Baked pastry food surface printing process

Abstract

The invention relates to the technical field of food processing, in particular to a baking type pastry food surface printing technology which at least comprises the steps of cake blank making, printing, baking in an oven, alcohol spraying and packaging. According to the baking type pastry food surface printing technology, printing treatment is carried out before pastry baking and alcohol spraying treatment is carried out after pastry baking, so that the prepared pastry surface printing pattern effect is bright in color, color losing and falling are not prone to occurring, and the preservation time is long.

Description

Technical Field

[0001] The invention relates to the technical field of food processing, and in particular to a surface printing process for baked pastry food. Background Art

[0002] With the improvement of living standards, people's demands and quality requirements for food, clothing, housing and transportation are also increasing, especially for food. Color, fragrance and taste have become the standards for the public to judge food. Among them, baked pastries are foods that people often eat in daily life. Most manufacturers use printing to enhance the beauty of pastries and increase customers' appetite and purchasing desire.

[0003] The existing conventional surface printing process for baked cakes is to print on the surface through a food printing machine after the cakes are made. Chinese invention patent CN105851871A discloses a cake making process, but the printing effect will result in the color not being bright enough, the surface ink pattern is easily rubbed off and incomplete after packaging, and the pattern is easy to fall off after a period of time. Summary of the invention

[0004] In order to solve the problems in the prior art, the present invention provides a surface printing process for baked pastry food, which at least includes the steps of making cake embryos, printing, baking in an oven, spraying alcohol, and packaging.

[0005] In one embodiment, the step of making the cake embryo comprises:

[0006] a. Add granulated sugar to butter and stir with a mixer to obtain a sugar-oil mixture, add eggs to the sugar-oil mixture and continue stirring to mix evenly;

[0007] b. Evenly mix the mixed flour, pigment powder, baking soda, baking powder and milk powder to obtain a powder mixture;

[0008] c. Evenly stir the sugar-oil mixture and the flour mixture to obtain a dough, and let the dough stand at a temperature of 18-22° C. for 25-35 minutes;

[0009] d. Wrap the fillings in the dough and put it into a roller printing machine or a mold to print and press to obtain a cake embryo.

[0010] In one embodiment, the step c specifically comprises: uniformly stirring the sugar-oil mixture and the flour mixture to obtain a dough, and letting the dough stand at a temperature of 20° C. for 30 minutes.

[0011] In one embodiment, the mixed flour is a mixture of high-gluten flour and low-gluten flour, and the mass ratio of the high-gluten flour to the low-gluten flour is 3:7.

[0012] In one embodiment, the printing step includes: using a printing device to print a customized pattern on the cake blank.

[0013] In one embodiment, the printing speed of the printing equipment is 12-25m / min.

[0014] In one embodiment, the printing speed of the printing equipment is 15m / min.

[0015] In one embodiment, the distance between the upper surface of the cake embryo and the nozzle of the printing equipment is 3-8 mm.

[0016] In one embodiment, the distance between the upper surface of the cake embryo and the nozzle of the printing equipment is 5 mm.

[0017] In one embodiment, the printing device uses edible natural ink to print patterns. The edible natural ink is produced by Wuhan Shanyin Technology Co., Ltd. and the brand is Shanyin RG6202M.

[0018] In one embodiment, the printing equipment uses the S343 printing machine of Wuhan Shanyin Technology Co., Ltd.

[0019] In one embodiment, the oven baking step includes: preheating the oven for 10 minutes at 180°C, placing the cake embryo that has undergone the printing step into the oven and baking at 180°C for 18-20 minutes.

[0020] In one embodiment, the oven baking step is specifically as follows: preheat the oven for 10 minutes at 180° C., and place the cake embryo that has undergone the printing step into the oven and bake at 180° C. for 20 minutes.

[0021] In one embodiment, the process further comprises a cooling step, wherein the cooling step adopts either cooling by a cooling tower or natural cooling.

[0022] In one embodiment, the cooling step uses cooling tower cooling.

[0023] The cooling step and the alcohol spraying step are not fixed in this application.

[0024] In one embodiment, the cooling step is: conveying the cake embryo baked in the oven to a cooling tower and cooling it to room temperature within 35 minutes.

[0025] In one embodiment, the cooling step is: conveying the cake embryo that has undergone the alcohol spraying step to a cooling tower and cooling it to room temperature within 35 minutes.

[0026] In one embodiment, the alcohol spraying step uses a sprayer to evenly coat the surface of the cake embryo with alcohol having a mass concentration of 50-75%.

[0027] In one embodiment, the alcohol spraying step includes: directly using a sprayer to evenly coat the surface of the cake embryo with alcohol having a mass concentration of 50-75% without allowing the cake embryo to stand after the cooling step.

[0028] In one embodiment, the alcohol spraying step includes: directly using a sprayer to evenly coat the surface of the cake embryo with alcohol having a mass concentration of 50-75% without allowing the cake embryo to stand after the oven baking step.

[0029] In one embodiment, the relationship between the alcohol spraying amount and the size of the cake embryo is: when the diameter of a single cake embryo is 15 cm, the alcohol spraying amount is 1 g.

[0030] In one embodiment, the packaging is in the form of a packaging box.

[0031] Beneficial Effects

[0032] 1. The surface printing process for baked pastry food provided by the present invention makes the printed pattern effect on the surface of the processed pastry bright in color, long in storage time, and will not fade or fall off easily.

[0033] 2. The present invention prints the cakes before baking and sprays them with 50-75% alcohol after baking, so as to dissolve the oil film on the surface of the cake crust, allow the printing ink to penetrate, and better fix the color. Meanwhile, spraying alcohol can effectively extend the shelf life of the cakes.

[0034] 3. The present invention prints before baking the cakes, which can prevent the printed pattern from being dull, unclear and uneven in color. The possible reason is that when the printing is completed after baking, an oil film is formed on the surface of the cake, and the ink cannot penetrate into the cake skin, but floats on the surface, which is easy to cause diffusion.

[0035] 4. The present invention needs to strictly control the distance between the upper surface of the cake embryo and the nozzle of the printing equipment to 3-8mm. There are slight differences in the height of the cake embryo on the assembly line. If the distance is too small, the nozzle will be too low and will hit the product; if the distance is too large, the edge printing pattern will be blurred.

[0036] 5. The surface printing process for baked pastry food provided by the present invention is simple, can be applied to industrial production, and has higher practical value. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 This is a real shot of the surface printing of the baked pastry food prepared in Example 1.

[0038] Figure 2 This is a real shot of the surface printing of the baked pastry food prepared in Comparative Example 1.

[0039] Figure 3This is a real shot of the surface printing of the baked pastry food prepared in Comparative Example 2.

[0040] Figure 4 This is a real shot of the surface printing of the baked pastry food prepared in Comparative Example 3.

[0041] Figure 5 This is a real shot of the surface printing of the baked pastry food prepared in Comparative Example 4. DETAILED DESCRIPTION

[0042] In order to make the purpose, technical scheme and advantages of the present invention clearer, the present invention is further described in detail below in conjunction with the examples and drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention. The experimental methods in the embodiments where specific conditions are not specified are carried out under conventional conditions or conditions recommended by the manufacturer. The raw materials or instruments used where the manufacturer is not specified are all conventional products that can be purchased commercially.

[0043] Example 1

[0044] The present embodiment provides a surface printing process for baked pastry food, including the steps of making a cake base, printing, baking in an oven, cooling, spraying alcohol, and packaging.

[0045] The steps of making the cake embryo include:

[0046] a. Add granulated sugar to butter and stir with a mixer to obtain a sugar-oil mixture, add eggs to the sugar-oil mixture and continue stirring to mix evenly;

[0047] b. Evenly mix the mixed flour, pigment powder, baking soda, baking powder and milk powder to obtain a powder mixture;

[0048] c. Evenly stir the sugar-oil mixture and the flour mixture to obtain a dough, and let the dough stand at 20° C. for 30 minutes;

[0049] d. Wrap the fillings in the dough and put it into a roller printing machine or a mold to print and press to obtain a cake embryo.

[0050] The mixed flour is a mixture of high-gluten flour and low-gluten flour, and the mass ratio of the high-gluten flour to the low-gluten flour is 3:7.

[0051] The printing step includes: using a printing device to print a customized pattern on the cake embryo.

[0052] The printing speed of the printing equipment is 15m / min.

[0053] The distance between the upper surface of the cake embryo and the nozzle of the printing equipment is 5 mm.

[0054] The printing device uses edible natural ink with the brand number of Shanyin RG6202M to print patterns.

[0055] The printing equipment adopts the S343 printing machine of Wuhan Shanyin Technology Co., Ltd.

[0056] The oven baking step is specifically as follows: preheating the oven for 10 minutes at 180° C., placing the cake embryo after the printing step into the oven and baking at 180° C. for 20 minutes.

[0057] The cooling step is: conveying the cake embryo baked in the oven to a cooling tower and cooling it to room temperature within 35 minutes.

[0058] The alcohol spraying step comprises: directly using a sprayer to evenly coat the surface of the cake embryo with alcohol having a mass concentration of 50-75% without leaving the cake embryo to stand.

[0059] The relationship between the alcohol spraying amount and the size of the cake embryo is: the diameter of a single cake embryo is 15 cm, and the alcohol spraying amount is 1 g.

[0060] The packaging is box packaging.

[0061] Figure 1 This is a real shot of the surface printing of the baked pastry food prepared in Example 1.

[0062] Comparative Example 1

[0063] The present embodiment provides a surface printing process for baked pastry food, including the steps of making a cake base, printing, baking in an oven, cooling, and packaging.

[0064] The steps of making the cake embryo include:

[0065] a. Add granulated sugar to butter and stir with a mixer to obtain a sugar-oil mixture, add eggs to the sugar-oil mixture and continue stirring to mix evenly;

[0066] b. Evenly mix the mixed flour, pigment powder, baking soda, baking powder and milk powder to obtain a powder mixture;

[0067] c. Evenly stir the sugar-oil mixture and the flour mixture to obtain a dough, and let the dough stand at 20° C. for 30 minutes;

[0068] d. Wrap the fillings in the dough and put it into a roller printing machine or a mold to print and press to obtain a cake embryo.

[0069] The mixed flour is a mixture of high-gluten flour and low-gluten flour, and the mass ratio of the high-gluten flour to the low-gluten flour is 3:7.

[0070] The printing step includes: using a printing device to print a customized pattern on the cake embryo.

[0071] The printing speed of the printing equipment is 15m / min.

[0072] The distance between the upper surface of the cake embryo and the nozzle of the printing equipment is 5 mm.

[0073] The printing device uses edible natural ink with the brand number of Shanyin RG6202M to print patterns.

[0074] The printing equipment adopts the S343 printing machine of Wuhan Shanyin Technology Co., Ltd.

[0075] The oven baking step is specifically as follows: preheating the oven for 10 minutes at 180° C., placing the cake embryo after the printing step into the oven and baking at 180° C. for 20 minutes.

[0076] The cooling step is: conveying the cake embryo baked in the oven to a cooling tower and cooling it to room temperature within 35 minutes.

[0077] The packaging is box packaging.

[0078] Figure 2 This is a real shot of the surface printing of the baked pastry food prepared in Comparative Example 1.

[0079] Comparative Example 2

[0080] The present embodiment provides a surface printing process for baked pastry food, including the steps of making a cake base, printing, spraying alcohol, baking in an oven, cooling, and packaging.

[0081] The steps of making the cake embryo include:

[0082] a. Add granulated sugar to butter and stir with a mixer to obtain a sugar-oil mixture, add eggs to the sugar-oil mixture and continue stirring to mix evenly;

[0083] b. Evenly mix the mixed flour, pigment powder, baking soda, baking powder and milk powder to obtain a powder mixture;

[0084] c. Evenly stir the sugar-oil mixture and the flour mixture to obtain a dough, and let the dough stand at 20° C. for 30 minutes;

[0085] d. Wrap the fillings in the dough and put it into a roller printing machine or a mold to print and press to obtain a cake embryo.

[0086] The mixed flour is a mixture of high-gluten flour and low-gluten flour, and the mass ratio of the high-gluten flour to the low-gluten flour is 3:7.

[0087] The printing step includes: using a printing device to spray-print a customized pattern on the prepared cake embryo.

[0088] The printing speed of the printing equipment is 15m / min.

[0089] The distance between the upper surface of the cake embryo and the nozzle of the printing equipment is 5 mm.

[0090] The printing device uses edible natural ink with the brand number of Shanyin RG6202M to print patterns.

[0091] The printing equipment adopts the S343 printing machine of Wuhan Shanyin Technology Co., Ltd.

[0092] The alcohol spraying step comprises: directly using a sprayer to evenly coat the surface of the cake embryo with alcohol having a mass concentration of 75% without allowing the cake to stand after the printing step.

[0093] The relationship between the alcohol spraying amount and the size of the cake embryo is: the diameter of a single cake embryo is 15 cm, and the alcohol spraying amount is 1 g.

[0094] The oven baking step is specifically as follows: preheat the oven for 10 minutes at 180° C., and put the cake embryo obtained after spraying alcohol into the oven and bake at 180° C. for 20 minutes.

[0095] The cooling step is: conveying the cake embryo baked in the oven to a cooling tower and cooling it to room temperature within 35 minutes.

[0096] The packaging is box packaging.

[0097] Figure 3 This is a real shot of the surface printing of the baked pastry food prepared in Comparative Example 2.

[0098] Comparative Example 3

[0099] The present embodiment provides a surface printing process for baked pastry food, including the steps of making a cake base, baking in an oven, cooling, printing, spraying alcohol, and packaging.

[0100] The steps of making the cake embryo include:

[0101] a. Add granulated sugar to butter and stir with a mixer to obtain a sugar-oil mixture, add eggs to the sugar-oil mixture and continue stirring to mix evenly;

[0102] b. Evenly mix the mixed flour, pigment powder, baking soda, baking powder and milk powder to obtain a powder mixture;

[0103] c. Evenly stir the sugar-oil mixture and the flour mixture to obtain a dough, and let the dough stand at 20° C. for 30 minutes;

[0104] d. Wrap the fillings in the dough and put it into a roller printing machine or a mold to print and press to obtain a cake embryo.

[0105] The mixed flour is a mixture of high-gluten flour and low-gluten flour, and the mass ratio of the high-gluten flour to the low-gluten flour is 3:7.

[0106] The oven baking step is specifically as follows: preheating the oven for 10 minutes at 180° C., placing the pressed cake embryo into the oven and baking at 180° C. for 20 minutes.

[0107] The cooling step is: conveying the cake embryo baked in the oven to a cooling tower and cooling it to room temperature within 35 minutes.

[0108] The printing step includes: using a printing device to print a customized pattern on the cake embryo after the cooling step.

[0109] The printing speed of the printing equipment is 15m / min.

[0110] The distance between the upper surface of the cake embryo and the nozzle of the printing equipment is 5 mm.

[0111] The printing device uses edible natural ink with the brand number of Shanyin RG6202M to print patterns.

[0112] The printing equipment adopts the S343 printing machine of Wuhan Shanyin Technology Co., Ltd.

[0113] The alcohol spraying step comprises: directly using a sprayer to evenly coat the surface of the cake embryo with alcohol having a mass concentration of 75% without allowing the cake embryo to stand after the printing step.

[0114] The relationship between the alcohol spraying amount and the size of the cake embryo is: the diameter of a single cake embryo is 15 cm, and the alcohol spraying amount is 1 g.

[0115] The packaging is box packaging.

[0116] Figure 4 This is a real shot of the surface printing of the baked pastry food prepared in Comparative Example 3.

[0117] Comparative Example 4

[0118] The present embodiment provides a surface printing process for baked pastry food, including the steps of making a cake base, printing, baking in an oven, cooling, spraying alcohol, and packaging.

[0119] The steps of making the cake embryo include:

[0120] a. Add granulated sugar to butter and stir with a mixer to obtain a sugar-oil mixture, add eggs to the sugar-oil mixture and continue stirring to mix evenly;

[0121] b. Evenly mix the mixed flour, pigment powder, baking soda, baking powder and milk powder to obtain a powder mixture;

[0122] c. Evenly stir the sugar-oil mixture and the flour mixture to obtain a dough, and let the dough stand at 20° C. for 30 minutes;

[0123] d. Wrap the fillings in the dough and put it into a roller printing machine or a mold to print and press to obtain a cake embryo.

[0124] The mixed flour is a mixture of high-gluten flour and low-gluten flour, and the mass ratio of the high-gluten flour to the low-gluten flour is 3:7.

[0125] The printing step includes: using a printing device to print a customized pattern on the cake embryo.

[0126] The printing speed of the printing equipment is 15m / min.

[0127] The distance between the upper surface of the cake embryo and the nozzle of the printing equipment is 5 mm.

[0128] The printing device uses edible natural ink with the brand number of Shanyin RG6202M to print patterns.

[0129] The printing equipment adopts the S343 printing machine of Wuhan Shanyin Technology Co., Ltd.

[0130] The oven baking step is specifically as follows: preheating the oven for 10 minutes at 180° C., placing the cake embryo after the printing step into the oven and baking at 180° C. for 20 minutes.

[0131] The cooling step is: conveying the cake embryo baked in the oven to a cooling tower and cooling it to room temperature within 35 minutes.

[0132] The alcohol spraying step comprises: directly using a sprayer to evenly coat the surface of the cake embryo with alcohol having a mass concentration of 30% without allowing the cake embryo to stand still after the oven baking step.

[0133] The relationship between the alcohol spraying amount and the size of the cake embryo is: the diameter of a single cake embryo is 15 cm, and the alcohol spraying amount is 1 g.

[0134] The packaging is box packaging.

[0135] Figure 5 This is a real shot of the surface printing of the baked pastry food prepared in Comparative Example 4.

[0136] Performance Testing

[0137] Printing pattern clarity and uniformity test

[0138] Samples: samples prepared in Example 1 and Comparative Examples 1-4.

[0139] Test method: Observe with naked eyes whether the printed patterns on the surface of each sample are incomplete, the colors are not bright and clear, and the colors are uneven. The test results are shown in Table 1.

[0140] Table 1

[0141] serial number Is the pattern incomplete, the color unclear, or the color uneven? Example 1 no Comparative Example 1 yes Comparative Example 2 yes Comparative Example 3 yes Comparative Example 4 yes

[0142] Combining Table 1 and Figure 1-5 It can be seen that the cakes prepared by the surface printing process for baked cake foods provided by the present invention have surface printing patterns that are brightly colored and complete.

[0143] Compared with Example 1, Comparative Example 1 lacks the step of spraying alcohol after printing. Although the ink can be absorbed, the absorption effect is not ideal. The ink of some printed patterns falls off after packaging, and the patterns are incomplete.

[0144] Compared with Example 1, Comparative Example 2 includes the steps of printing and spraying alcohol before baking, which may cause peeling compared with printing first and then baking.

[0145] Compared with Example 1, Comparative Example 3 performs the steps of printing and spraying alcohol after baking. Compared with printing first and then baking, an oil film is formed on the surface of the cake after baking, and the ink cannot penetrate into the crust and floats on the surface, causing diffusion, resulting in the pattern color being dark and not bright, and after spraying alcohol, the printed pattern will dissolve.

[0146] Compared with Example 1, Comparative Example 4 uses 30% alcohol by mass concentration for spraying, which can cause the cake to easily crack and peel. If the alcohol mass concentration used is higher than 75%, there will be safety hazards in the production process.

Claims

1. A surface printing process for baked pastry food, characterized in that: It at least includes the steps of making the dough, printing, oven baking, spraying alcohol and packaging.

2. The surface printing process for baked pastry food according to claim 1, characterized in that: The steps of making the cake embryo include: a. Add granulated sugar to butter and stir with a mixer to obtain a sugar-oil mixture, add eggs to the sugar-oil mixture and continue stirring to mix evenly; b. Evenly mix the mixed flour, pigment powder, baking soda, baking powder and milk powder to obtain a powder mixture; c. Evenly stir the sugar-oil mixture and the flour mixture to obtain a dough, and let the dough stand at a temperature of 18-22° C. for 25-35 minutes; d. Wrap the fillings in the dough and put it into a roller printing machine or a mold to print and press to obtain a cake embryo.

3. The surface printing process for baked pastry food according to claim 2, characterized in that: The mixed flour is a mixture of high-gluten flour and low-gluten flour, and the mass ratio of the high-gluten flour to the low-gluten flour is 3:

7.

4. The surface printing process for baked pastry food according to claim 1, characterized in that: The printing step includes: using a printing device to print a customized pattern on the cake embryo.

5. The surface printing process for baked pastry food according to claim 4, characterized in that: The printing speed of the printing equipment is 12-25m / min.

6. The surface printing process for baked pastry food according to claim 4 or 5, characterized in that: The distance between the upper surface of the cake embryo and the nozzle of the printing equipment is 3-8 mm.

7. The surface printing process for baked pastry food according to claim 1, characterized in that: The oven baking step comprises: preheating the oven for 10 minutes at 180° C., placing the cake embryo after the printing step into the oven and baking at 180° C. for 18-20 minutes.

8. The surface printing process for baked pastry food according to claim 1, characterized in that: The method further comprises a cooling step, wherein the cooling step adopts cooling by a cooling tower or natural cooling.

9. The surface printing process for baked pastry food according to claim 7, characterized in that: In the alcohol spraying step, a sprayer is used to evenly coat the surface of the cake embryo with alcohol having a mass concentration of 50-75%.

10. The surface printing process for baked pastry food according to claim 9, characterized in that: The relationship between the alcohol spraying amount and the size of the cake embryo is: when the diameter of a single cake embryo is 15 cm, the alcohol spraying amount is 1 g.

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