Automatic film ironing process

Abstract

The invention relates to the field of packaging labeling, and discloses an automatic film ironing process which comprises the following steps: step 1, cutting and treating a label according to the shape and size of a packaging material; 2, the surface of the packaging material is subjected to dust removal operation, and it is guaranteed that the surface of the packaging material is smooth and dust-free; thirdly, the surface of the packaging material is coated with glue; fourthly, the label cut in advance is placed at the designated position of the packaging material; 5, starting the film ironing machine, melting the adhesive of the label through heating, and applying proper pressure to tightly combine the label with the packaging material; sixthly, after film stamping is completed, the packaging material is taken out of the film stamping machine, the packaging material is cooled and solidified at the room temperature, and it is guaranteed that bonding between the label and the packaging material is firmer; and 7, the quality and the appearance effect of the hot-stamping film are checked. According to the automatic film ironing process, the problem that glue is prone to overflowing during manual labeling is solved, and automatic production is achieved.

Description

Technical Field

[0001] The present application relates to the field of packaging technology, and more specifically, to an automated hot stamping process. Background Art

[0002] With the continuous expansion of the market for mid-to-high-end products in my country, product packaging design is becoming more and more complex. Labeling is an important part of the product packaging process. The packaging label is the main carrier of product information. The label usually contains important information such as the product name, specifications, ingredients, production date, shelf life, instructions for use, etc., and the label is an important part of product brand identification. By designing unique and eye-catching labels, companies can attract consumers' attention at the first time and convey brand image and values. Elements such as brand names and logos on the label help consumers quickly identify the brand among many products, thereby enhancing brand memory and loyalty.

[0003] At present, most packaging labeling methods are manual labeling, that is, the operator first applies glue on the synthetic paper and then performs the labeling operation. This process has the following problems: 1) Glue overflow is prone to occur; 2) The label and film are easily offset when bonded, which is not beautiful; 3) Manual labeling is inefficient and cannot be automated. Summary of the invention

[0004] In order to solve the problem of easy glue overflow in manual labeling in the prior art, improve the aesthetics of the adhesion between the label and the film, and greatly improve the work efficiency of labeling, thereby realizing automated production, the present application provides an automated hot stamping process.

[0005] The present application provides an automated hot stamping process, including the following contents:

[0006] An automated hot stamping process comprises the following steps:

[0007] Step 1: Cut and process the labels according to the shape and size of the packaging material. This step is performed using an automated cutting machine.

[0008] Step 2: Remove dust from the surface of the packaging material to ensure that the surface of the packaging material is smooth and dust-free. This step is performed using an automatic dust removal machine;

[0009] Step 3: Apply glue to the surface of the packaging material, which is carried out using an automatic glue coating machine;

[0010] Step 4: Place the pre-cut label on the designated position of the packaging material and ensure that it is aligned with the surface of the packaging material. This step is performed by an automated robot.

[0011] Step 5: Start the hot stamping machine, heat the label to melt the hot stamping film, and apply appropriate pressure to make the label and the packaging material tightly bonded. During the process, the hot stamping film of the label melts and is firmly adhered to the packaging material by pressure;

[0012] Step 6: After the hot stamping is completed, take the packaging material out of the hot stamping machine and let it cool and solidify at room temperature to ensure that the bond between the label and the packaging material is stronger;

[0013] Step 7: Check the quality and appearance of the hot stamping film, and perform trimming and finishing as needed to ensure that the label is attached flatly without bubbles, wrinkles and other defects.

[0014] In a feasible implementation, in step one, the automated cutting machine uses a high-precision laser cutting machine to accurately cut labels according to preset graphics and sizes; processing the labels after cutting refers to removing burrs on the cutting edges and adjusting the shape of the labels to meet special shape requirements.

[0015] In a feasible implementation, in step 2, the automatic dust removal machine uses high-pressure airflow or electrostatic adsorption dust removal equipment.

[0016] In a feasible implementation, in step three, the glue used for coating includes the following components, calculated by weight: 20 to 30 parts of styrene-ethylene / propylene-styrene block copolymer; 20 to 30 parts of polyisobutylene; 15 to 30 parts of maleic anhydride grafted modified polybutadiene; 20 to 40 parts of tackifier; 3 to 15 parts of plasticizer; and 0.5 to 1 part of antioxidant.

[0017] In a feasible implementation manner, the mass percentage of styrene units in the styrene-ethylene / propylene-styrene block copolymer is 8-12%.

[0018] In a feasible implementation manner, the melt index of the styrene-ethylene / propylene-styrene block copolymer is 1500-2000 g / 10 min, and the melt index test conditions are 190° C. / 2.16 kg.

[0019] In a feasible implementation, in step three, the glue used for coating includes the following components, calculated by mass: 25 parts of styrene-ethylene / propylene-styrene block copolymer; 25 parts of polyisobutylene; 22 parts of maleic anhydride grafted modified polybutadiene; 30 parts of tackifier; 8 parts of plasticizer; and 0.7 parts of antioxidant.

[0020] In a feasible implementation manner, it is characterized in that, in step five, the hot stamping film of the label is a BOPP film.

[0021] In a feasible implementation manner, in step five, the temperature of the hot stamping process is 100-130°C.

[0022] In a feasible implementation manner, in step five, the temperature of the hot stamping process is 115°C.

[0023] In summary, this application has the following beneficial effects:

[0024] 1. The automated hot stamping process of the present application adopts mechanical automated production to replace the traditional manual gluing and labeling, which makes the process more precise and solves the problem of easy glue overflow in manual labeling.

[0025] 2. The automated hot stamping process of the present application, through the cooperation of automated machinery in each step, greatly reduces the probability of deviation between the label and the film after bonding, making the labeling more beautiful.

[0026] 3. The automated hot stamping process of the present application greatly improves the efficiency of labeling and realizes automated production. DETAILED DESCRIPTION

[0027] The technical scheme and effects of the present application are further described in detail below in conjunction with the embodiments. It should be understood that the specific embodiments described herein are only used to explain the invention, rather than to limit the invention.

[0028] Example 1

[0029] An automated hot stamping process comprises the following steps:

[0030] Step 1: Cut and process the labels according to the shape and size of the packaging material. This step is performed using an automated cutting machine.

[0031] Step 2: Remove dust from the surface of the packaging material to ensure that the surface of the packaging material is smooth and dust-free. This step is performed using an automatic dust removal machine;

[0032] Step 3: Apply glue to the surface of the packaging material, which is carried out using an automatic glue coating machine;

[0033] Step 4: Place the pre-cut label on the designated position of the packaging material and ensure that it is aligned with the surface of the packaging material. This step is performed by an automated robot.

[0034] Step 5: Start the hot stamping machine, heat the label to melt the hot stamping film, and apply appropriate pressure to make the label and the packaging material tightly bonded. During the process, the hot stamping film of the label melts and is firmly adhered to the packaging material by pressure;

[0035] Step 6: After the hot stamping is completed, take the packaging material out of the hot stamping machine and let it cool and solidify at room temperature to ensure that the bond between the label and the packaging material is stronger;

[0036] Step 7: Check the quality and appearance of the hot stamping film, and perform trimming and finishing as needed to ensure that the label is attached flatly without bubbles, wrinkles and other defects.

[0037] Furthermore, in step one, the automated cutting machine uses a high-precision laser cutting machine to accurately cut labels according to preset graphics and sizes; processing the labels after cutting refers to removing burrs on the cutting edges and adjusting the shape of the labels to meet special shape requirements.

[0038] Furthermore, in step 2, the automatic dust collector uses high-pressure airflow or electrostatic adsorption dust removal equipment.

[0039] Furthermore, in step three, the glue used for coating includes the following components, calculated by mass: 20 parts of styrene-ethylene / propylene-styrene block copolymer; 20 parts of polyisobutylene; 15 parts of maleic anhydride grafted modified polybutadiene; 20 parts of tackifier; 3 parts of plasticizer; and 0.5 parts of antioxidant.

[0040] The mass percentage of styrene units in the styrene-ethylene / propylene-styrene block copolymer is 8%.

[0041] The melt index of the styrene-ethylene / propylene-styrene block copolymer is 1500-2000 g / 10 min, and the melt index test condition is 190° C. / 2.16 kg.

[0042] Furthermore, in step five, the hot stamping film of the label is a BOPP film.

[0043] Furthermore, in step five, the temperature of the hot stamping process is 100°C.

[0044] Example 2

[0045] An automated hot stamping process comprises the following steps:

[0046] Step 1: Cut and process the labels according to the shape and size of the packaging material. This step is performed using an automated cutting machine.

[0047] Step 2: Remove dust from the surface of the packaging material to ensure that the surface of the packaging material is smooth and dust-free. This step is performed using an automatic dust removal machine;

[0048] Step 3: Apply glue to the surface of the packaging material, which is carried out using an automatic glue coating machine;

[0049] Step 4: Place the pre-cut label on the designated position of the packaging material and ensure that it is aligned with the surface of the packaging material. This step is performed by an automated robot.

[0050] Step 5: Start the hot stamping machine, heat the label to melt the hot stamping film, and apply appropriate pressure to make the label and the packaging material tightly bonded. During the process, the hot stamping film of the label melts and is firmly adhered to the packaging material by pressure;

[0051] Step 6: After the hot stamping is completed, take the packaging material out of the hot stamping machine and let it cool and solidify at room temperature to ensure that the bond between the label and the packaging material is stronger;

[0052] Step 7: Check the quality and appearance of the hot stamping film, and perform trimming and finishing as needed to ensure that the label is attached flatly without bubbles, wrinkles and other defects.

[0053] Furthermore, in step one, the automated cutting machine uses a high-precision laser cutting machine to accurately cut labels according to preset graphics and sizes; processing the labels after cutting refers to removing burrs on the cutting edges and adjusting the shape of the labels to meet special shape requirements.

[0054] Furthermore, in step 2, the automatic dust collector uses high-pressure airflow or electrostatic adsorption dust removal equipment.

[0055] Furthermore, in step three, the glue used for coating includes the following components, calculated by mass: 30 parts of styrene-ethylene / propylene-styrene block copolymer; 30 parts of polyisobutylene; 30 parts of maleic anhydride grafted modified polybutadiene; 40 parts of tackifier; 15 parts of plasticizer; and 1 part of antioxidant.

[0056] The mass percentage of styrene units in the styrene-ethylene / propylene-styrene block copolymer is 12%.

[0057] The melt index of the styrene-ethylene / propylene-styrene block copolymer is 1500-2000 g / 10 min, and the melt index test condition is 190° C. / 2.16 kg.

[0058] Furthermore, in step five, the hot stamping film of the label is a BOPP film.

[0059] Furthermore, in step five, the temperature of the hot stamping process is 130°C.

[0060] Example 3

[0061] An automated hot stamping process comprises the following steps:

[0062] Step 1: Cut and process the labels according to the shape and size of the packaging material. This step is performed using an automated cutting machine.

[0063] Step 2: Remove dust from the surface of the packaging material to ensure that the surface of the packaging material is smooth and dust-free. This step is performed using an automatic dust removal machine;

[0064] Step 3: Apply glue to the surface of the packaging material, which is carried out using an automatic glue coating machine;

[0065] Step 4: Place the pre-cut label on the designated position of the packaging material and ensure that it is aligned with the surface of the packaging material. This step is performed by an automated robot.

[0066] Step 5: Start the hot stamping machine, heat the label to melt the hot stamping film, and apply appropriate pressure to make the label and the packaging material tightly bonded. During the process, the hot stamping film of the label melts and is firmly adhered to the packaging material by pressure;

[0067] Step 6: After the hot stamping is completed, take the packaging material out of the hot stamping machine and let it cool and solidify at room temperature to ensure that the bond between the label and the packaging material is stronger;

[0068] Step 7: Check the quality and appearance of the hot stamping film, and perform trimming and finishing as needed to ensure that the label is attached flatly without bubbles, wrinkles and other defects.

[0069] Furthermore, in step one, the automated cutting machine uses a high-precision laser cutting machine to accurately cut labels according to preset graphics and sizes; processing the labels after cutting refers to removing burrs on the cutting edges and adjusting the shape of the labels to meet special shape requirements.

[0070] Furthermore, in step 2, the automatic dust collector uses high-pressure airflow or electrostatic adsorption dust removal equipment.

[0071] Furthermore, in step three, the glue used for coating includes the following components, calculated by mass: 25 parts of styrene-ethylene / propylene-styrene block copolymer; 25 parts of polyisobutylene; 22 parts of maleic anhydride grafted modified polybutadiene; 30 parts of tackifier; 8 parts of plasticizer; and 0.7 parts of antioxidant.

[0072] The mass percentage of styrene units in the styrene-ethylene / propylene-styrene block copolymer is 12%.

[0073] The melt index of the styrene-ethylene / propylene-styrene block copolymer is 1500-2000 g / 10 min, and the melt index test condition is 190° C. / 2.16 kg.

[0074] Furthermore, in step five, the hot stamping film of the label is a BOPP film.

[0075] Furthermore, in step five, the temperature of the hot stamping process is 130°C.

[0076] Example 4

[0077] An automated hot stamping process comprises the following steps:

[0078] Step 1: Cut and process the labels according to the shape and size of the packaging material. This step is performed using an automated cutting machine.

[0079] Step 2: Remove dust from the surface of the packaging material to ensure that the surface of the packaging material is smooth and dust-free. This step is performed using an automatic dust removal machine;

[0080] Step 3: Apply glue to the surface of the packaging material, which is carried out using an automatic glue coating machine;

[0081] Step 4: Place the pre-cut label on the designated position of the packaging material and ensure that it is aligned with the surface of the packaging material. This step is performed by an automated robot.

[0082] Step 5: Start the hot stamping machine, heat the label to melt the hot stamping film, and apply appropriate pressure to make the label and the packaging material tightly bonded. During the process, the hot stamping film of the label melts and is firmly adhered to the packaging material by pressure;

[0083] Step 6: After the hot stamping is completed, take the packaging material out of the hot stamping machine and let it cool and solidify at room temperature to ensure that the bond between the label and the packaging material is stronger;

[0084] Step 7: Check the quality and appearance of the hot stamping film, and perform trimming and finishing as needed to ensure that the label is attached flatly without bubbles, wrinkles and other defects.

[0085] Furthermore, in step one, the automated cutting machine uses a high-precision laser cutting machine to accurately cut labels according to preset graphics and sizes; processing the labels after cutting refers to removing burrs on the cutting edges and adjusting the shape of the labels to meet special shape requirements.

[0086] Furthermore, in step 2, the automatic dust collector uses high-pressure airflow or electrostatic adsorption dust removal equipment.

[0087] Furthermore, in step three, the glue used for coating includes the following components, calculated by mass: 25 parts of styrene-ethylene / propylene-styrene block copolymer; 25 parts of polyisobutylene; 22 parts of maleic anhydride grafted modified polybutadiene; 30 parts of tackifier; 8 parts of plasticizer; and 0.7 parts of antioxidant.

[0088] The mass percentage of styrene units in the styrene-ethylene / propylene-styrene block copolymer is 10%.

[0089] The melt index of the styrene-ethylene / propylene-styrene block copolymer is 1500-2000 g / 10 min, and the melt index test condition is 190° C. / 2.16 kg.

[0090] Furthermore, in step five, the hot stamping film of the label is a BOPP film.

[0091] Furthermore, in step five, the temperature of the hot stamping process is 130°C.

[0092] Example 5

[0093] An automated hot stamping process comprises the following steps:

[0094] Step 1: Cut and process the labels according to the shape and size of the packaging material. This step is performed using an automated cutting machine.

[0095] Step 2: Remove dust from the surface of the packaging material to ensure that the surface of the packaging material is smooth and dust-free. This step is performed using an automatic dust removal machine;

[0096] Step 3: Apply glue to the surface of the packaging material, which is carried out using an automatic glue coating machine;

[0097] Step 4: Place the pre-cut label on the designated position of the packaging material and ensure that it is aligned with the surface of the packaging material. This step is performed by an automated robot.

[0098] Step 5: Start the hot stamping machine, heat the label to melt the hot stamping film, and apply appropriate pressure to make the label and the packaging material tightly bonded. During the process, the hot stamping film of the label melts and is firmly adhered to the packaging material by pressure;

[0099] Step 6: After the hot stamping is completed, take the packaging material out of the hot stamping machine and let it cool and solidify at room temperature to ensure that the bond between the label and the packaging material is stronger;

[0100] Step 7: Check the quality and appearance of the hot stamping film, and perform trimming and finishing as needed to ensure that the label is attached flatly without bubbles, wrinkles and other defects.

[0101] Furthermore, in step one, the automated cutting machine uses a high-precision laser cutting machine to accurately cut labels according to preset graphics and sizes; processing the labels after cutting refers to removing burrs on the cutting edges and adjusting the shape of the labels to meet special shape requirements.

[0102] Furthermore, in step 2, the automatic dust collector uses high-pressure airflow or electrostatic adsorption dust removal equipment.

[0103] Furthermore, in step three, the glue used for coating includes the following components, calculated by mass: 25 parts of styrene-ethylene / propylene-styrene block copolymer; 25 parts of polyisobutylene; 22 parts of maleic anhydride grafted modified polybutadiene; 30 parts of tackifier; 8 parts of plasticizer; and 0.7 parts of antioxidant.

[0104] The mass percentage of styrene units in the styrene-ethylene / propylene-styrene block copolymer is 10%.

[0105] The melt index of the styrene-ethylene / propylene-styrene block copolymer is 1500-2000 g / 10 min, and the melt index test condition is 190° C. / 2.16 kg.

[0106] Furthermore, in step five, the hot stamping film of the label is a BOPP film.

[0107] Furthermore, in step five, the temperature of the hot stamping process is 115°C.

[0108] Performance Testing

[0109] 1. Appearance inspection

[0110] The packaging materials obtained by the automated hot stamping process described in Examples 1 to 5 were tested respectively to check the flatness, cleanliness (whether there was glue overflow), and neatness (whether there was deviation). Ten volunteers were selected to score the flatness, cleanliness (whether there was glue overflow), and neatness (whether there was deviation).

[0111] Scoring Rules:

[0112] Flatness: Flatness is divided into four levels, namely, poor (there are many obvious concave-convex phenomena on the surface, which affects the use effect), bad (there are many concave-convex phenomena on the surface, but it does not affect the overall use effect), good (the surface flatness is relatively high, with only a few minor concave-convex phenomena, which does not affect the visual and use effect), and good (the surface is completely flat, without any concave-convex phenomena), represented by 1, 2, 3, and 4 respectively;

[0113] Cleanliness (whether there is glue overflow): the cleanliness is divided into four levels, namely poor (there are many obvious glue overflows on the surface, which affects the use effect), poor (there is a lot of glue overflow on the surface, but it does not affect the overall use effect), good (only a small amount of glue overflow on the surface, which does not affect the visual and use effect), and good (no glue overflow on the surface), which are represented by 1, 2, 3, and 4 respectively;

[0114] The uniformity (whether there is a shift) is divided into four levels, namely, poor (there is a significant shift and it cannot be used), bad (there is a significant shift, which affects the use), better (there is a slight shift, which does not affect the use), and good (no significant shift), which are represented by 1, 2, 3, and 4 respectively;

[0115] The test results are recorded in the following table and the average of multiple scores is taken.

[0116] Group Flatness / min Cleanliness (whether there is glue overflow) / min Regularity (whether there is deviation) / min Example 1 3.2 3.3 3.6 Example 2 3.3 3.2 3.5 Example 3 3.6 3.7 3.8 Example 4 3.8 3.9 4 Example 5 3.8 4 4

[0117] It can be seen from the data in the above table that the automated hot stamping process of the present application solves the problem of easy glue overflow in manual labeling, and the average scores of volunteers are all above 3; the process of the present application greatly reduces the probability of deviation after the label and the film are bonded, making the label more beautiful, and the average scores of volunteers are all above 3, and Examples 4 and 5 reach full marks; and the process of the present application also greatly improves the work efficiency of labeling and realizes automated production.

[0118] This specific embodiment is merely an explanation of the present application and is not a limitation of the present application. After reading this specification, those skilled in the art may make modifications to the present embodiment without any creative contribution as needed, but such modifications are protected by the patent law as long as they are within the scope of the claims of the present application.

Claims

1. An automated hot stamping process, characterized in that: The following steps are involved: Step 1: Cut and process the labels according to the shape and size of the packaging material. This step is performed using an automated cutting machine. Step 2: Remove dust from the surface of the packaging material to ensure that the surface of the packaging material is smooth and dust-free. This step is performed using an automatic dust removal machine; Step 3: Apply glue to the surface of the packaging material, which is carried out using an automatic glue coating machine; Step 4: Place the pre-cut label on the designated position of the packaging material and ensure that it is aligned with the surface of the packaging material. This step is performed by an automated robot. Step 5: Start the hot stamping machine, heat the label to melt the hot stamping film, and apply appropriate pressure to make the label and the packaging material tightly bonded. During the process, the hot stamping film of the label melts and is firmly adhered to the packaging material by pressure; Step 6: After the hot stamping is completed, take the packaging material out of the hot stamping machine and let it cool and solidify at room temperature to ensure that the bond between the label and the packaging material is stronger; Step 7: Check the quality and appearance of the hot stamping film, and perform trimming and finishing as needed to ensure that the label is attached flatly without bubbles, wrinkles and other defects.

2. The automatic hot stamping process according to claim 1, characterized in that: In step one, the automated cutting machine uses a high-precision laser cutting machine to accurately cut labels according to preset graphics and sizes; processing the labels after cutting refers to removing burrs on the cutting edges and adjusting the shape of the labels to meet special shape requirements.

3. The automatic hot stamping process according to claim 1, characterized in that: In step 2, the automatic dust removal machine uses high-pressure airflow or electrostatic adsorption dust removal equipment.

4. The automatic hot stamping process according to claim 1, characterized in that: In step three, the glue used for coating includes the following components, calculated by mass: 20 to 30 parts of styrene-ethylene / propylene-styrene block copolymer; 20 to 30 parts of polyisobutylene; 15 to 30 parts of maleic anhydride grafted modified polybutadiene; 20 to 40 parts of tackifier; 3 to 15 parts of plasticizer; and 0.5 to 1 part of antioxidant.

5. The automatic hot stamping process according to claim 4, characterized in that: The mass percentage of styrene units in the styrene-ethylene / propylene-styrene block copolymer is 8-12%.

6. The automatic hot stamping process according to claim 4, characterized in that: The melt index of the styrene-ethylene / propylene-styrene block copolymer is 1500-2000 g / 10 min, and the melt index test condition is 190° C. / 2.16 kg.

7. The automatic hot stamping process according to claim 4, characterized in that: In step three, the glue used for coating includes the following components, calculated by mass: 25 parts of styrene-ethylene / propylene-styrene block copolymer; 25 parts of polyisobutylene; 22 parts of maleic anhydride grafted modified polybutadiene; 30 parts of tackifier; 8 parts of plasticizer; and 0.7 parts of antioxidant.

8. The automatic hot stamping process according to claim 1, characterized in that: In step five, the hot stamping film of the label is a BOPP film.

9. The automatic hot stamping process according to claim 8, characterized in that: In step 5, the temperature of the hot stamping process is 100-130°C.

10. The automatic hot stamping process according to claim 9, characterized in that: In step 5, the temperature of the hot stamping process is 115°C.