surface of the person.

[0004] To solve the above problems, the utility model provides a comfortable nail art piece, which comprises a nail piece body that can be placed horizontally on a horizontal plane, the back surface of the nail piece body is arched upward, and in each of the left and right cross sections of the nail piece body, the distance from the back surface to the rear end point is not more than 14 mm, and the curvature radius of the middle segment of the back surface transverse inner arc is 6 mm to 25 mm.

[0005] Among the left and right cross sections, the middle axis line passes through the middle point of the back surface transverse inner arc, and the back surface transverse inner arc is left-right symmetrical along the middle axis line.

[0006] Among the left and right cross sections, the middle axis line passes through the middle point of the back surface transverse inner arc, and the back surface transverse inner arc is left-right symmetrical along the middle axis line.

[0007] Among the left and right cross sections, the middle axis line passes through the middle point of the back surface transverse inner arc, and the back surface transverse inner arc is left-right symmetrical along the middle axis line.

[0008] Among the left and right cross sections, the middle axis line passes through the middle point of the back surface transverse inner arc, and the back surface transverse inner arc is left-right symmetrical along the middle axis line.

[0009] Among the left and right cross sections, the middle axis line passes through the middle point of the back surface transverse inner arc, and the back surface transverse inner arc is left-right symmetrical along the middle axis line.

[0010] The longitudinal distance between the front and back ends of the middle back section of the inner longitudinal arc of the back surface is 7-13 mm.

[0011] The back end of the middle back section of the inner longitudinal arc of the back surface extends to the back end point of the back surface of the nail sheet body.

[0012] The distance between the outermost wide part of the nail sheet body and the back end point of the nail sheet body in the front-back direction is 2.60-7.66 mm.

[0013] The thickness of the nail sheet body is not completely uniform.

[0014] The application further provides a manicure nail sheet assembly comprising a plurality of nail sheets with different sizes, wherein at least one of the nail sheets is the manicure nail sheet as described above.

[0015] The manicure nail sheet has five pieces, which are respectively used for sticking to the nail surfaces of the five fingers on the same palm of a person.

[0016] Beneficial effects: In the cross section of the nail sheet body, the radius of curvature of the inner arc of the back surface is 6-25 mm at a distance of not more than 14 mm from the back end point of the back surface, and even if the back surface of the nail sheet body cannot be completely shaped to the nail surface of a person, the manicure nail sheet can still make the user feel more comfortable after being stuck to the nail surface of a person, which is verified by experiments. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a structural schematic diagram of a manicure nail sheet.

[0018] Figure 2 is a structural schematic diagram of the manicure nail sheet from a top view, which shows a glue application area.

[0019] Figure 3 is a sectional view along the A-A direction of Figure 2

[0020] Figure 4 is a structural schematic diagram of the manicure nail sheet from a top view, which shows the outermost wide part of the nail sheet body.

[0021] Figure 5 is a sectional view along the B-B direction of Figure 4

[0022] Symbol explanation:

[0023] ​​1 - nail sheet body; 10 - edge surface; 11 - rear end point of nail sheet body; 12 - back surface of nail sheet body; 121 - rear end point of back surface of nail sheet body; 13 - back surface transverse inner arc; 131 - middle section of back surface transverse inner arc; 14 - back surface longitudinal inner arc; 141 - middle rear section of back surface longitudinal inner arc; 15 - outermost width of nail sheet body; X - left-right cross section; Y - front-rear longitudinal cross section; Z - central axis of left-right cross section; O - longitudinal central axis; C - glue applying area; D - distance from both ends of middle section of back surface transverse inner arc of nail sheet body (in glue applying area) to central axis; E - longitudinal distance between front and rear ends of middle rear section of back surface longitudinal inner arc of nail sheet body; F - distance between outermost width of nail sheet body and rear end point of nail sheet body in front-rear direction. DETAILED DESCRIPTION

[0024] The present application will be further described in detail below in conjunction with the specific embodiments.

[0025] The nail sheet assembly includes five nail sheets, which are not completely identical in size and are respectively used for sticking to the nail surfaces of five fingers on the same palm of a person. When it is needed to stick the nail sheets to the nail surfaces of a person to be manicured, an appropriate amount of glue (or gel) is applied to the upwardly arched back surface of the nail sheet, the nail sheet with the applied glue (or gel) is stuck to the nail surface of the person to be manicured, and the nail sheet is pressed to be attached to the nail surface of the person by means of the glue, so that the nail sheet is firmly attached to the nail surface of the person after the glue or gel is solidified, and one manicure operation is completed. Since the back surface of the nail sheet cannot be completely shaped to the nail surface of the person, a gap will be left between the back surface of the nail sheet and the nail surface after the nail sheet is stuck to the nail surface, and the applied glue is accommodated in the gap. If the gap is too small, the nail sheet will be difficult to stick to the nail surface of the person, and the user will feel uncomfortable if the nail sheet is forcibly stuck to the nail surface of the person. If the gap is too large, more glue needs to be applied to fill the gap, but the more glue is applied, the greater the weight of the glue after solidification, and the more uncomfortable the user will feel. Accordingly, the inventors have found that, under the condition that the back surface of the nail sheet cannot be completely shaped to the nail surface of the person, there are multiple factors affecting the comfort of the user after the nail sheet is stuck to the nail surface of the person, and the shape of the back surface of the nail sheet (which directly determines the size of the gap) and the center of gravity of the nail sheet have greater influences on the comfort, and these two factors are affected by multiple subordinate factors such as the curvature radius of the back surface of the nail sheet and the width of the nail sheet, among which the curvature radius of the middle section of the back surface transverse inner arc of the nail sheet has a greater influence, which will be described in detail below.

[0026] For example, one of the nail sheets is shown in FIG. 1. Figure 1It includes a plate body 1, which is symmetrical from left to right, but the thickness is not exactly the same in different places, and the back side 12 is arched upwards; the left, right, and rear edge surfaces 10 of the plate body 1 face downwards as the bottom surface, and the plate body 1 can be used as a base by means of the left and right bottom surfaces (i.e., the left and right edge surfaces 10). Figure 5 The surface shown is placed flat on a horizontal plane (i.e. Figure 5 On the dotted line in the figure). After the nail plate body 1 is attached to the surface of the human fingernail (not shown in the figure), the rear end point 121 of the back side 12 of the nail plate body 1 (combined with) Figure 2 and Figure 5 The area near the base of the nail (not shown in the diagram). Normally, the length of a human nail is generally no more than 14mm (e.g., the length of a thumb nail is generally 14mm). Therefore, in the nail plate body 1, the area no more than 14mm from the rear end point 121 of its back surface 12 is the glue application area C (see...). Figure 2 ).

[0027] The adhesive coating area C of the main body 1 of the axle (see Figure 2 Taking one of the left and right cross sections X within the area as an example, such as... Figure 3 As shown, the central axis Z of the left and right cross-sections X passes through the midpoint of the back transverse inner arc 13, and the back transverse inner arc 13 is symmetrical about the left and right along the central axis Z. The left and right cross-sections X at all points within the glue application area C of the nail body 1 are as described above. Since the middle section 131 of the back transverse inner arc 13 corresponds to the center of the glue application area C in all left and right cross-sections X at points no more than 14mm from the rear end point 121 of the back surface 12 of the nail body 1 (i.e., within the glue application area C of the nail body 1), the radius of curvature of this middle section 131 directly determines the size of the gap between the back surface 12 of the nail body 1 and the surface of the human nail, thus affecting the comfort of the manicure. To test the difference in comfort caused by different values ​​of the radius of curvature of the middle section 131 of the back transverse inner arc 13 of the nail body 1 (within the glue application area C), the experiment yielded the following Table 1:

[0028]

[0029] Note: In the 24 groups of data given in Table 1 above, the comfort score is full mark 100, each group represents the comfort evaluation score given by a tester after trying on the corresponding nail plate, the nail plate tried on is the same in other parameters except that the radius of curvature of the middle section 131 of the back surface transverse inner arc 13 in the glue area C of the nail plate body 1 is different, the distance D (see below for specific meaning) from the two ends of the middle section 131 of the back surface transverse inner arc 13 in the glue area C of the nail plate body 1 to the central axis Z is 8mm, the radius of curvature of the middle and rear section 141 of the back surface longitudinal inner arc 14 of the nail plate body 1 (see below for specific meaning) is 60mm-80mm, the longitudinal distance E (see below for specific meaning) of the front and rear ends of the middle and rear section 141 of the back surface longitudinal inner arc 14 is 13mm, and the distance F (see below for specific meaning) between the outermost wide place 15 of the nail plate body 1 and the rear end point 11 of the nail plate body 1 in the front and rear direction is 7.66mm.

[0030] From the above Table 1, it can be seen that the five groups of experimental group 1-5 are the same nail plate, corresponding to the nail plate body 1 (in the glue area C) the curvature radius of the middle segment 131 of the back surface transverse inner arc 13 is 25mm, the comfort scores of these five groups are higher, and the average score is 90.2; the five groups of experimental group 6-10 are the same nail plate, corresponding to the nail plate body 1 (in the glue area C) the curvature radius of the middle segment 131 of the back surface transverse inner arc 13 is 22mm, the comfort scores of these five groups are also higher, and the average score is 92.2; the five groups of experimental group 11-15 are the same nail plate, corresponding to the nail plate body 1 (in the glue area C) the curvature radius of the middle segment 131 of the back surface transverse inner arc 13 is 11mm, the comfort scores of these five groups are also higher, and the average score is 92.2; the five groups of experimental group 16-20 are the same nail plate, corresponding to the nail plate body 1 (in the glue area C) the curvature radius of the middle segment 131 of the back surface transverse inner arc 13 is 6mm, the comfort scores of these five groups are also higher, and the average score is 90; the two groups of control group 21 and 22 are the same nail plate, corresponding to the nail plate body 1 (in the glue area C) the curvature radius of the middle segment 131 of the back surface transverse inner arc 13 is 30mm, the comfort scores of these two groups are lower than those of the experimental groups, and the average score is only 77; the two groups of control group 23 and 24 are the same nail plate, corresponding to the nail plate body 1 (in the glue area C) the curvature radius of the middle segment 131 of the back surface transverse inner arc 13 is 3mm, the comfort scores of these two groups are also lower than those of the experimental groups, and the average score is only 78.5. In summary, in this embodiment, the comfort of the nail plate with the curvature radius of the middle segment 131 of the back surface transverse inner arc 13 of the nail plate body 1 (in the glue area C) being 25mm, 22mm, 11mm and 6mm is better than that of the nail plate with the curvature radius of the middle segment 131 of the back surface transverse inner arc 13 of the nail plate body 1 (in the glue area C) being 30mm and 3mm; in other embodiments, the comfort of the nail plate with the curvature radius of the middle segment 131 of the back surface transverse inner arc 13 of the nail plate body 1 (in the glue area C) being 6mm-25mm (more preferably 11mm-22mm) is better after being attached to the surface of the human finger.

[0031] The comfort of the nail plate is not only greatly affected by the value of the curvature radius of the middle segment 131 of the back surface transverse inner arc 13 of the nail plate body 1 (in the glue area C), but also by the distance D (see Figure 3 ) from the two ends of the middle segment 131 of the back surface transverse inner arc 13 of the nail plate body 1 (in the glue area C) to the central axis Z, the curvature radius of the middle and rear segments 141 of the back surface longitudinal inner arc 14 of the nail plate body 1 (see Figure 5 ), the longitudinal distance E (see Figure 5 ) of the front and rear ends of the middle and rear segments 141 of the back surface longitudinal inner arc 14, and the distance F (see Figure 4) and so on, which are slightly less than the influence of the curvature radius of the middle section 131 of the lateral inner arc 13 on the back surface of the nail piece body 1 (in the glue application area C), and these parameters will be tested one by one below.

[0032] The middle section 131 of the lateral inner arc 13 on the back surface of the nail piece body 1 (in the glue application area C) is also left-right symmetrical along the central axis Z, and the distance D from the two ends of the middle section 131 of the lateral inner arc 13 on the back surface of the nail piece body 1 (in the glue application area C) to the central axis Z is as shown in the figure. Figure 3 In order to test the comfort difference caused by different values of the distance D from the two ends of the middle section 131 of the lateral inner arc 13 on the back surface of the nail piece body 1 (in the glue application area C) to the central axis Z, the following Table 2 is obtained by experiment:

[0033]

[0034] Note: In the 14 groups of data given in Table 2 above, the full score of comfort evaluation is 100 points, and each group represents the comfort evaluation score given by a test evaluator after trying on the corresponding nail piece. The nail piece tried on is the same except for the different values of the distance D from the two ends of the middle section 131 of the lateral inner arc 13 on the back surface of the nail piece body 1 (in the glue application area C) to the central axis Z. The curvature radius of the middle section 131 of the lateral inner arc 13 on the back surface of the nail piece body 1 (in the glue application area C) is 11mm~22mm; the curvature radius of the middle and rear section 141 of the longitudinal inner arc 14 on the back surface of the nail piece body 1 (see below for specific meaning) is 60mm~80mm; the longitudinal distance E between the front and rear ends of the middle and rear section 141 of the longitudinal inner arc 14 on the back surface of the nail piece body 1 (see below for specific meaning) is 13mm; and the distance F between the outermost wide part 15 of the nail piece body 1 and the rear end point 11 of the nail piece body 1 in the front and rear direction (see below for specific meaning) is 7.66mm.

[0035] As shown in Table 2 above: Experimental groups 1-5 used the same nail tips, corresponding to nail tips with a distance D of 8mm from both ends of the middle section 131 of the horizontal inner arc 13 on the back of the nail tip body 1 (within the glue application area C) to the central axis Z. These five groups all had high comfort scores, with an average score of 92.8. Experimental groups 6-10 also used the same nail tips, corresponding to nail tips with a distance D of 1.3mm from both ends of the middle section 131 of the horizontal inner arc 13 on the back of the nail tip body 1 (within the glue application area C) to the central axis Z. These five groups also had high comfort scores, with an average score of 91.8. (Control group...) Groups 11 and 12 consisted of identical nail tips, with the distance D from the two ends of the middle section 131 of the horizontal inner arc 13 on the back of the corresponding nail tip body 1 (within the glue application area C) to the central axis Z being 12mm. These two groups had lower comfort scores compared to the experimental group, with an average score of only 81.5. Groups 13 and 14 were also identical nail tips, with the distance D from the two ends of the middle section 131 of the horizontal inner arc 13 on the back of the corresponding nail tip body 1 (within the glue application area C) to the central axis Z being 0.5mm. These two groups also had lower comfort scores compared to the experimental group, with an average score of only 83. In summary, in this embodiment, the nail art pieces with a distance D of 8mm and 1.3mm between the two ends of the middle section 131 of the horizontal inner arc 13 on the back of the nail body 1 (within the glue application area C) and the central axis Z are more comfortable than those with a distance D of 0.5mm and 12mm between the two ends of the middle section 131 of the horizontal inner arc 13 on the back of the nail body 1 (within the glue application area C) and the central axis Z. In other embodiments, nail art pieces with a distance D between 1.3mm and 8mm between the two ends of the middle section 131 of the horizontal inner arc 13 on the back of the nail body 1 (within the glue application area C) and the central axis Z are all quite comfortable after being pasted onto the surface of the nail.

[0036] The longitudinal midline O of the plate body 1 (see) Figure 4 The front and rear longitudinal sections Y are as follows Figure 5 As shown, in the longitudinal inner arc 14 of the back side of the front and rear longitudinal sections Y, the rear end of the rear section 141 of the rear longitudinal inner arc 14 extends to the rear end point 121 of the back side 12 of the armor body 1 (not preferably, the rear end of the rear section 141 may not extend to the rear end point 121 of the back side 12). Since the rear section 141 of the rear longitudinal inner arc 14 also corresponds to the adhesive application area C (in conjunction with...) Figure 2 The radius of curvature of the rear section 141 of the longitudinal inner arc 14 on the back side of the nail plate 1, to a certain extent, determines the size of the gap between the back side 12 of the nail plate body 1 and the surface of the human nail, affecting the comfort of the nail plate. To test the comfort differences caused by different values ​​of the radius of curvature of the rear section 141 of the longitudinal inner arc 14 on the back side of the nail plate body 1, the following table was obtained:

[0037]

[0038] Note: In the 14 groups of data given in Table 3 above, the comfort score is full marks 100, each group represents a comfort evaluation score given by a tester after trying on the corresponding nail plate, and the nail plate tried on is the same except that the curvature radius of the middle and rear section 141 of the longitudinal inner arc 14 on the back of the nail plate body 1 is different. The curvature radius of the middle section 131 of the transverse inner arc 13 on the back of the nail plate body 1 (in the glue area C) is 11mm~22mm; the distance D from the two ends of the middle section 131 of the transverse inner arc 13 on the back of the nail plate body 1 (in the glue area C) to the central axis Z is 8mm; the longitudinal distance E (see below for specific meaning) of the front and rear ends of the middle and rear section 141 of the longitudinal inner arc 14 on the back of the nail plate body 1 is 13mm; the distance F (see below for specific meaning) between the outermost width 15 of the nail plate body 1 and the rear end point 11 of the nail plate body 1 in the front and rear direction is 7.66mm.

[0039] From Table 3 above, it can be seen that: the five groups of experimental group 1~5 are the same nail plate, corresponding to the nail plate with a curvature radius of 80mm of the middle and rear section 141 of the longitudinal inner arc 14 on the back of the nail plate body 1, the comfort scores of the five groups are all high, with an average score of 92; the five groups of experimental group 6~10 are the same nail plate, corresponding to the nail plate with a curvature radius of 60mm of the middle and rear section 141 of the longitudinal inner arc 14 on the back of the nail plate body 1, the comfort scores of the five groups are also high, with an average score of 91.6; the two groups of control group 11, 12 are the same nail plate, corresponding to the nail plate with a curvature radius of 88mm of the middle and rear section 141 of the longitudinal inner arc 14 on the back of the nail plate body 1, the comfort scores of the two groups are lower than those of the experimental groups, with an average score of only 79; the two groups of control group 13, 14 are the same nail plate, corresponding to the nail plate with a curvature radius of 52mm of the middle and rear section 141 of the longitudinal inner arc 14 on the back of the nail plate body 1, the comfort scores of the two groups are also lower than those of the experimental groups, with an average score of only 81. In summary, in this embodiment, the comfort of the nail plate with a curvature radius of 60mm, 80mm of the middle and rear section 141 of the longitudinal inner arc 14 on the back of the nail plate body 1 is better than that of the nail plate with a curvature radius of 52mm, 88mm of the middle and rear section 141 of the longitudinal inner arc 14 on the back of the nail plate body 1; in other embodiments, the nail plate with a curvature radius of 60mm~80mm of the middle and rear section 141 of the longitudinal inner arc 14 on the back of the nail plate body 1 has good comfort after being pasted to the surface of a human finger.

[0040] The longitudinal distance E of the front and rear ends of the middle and rear section 141 of the longitudinal inner arc 14 on the back of the nail plate body 1 is shown in Figure 5 To test the comfort difference brought by different values of the longitudinal distance E of the front and rear ends of the middle and rear section 141 of the longitudinal inner arc 14 on the back of the nail plate body 1, the following Table 4 is obtained by experiment:

[0041]

[0042] Note: In the 14 groups of data given in Table 4 above, the comfort score is full marks 100, each group represents a comfort evaluation score given by a tester after trying on the corresponding nail plate, and the nail plate tried on is the same except that the longitudinal distance E of the front and back ends of the middle and rear section 141 of the longitudinal inner arc 14 on the back of the nail plate body 1 is different: the curvature radius of the middle section 131 of the longitudinal inner arc 14 on the back of the nail plate body 1 (in the glue area C) is 11mm~22mm; the distance D of the two ends of the middle section 131 of the longitudinal inner arc 14 on the back of the nail plate body 1 (in the glue area C) to the central axis Z is 8mm; the curvature radius of the middle and rear section 141 of the longitudinal inner arc 14 on the back of the nail plate body 1 is 60mm~80mm; the distance F (see below for specific meaning) between the outermost wide place 15 of the nail plate body 1 and the rear end point 11 of the nail plate body 1 in the front and back direction is 7.66mm.

[0043] From Table 4 above: the five groups of experimental group 1~5 are the same nail plate, corresponding to the nail plate with a longitudinal distance E of 13mm of the front and back ends of the middle and rear section 141 of the longitudinal inner arc 14 on the back of the nail plate body 1, the comfort scores of the five groups are all high, with an average score of 92.6; the five groups of experimental group 6~10 are the same nail plate, corresponding to the nail plate with a longitudinal distance E of 7mm of the front and back ends of the middle and rear section 141 of the longitudinal inner arc 14 on the back of the nail plate body 1, the comfort scores of the five groups are also high, with an average score of 91.6; the two groups of control group 11, 12 are the same nail plate, corresponding to the nail plate with a longitudinal distance E of 18mm of the front and back ends of the middle and rear section 141 of the longitudinal inner arc 14 on the back of the nail plate body 1, the comfort scores of the two groups are lower than the experimental groups, with an average score of only 84.5; the two groups of control group 13, 14 are the same nail plate, corresponding to the nail plate with a longitudinal distance E of 3mm of the front and back ends of the middle and rear section 141 of the longitudinal inner arc 14 on the back of the nail plate body 1, the comfort scores of the two groups are also lower than the experimental groups, with an average score of only 81.5. In summary, in this embodiment, the nail plate with a longitudinal distance E of 7mm, 13mm of the front and back ends of the middle and rear section 141 of the longitudinal inner arc 14 on the back of the nail plate body 1 is more comfortable than the nail plate with a longitudinal distance E of 3mm, 18mm of the front and back ends of the middle and rear section 141 of the longitudinal inner arc 14 on the back of the nail plate body 1; in other embodiments, the nail plate with a longitudinal distance E of 7mm~13mm of the front and back ends of the middle and rear section 141 of the longitudinal inner arc 14 on the back of the nail plate body 1 is more comfortable after being pasted on the surface of the human nail.

[0044] The distance F between the outermost wide place 15 (see Figure 4 , which is the position with the maximum width of the nail plate body 1) and the rear end point 11 of the nail plate body 1 in the front and back direction is as follows Figure 4The distance F between the outer-to-wide place 15 of the nail plate body 1 and the rear end point 11 of the nail plate body 1 in the front-rear direction is different in different values, and the comfort difference is tested. The following Table 5 is obtained by experiment:

[0045]

[0046] Note: In the 14 groups of data given in Table 5 above, the comfort score is 100 points, and each group represents the comfort evaluation score given by a tester after trying on the corresponding nail plate. The nail plate tried on is the same except that the distance F between the outer-to-wide place 15 of the nail plate body 1 and the rear end point 11 of the nail plate body 1 in the front-rear direction is different. The curvature radius of the middle segment 131 of the back transverse inner arc 13 of the nail plate body 1 (in the glue application area C) is 11mm~22mm; the distance D from both ends of the middle segment 131 of the back transverse inner arc 13 of the nail plate body 1 (in the glue application area C) to the central axis Z is 8mm; the curvature radius of the middle-rear segment 141 of the back longitudinal inner arc 14 of the nail plate body 1 is 60mm~80mm; and the longitudinal distance E of the front and rear ends of the middle-rear segment 141 of the back longitudinal inner arc 14 of the nail plate body 1 is 13mm.

[0047] From the above table 5: the experimental group 1~5 these five groups are the same nail piece, corresponding to the outer wide place 15 of the nail piece body 1 and the rear end point 11 of the nail piece body 1 in the front and rear direction distance F is 7.66mm nail piece, the comfort score of these five groups is higher, the average score is 92 points; The experimental group 6~10 these five groups are the same nail piece, corresponding to the outer wide place 15 of the nail piece body 1 and the rear end point 11 of the nail piece body 1 in the front and rear direction distance F is 2.60mm nail piece, the comfort score of these five groups is also higher, the average score is 92.8 points; The control group 11, 12 these two groups are the same nail piece, corresponding to the outer wide place 15 of the nail piece body 1 and the rear end point 11 of the nail piece body 1 in the front and rear direction distance F is 8.87mm nail piece, the comfort score of these two groups is lower than that of the experimental group, the average score is only 80 points; The control group 13, 14 these two groups are the same nail piece, corresponding to the outer wide place 15 of the nail piece body 1 and the rear end point 11 of the nail piece body 1 in the front and rear direction distance F is 1.90mm nail piece, the comfort score of these two groups is also lower than that of the experimental group, the average score is only 81.5 points. In summary, in this embodiment, the distance F between the outer wide place 15 of the nail piece body 1 and the rear end point 11 of the nail piece body 1 in the front and rear direction is 2.60mm, 7.66mm, the comfort of the nail piece is better than that of the nail piece body 1. The distance F between the outer wide place 15 of the nail piece body 1 and the rear end point 11 of the nail piece body 1 in the front and rear direction is 1.90mm, 8.87mm; In other embodiments, the distance F between the outer wide place 15 of the nail piece body 1 and the rear end point 11 of the nail piece body 1 in the front and rear direction is 2.60mm~7.66mm, the comfort is better after being pasted to the surface of the human finger nail.

[0048] The above is only an embodiment of the present application, which does not limit the scope of patent protection. Those skilled in the art can make non-essential changes or substitutions on the basis of the present application, which still falls within the scope of patent protection.

Claims

1. A comfortable nail tip comprising a nail tip body which can be laid flat on a horizontal plane, the nail tip body being arched with the back facing upwards, characterized in that The radius of curvature of the middle section of the lateral inner arc of the back surface in the left and right cross sections of the nail plate body is 6mm-25mm.

2. The nail plate of claim 1, wherein, The middle axis (Z) passes through the middle point of the lateral inner arc of the back surface, and the lateral inner arc of the back surface is symmetrical about the middle axis.

3. The nail plate of claim 2, wherein, The middle section of the lateral inner arc of the back surface is symmetrical about the middle axis.

4. The nail tip as described in claim 3, characterized in that, The distance between the two ends of the middle section of the lateral inner arc of the back surface and the middle axis is 1.3mm-8mm.

5. The nail plate according to claim 1 or 4, wherein The radius of curvature of the middle section of the lateral inner arc of the back surface is specifically 11mm-22mm.

6. The nail plate of claim 1, wherein, The radius of curvature of the middle and rear section of the longitudinal inner arc of the back surface in the front and rear longitudinal cross sections of the nail plate body is 60mm-80mm.

7. The nail tip as described in claim 6, characterized in that, The longitudinal distance between the front and rear ends of the middle and rear section of the longitudinal inner arc of the back surface is 7mm-13mm.

8. The nail plate of claim 7, wherein, The rear end of the middle and rear section of the longitudinal inner arc of the back surface extends to the rear end point of the back surface of the nail plate body.

9. The nail plate of claim 1 wherein, The distance between the outer width of the nail plate body and the rear end point of the nail plate body in the front and rear direction is 2.60mm-7.66mm.

10. The nail plate of claim 1 wherein, The thickness of the nail plate body is not completely uniform.

11. A set of nail pieces for nail art, comprising a plurality of nail pieces of different sizes, characterized in that, At least one of the nail plates is the nail plate according to any one of claims 1-10.

12. The nail tip assembly as described in claim 11, characterized in that, The nail plates are five, and are respectively used for sticking to the surfaces of the five fingers of the same palm of a person.

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