EP 3 800 016 A1 [0083] The second coating layer 30 may contain polytetrafluoroethylene (PTFE). However, the present disclosure is not limited thereto. [0084] Thesecondcoating layer30mayinclude a blade tip 32formed ataposition corresponding to the substrate tip 12. [0085] A value obtained by dividing the distance (a) between the substrate tip 12 and the blade tip 32 by the vertical height (b) from one surface of the cutting edge to the surface of the second coating layer 30 may be from 1.92 to 2.00. [0086] The multiple coating layers may be laminated on the substrate 10 according to such a ratio, thereby more appropriately reinforcing the durability of the shaving blade. [0087] However, the present disclosure is not limited thereto, and the value obtained by dividing (a) by (b) may be out ofthe above-described range depending on the angle ofthesubstrate 10,depositionconditions,and physicalproperties. [0088] The third coating layer 40, which is between the first coating layer 20 and the second coating layer 30, may be laminated on the first coating layer 20, and increase adhesion between the first coating layer 20 and the second coating layer 30. [0089] Thethirdcoating layer40 may include a materialcontaining Cr,whichexhibitsexcellentadhesion.Forexample, the third coatinglayer40 may contain one ormoreofCrB and CrC.However,the presentdisclosure isnotlimited thereto. [0090] The thickness of the third coating layer 40 may be between 5 nanometers and 30 nanometers. [0091] When the third coating layer 40 has a thickness of 5 nanometers or less, the third coating layer 40 may only form a nucleus, but may not form a layer. [0092] On the other hand, when the third coating layer 40 has a thickness of 30 nanometers or more, the cutting force of the shaving blade may increase. [0093] As is apparent from the above description, according to the embodiments, the cutting force of a shaving blade may be effectively reduced, thereby providing a smooth feel of shaving to the user. [0094] With respectto changingnumericalrange limitations,even though various subranges are notexplicitlydisclosed, one skilled in the art would clearly understand that sub-ranges/values are contemplated and included in the present disclosure. Thus, any numerical values or sub-ranges within the disclosed ranges would be inherently supported by various ranges disclosed in the specification. [0095] Although exemplaryembodiments havebeen described forillustrative purposes,those skilled in the artto which the present disclosure belongs will appreciate that various modifications and variations can be made without departing from the essential features of the present disclosure. Therefore, the present disclosure is to be construed as illustrative rather than limiting, and the scope of the present disclosure is not limited by the embodiments. The scope of protection of the disclosure should be construed according to the appended claims, and all technical ideas within the scope of the claims and equivalents thereof should be construed as being within the scope of the disclosure. 30 a substrate having a cutting edge on which a substrate tip is formed, wherein a thickness T16 ofthe substrate,measured ata distance D16 thatis 16micrometersfrom the substrate tip, is in a range from 2.41 micrometers to 3.76 micrometers. 55 50 45 40 35 25 20 15 10 5 7 6. The shaving blade of any one of claims 1 to 5, wherein a first ratio R16 obtained by dividing the thickness T16 measured at the distance D16 by the distance D16 is less than or equal to at least one of: 5. The shaving blade of any one of claims 1 to 4, wherein a first ratio R16 obtained by dividing the thickness T16, measured at the distance D16, by the distance D16 is greater than or equal to a second ratio R100 obtained by dividing a thickness T100, measured at a distance D100 that is 100 micrometers from the substrate tip, by the distance D100. 4. The shaving blade of any one of claims 1 to 3, wherein a thickness T64 of the substrate, measured at a distance D64 that is 64 micrometers from the substrate tip, is in a range from 7.69 micrometers to 12.90 micrometers. 3. The shaving blade of claims 1 or 2, wherein a thickness T32 of the substrate, measured at a distance D32 that is 32 micrometers from the substrate tip, is in a range from 5.00 micrometers to 7.02 micrometers. 2. The shaving blade of claim 1, wherein a thickness T100 of the substrate, measured at a distance D100 that is 100 micrometers from the substrate tip, is in a range from 10.5 micrometers to 19.5 micrometers. 1. A shaving blade comprising: Claims