CN111518435A - All-season universal water transfer seal oil and preparation method thereof - Google Patents
All-season universal water transfer seal oil and preparation method thereof Download PDFInfo
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- CN111518435A CN111518435A CN202010567282.9A CN202010567282A CN111518435A CN 111518435 A CN111518435 A CN 111518435A CN 202010567282 A CN202010567282 A CN 202010567282A CN 111518435 A CN111518435 A CN 111518435A
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D11/00—Inks
- C09D11/02—Printing inks
- C09D11/10—Printing inks based on artificial resins
- C09D11/106—Printing inks based on artificial resins containing macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C09D11/107—Printing inks based on artificial resins containing macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds from unsaturated acids or derivatives thereof
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D11/00—Inks
- C09D11/02—Printing inks
- C09D11/03—Printing inks characterised by features other than the chemical nature of the binder
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Abstract
The invention discloses a water transfer printing seal oil for four seasons, which comprises the following raw material components in parts by mass: 40-50 parts of thermoplastic acrylic resin, 0.1-0.5 part of defoaming agent, 0.1-0.5 part of thickening thixotropic agent, 30-40 parts of solvent and 3-4 parts of high-molecular polyester plasticizer. The four-season universal water transfer printing cover oil is stable in mechanical property, tension resistance and elongation are not greatly fluctuated along with the change of the placing time and the temperature, the low-temperature brittleness of the cover oil is improved, the using effect under different environmental temperatures is effectively improved, and the practicability is high.
Description
Technical Field
The invention relates to the technical field of printing ink, in particular to water transfer printing seal oil universal for four seasons and a preparation method thereof.
Background
The water transfer printing cover oil is mainly used for fixing the pattern on the water transfer printing paper so as to facilitate the pattern transfer to the ceramic. At present, most of the water transfer printing cover oil on the market consists of thermoplastic acrylic resin, solvent and auxiliary agent. Since the thermoplastic acrylic resin is sensitive to temperature changes, and tends to become too soft when the ambient temperature for use or storage is too high and brittle when the ambient temperature for use or storage is too low, a certain amount of high boiling point solvent is generally added to the water transfer cover oil to adjust the flexibility of the water transfer cover oil along with seasonal changes, but the high boiling point solvent is easy to migrate and volatilize, so that the water transfer cover oil becomes unstable, and the instability brings great inconvenience to production and use.
Disclosure of Invention
Aiming at the problems in the prior art, the invention aims to provide the water transfer seal oil which is universal for four seasons, has stable mechanical property, does not have large fluctuation of tensile force and elongation along with the change of placing time and temperature, improves the low-temperature brittleness of the seal oil, effectively improves the use effect under different environmental temperatures, and has strong practicability.
The invention also aims to provide a preparation method of the four-season universal water transfer seal oil, which is simple, and the four-season universal water transfer seal oil prepared by the preparation method has good flexibility, strong practicability and good temperature adaptability, and the mechanical property of the four-season universal water transfer seal oil can not obviously change along with the change of temperature.
In order to achieve the purpose, the invention adopts the following technical scheme:
the four-season universal water transfer seal oil comprises the following raw material components in parts by mass:
the high-molecular polyester plasticizer comprises poly adipic acid-1, 2-propylene glycol ester.
Preferably, the molecular weight of the high molecular polyester plasticizer is 2500-3500.
Preferably, the glass transition temperature of the thermoplastic acrylic resin is 30-50 ℃.
Preferably, the defoamer comprises a silicone defoamer.
Preferably, the thickening thixotropic agent comprises one or more of fatty acid amide thixotropic agent, hydrogenated castor oil amide thixotropic agent and hydrogenated castor oil thixotropic agent.
Preferably, the solvent comprises a mixture of trimethylbenzene and tetramethylbenzene.
The preparation method of the four-season universal water transfer seal oil comprises the following steps:
(1) adding a defoaming agent into a solvent, and stirring at a high speed for 10-20 min;
(2) slowly adding thermoplastic acrylic resin into the solution obtained in the step (1), and stirring at a high speed for 40-60 min;
(3) slowly adding a thickening thixotropic agent into the solution obtained in the step (2), and stirring at a high speed for 20-40 min;
(4) cooling water is introduced, the temperature of the solution obtained in the step (3) is reduced to 40-45 ℃, high-speed stirring is kept, and the high-molecular polyester plasticizer is slowly added, wherein the stirring time is 50-70 min;
(5) and (4) cooling the temperature of the solution obtained in the step (4) to 25 ℃, and keeping the temperature for 50-70 min to obtain the four-season universal water transfer printing surface oil.
Preferably, in the step (1), the step (2), the step (3) and the step (4), the stirring speed of the high-speed stirring is 1500-2000 r/min.
Compared with the prior art, the invention has the following beneficial effects:
according to the invention, the high-molecular polyester plasticizer is added into the system, and is not easy to volatilize and migrate, so that the performance of the four-season universal water transfer seal oil has the characteristic of not changing along with the change of environmental temperature, the same formula can be used in spring, summer, autumn and winter in the production process, the service performance is stable, the mechanical property of the four-season universal water transfer seal oil is stable, the tension resistance and the elongation rate do not fluctuate greatly along with the change of the placing time and the temperature, the low-temperature brittleness of the seal oil is improved, the condition that the formula needs to be adjusted due to the use in different seasons or in regions with large temperature difference is avoided, the production cost is greatly reduced, the use effect under different environmental temperatures is effectively improved, and the practicability is strong.
Detailed Description
The four-season universal water transfer seal oil comprises the following raw material components in parts by mass:
the high-molecular polyester plasticizer comprises poly adipic acid-1, 2-propylene glycol ester.
The high-molecular polyester plasticizer is added into a system, is not easy to volatilize and migrate, comprises poly adipic acid-1, 2-propylene glycol ester, has good compatibility with system raw materials, low volatility and small migration, has good durability and low temperature resistance, greatly improves the low temperature brittleness of the four-season universal water transfer seal oil, enables the performance of the four-season universal water transfer seal oil to have the characteristic of no change along with the change of environmental temperature, can be used in spring, summer, autumn and winter in the production process, has stable service performance, has stable mechanical property, does not have large fluctuation of tensile strength and elongation along with the change of standing time and temperature, improves the low temperature brittleness of the seal oil, the condition that the formula needs to be adjusted due to the fact that the novel environment-friendly temperature-adjustable water dispenser is used in different seasons or in regions with large temperature difference is avoided, production cost is greatly reduced, the using effect under different environment temperatures is effectively improved, and the practicability is high.
If the addition amount of the high molecular polyester plasticizer is too small, the effect of improving the low-temperature brittleness of the four-season water transfer seal oil cannot be achieved, and if the addition amount of the high molecular polyester plasticizer is too large, the mechanical property of the four-season water transfer seal oil is directly influenced, so that the tensile strength is poor, the elongation is increased, and the surface adhesion is easy to occur during use.
Preferably, the molecular weight of the high molecular polyester plasticizer is 2500-3500.
If the molecular weight of the high molecular polyester plasticizer is too low, the high molecular polyester plasticizer is easy to migrate out of the system, so that the effect of improving the low-temperature brittleness of the four-season general water transfer seal oil is weakened, and if the molecular weight of the high molecular polyester plasticizer is too high, the viscosity of the system is easy to increase, so that a coating is not easy to dry when the four-season general water transfer seal oil is coated, the surface is sticky, and the using effect of the four-season general water transfer seal oil is influenced.
Preferably, the glass transition temperature of the thermoplastic acrylic resin is 30-50 ℃.
If the glass transition temperature of the thermoplastic acrylic resin is too low, the four-season general water transfer seal oil is easy to be adhered at high temperature, the viscosity of the four-season general water transfer seal oil is increased at higher temperature, and if the glass transition temperature of the thermoplastic acrylic resin is too high, the brittleness of the four-season general water transfer seal oil is increased at lower temperature, so that the using effect of the four-season general water transfer seal oil at different temperatures is influenced.
Preferably, the defoamer comprises a silicone defoamer.
By adding the defoaming agent, the condition that the mixing uniformity is influenced by a large amount of bubbles generated by mixing raw materials in the process of mixing and preparing the raw materials of the four-season general water transfer seal oil is avoided, and the defoaming agent can eliminate the bubbles generated in the printing process when the four-season general water transfer seal oil is used, so that the printing uniformity is effectively improved.
Preferably, the thickening thixotropic agent comprises one or more of fatty acid amide thixotropic agent, hydrogenated castor oil amide thixotropic agent and hydrogenated castor oil thixotropic agent.
By adding the thickening thixotropic agent, the flowability of the four-season universal water transfer seal oil can be adjusted, and the thickening effect is achieved, so that the four-season universal water transfer seal oil can obtain excellent thixotropic performance, is endowed with anti-settling and anti-sagging performance, and the flowability of the four-season universal water transfer seal oil in different seasons is improved.
Preferably, the solvent comprises a mixture of trimethylbenzene and tetramethylbenzene.
The mixture of the trimethylbenzene and the tetramethylbenzene is used as a solvent, so that the dissolving performance of the system raw materials is good, other raw materials can be uniformly mixed and dispersed better, and the using effect of the water transfer printing sealing oil for the four seasons is ensured.
The preparation method of the four-season universal water transfer seal oil comprises the following steps:
(1) adding a defoaming agent into a solvent, and stirring at a high speed for 10-20 min;
(2) slowly adding thermoplastic acrylic resin into the solution obtained in the step (1), and stirring at a high speed for 40-60 min;
(3) slowly adding a thickening thixotropic agent into the solution obtained in the step (2), and stirring at a high speed for 20-40 min;
(4) cooling water is introduced, the temperature of the solution obtained in the step (3) is reduced to 40-45 ℃, high-speed stirring is kept, and the high-molecular polyester plasticizer is slowly added, wherein the stirring time is 50-70 min;
(5) and (4) cooling the temperature of the solution obtained in the step (4) to 25 ℃, and keeping the temperature for 50-70 min to obtain the four-season universal water transfer printing surface oil.
The four-season universal water transfer seal oil prepared by the preparation method is simple in preparation method, good in flexibility, strong in practicability and good in temperature adaptability, and the mechanical property of the four-season universal water transfer seal oil prepared by the preparation method does not change obviously along with the change of temperature;
in the step (4), the temperature of the solution when the high molecular polyester plasticizer is slowly added is controlled to be 40-45 ℃, if the temperature of the solution is too low, the high molecular polyester plasticizer is not easily combined with other raw material components in a system, the effect of improving the low-temperature brittleness of the universal water transfer seal oil for four seasons is poor, and if the temperature of the solution is too high, the high molecular polyester plasticizer is easily subjected to local flocculation when the solution is added, so that the service performance of the universal water transfer seal oil for four seasons is affected. In addition, the high-molecular polyester plasticizer is added at last, so that irreversible aggregation with other raw material components is prevented, and the service performance of the four-season universal water transfer printing surface sealing oil is influenced.
Preferably, in the step (1), the step (2), the step (3) and the step (4), the stirring speed of the high-speed stirring is 1500-2000 r/min.
If the stirring speed of the high-speed stirring is too low, the uniform dispersion of raw material components in the preparation process is not facilitated, the combination of the high-molecular polyester plasticizer and other raw material components is not facilitated, and if the stirring speed of the high-speed stirring is too high, the stability of a system is easily damaged, and the using effect of the water transfer seal oil for four seasons is influenced.
The technical solution of the present invention is further explained by the following embodiments.
The following examples and comparative examples used the starting materials:
the thermoplastic acrylic resin is a conventional raw material sold in the market;
defoaming agent: commercially available silicone defoamers;
thickening thixotropic agent: commercially available thixotropic agents of the hydrogenated castor oil type;
solvent: a mixture of trimethylbenzene and tetramethylbenzene;
high-molecular polyester plasticizer: poly (1, 2-propylene glycol adipate) (molecular weight 3000);
example 1
A preparation method of water transfer seal oil for four seasons comprises the following steps:
(1) adding 0.3 part of defoaming agent into 40 parts of solvent according to the mass parts, and stirring at a high speed of 1600r/min for 10 min;
(2) slowly adding 50 parts of thermoplastic acrylic resin (with the glass transition temperature of 48 ℃) into the solution in the step (1), and stirring at a high speed of 1600r/min for 50 min;
(3) slowly adding 0.3 part of thickening thixotropic agent into the solution in the step (2), and stirring at a high speed of 1600r/min for 30 min;
(4) cooling water is introduced, the temperature of the solution in the step (3) is reduced to 42 ℃, high-speed stirring is kept, the stirring speed is 1600r/min, 3 parts of high-molecular polyester plasticizer is slowly added, and the stirring time is 60 min;
(5) and (4) cooling the solution obtained in the step (4) to 25 ℃, and keeping the temperature for 60min to obtain the four-season universal water transfer printing surface oil.
Example 2
A preparation method of water transfer seal oil for four seasons comprises the following steps:
(1) adding 0.2 part of defoaming agent into 30 parts of solvent by mass, and stirring at a high speed of 1500r/min for 10 min;
(2) slowly adding 50 parts of thermoplastic acrylic resin (with the glass transition temperature of 48 ℃) into the solution in the step (1), and stirring at high speed of 1500r/min for 50 min;
(3) slowly adding 0.2 part of thickening thixotropic agent into the solution in the step (2), and stirring at a high speed of 1500r/min for 30 min;
(4) cooling water is introduced, the temperature of the solution in the step (3) is reduced to 40 ℃, high-speed stirring is kept, the stirring speed is 1500r/min, 4 parts of high-molecular polyester plasticizer is slowly added, and the stirring time is 60 min;
(5) and (4) cooling the solution obtained in the step (4) to 25 ℃, and keeping the temperature for 60min to obtain the four-season universal water transfer printing surface oil.
Example 3
A preparation method of water transfer seal oil for four seasons comprises the following steps:
(1) adding 0.5 part of defoaming agent into 30 parts of solvent by mass, and stirring at a high speed of 1800r/min for 10 min;
(2) slowly adding 45 parts of thermoplastic acrylic resin (the glass transition temperature is 32 ℃) into the solution in the step (1), and stirring at a high speed of 1800r/min for 50 min;
(3) slowly adding 0.5 part of thickening thixotropic agent into the solution obtained in the step (2), and stirring at a high speed of 1800r/min for 30 min;
(4) cooling water is introduced, the temperature of the solution in the step (3) is reduced to 45 ℃, high-speed stirring is kept, the stirring speed is 1800r/min, 3 parts of high-molecular polyester plasticizer is slowly added, and the stirring time is 60 min;
(5) and (4) cooling the solution obtained in the step (4) to 25 ℃, and keeping the temperature for 60min to obtain the four-season universal water transfer printing surface oil.
Example 4
A preparation method of water transfer seal oil for four seasons comprises the following steps:
(1) adding 0.3 part of defoaming agent into 40 parts of solvent according to the mass parts, and stirring at a high speed of 1600r/min for 10 min;
(2) slowly adding 50 parts of thermoplastic acrylic resin (the glass transition temperature is 32 ℃) into the solution in the step (1), and stirring at a high speed of 1600r/min for 50 min;
(3) slowly adding 0.3 part of thickening thixotropic agent into the solution in the step (2), and stirring at a high speed of 1600r/min for 30 min;
(4) cooling water is introduced, the temperature of the solution in the step (3) is reduced to 42 ℃, high-speed stirring is kept, the stirring speed is 1600r/min, 3 parts of high-molecular polyester plasticizer (poly adipic acid-1, 2-propylene glycol ester, the molecular weight is 600) is slowly added, and the stirring time is 60 min;
(5) and (4) cooling the solution obtained in the step (4) to 25 ℃, and keeping the temperature for 60min to obtain the four-season universal water transfer printing surface oil.
Example 5
A preparation method of water transfer seal oil for four seasons comprises the following steps:
(1) adding 0.3 part of defoaming agent into 40 parts of solvent according to the mass parts, and stirring at a high speed of 1600r/min for 10 min;
(2) slowly adding 50 parts of thermoplastic acrylic resin (the glass transition temperature is 32 ℃) into the solution in the step (1), and stirring at a high speed of 1600r/min for 50 min;
(3) slowly adding 0.3 part of thickening thixotropic agent into the solution in the step (2), and stirring at a high speed of 1600r/min for 30 min;
(4) cooling water is introduced, the temperature of the solution in the step (3) is reduced to 42 ℃, high-speed stirring is kept, the stirring speed is 1600r/min, 3 parts of high-molecular polyester plasticizer (poly adipic acid-1, 2-propylene glycol ester, the molecular weight is 4000) is slowly added, and the stirring time is 60 min;
(5) and (4) cooling the solution obtained in the step (4) to 25 ℃, and keeping the temperature for 60min to obtain the four-season universal water transfer printing surface oil.
Example 6
A preparation method of water transfer seal oil for four seasons comprises the following steps:
(1) adding 0.3 part of defoaming agent into 40 parts of solvent according to the mass parts, and stirring at a high speed of 1600r/min for 10 min;
(2) slowly adding 50 parts of thermoplastic acrylic resin (the glass transition temperature is 20 ℃) into the solution in the step (1), and stirring at a high speed of 1600r/min for 50 min;
(3) slowly adding 0.3 part of thickening thixotropic agent into the solution in the step (2), and stirring at a high speed of 1600r/min for 30 min;
(4) cooling water is introduced, the temperature of the solution in the step (3) is reduced to 42 ℃, high-speed stirring is kept, the stirring speed is 1600r/min, 3 parts of high-molecular polyester plasticizer is slowly added, and the stirring time is 60 min;
(5) and (4) cooling the solution obtained in the step (4) to 25 ℃, and keeping the temperature for 60min to obtain the four-season universal water transfer printing surface oil.
Example 7
A preparation method of water transfer seal oil for four seasons comprises the following steps:
(1) adding 0.3 part of defoaming agent into 40 parts of solvent according to the mass parts, and stirring at a high speed of 1600r/min for 10 min;
(2) slowly adding 50 parts of thermoplastic acrylic resin (the glass transition temperature is 65 ℃) into the solution in the step (1), and stirring at a high speed of 1600r/min for 50 min;
(3) slowly adding 0.3 part of thickening thixotropic agent into the solution in the step (2), and stirring at a high speed of 1600r/min for 30 min;
(4) cooling water is introduced, the temperature of the solution in the step (3) is reduced to 42 ℃, high-speed stirring is kept, the stirring speed is 1600r/min, 3 parts of high-molecular polyester plasticizer is slowly added, and the stirring time is 60 min;
(5) and (4) cooling the solution obtained in the step (4) to 25 ℃, and keeping the temperature for 60min to obtain the four-season universal water transfer printing surface oil.
Comparative example 1
Example 1 was selected for comparison, the polymeric polyester plasticizer added in this comparative example was the common plasticizer dioctyl phthalate DOP, and the formulation and preparation method of the other raw materials were the same as those in example 1, to prepare a water transfer seal oil.
Comparative example 2
Example 1 was selected for comparison, and the water transfer seal oil was prepared by using 1 part by mass of the polymer polyester plasticizer and the formulation of the remaining raw materials and the preparation method in the same manner as in example 1.
Comparative example 3
Example 1 was selected for comparison, and the water transfer seal oil was prepared in the same manner as in example 1 except that 6 parts by mass of the polymer polyester plasticizer was added in this comparative example and the formulation of the remaining raw materials and the preparation method were the same.
Comparative example 4
Example 1 was selected for comparison, and in this comparative example, cooling water was introduced in step (4), the temperature of the solution in step (3) was lowered to 50 ℃, and the formulation and preparation method of the remaining raw materials were the same as those in example 1, to obtain a water transfer seal oil.
Comparative example 5
Example 1 was selected for comparison, and in this comparative example, cooling water was introduced in step (4), the temperature of the solution in step (3) was lowered to 35 ℃, and the formulation and preparation method of the remaining raw materials were the same as those in example 1, to obtain a water transfer seal oil.
Comparative example 6
Selecting example 1 for comparison, in this comparative example, firstly adding a high molecular polyester plasticizer, a preparation method of water transfer printing seal oil, comprising the following steps:
(1) according to the mass parts, 3 parts of high-molecular polyester plasticizer and 0.3 part of defoaming agent are added into 40 parts of solvent to be stirred at a high speed, wherein the stirring speed is 1600r/min, and the stirring time is 10 min;
(2) slowly adding 50 parts of thermoplastic acrylic resin (with the glass transition temperature of 48 ℃) into the solution in the step (1), and stirring at a high speed of 1600r/min for 50 min;
(3) slowly adding 0.3 part of thickening thixotropic agent into the solution in the step (2), and stirring at a high speed of 1600r/min for 30 min;
(4) and (4) cooling the solution obtained in the step (3) to 25 ℃, and keeping the temperature for 60min to obtain the water transfer printing surface oil.
Examples 1-7 and comparative examples 1-6 performance testing:
(1) viscosity measurement
The water transfer seal oils obtained in the examples and comparative examples were subjected to a viscosity test using a rotary viscometer (model NDJ-1 rotary viscometer of Shanghai Jingui apparatus Ltd.) at a test temperature of 25 ℃.
(2) Printability test
After the water transfer seal oil was uniformly applied to 100 sheets of base paper using an 80-mesh screen of a printing machine at a printing speed of 40 sheets per minute, the recording of no ink scattering and stringiness was √ and the recording of ink scattering and stringiness was ×.
(3) Tensile and elongation test
The cover oils prepared in the respective examples and comparative examples were screen-printed on water transfer paper using an 80-mesh screen, and then dried at 60 ℃ for 1 hour to prepare a dry film, and the dry film was subjected to tensile strength and elongation tests using a computer tensile tester (model PN-TT300 of hangzhou cheng technologies ltd.).
The results of the performance tests of the examples and comparative examples are shown in table 1 below:
TABLE 1 Performance test of examples and comparative examples
TABLE 1 (CONTINUOUS) -EXAMPLES AND COMPARATIVE EXAMPLES PERFORMANCE TESTS
TABLE 1 (CONTINUOUS) -EXAMPLES AND COMPARATIVE EXAMPLES PERFORMANCE TESTS
From the test results, the water transfer printing sealing oil of the embodiments 1 to 3 has good printability, does not have large fluctuation of tensile strength and elongation along with the change of the placing time and temperature, has stable mechanical property, has the characteristic of not changing along with the change of the environmental temperature, effectively improves the using effect of the water transfer printing sealing oil under different environmental temperatures due to the addition of the high molecular polyester plasticizer in the system, and has strong practicability;
the molecular weight of the high molecular polyester plasticizer in the embodiment 4 is too low, the high molecular polyester plasticizer is easy to migrate out of the system, and the improvement effect on the low-temperature brittleness of the four-season general water transfer printing sealing oil is weakened, so that the tension resistance and the elongation rate are slightly fluctuated along with the change of the standing time and the temperature;
the water transfer printing seal oil of the embodiment 5 has poor printability, has ink scattering and wire drawing phenomena and has higher viscosity, and the molecular weight of the high molecular polyester plasticizer of the embodiment 5 is too high, so that the viscosity of the system is easily increased, the coating is not easy to dry when the water transfer printing seal oil for the four seasons is coated, the surface is sticky, and the using effect of the water transfer printing seal oil for the four seasons is influenced;
the glass transition temperature of the thermoplastic acrylic resin in example 6 is too low, so that the cover oil is easy to be adhered at high temperature, the viscosity is high, and the printability is poor, and the glass transition temperature of the thermoplastic acrylic resin in example 7 is too high, so that the brittleness of the water transfer seal oil is increased, the using effect of the water transfer seal oil for four seasons is influenced, and therefore the tensile strength and the elongation rate are slightly fluctuated along with the change of the placing time and the temperature;
comparative example 1 because the monomeric small molecular weight plasticizer dioctyl phthalate used is generally compatible with the raw materials in the system and is easy to volatilize and migrate, the elongation rate is obviously reduced along with the change of temperature and standing time, the change of tensile strength is also obvious, and the low-temperature brittleness is obvious;
comparative example 2 because the amount of the added high molecular polyester plasticizer is too small, the elongation of the prepared dry film is obviously reduced along with the change of temperature and standing time, the change of tensile strength is also obvious, and the effect of improving the low-temperature brittleness of the water transfer printing sealing oil for four seasons cannot be achieved; comparative example 3 because the addition amount of the polymer polyester plasticizer is too large, the mechanical property of the water transfer seal oil can be directly influenced, so that the tensile strength is poor, the elongation is increased, the surface adhesion is easy to occur during use, the viscosity is increased, and the printability is poor;
in the comparative example 4, when the high molecular polyester plasticizer is added, the temperature of the solution is too high, so that the high molecular polyester plasticizer is easy to cause local flocculation when the solution is added, the printability of the water transfer printing sealing oil is poor, and the service performance of the water transfer printing sealing oil is influenced; comparative example 5 when the polymer polyester plasticizer was added, the temperature of the solution was too low, the polymer polyester plasticizer was not easily combined with other raw material components in the system, the effect of improving the low temperature brittleness of the four season general water transfer seal oil became worse, the elongation of the prepared dry film decreased significantly with the temperature and the standing time, and the change of tensile strength was also significant;
in the comparative example 6, the high-molecular polyester plasticizer is added in the preparation process, and irreversible aggregation is generated between the high-molecular polyester plasticizer and other raw material components, so that the viscosity of the prepared water transfer printing seal oil is increased, the printability is poor, the temperature adaptability is poor, and the service performance of the water transfer printing seal oil is influenced.
The technical principle of the present invention is described above in connection with specific embodiments. The description is made for the purpose of illustrating the principles of the invention and should not be construed in any way as limiting the scope of the invention. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without inventive effort, which would fall within the scope of the present invention.
Claims (8)
1. The four-season universal water transfer seal oil is characterized by comprising the following raw material components in parts by mass:
the high-molecular polyester plasticizer comprises poly adipic acid-1, 2-propylene glycol ester.
2. The four-season water transfer printing cover oil according to claim 1, wherein the molecular weight of the high polymer polyester plasticizer is 2500-3500.
3. The four-season water transfer printing cover oil according to claim 1, wherein the glass transition temperature of the thermoplastic acrylic resin is 30-50 ℃.
4. The four-season water transfer printing cover oil according to claim 1, wherein the defoaming agent comprises a silicone defoaming agent.
5. The four-season water transfer seal surface oil as claimed in claim 1, wherein the thickening thixotropic agent comprises one or more of fatty acid amide thixotropic agent, hydrogenated castor oil amide thixotropic agent and hydrogenated castor oil thixotropic agent.
6. The four-season water transfer printing cover oil according to claim 1, wherein the solvent comprises a mixture of trimethylbenzene and tetramethylbenzene.
7. The preparation method of the four-season universal water transfer printing cover oil according to claim 1, characterized by comprising the following steps:
(1) adding a defoaming agent into a solvent, and stirring at a high speed for 10-20 min;
(2) slowly adding thermoplastic acrylic resin into the solution obtained in the step (1), and stirring at a high speed for 40-60 min;
(3) slowly adding a thickening thixotropic agent into the solution obtained in the step (2), and stirring at a high speed for 20-40 min;
(4) cooling water is introduced, the temperature of the solution obtained in the step (3) is reduced to 40-45 ℃, high-speed stirring is kept, and the high-molecular polyester plasticizer is slowly added, wherein the stirring time is 50-70 min;
(5) and (4) cooling the temperature of the solution obtained in the step (4) to 25 ℃, and keeping the temperature for 50-70 min to obtain the four-season universal water transfer printing surface oil.
8. The preparation method of the four-season general water transfer seal surface oil according to claim 7, wherein in the step (1), the step (2), the step (3) and the step (4), the stirring speed of high-speed stirring is 1500-2000 r/min.
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| CN202010567282.9A CN111518435B (en) | 2020-06-19 | 2020-06-19 | All-season universal water transfer seal oil and preparation method thereof |
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| CN114277611A (en) * | 2021-12-31 | 2022-04-05 | 佛山荷韵特种材料有限公司 | Special explosion-proof flower cover oil for ceramic stained paper, production process of special explosion-proof flower cover oil and ceramic stained paper |
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| CN114277611A (en) * | 2021-12-31 | 2022-04-05 | 佛山荷韵特种材料有限公司 | Special explosion-proof flower cover oil for ceramic stained paper, production process of special explosion-proof flower cover oil and ceramic stained paper |
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Denomination of invention: A universal water transfer printing cover oil for all seasons and its preparation method Effective date of registration: 20230919 Granted publication date: 20220920 Pledgee: Bank of China Limited Foshan Nanhai Xiqiao Sub-branch Pledgor: FOSHAN HEYUN SPECIALTY MATERIALS Co.,Ltd. Registration number: Y2023980057495 |
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