Cooking-resistant polypropylene printing ink and manufacturing process thereof

Abstract

The invention provides cooking-resistant polypropylene printing ink and a manufacturing process, and relates to the technical field of printing ink manufacturing, the manufacturing process comprises the following steps: adding chlorinated polypropylene and a mixed solvent into a reaction kettle, heating and dissolving; adding a titanate coupling agent and stirring at a low speed; adding the high-temperature phthalocyanine blue pigment and the nano silicon dioxide dispersing agent into emulsification equipment; starting emulsifying equipment, carrying out high-speed shearing and emulsifying for 30 minutes, starting external vacuumizing equipment, and carrying out periodic vacuumizing treatment on air in the defoaming assembly; according to the invention, through the whole emulsification equipment, a large-batch automatic emulsification processing process can be realized, and the requirement on the specification of stirring power equipment for emulsification is reduced; the quantitative feeding tank is used for pushing the injected raw material part, so that the solution can be emulsified in the shearing and emulsifying assembly in a flowing state, and the emulsifying efficiency is kept consistent and uniform.

Description

Technical Field

[0001] The invention relates to the technical field of ink manufacturing, in particular to a boiling-resistant polypropylene ink and a manufacturing process. Background Art

[0002] Polypropylene is a colorless, odorless, non-toxic thermoplastic synthetic resin commonly used as a binder for inks. Binders disperse pigments in inks and impart appropriate viscosity, fluidity, and transfer properties. Because polypropylene has excellent processability and adhesion, it can be used as an adhesive layer for extruded composite films, as a hot melt adhesive, and even as a compatibilizer for PP with other polar polymers such as polyamide (PA). Ink primarily consists of pigments, binders, fillers, and additives. Pigments are the primary color-developing component of inks, and common pigments include organic and inorganic pigments. Therefore, a variety of inorganic non-metallic materials are used in the preparation of inks.

[0003] In the existing technology, the preparation process of anti-cooking polypropylene ink requires shear emulsification to disperse the slurry and thus control its actual fineness. However, the existing emulsification equipment is inefficient. The internal shear emulsification blade part can only provide high-speed emulsification processing for raw materials within a fixed range. This results in the overall emulsification capacity being limited and the emulsification quality in different areas varying. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the purpose of the present invention is to provide a cooking-resistant polypropylene ink and a manufacturing process to solve the problems raised in the above-mentioned background technology. The present invention reduces the energy consumption required for dispersion and improves the control accuracy of fineness by combining vacuum high-speed shear emulsification with multi-stage grinding. The emulsification equipment as a whole can realize large-scale automatic emulsification processing, and the specification requirements for the stirring power equipment used for emulsification are reduced; a quantitative feeding tank is used to push the injected raw material part, so that the solution can be emulsified inside the shear emulsification component in a flowing state, ensuring that the emulsification efficiency of all raw materials is ultimately consistent and uniform.

[0005] In order to achieve the above object, the present invention is implemented through the following technical solution: a process for manufacturing a boiling-resistant polypropylene ink, which includes the following steps:

[0006] S1. Add chlorinated polypropylene and mixed solvent into the reactor and heat to 60°C to dissolve;

[0007] S2. Add 0.5% titanate coupling agent and stir at low speed for 30 minutes;

[0008] S3, adding high-temperature phthalocyanine blue pigment and nano-silica dispersant into the emulsification equipment, and setting the operating speed of the driving mechanism in the emulsification equipment;

[0009] S4. Start the emulsification equipment and perform high-speed shear emulsification for 30 minutes to initially disperse the slurry until the slurry fineness meets the standard. During this process, start the external vacuum equipment to periodically vacuum the air inside the defoaming component;

[0010] S5, removing microbubbles and adjusting the solvent volatilization gradient;

[0011] S6. After filtration, fill into sealed metal barrels and fill with nitrogen for protection.

[0012] Furthermore, in step S1, the concentration of chlorinated polypropylene is chlorinated polypropylene, the mixed solvent includes ethyl acetate and cyclohexanone, and the ratio of ethyl acetate to cyclohexanone is 6:4, and the constant temperature dissolution time is 2 hours; the stirring speed in step S2 is 400 rpm.

[0013] Furthermore, in step S3, the high-temperature phthalocyanine blue pigment and nano-silica dispersant are first injected into the interior of the quantitative delivery tank, and the driving mechanism at the top is started. After the driving mechanism is running, the motor drives the screw to rotate, and the screw cooperates with the threaded sleeve to drive the entire quantitative pressing mechanism to move up and down. The quantitative pressing mechanism pushes the injected raw materials toward the bottom until they are delivered to the interior of the defoaming component.

[0014] Furthermore, in step S4, the raw material is transported from the feeding pipe at the bottom to the interior of the defoaming component and defoamed in the defoaming component. The entire defoaming process includes the following:

[0015] During the downward movement of the quantitative pressing mechanism, the first solenoid valve and the second solenoid valve remain in the open state, so that the part of the raw material that has been defoamed inside the defoaming component is pushed along with the raw material injected into the feeding pipe, and flows along the diversion pipe to the emulsification tank at the end to undergo a high-speed shear emulsification process.

[0016] Furthermore, when the quantitative pressing mechanism moves upward as the driving mechanism rotates in the opposite direction, the first solenoid valve and the second solenoid valve are synchronously controlled to be closed, so that a closed cavity is formed inside the defoaming component, and the space inside the defoaming tank is simultaneously formed into an approximate negative pressure state through a vacuum pipe connected to a vacuum equipment. The injected raw materials are dispersed inside the defoaming tank through multiple partitions, and the diversion layers between adjacent partitions correspond to independent docking sleeves respectively.

[0017] Furthermore, the docking sleeve extracts the air inside each corresponding diversion layer through the exhaust holes opened on the surface, so that an effective negative pressure state is formed inside each diversion layer. The driving mechanism at the end rotates forward again and starts to push the raw materials inside the quantitative feeding tank. After the raw materials are defoamed inside the defoaming component, they are continuously transported to the inside of the shear emulsification component.

[0018] Furthermore, after the driving mechanism is started, the motor controls the rotation of the screw, and the surface of the screw drives the driving gear to rotate. The driving gear is linked to the driven gear at the other end through the toothed belt set on the side. An acceleration gear set structure is formed between the driven gear and the driving gear, so that the driven shaft part drives the shear frame at the end to operate at high speed, thereby achieving the purpose of high-speed shear emulsification of the raw materials inside the emulsification tank. The emulsified raw materials enter the collecting tank at the bottom along with the flow state of the raw materials inside the entire emulsification component, and are finally transported to the quantitative feeding tank again through the connecting pipe.

[0019] Furthermore, the quantitative pressing mechanism operates in conjunction with the screw through the central threaded sleeve, and the convex strips on both sides are embedded in the lifting grooves on the inner wall of the quantitative feeding tank. The screw drives the entire quantitative pressing mechanism to move down and up through its own forward and reverse rotation, and the movable disk part inside the quantitative pressing mechanism moves to the position of the first magnetic strip and the second magnetic strip, and controls the rotation of the first magnetic strip through the adsorption effect, thereby driving the entire movable disk to rotate at a small angle, and controls the first through hole and the second through hole to be aligned or staggered, ensuring that the first through hole and the second through hole can reach a staggered state only when the quantitative pressing mechanism descends.

[0020] Furthermore, in step S5 , the viscosity is controlled at 4000±500 cps, and volatile solvent is added until the solid content reaches 50±2%.

[0021] A cooking-resistant polypropylene ink prepared by the above-mentioned manufacturing process comprises the following components: chlorinated polypropylene, a mixed solvent, a titanate coupling agent, a high-temperature phthalocyanine blue pigment, a nano-silica dispersant, an epoxy plasticizer, a silicone defoamer, and a volatile solvent, wherein the volatile solvent is ethyl acetate, and the mixed solvent comprises ethyl acetate and cyclohexanone.

[0022] Beneficial effects of the present invention:

[0023] 1. The present invention combines vacuum high-speed shear emulsification with multi-stage grinding, which reduces the energy consumption required for dispersion and improves the control accuracy of fineness. The emulsification equipment as a whole can realize large-scale automatic emulsification processing, and the specification requirements for the stirring power equipment used for emulsification are reduced.

[0024] 2. In the manufacturing process of the anti-boiling polypropylene ink, a quantitative feeding tank is used to push the injected raw materials, so that the solution can be emulsified inside the shear emulsification component in a flowing state, ensuring that the emulsification efficiency of all raw materials remains consistent and uniform. In addition, a periodic quantitative feeding process can be achieved with only a single power device, which improves the utilization rate of the power device. In combination with the quantitative pressing mechanism, a fast and automated reciprocating lifting and feeding process can be achieved.

[0025] 3. This process for manufacturing retort-resistant polypropylene inks utilizes a drive mechanism to link the metered feed tube with the shear emulsification component. This ensures a positive correlation between feed speed and emulsification efficiency. This means that while accelerating feed, the shear emulsification speed is also increased, ensuring consistent emulsification of the fluidized material. Furthermore, the addition of a defoaming component provides additional, efficient defoaming, further shortening the overall emulsification cycle, improving emulsification quality, and ensuring a more uniform and thorough defoaming process. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a flow chart of a process for manufacturing a boiling-resistant polypropylene ink according to the present invention;

[0027] Figure 2 This is a structural diagram of an emulsifying device used in a process for manufacturing a boiling-resistant polypropylene ink according to the present invention;

[0028] Figure 3 Schematic diagram of the connection between the shear emulsification component and the defoaming component of the present invention;

[0029] Figure 4 This is a diagram showing the internal structure of the quantitative feeding tank of the present invention;

[0030] Figure 5 This is an exploded view of the quantitative pressing mechanism of the present invention;

[0031] Figure 6 It is a cross-sectional view of the quantitative feeding tank of the present invention;

[0032] Figure 7 This is a disassembled diagram of the shear emulsification component of the present invention;

[0033] Figure 8 is a cross-sectional view of the defoaming component of the present invention;

[0034] Figure: 1. Quantitative feeding tank; 2. Driving mechanism; 3. Shear emulsification component; 4. Feeding pipe; 5. Defoaming component; 6. First solenoid valve; 7. Diversion pipe; 8. Second solenoid valve; 9. Emulsification tank; 10. Collection tank; 11. Connecting pipe; 12. Vacuum pipe; 13. Support frame; 14. Top plate; 15. Motor; 16. Screw; 17. Driving gear; 18. Quantitative pressing mechanism; 19. Fixed plate ; 20. First through hole; 21. Threaded sleeve; 22. Raised strip; 23. Interlayer; 24. Movable disk; 25. Second through hole; 26. First magnetic strip; 27. Second magnetic strip; 28. Lifting slot; 29. ​​Third magnetic strip; 30. Toothed belt; 31. Driven gear; 32. Driven shaft; 33. Shear frame; 34. Defoaming tank; 35. Partition; 36. Diversion layer; 37. Docking sleeve; 38. Exhaust hole. DETAILED DESCRIPTION

[0035] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0036] See also Figures 1 to 8 The present invention provides the following technical solution: a process for manufacturing a cooking-resistant polypropylene ink, which includes the following steps:

[0037] S1. Put chlorinated polypropylene and a mixed solvent into a reactor, heat to 60°C and dissolve at a constant temperature. The concentration of chlorinated polypropylene is chlorinated polypropylene. The mixed solvent includes ethyl acetate and cyclohexanone, and the ratio of ethyl acetate to cyclohexanone is 6:4. The constant temperature dissolution time is 2 hours.

[0038] S2. Add 0.5% titanate coupling agent and stir at low speed for 30 minutes at a stirring speed of 400 rpm;

[0039] S3. Add high-temperature phthalocyanine blue pigment and nano-silica dispersant into the emulsifying equipment, set the operating speed of the driving mechanism 2 in the emulsifying equipment, inject the high-temperature phthalocyanine blue pigment and nano-silica dispersant into the interior of the quantitative delivery tank first, start the driving mechanism 2 at the top, and after the driving mechanism 2 is running, the motor 15 drives the screw rod 16 to rotate, and the screw rod 16 cooperates with the threaded sleeve 21 to drive the entire quantitative pressing mechanism 18 to perform lifting movement, and the quantitative pressing mechanism 18 pushes the injected raw materials toward the bottom until they are delivered to the interior of the defoaming component 5.

[0040] The driving equipment used in this process includes a motor 15, a screw rod 16, a driving gear 17, a driven gear 31 and a toothed belt 30. A support frame 13 is welded to one side of the top of the quantitative feeding tank: 1, and a top plate 14 is welded to the top of the support frame 13. The outer shell of the motor 15 is screwed to the surface of the top plate 14. The output end of the motor 15 is inserted with a screw rod 16, and the surface of the screw rod 16 is keyed to the driving gear 17. The surface of the screw rod 16 is also sleeved with a quantitative pressing mechanism 18. The side of the driving gear 17 is sleeved with a toothed belt 30, and the other end of the toothed belt 30 is inserted with a driven gear 31. The bottom of the driven gear 31 is installed with a driven shaft 32, and the end of the driven shaft 32 is installed with a shear frame 33;

[0041] S4, start the emulsification equipment, high-speed shear emulsification for 30 minutes, and preliminarily disperse the slurry until the fineness meets the standard. During this process, start the external vacuum equipment to periodically vacuum the air inside the defoaming component 5. The raw materials are transported from the feeding pipe 4 at the bottom to the inside of the defoaming component 5 and defoamed in the defoaming component 5. The whole defoaming process includes the following:

[0042] During the downward movement of the quantitative pressing mechanism 18, the first solenoid valve 6 and the second solenoid valve 8 remain in the open state, so that the part of the raw material that has been defoamed inside the defoaming component 5 is pushed along with the raw material injected from the feeding pipe 4, and flows along the diversion pipe 7 to the emulsification tank 9 at the end to undergo a high-speed shear emulsification process.

[0043] In this embodiment, the defoaming component 5 used includes a defoaming tank 34, a partition 35 and a vacuum pipe 12. The vacuum pipe 12 is embedded in the interior of the defoaming tank 34, and the end of the vacuum pipe 12 is integrally formed with a plurality of docking sleeves 37. Each docking sleeve 37 has an exhaust hole 38 on its side. A plurality of partitions 35 are installed inside the defoaming tank 34, and a diversion layer 36 is provided between adjacent partitions 35. Each diversion layer 36 is connected to the end of the feeding pipe 4, and a first solenoid valve 6 is installed on the surface of the feeding pipe 4. A diversion pipe 7 is connected to the other side of the defoaming tank 34, and a second solenoid valve 8 is installed at one end of the diversion pipe 7.

[0044] The quantitative pressing mechanism 18 moves upward as the driving mechanism 2 rotates in the opposite direction, and synchronously controls the first solenoid valve 6 and the second solenoid valve 8 to be closed, so that a closed cavity is formed inside the defoaming component 5. Synchronously, a vacuum pipe 12 connected to a vacuum device is used to form an approximately negative pressure state in the space inside the defoaming tank 34. The injected raw materials are dispersed inside the defoaming tank 34 through multiple partitions 35, and the diversion layers 36 between adjacent partitions 35 correspond to independent docking sleeves 37 respectively.

[0045] In this embodiment, the docking sleeve 37 extracts the air inside each corresponding diversion layer 36 through the exhaust holes 38 opened on the surface, so that an effective negative pressure state is formed inside each diversion layer 36. The driving mechanism 2 at the end rotates forward again and starts to push the raw materials inside the quantitative feeding tank: 1. After the raw materials inside the defoaming component 5 are defoamed, they are continuously transported to the inside of the shear emulsification component 3.

[0046] In this embodiment, after the driving mechanism 2 is started, the motor 15 controls the screw rod 16 to rotate, and the surface of the screw rod 16 drives the driving gear 17 to rotate. The driving gear 17 is linked to the driven gear 31 at the other end through the toothed belt 30 set on the side. An acceleration gear set structure is formed between the driven gear 31 and the driving gear 17, so that the driven shaft 32 part drives the shear frame 33 at the end to operate at high speed, thereby achieving the purpose of high-speed shear emulsification of the raw material part inside the emulsification tank 9. The emulsified raw materials enter the collecting tank 10 at the bottom as the raw materials flow inside the entire emulsification component, and are finally transported to the quantitative feeding tank: 1 again through the connecting pipe 11.

[0047] The shear emulsification assembly 3 used in this embodiment includes an emulsification tank 9, a collecting tank 10 and a connecting pipe 11. The top side of the emulsification tank 9 is connected to a portion of the diversion pipe 7. The collecting tank 10 is installed at the bottom end of the emulsification tank 9. The connecting pipe 11 is connected to the side of the collecting tank 10. The shear frame 33 is installed inside the emulsification tank 9 and is used to perform high-speed shear emulsification treatment on the raw materials transported from the defoaming tank 34.

[0048] In this embodiment, the quantitative device used includes a fixed disk 19, a movable disk 24 and a first magnetic strip 26. An interlayer 23 is provided in the middle of the fixed disk 19, and convex strips 22 are integrally formed on both sides of the fixed disk 19. The movable disk 24 is inserted into the interior of the interlayer 23, and the first magnetic strip 26 is embedded at the edge of the movable disk 24. In this embodiment, the number of the first magnetic strips 26 is four, and a lifting groove 28 is provided on the inner wall of the quantitative feeding tank: 1, and the quantitative pressing mechanism 18 is embedded in the interior of the lifting groove 28 through the convex strips 22 on the side.

[0049] The quantitative pressing mechanism 18 is operated by cooperating with the screw rod 16 through the threaded sleeve 21 in the center, and the convex strips 22 on both sides are embedded in the lifting groove 28 on the inner wall of the quantitative feeding tank: 1. The screw rod 16 drives the entire quantitative pressing mechanism 18 to move down and up by rotating in the forward and reverse directions. After the movable disk 24 part inside the quantitative pressing mechanism 18 moves to the position of the first magnetic strip 26 and the second magnetic strip 27, the first magnetic strip 26 is controlled to rotate by adsorption, thereby driving the entire movable disk 24 to rotate at a small angle, and controlling the first through hole 20 and the second through hole 25 to be aligned or staggered, ensuring that the first through hole 20 and the second through hole 25 can reach a staggered state only when the quantitative pressing mechanism 18 is descending;

[0050] S5. Remove microbubbles and adjust the solvent volatilization gradient to control the viscosity at 4000±500cps, and add volatile solvent until the solid content reaches 50±2%;

[0051] S6. After filtration, fill into sealed metal barrels and fill with nitrogen for protection.

[0052] This embodiment also provides a cooking-resistant polypropylene ink produced by the above-mentioned manufacturing process. The ingredients of the cooking-resistant polypropylene ink include: chlorinated polypropylene, a mixed solvent, a titanate coupling agent, a high-temperature phthalocyanine blue pigment, a nano-silica dispersant, an epoxy plasticizer, a silicone defoaming agent and a volatile solvent. The volatile solvent is ethyl acetate, and the mixed solvent includes ethyl acetate and cyclohexanone.

[0053] Specifically, the concentrations of the above materials provided in this embodiment are: 30% chlorinated polypropylene, 0.5% titanate coupling agent, 20% high-temperature phthalocyanine blue pigment, 1% nano-silica dispersant, 1% epoxy plasticizer, and 0.5% silicone defoamer.

[0054] The basic principles, main features and advantages of the present invention are shown and described above. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention.

[0055] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A process for manufacturing a boiling-resistant polypropylene ink, characterized in that: The manufacturing process includes the following steps: S1. Add chlorinated polypropylene and mixed solvent into the reactor and heat to 60°C to dissolve; S2. Add 0.5% titanate coupling agent and stir at low speed for 30 minutes; S3, adding high-temperature phthalocyanine blue pigment and nano-silica dispersant into the emulsification equipment, and setting the operating speed of the driving mechanism in the emulsification equipment; S4. Start the emulsification equipment and perform high-speed shear emulsification for 30 minutes to initially disperse the slurry until the slurry fineness meets the standard. During this process, start the external vacuum equipment to periodically vacuum the air inside the defoaming component; S5, removing microbubbles and adjusting the solvent volatilization gradient; S6. After filtration, fill into sealed metal barrels and fill with nitrogen for protection.

2. The process for producing a boiling-resistant polypropylene ink according to claim 1, wherein: In step S1, the concentration of chlorinated polypropylene is chlorinated polypropylene, the mixed solvent includes ethyl acetate and cyclohexanone, and the ratio of ethyl acetate to cyclohexanone is 6:4, and the constant temperature dissolution time is 2 hours; the stirring speed in step S2 is 400 rpm.

3. The process for producing a boiling-resistant polypropylene ink according to claim 1, wherein: In step S3, the high-temperature phthalocyanine blue pigment and nano-silica dispersant are first injected into the interior of the quantitative delivery tank, and the driving mechanism at the top is started. After the driving mechanism is running, the motor drives the screw to rotate, and the screw cooperates with the threaded sleeve to drive the entire quantitative pressing mechanism to move up and down. The quantitative pressing mechanism pushes the injected raw materials toward the bottom until they are delivered to the interior of the defoaming component.

4. The process for producing a boiling-resistant polypropylene ink according to claim 2, wherein: In S4, the raw material is transported from the feeding pipe at the bottom to the interior of the defoaming component and defoamed in the defoaming component. The entire defoaming process includes the following: During the downward movement of the quantitative pressing mechanism, the first solenoid valve and the second solenoid valve remain in the open state, so that the part of the raw material that has been defoamed inside the defoaming component is pushed along with the raw material injected into the feeding pipe, and flows along the diversion pipe to the emulsification tank at the end to undergo a high-speed shear emulsification process.

5. The process for producing a boiling-resistant polypropylene ink according to claim 4, characterized in that: When the quantitative pressing mechanism moves upward as the driving mechanism rotates in the opposite direction, the first solenoid valve and the second solenoid valve are synchronously controlled to be closed, so that a closed cavity is formed inside the defoaming component. Synchronously, a vacuum pipe connected to a vacuum device is used to form an approximately negative pressure state in the space inside the defoaming tank. The injected raw materials are dispersed inside the defoaming tank through multiple partitions, and the diversion layers between adjacent partitions correspond to independent docking sleeves respectively.

6. The process for producing a boiling-resistant polypropylene ink according to claim 5, characterized in that: The docking sleeve extracts the air from each corresponding diversion layer through the exhaust holes opened on the surface, so that an effective negative pressure state is formed inside each diversion layer. The driving mechanism at the end rotates forward again and starts to push the raw materials inside the quantitative feeding tank. After the raw materials inside the defoaming component are defoamed, they are continuously transported to the inside of the shear emulsification component.

7. The process for producing a boiling-resistant polypropylene ink according to claim 6, wherein: After the driving mechanism is started, the motor controls the rotation of the screw, and the surface of the screw drives the driving gear to rotate. The driving gear is linked to the driven gear at the other end through the toothed belt set on the side. An acceleration gear set structure is formed between the driven gear and the driving gear, so that the driven shaft part drives the shear frame at the end to operate at high speed, so as to achieve the purpose of high-speed shearing and emulsification of the raw materials inside the emulsification tank. The emulsified raw materials flow into the collection tank at the bottom along with the flow state of the raw materials inside the entire emulsification component, and are finally transported to the quantitative feeding tank again through the connecting pipe.

8. The process for producing a boiling-resistant polypropylene ink according to claim 3, wherein: The quantitative pressing mechanism is operated by cooperating with the screw through the threaded sleeve in the center, and the convex strips on both sides are embedded in the lifting grooves on the inner wall of the quantitative feeding tank. The screw drives the entire quantitative pressing mechanism to move down and up through its own forward and reverse rotation, and the movable disk part inside the quantitative pressing mechanism moves to the position of the first magnetic strip and the second magnetic strip, and controls the rotation of the first magnetic strip through the adsorption effect, thereby driving the entire movable disk to rotate at a small angle, and controls the first through hole and the second through hole to be aligned or staggered, ensuring that the first through hole and the second through hole can reach a staggered state only when the quantitative pressing mechanism descends.

9. The process for producing a boiling-resistant polypropylene ink according to claim 1, wherein: In step S5 , the viscosity is controlled at 4000±500 cps, and volatile solvent is added until the solid content reaches 50±2%.

10. A boiling-resistant polypropylene ink produced by the manufacturing process of claim 1, characterized in that: The components of the cooking-resistant polypropylene ink include: chlorinated polypropylene, a mixed solvent, a titanate coupling agent, a high-temperature phthalocyanine blue pigment, a nano-silicon dioxide dispersant, an epoxy plasticizer, an organic silicon defoamer and a volatile solvent. The volatile solvent is ethyl acetate, and the mixed solvent includes ethyl acetate and cyclohexanone.

Images