Method for manufacturing a tree-dimensional puzzle
A three-dimensional puzzle including a lenticular lens layer having a lens surface and a flat surface. A four color ink is applied to the flat surface and a layer of opaque ink is applied to the four color ink. A white paper backing is adhered to the layer of opaque ink using an emulsion based adhesive having a viscosity of approximately 1,600 mPas at 23° C., and a backer board comprised of four layers of cardboard is applied to the white paper backing. A method of manufacturing the three-dimensional puzzle is also disclosed.
1 . A method of manufacturing a three-dimensional puzzle, comprising the steps of:
providing a lenticular lens layer having a lens surface and a flat surface;
priming the flat surface of the lenticular lens layer;
exposing the primed flat surface of the lenticular lens layer to ultraviolet light;
applying a layer of four colors of ink to the flat surface of the lenticular lens layer;
providing a second exposure of ultraviolet light to the layer of four colors of ink;
adding a layer of opaque ink to the layer of four colors of ink;
providing a third exposure of ultraviolet light to all layers of the puzzle;
providing a fourth exposure of ultraviolet light to all layers of the puzzle;
providing a fifth exposure of ultraviolet light to all layers of the puzzle;
providing a sixth exposure of ultraviolet light to all layers of the puzzle;
adhering a layer of white paper backing on top of the layer of opaque ink; and
attaching a backer board on top of the layer of white paper backing.
2 . The method of claim 1 , wherein the primed flat surface of the lenticular lens layer is cured using exposure to ultraviolet light of approximately 840 watts for less than one second.
3 . The method of claim 1 , wherein the four colors of ink is comprised of black, cyan, magenta and yellow inks.
4 . The method of claim 1 , wherein the layer of four colors of ink is applied using stochastic screening.
5 . The method of claim 1 , wherein the second exposure of ultraviolet light to the layer of four color is approximately 1,120 watts for less than one second.
6 . The method of claim 1 , wherein the third exposure of ultraviolet light to the layers of the puzzle is approximately 1,330 watts for less than one second.
7 . The method of claim 1 , wherein the fourth exposure of ultraviolet light to the layers of the puzzle is approximately 840 watts for less than one second.
8 . The method of claim 1 , wherein the fifth exposure of ultraviolet light to the layers of the puzzle is approximately 1,120 watts for less than one second.
9 . The method of claim 1 , wherein the sixth exposure of ultraviolet light to the layers of the puzzle is of approximately 1,190 watts for less than one second.
10 . The method of claim 1 , wherein the layer of white paper backing is applied to the layer of opaque ink using a polyacid adhesive.
11 . The method of claim 1 , wherein the lenticular lens has a thickness of at least approximately 10 mil.
12 . The method of claim 1 , wherein the lenticular lens has a thickness in the range of approximately 10 mil to approximately 15 mil.
13 . The method of claim 1 , wherein the backer board is comprised of:
four layers of cardboard;
each of the four layers of cardboard are oriented perpendicular to their adjacent layers; and
the four-layer backer board has a thickness of approximately 1.25 mm.
14 . The method of claim 1 , further comprising the steps of:
providing a cutting platform;
cutting at least one groove in the platform, the groove forming the shape of at least one puzzle piece;
positioning a cutting instrument in the at least one groove;
placing a piece of rubber over the cutting instrument;
inserting at least one insert in at least one location between the rubber and the cutting platform; and
pressing the three-dimensional puzzle over the cutting instrument, thereby cutting the three-dimensional puzzle into at least one puzzle piece.
15 . The method of claim 14 , wherein:
the at least one groove is part of a plurality of grooves;
the plurality of grooves forms the shape of a plurality of puzzle pieces; and
pressing the three-dimensional puzzle over the cutting instrument, cuts the three-dimensional puzzle into a plurality of puzzle pieces.
16 . The method of claim 14 , wherein:
the cutting instrument is comprised of a double-sharpened, hardened steel knife;
the knife has a body and a blade;
the hardness of the body is at least approximately 39 HRC; and
the hardness of the blade is at least approximately 57 HRC.
17 . The method of claim 14 , wherein the rubber is ejection rubber having a thickness of approximately 7 mm and a hardness of approximately 45 shore.
18 . The method of claim 14 , wherein a plurality of inserts are positioned in a plurality of locations between the rubber and the cutting platform.
19 . The method of claim 14 , wherein the plurality of inserts vary in height from approximately 0.001 mm to approximately 0.01 mm.
20 . A method for cutting a puzzle, the method comprising the steps of:
providing a cutting platform;
cutting at least one groove in the platform, the groove forming the shape of at least one puzzle piece;
positioning a cutting instrument in the at least one groove;
placing a piece of rubber over the cutting instrument;
inserting at least one insert in at least one location between the rubber and the cutting platform; and
pressing the three-dimensional puzzle over the cutting instrument, thereby cutting the three-dimensional puzzle into at least one puzzle piece.
21 . The method of claim 20 , wherein:
the at least one groove is part of a plurality of grooves;
the plurality of grooves forms the shape of a plurality of puzzle pieces; and
pressing the three-dimensional puzzle over the cutting instrument, cuts the three-dimensional puzzle into a plurality of puzzle pieces.
22 . The method of claim 20 , wherein:
the cutting instrument is comprised of a double-sharpened, hardened steel knife;
the knife has a body and a blade;
the hardness of the body is at least approximately 39 HRC; and
the hardness of the blade is at least approximately 57 HRC.
23 . The method of claim 20 , wherein the rubber is ejection rubber.
24 . The method of claim 23 , wherein the ejection rubber has a thickness of approximately 7 mm and a hardness of approximately 45 shore.
25 . The method of claim 23 , wherein a plurality of inserts are positioned in a plurality of locations between the rubber and the cutting platform.