The tip alone is normally not strong enough to withstand the stress that it is subject to by being on the end of a finger.
As one's hands are constantly in motion or being utilized for some purpose, the artificial nail tips are constantly getting knocked and hit, which can cause them to break.
However, this raises concerns on how securely the tip can be glued onto the natural nail.
However, every person's nails are slightly different, meaning not everyone will have a curve in their natural nail that is the same as the curve of the artificial nail tip that is being applied.
Frequently, during this stage of application, the stress caused by attempting to conform the artificial nail tip to the shape of the natural nail causes the tip to crack or weaken.
In addition, the mismatch in curvatures also provides discomfort to the wearer of the nail tip and provides difficulty in attaching and fitting the nail tips.
The wearer may experience discomfort when wearing such a nail tip due to the axial curvature of the nail tip squeezing or pinching the sides of the underlying natural nail.
The applier of the nail tip may experience difficulty in attaching and fitting the nail tip to the wearer because of the inability of the curvature of the nail tip to be deformed (e.g. flattened out) to properly fit the wearer's natural curvature without breaking,
cracking or weakening.
There also exists the difficulty in filling the gap that is created between the nail tip and the underlying natural nail due to the curvature mismatch.
The wearer may also experience additional discomfort or even serious pain when wearing such a nail tip due to the glue or
adhesive used to attach such a nail tip overflowing onto the wearers surrounding
skin and underneath the natural nail.
The removal of such overflowed glue with the proper chemicals often times results in the integrity of the tip itself and its seal being compromised.
In addition, this force may make it difficult for an applier to determine the size of tip to be used on a wearer and to fit a nail tip to the wearer due to the difficulty in determining the extent the nail tip will deform to match the wearer's curvature.
Furthermore, it is difficult for an applier to determine the extent to which the nail tip may be deformed without breaking,
cracking or weakening (i.e. while maintaining it's structural integrity).
It is typical for prior tips to break, crack, or become weakened when deformed to a certain extent.
However, snapping out the perforated area of the nail tip results in a rough or uneven fragments that must be filed or
cut to ensure a smooth and aesthetically pleasing nail surface.
In addition, snapping out the perforated area may result in breaking or
cracking the nail tip, or in weakening the
structural stability of the nail tip.
However, the jagged pattern of the cutaway section advocated by this patent does not maintain the
structural stability of the nail tip when the attachment area is deformed or flexed to conform to the shape of an underlying natural nail, especially to natural nails which are flat or inconsistently shaped.
However, the presence of a dual
radius "V" design nail tip presents the same non-conforming to the curvature of the wearers natural nail as does all the other aforementioned nail tip designs.
The presence of the side walls of the dual
radius design on the nail tips attachment area do not allow for comfort of fit or ease of blending the attachment area's "V" shape in to the wearers natural nail for an aesthetically pleasing surface.
In addition, the patent states that the molded thickness and design of the attachment area is such that it allows for ease of adaptability in conforming to the curvature of the wearers natural nail without undue structural integrity, however the pre-molded shape with it's thickness does not allow for the deforming to take place without excessive filling (e.g. blending and
feathering) which can result in damage to the wearers natural nail and loss of structural integrity of the nail tip itself.
Furthermore, because of the presence of the side walls of the dual radius attachment area which when bonded to the natural nail, covers the natural nails end from the wearers side wall to side wall, the width of the finished product is such that it no longer is aesthetically pleasing.
Furthermore, the side walls can cause damage to the natural nail when the nail tip is removed, either intentionally or unintentionally by breaking or tearing of the nail tip.