A badge is provided having a lower part ( 1 ) including a fixing device ( 2 ), for example for fixing on an article of clothing, a support part ( 3 ) on which an information carrier ( 40 ) can be applied or placed, and a transparent cover part ( 41 ). The lower part ( 1 ) and support part ( 3 ) are connected to each other along the periphery of the parts. At least two of the lower part ( 1 ), the support part ( 3 ), the cover part ( 41 ), and the information carrier ( 40 ) are made of a material that is completely biodegradable.
1. A badge comprising a lower part including a fixing device, a support part on which an information carrier is applied, and a transparent cover part, the lower part and the support part being connected along their respective peripheries, wherein at least the lower part and the support part are made of a completely biologically degradable material, and contain 15% to 50% of a wood proportion in a form of wood dust and 25% of a biopolymer based on a biologically degradable, aliphatic-aromatic co-polyester, wherein the lower part has a flexural elastic modulus more than twice as high as that of the support part, and wherein the lower part is essentially planar, comprises a rectangular hole under the fixing device, and has a curved edge along its periphery for coupling engagement with the support part and the support part is shaped like a curved disc and has a curved edge for coupling engagement with the lower part.
2. The badge according to claim 1 , wherein the biologically degradable material is injection-moldable.
3. The badge according to claim 2 , wherein the biologically degradable material can be processed in a form of injection-molded granules.
4. The badge according to claim 1 , wherein the fixing device comprises a bracket, which is molded to a periphery of a bottom surface of the lower part and comprises a free end, and wherein the bracket extends spaced apart from the lower part and the free end of the bracket serves to pin the badge to a subject.
5. The badge according to claim 4 , wherein the rectangular hole extends along a direction in which the bracket extends and wherein the bracket has a concavely curved shape, such that a distance between a middle section of the bracket and the lower part is smaller than a distance between the free end of the bracket and the lower part.
6. The badge according to claim 1 , wherein the badge has a surface with a rounded or polygonal shape.
7. The badge according to claim 6 , wherein the surface shape of the badge is selected from circular, oval, square, hexagonal, and octagonal.
8. The badge according to claim 1 , wherein the badge is compressed by a button press machine.
9. The badge according to claim 1 , wherein an outer diameter d 1 of the lower part is smaller than an inner diameter d 2 of the support part.
10. The badge according to claim 9 , wherein the lower part is dimensioned smaller than the support part, such that the cover part may be inserted at an edge between the lower part and the support part.
11. The badge according to claim 10 , wherein the lower part is dimensioned smaller than the support part, such that the information carrier may be inserted at the edge between the lower part and the support part.
12. The badge according to claim 1 , wherein the flexural elastic modulus of the support part ranges from 1500 MPa to 1900 MPa, and the flexural elastic modulus of the lower part ranges from 3800 MPa to 4200 MPa.
13. The badge according to claim 12 , wherein the flexural elastic modulus of the support part amounts to 1700 MPa, and the flexural elastic modulus of the lower part amounts to 4000 MPa.