In printed images we all must have seen animation such as dancing images, changing graphics; winking of eyes that are commonly considered as 3D effects but in reality, it is the lenticular effect. This effect is nothing but, in reality, it is a specialized image that is created with the help of a specialized printing process known as lenticular Printing, and lenticular sheets or lenticular lens is the substrate that is used in the process. Soft lenticular sticker is majorly found in children's toys but in today’s time collection lenticular lens is finding application in numerous areas too.

Stereoscopic effects: In this case the change in viewing angle has to be very small so that each eye can see a slightly different view. The 3D effect is created without any need for special glasses. There are various designs of soft lenticular tpu printing. Different lenticular lens designs are present depending on the sort of animation and the printing process that are used to produce the lenticular prints. There is a difference in the thickness and viewing angle of the lenticular. It is also seen that angle of lenticular is also different.

Flip effect Transforming prints: Here there is the use of two or more very different pictures and to switch from one image to another there is a need for the lenses to be designed in such a way that it can provide a relatively large change in angle of view. These way viewers can easily see the original images.

Animated prints: In this case the distance between different angles of view is medium. It is so that when both eyes see the same picture, by moving a little bit you can switch to the next picture in the series. Generally, sequential images can be used but that too with only small differences between each image and the next.

There are different designs for the lenticular lens. There is the existence of various lenticular lenses but all depends on the sort of animation and the printing process to be used to produce the soft lenticular sticker China. It is found that the angle of lenticular differs a lot. For an animation effect, a wide-angle will work best and a narrow-angle is required for giving an optimal 3D effect.