BREADMAKING TRAY AND MANUFACTURING METHOD THEREFOR

Abstract

A breadmaking tray includes a breadmaking tray body B in which: (i) a fluorine resin film 2 having a thickness of 75 to 500 μm is laminated on a metal substrate 1 through heat bonding; (ii) a plurality of holes h are punched; and (iii) an appearance thereof has a plate shape bent in a corrugated form, and the breadmaking tray can further include a frame A for supporting the body B. A method for manufacturing the breadmaking tray is provided. The breadmaking tray has excellent release properties since flour dough comes into contact with only the inner walls of holes h punched in the fluorine resin film having excellent release properties during a breadmaking process, without coming into contact with the inner walls of holes h punched in the metal substrate.

Claims

1. A breadmaking tray comprising: a breadmaking tray body B in which (i) a fluorine resin film 2 having a thickness of 75 to 500 μm is laminated on a metal substrate 1 by a thermal fusion bonding method, ii) a plurality of holes h are punched therein, and (iii) an appearance thereof has a plate shape bent in a corrugated form.

2. The breadmaking tray according to claim 1, further comprising: a frame A disposed under the breadmaking tray body B to support the same.

3. The breadmaking tray according to claim 1, wherein the fluorine resin film 2 is made of polytetrafluoroethylene (PTFE).

4. The breadmaking tray according to claim 1, wherein the fluorine resin film 2 is made of one selected from tetrafluoroethylene-hexafluoropropylene copolymer (FEP), tetrafluoroethylene-perfluoroalkyl vinyl ether (PFA), ethylene-tetrafluoroethylene copolymer (ETFE), polychlorotrifluoroethylene (PCTFE), polyvinylidene fluoride (PVDF), polyvinyl fluoride (PVF), tetrafluoroethylene-perfluoropropyl vinyl ether copolymer (TFM), polytetrafluoroethylene-perfluoromethyl vinyl ether copolymer (PFE/PMVE), and ethylene-chlorotrifluoroethylene copolymer (ECTEF).

5. The breadmaking tray according to claim 1, wherein the metal substrate 1 is made of one selected from aluminum, iron, copper, brass and Alcot™.

6. The breadmaking tray according to claim 1, wherein the metal substrate 1 has a thickness of 0.5 to 3 mm.

7. The breadmaking tray according to claim 1, wherein the fluorine resin films 2 are laminated on both sides of the metal substrate 1.

8. A method for manufacturing a breadmaking tray, comprising the steps of: (i) laminating a fluorine resin film 2 having a thickness of 75 to 500 μm on a metal substrate 1 by a thermal fusion bonding method under high temperature and high pressure conditions to prepare a base plate D; (ii) punching holes h in the base plate D prepared in the laminating step; and (iii) molding the base plate D having the holes h punched therein in the punching step into a shape of a breadmaking tray body B bent in a corrugated form.

9. The method for manufacturing a breadmaking tray according to claim 8, further comprising the step of: disposing a frame A under the breadmaking tray body B to support the same.

10. The method for manufacturing a breadmaking tray according to claim 8, wherein the fluorine resin film 2 is made of polytetrafluoroethylene (PTFE).

11. The method for manufacturing a breadmaking tray according to claim 8, wherein the fluorine resin film 2 is made of one selected from tetrafluoroethylene-hexafluoropropylene copolymer (FEP), tetrafluoroethylene-perfluoroalkyl vinyl ether (PFA), ethylene-tetrafluoroethylene copolymer (ETFE), polychlorotrifluoroethylene (PCTFE), polyvinylidene fluoride (PVDF), polyvinyl fluoride (PVF), tetrafluoroethylene-perfluoropropyl vinyl ether copolymer (TFM), polytetrafluoroethylene-perfluoromethyl vinyl ether copolymer (PFE/PMVE), and ethylene-chlorotrifluoroethylene copolymer (ECTEF).

12. The method for manufacturing a breadmaking tray according to claim 8, wherein the metal substrate 1 is made of one selected from aluminum, iron, copper, brass and Alcot™.

13. The method for manufacturing a breadmaking tray according to claim 8, wherein the metal substrate 1 has a thickness of 0.5 to 3 mm.

14. The breadmaking tray according to claim 2, wherein the fluorine resin film 2 is made of polytetrafluoroethylene (PTFE).

15. The breadmaking tray according to claim 2, wherein the fluorine resin film 2 is made of one selected from tetrafluoroethylene-hexafluoropropylene copolymer (FEP), tetrafluoroethylene-perfluoroalkyl vinyl ether (PFA), ethylene-tetrafluoroethylene copolymer (ETFE), polychlorotrifluoroethylene (PCTFE), polyvinylidene fluoride (PVDF), polyvinyl fluoride (PVF), tetrafluoroethylene-perfluoropropyl vinyl ether copolymer (TFM), polytetrafluoroethylene-perfluoromethyl vinyl ether copolymer (PFE/PMVE), and ethylene-chlorotrifluoroethylene copolymer (ECTEF).

16. The breadmaking tray according to claim 2, wherein the metal substrate 1 is made of one selected from aluminum, iron, copper, brass and Alcot™.

17. The breadmaking tray according to claim 2, wherein the metal substrate 1 has a thickness of 0.5 to 3 mm.

18. The breadmaking tray according to claim 2, wherein the fluorine resin films 2 are laminated on both sides of the metal substrate 1.

Description

DESCRIPTION OF DRAWINGS

[0018] FIG. 1 is a photograph illustrating an upper surface of a breadmaking tray.

[0019] FIG. 2 is a photograph illustrating a lower surface of the breadmaking tray.

[0020] FIG. 3 is a photograph illustrating a side surface of the breadmaking tray.

[0021] FIG. 4 is a schematic cross-sectional view illustrating a breadmaking tray body B according to the present invention.

[0022] FIG. 5 is a schematic cross-sectional view illustrating a base plate D used in the present invention.

[0023] FIG. 6 is a schematic view illustrating a state in which flour dough is placed on a breadmaking tray body B according to the present invention during a breadmaking process.

[0024] FIG. 7 is a schematic view illustrating a state in which the flour dough is placed on a conventional breadmaking tray body B during the breadmaking process.

BEST MODE

[0025] Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

[0026] The breadmaking tray according to the present invention includes, as illustrated in FIG. 4, a breadmaking tray body B in which (i) a fluorine resin film 2 having a thickness of 75 to 500 μm is laminated on a metal substrate 1 by a thermal fusion bonding method, ii) a plurality of holes h are punched therein, and (iii) an appearance thereof has a plate shape bent in a corrugated form.

[0027] The breadmaking tray of the present invention may further include a frame disposed under the breadmaking tray body B to support the same.

[0028] According to an embodiment of the breadmaking tray of the present invention, as illustrated in FIGS. 1 to 3, the breadmaking tray may include the breadmaking tray body B and a frame A disposed under the breadmaking tray body B to support the same, or may include only the breadmaking tray body B.

[0029] If the thickness of the fluorine resin film 2 is less than 75 μm, a height of the fluorine resin film 2 is decreased, such that flour dough C flows down to the inner walls of the holes h punched in the metal substrate 1 during the breadmaking process, thereby resulting in a significant reduction in the release properties. If the thickness thereof exceeds 500 μm, manufacturing costs are increased without any further improvement in the release properties.

[0030] The fluorine resin film included in the breadmaking tray body B of the present invention is made of polytetrafluoroethylene (PTFE), or is made of one selected from tetrafluoroethylene-hexafluoropropylene copolymer (FEP), tetrafluoroethylene-perfluoroalkyl vinyl ether (PFA), ethylene-tetrafluoroethylene copolymer (ETFE), polychlorotrifluoroethylene (PCTFE), polyvinylidene fluoride (PVDF), polyvinyl fluoride (PVF), tetrafluoroethylene-perfluoropropyl vinyl ether copolymer (TFM), polytetrafluoroethylene-perfluoromethyl vinyl ether copolymer (PFE/PMVE), and ethylene-chlorotrifluoroethylene copolymer (ECTEF).

[0031] The metal substrate 1 is made of aluminum, iron, copper, brass or Alcot™, and has a thickness of 0.5 to 3 mm.

[0032] The fluorine resin film 2 may be laminated only on the upper surface of the metal substrate 1, and the fluorine resin film 2 may be laminated on the upper and lower surfaces, that is, both surfaces of the metal substrate 1.

[0033] Next, a method for manufacturing a breadmaking tray according to the present invention will be described.

[0034] The method for manufacturing a breadmaking tray according to the present invention includes the steps of: (i) laminating a fluorine resin film 2 having a thickness of 75 to 500 μm on a metal substrate 1 by a thermal fusion bonding method under high temperature and high pressure conditions to prepare a base plate D; (ii) punching holes h in the base plate D prepared in the laminating step; and (iii) molding the base plate D having the holes h punched therein in the punching step into a shape of a breadmaking tray body B bent in a corrugated form.

[0035] As an embodiment of the present invention, first, the fluorine resin film 2 having a thickness of 75 to 500 μm is laminated on the metal substrate 1 by the thermal fusion bonding method under high temperature and high pressure conditions of 350 to 400 degrees Celsius to prepare the base plate D illustrated in FIG. 5.

[0036] Next, punching and molding are performed on the base plate D prepared as described above to prepare the breadmaking tray body B.

[0037] The breadmaking tray body B manufactured as described above may be used as the breadmaking tray as it is, or if necessary, a step of disposing a frame A under the breadmaking tray body B prepared as described above so as to serve as a support may be further performed, such that, as illustrated in FIGS. 1 to 3, a breadmaking tray including the breadmaking tray body B and the frame A may be manufactured.

[0038] In the breadmaking tray body B of the present invention, since the fluorine resin film 2 having a relatively thicker thickness than that of the fluorine resin coating layer formed by the conventional coating method is laminated on the metal substrate 1, the flour dough C comes in contact with only the inner walls of the holes h punched in the fluorine resin film 2 having excellent release properties, while not contacting with the inner walls of the holes h punched in the metal substrate 1 during the breadmaking process.

[0039] Thereby, after the breadmaking process, a phenomenon, in which the breadmaking flour dough C is adhered to the inner walls of the holes h punched in the breadmaking tray body B to be remained, may be substantially prevented.

[0040] In the method of manufacturing a breadmaking tray according to the present invention, the fluorine resin film 2 is laminated on the plate-shaped metal substrate 1 by the thermal fusion bonding method, and then punching and molding are performed thereon. Therefore, when comparing with the conventional method of coating a fluorine resin on each breadmaking tray having the bent portion, there are effects of improving workability in a manufacturing process, improving release properties by preventing an occurrence of pin-holes, etc. during coating the fluorine resin, and also extending a service life. In addition, as compared with the conventional method of applying soybean oil, there is an effect of preventing contamination of the workplace environment due to oxidation of soybean oil.

[0041] As an embodiment of making bread using the breadmaking tray according to the present invention, a state, in which the flour dough C is placed on the breadmaking tray body B during the breadmaking process, is illustrated in FIG. 6 as a schematic view.

[0042] Meanwhile, as an embodiment of making bread using the conventional breadmaking tray having the fluorine resin coating layer 3 formed on the metal substrate 1, a state, in which a flour dough C is placed on the breadmaking tray body B during the breadmaking process, is illustrated in FIG. 7 as a schematic view.

[0043] In the case of the embodiment of the present invention, as illustrated in FIG. 6, the flour dough comes in contact with only the inner walls of the holes h punched in the fluorine resin film 2 having excellent release properties, while not contacting with the inner walls of the holes h punched in the metal substrate 1 having poor release properties during the breadmaking process, thereby significantly improving the release properties.

[0044] On the other hand, in the case of using the conventional breadmaking tray, as illustrated in FIG. 7, the flour dough comes in contact with the inner walls of the holes h punched in the fluorine resin film 2 having excellent release properties, as well as comes in contact with the inner walls of the holes h punched in the metal substrate 1 having poor release properties during the breadmaking process, thereby resulting in a significant reduction in the release properties.

DESCRIPTION OF REFERENCE NUMERALS

[0045] A: frame [0046] B: breadmaking tray body [0047] C: flour dough [0048] D: base plate [0049] H: hole [0050] 1: metal substrate [0051] 2: fluorine resin film [0052] 3: fluorine resin coating layer

INDUSTRIAL APPLICABILITY

[0053] The breadmaking tray of the present invention may be used not only as a tray for making bread with flour dough, but also as other trays for making foods such as dumplings with flour dough.