CN114379238A - Energy-resistant, corrosion-resistant and wear-resistant thermosensitive printing head heating substrate - Google Patents
Energy-resistant, corrosion-resistant and wear-resistant thermosensitive printing head heating substrate Download PDFInfo
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- CN114379238A CN114379238A CN202110753758.2A CN202110753758A CN114379238A CN 114379238 A CN114379238 A CN 114379238A CN 202110753758 A CN202110753758 A CN 202110753758A CN 114379238 A CN114379238 A CN 114379238A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/315—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of heat to a heat sensitive printing or impression-transfer material
- B41J2/32—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of heat to a heat sensitive printing or impression-transfer material using thermal heads
- B41J2/335—Structure of thermal heads
- B41J2/33505—Constructional details
- B41J2/33535—Substrates
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/315—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of heat to a heat sensitive printing or impression-transfer material
- B41J2/32—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of heat to a heat sensitive printing or impression-transfer material using thermal heads
- B41J2/335—Structure of thermal heads
- B41J2/33505—Constructional details
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/315—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of heat to a heat sensitive printing or impression-transfer material
- B41J2/32—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of heat to a heat sensitive printing or impression-transfer material using thermal heads
- B41J2/335—Structure of thermal heads
- B41J2/33505—Constructional details
- B41J2/3353—Protective layers
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Abstract
The invention relates to the technical field of thermal print head manufacturing, in particular to a thermal print head heating substrate which can obviously improve the energy resistance of a heating resistor in a thermal print head and effectively improve the wear resistance and corrosion resistance of the heating substrate, and is characterized in that a protective layer comprises a first protective layer covering the surface of the heating resistor, the first protective layer is a glass glaze layer with a transfer point temperature range of 600-: SiO 2249.4-56.8 mol% of Al2O313.7 mol% -26.7 mol% of CaO, 3.5 mol% -13.8 mol% of CaO, 1.5 mol% -5.9 mol% of BaO, 4.8 mol% -17.7 mol% of PbO, ZrO2The content of the ink is 1.2-5.0 mol%, and the ink has the characteristics of simple production method and low cost, can greatly reduce the damage of a heating resistor caused by high printing energy, and improve the corrosion resistance of a printing head in high-temperature and high-humidity environmentsThe corrosion resistance and the abrasion resistance under severe environment obviously improve the reliability of the product.
Description
The technical field is as follows:
the invention relates to the technical field of thermal print head manufacturing, in particular to a thermal print head heating substrate which can obviously improve the energy resistance of a heating resistor in a thermal print head and effectively improve the wear resistance and corrosion resistance of the heating substrate.
Background art:
as is well known, a thermal printhead in the prior art includes an insulating substrate, a ground glaze layer is disposed on a surface of the insulating substrate, a common electrode and an individual electrode are disposed on surfaces of the insulating substrate and the ground glaze layer, a heating resistor is disposed between the two electrodes, one end of the common electrode is connected to the heating resistor, the other end of the common electrode is used for connecting to a power supply, one end of the individual electrode is connected to the heating resistor, the other end of the individual electrode is connected to a pad, a glass glaze protective layer is disposed on surfaces of the heating resistor, the individual electrode and the common electrode, and a ceramic wear-resistant layer formed by a thin film is further disposed on a surface of the glass glaze protective layer.
In the prior art, when the printing medium sensitivity of the thermal printing head is low and the printing medium quality is poor, the heating resistor of the thermal printing head needs more Joule heat to enable the printing medium to color, and when the temperature exceeds the glass softening point or the transfer point temperature in the heating resistor due to more Joule heat, the heating resistor is easy to be damaged by resistance value increase; under the high-temperature and high-humidity environment, the metal electrode is corroded and broken due to insufficient corrosion resistance and damage of the protective layer; in addition, in the environment of poor printing medium quality, outdoor environment and the like, the wear resistance of the protective layer is insufficient, and the resistor body or the metal electrode is scratched by the medium or foreign particles, so that the product is damaged.
The invention content is as follows:
aiming at the defects and shortcomings in the prior art, the invention provides the heating substrate of the thermal printing head, which can obviously improve the energy resistance of the heating resistor in the thermal printing head and effectively improve the wear resistance and corrosion resistance of the heating substrate.
The invention is achieved by the following measures:
a heat-sensitive printing head heating substrate resistant to energy, corrosion and abrasion is provided with an insulating substrate, a ground coat layer made of amorphous glass materials is arranged on the surface of the insulating substrate, a common electrode and an individual electrode are arranged on the surface of the ground coat layer, a heating resistor body is arranged between the common electrode and the individual electrode, one end of the common electrode is connected with the heating resistor body, and the other end of the common electrode is connected with a power supply; one end of each individual electrode is connected with the heating resistor, and the other end of each individual electrode is connected with the bonding pad; the protective layer is arranged on the surfaces of the heating resistor body, the individual electrodes and the common electrode and is characterized in that the protective layer comprises a first protective layer covering the surface of the heating resistor body, and the first protective layer is a glass glaze layer with a transfer point temperature range of 600-870 ℃ or a glass glaze layer with a softening point temperature range of 700-725 ℃.
The first protective layer comprises the following components in oxide state: SiO 2249.4-56.8 mol% of Al2O313.7 mol% -26.7 mol% of CaO, 3.5 mol% -13.8 mol% of CaO, 1.5 mol% -5.9 mol% of BaO, 4.8 mol% -17.7 mol% of PbO, ZrO2The content is 1.2 mol% -5.0 mol%.
The upper side of the first protective layer in the protective layer is compounded with a second protective layer, the second protective layer adopts an insulating glass glaze layer or a conductive glass glaze layer, and further, the transfer point or the softening point of the second protective layer is lower than that of the first protective layer; further, when the second protective layer is a conductive glaze layer, the resistivity ranges from 0.01 Ω · m to 10k Ω · m.
The protective layer is also provided with a thin film ceramic wear-resistant layer positioned above the glass glaze layer, and the thin film ceramic wear-resistant protective layer consists of 2 composite thin film ceramic layers of silicon carbide, sialon or silicon nitride or any of the silicon carbide, sialon and silicon nitride; the thin film ceramic wear-resistant layer is used for contacting with an external environment and a printing medium, and the wear-resistant characteristic of the product is improved.
The invention has the advantages that the insulating glass glaze with high transfer point (more than 600 ℃) or high softening point (more than 700 ℃) is used as the first protective layer, and is partially diffused into the heating resistor body during sintering, so that the transfer point or the softening point of the glass composition in the heating resistor body is improved, the energy resistance of the heating resistor body is further improved, and the resistance value rise of the heating resistor body during high-energy printing is reduced; the high-transfer-point or high-softening-point insulating glass glaze is prepared by high-temperature melting, needs to be sintered at a higher temperature, has good chemical stability, obviously enhances the corrosion resistance of a product, and further enhances the wear resistance of a thin film ceramic wear-resistant protective layer formed by a thin film process on the surface of a glass glaze protective layer.
Description of the drawings:
FIG. 1 is a schematic structural view of embodiment 1 of the present invention.
FIG. 2 is a schematic structural diagram of embodiment 2 of the present invention.
FIG. 3 is a schematic structural diagram of embodiment 3 of the present invention.
Reference numerals: an insulating substrate 1, a ground coat layer 2, a common electrode and individual electrode 3, a heating resistor 4, a protective layer 5, a first protective layer (high-transfer-point or high-softening-point insulating glass glaze layer) 5a, a second protective layer (low-transfer-point or low-softening-point insulating glass glaze layer) 5b, a third protective layer (low-transfer-point or low-softening-point insulating glass glaze layer) 5c, and a thin-film ceramic wear-resistant protective layer 5 d.
The specific implementation mode is as follows:
the invention is further illustrated by the following figures and examples.
The invention provides an energy-resistant, corrosion-resistant and wear-resistant heating substrate for a thermal printing head, aiming at the defects and defects of the prior art, and the heating substrate comprises an insulating substrate, wherein a ground coat layer made of amorphous glass material is arranged on the surface part of the insulating substrate, a common electrode and an individual electrode are arranged on the surface of the ground coat layer, a heating resistor body is arranged between the common electrode and the individual electrode, one end of the common electrode is connected with the heating resistor body, and the other end of the common electrode is connected with a power supply; one end of each individual electrode is connected with the heating resistor body, and the other end of each individual electrode is connected with the bonding pad; the surfaces of the heating resistor body, the individual electrodes and the common electrode are provided with a composite protective layer consisting of a glass glaze layer and a ceramic wear-resistant layer formed by a thin film process, and the glass glaze protective layer at least comprises a first protective layer 5a consisting of high-transfer-point or high-softening-point insulating glass glaze; the transfer point or softening point of the glass composition constituting the first protective layer 5a is higher than the transfer point or softening point temperature of the glass composition in the heating resistor body, and the first protective layer 5a is subsequently called a high transfer point or high softening point insulating glass glaze protective layer, the transfer point of which is 600-725 ℃ or the softening point of which is 700-870 ℃.
Preferably, the insulating glass glaze with the transition point temperature of 600-725 ℃ or the softening point temperature of 700-870 ℃ has the composition of SiO in an oxide state249.4-56.8 mol% of Al2O313.7 mol% to 26.7 mol% of CaO, 3.5 mol% to 13.8 mol% of CaO, 1.5 mol% to 5.9 mol% of BaO, 4.8 mol% to 17.7 mol% of PbO, ZrO2The content is 1.2 mol% -5.0 mol%.
Preferably, the insulating glass glaze with the transition point temperature of 600-725 ℃ or the softening point temperature of 700-870 ℃ has the composition of SiO in an oxide state249.4-54.5 mol% of Al2O317.7 mol% -26.7 mol% of CaO, 3.5 mol% -10.5 mol% of CaO, 1.5 mol% -5.0 mol% of BaO, 8.5 mol% -17.7 mol% of PbO, ZrO2The content is 1.2 mol% -3.8 mol%.
Preferably, the insulating glass glaze with the transition point temperature of 600-725 ℃ or the softening point temperature of 700-870 ℃ has the composition of SiO in an oxide state2The content of Al is 52.0mol percent to 54.5mol percent2O317.7 mol% -22.5 mol% of CaO, 6.5 mol% -10.5 mol% of CaO, 2.5 mol% -5.0 mol% of BaO, 8.5 mol% -13.5 mol% of PbO, ZrO2The content is 2.5mol percent to 3.8mol percent.
Preferably, the first protective layer can be used as an insulating glass glaze protective layer independently, or can form a glass glaze protective layer together with other glass glaze protective layers; the other glass glaze protective layer is insulating glass glaze and can also be conductive glass glaze; the resistivity of the conductive glass glaze protective layer is 0.01-10K omega m.
Preferably, the transfer or softening point of the insulating glass glaze protective layer other than the first protective layer is lower than the transfer or softening point of the first protective layer composition, hereinafter referred to as low transfer or low softening point insulating glass glaze protective layer.
Preferably, a thin film ceramic wear-resistant protective layer 5d formed by a thin film process is arranged on the surface of the protective layer, and the thin film ceramic wear-resistant protective layer 5d is composed of one of silicon carbide, sialon or silicon nitride or 2 composite thin film ceramic layers of any of silicon carbide, sialon and silicon nitride.
The form of the insulating glass glaze protective layer composition according to the present invention is not usually a complex oxide or a compound, but is usually not a single oxide, and the glass composition of the present invention is conventionally labeled in terms of a single oxide, and for example, an insulating glass glaze may contain PbSiO3In the same form, single oxides are respectively marked as PbO and SiO2。
The following provides an energy-tolerant thermal head heating substrate and a method of manufacturing the same, and provides a comparative example:
wherein the meanings of the parameters mentioned in the following description are as follows:
the fired appearance: (1) measuring the surface roughness by using a surface roughness tester, measuring 10 samples of each glass glaze material, and calculating the average value of the samples; (2) observing the surface state of the glass glaze by a stereoscopic microscope: surface leveling and defects.
Tg (glass transition temperature), Ts (glass softening point temperature): the glass frits of each composition were measured by taking 10 samples using differential thermal analysis DTA and averaging the same.
STOL (energy resistance test): the resistance value change rate of the heating resistor was measured by applying 1.5 to 2 times of rated heating energy to the resistor, 192 heating resistors were measured for each glass frit protective layer sample of the composition, and the average value thereof was obtained.
And (3) corrosion resistance test: and under the conditions of fixed temperature and fixed humidity, the thermal printing head is electrified and standby in the actual working state, and the time for the insulating glass glaze protective layer to be corroded and damaged is measured.
Firstly, mixing various oxides according to a metering ratio, melting at a high temperature to prepare a glass material, and taking each sample to perform Tg and Ts measurement; and (2) crushing a proper amount of glass material to obtain glass glaze powder, adding a filler, an organic solvent and resin, and mixing to obtain the insulating glass glaze protective layer slurry with the high transfer point or the high softening point.
The contents of the various components of the insulating glass glaze composition with high transfer point or high softening point calculated by oxides are shown in the following table 1:
TABLE 1
Next, the insulating glass glaze protective layer paste prepared above was printed on the surface of the substrate on which the electrode and the ruthenium dioxide heating resistor had been prepared, and sintered to prepare a first insulating glass glaze protective layer, and a thermal head substrate was prepared, and subjected to a power resistance characteristic test and a corrosion resistance characteristic test, and the results thereof are recorded in table 2.
Table 2:
| first insulating glass glaze protective layer | Sintered surface state | STOL(％) | Corrosion resistance characteristics (Hr) |
| Sample 1 (prior art) | Smoothing | -7.5％ | 264 |
| Sample No. 2 | No luster and high roughness | -5.0％ | 24 |
| Sample No. 3 | Smoothness and gloss | -2.5％ | 168 |
| Sample No. 4 | Smoothness and gloss | -2.0％ | 192 |
| Sample No. 5 | Smoothness and gloss | -1.9％ | 192 |
| Sample No. 6 | Dull luster | -2.2％ | 144 |
| Sample 7 | Dull luster | -2.3％ | 144 |
| Sample 8 | Dull luster | -1.5％ | 48 |
In addition, selecting a sample 3-7 insulating glass glaze protective layer slurry with STOL less than-3%, printing the slurry on the surface of a substrate with a prepared electrode and a ruthenium dioxide heating resistor body, sintering to prepare a first glass glaze protective layer sample with a high transfer point or a softening point, and then forming a silicon carbide wear-resistant layer on the surface of a part of the sample by adopting a film process to prepare a thermal printing head substrate; printing and sintering second glass glaze protective layer slurry on the surface of the other part of the sample to prepare a second glass glaze protective layer, forming a silicon carbide wear-resistant layer on the surface of the second glass glaze protective layer by adopting a film process to prepare a thermal print head substrate, further carrying out energy resistance characteristic test and corrosion resistance characteristic test, and combining the high-transfer-point or high-softening-point insulating glass protective layer with other glass glaze protective layers.
TABLE 3
Example 1:
as shown in fig. 1, the energy-and corrosion-resistant heat-generating substrate for a thermal head according to the present example includes an insulating substrate 1, and a ground coat layer 2 made of an amorphous glass material provided on a surface portion of the insulating substrate 1; a common electrode and an individual electrode 3 are provided on the surface of the ground coat layer 2, a heating resistor 4 is disposed between the common electrode and the individual electrode 3 in the main printing direction as a heating element for generating joule heat, one end of the common electrode is connected to the heating resistor 4 in the sub-printing direction, and the other end thereof is connected to a power supply; one end of the individual electrode is connected with the heating resistor 4 along the sub-printing direction, in order to protect the heating substrate, a protective layer 5 is covered on the surfaces of the heating resistor 4, the common electrode and the individual electrode 3, and the protective layer 5 is composed of a first protective layer formed by insulating glass glaze 5a with the transfer point of 600 ℃ and the softening point of 700 ℃ and a silicon carbide ceramic protective layer formed by adopting a thin film process as shown in a selected sample 3 in a table 3.
The high softening point or transfer point glass glaze 5a is partially diffused into the heating resistor body during sintering, so that the glass softening point temperature of the heating resistor body is improved, and the power resistance of the heating resistor body is enhanced; the high-softening-point or transfer-point insulating glass glaze 5a has certain fluidity during sintering, good surface smoothness after sintering, few defects on the surface of the 5a, improved corrosion resistance of the product, and the silicon carbide ceramic layer strengthens the wear resistance of the thermal print head substrate, so that the thermal print head substrate with energy resistance, corrosion resistance and wear resistance is obtained.
Example 2:
as shown in fig. 2, the energy-and corrosion-resistant heat-generating substrate for a thermal head according to the present example includes an insulating substrate 1, and a ground coat layer 2 made of an amorphous glass material is provided on a surface portion of the insulating substrate 1. A common electrode and an individual electrode 3 are provided on the surface of the ground coat layer 2, a heating resistor 4 is disposed between the common electrode and the individual electrode 3 in the main printing direction as a heating element for generating joule heat, one end of the common electrode is connected to the heating resistor 4 in the sub-printing direction, and the other end thereof is connected to a power supply; one end of the individual electrode is connected with the heating resistor body 4 along the secondary printing direction, in order to protect the heating substrate, a protective layer 5 is covered on the surfaces of the heating resistor body 4, the common electrode and the individual electrode 3, the protective layer 5 is shown in table 3, a sample 5 is selected, and the protective layer is composed of an insulating glass glaze 5a with a transfer point of 683 ℃ and a softening point of 812 ℃, a second protective layer composed of an insulating glass glaze 5b and a silicon carbide ceramic protective layer formed by adopting a thin film process;
the high-softening-point glass glaze 5a is partially diffused into the heating resistor body during sintering, the glass softening point temperature of the heating resistor body is improved, the energy resistance characteristic of the heating resistor body is enhanced, the glass protective layer 5b has good fluidity during sintering, the insulating glass glaze 5 has good surface smoothness after sintering, the compactness of the surface of the high-softening-point glass glaze 5a is improved, the corrosion resistance of a product is further improved, the silicon carbide ceramic layer strengthens the wear resistance of the thermal print head substrate, and the thermal print head substrate with energy resistance, corrosion resistance and wear resistance is obtained.
Example 3:
as shown in fig. 3, the energy-and corrosion-resistant heat-generating substrate for a thermal head according to the present example includes an insulating substrate 1, and a ground coat layer 2 made of an amorphous glass material is provided on a surface portion of the insulating substrate 1. A common electrode and an individual electrode 3 are provided on the surface of the ground coat layer 2, a heating resistor 4 is disposed between the common electrode and the individual electrode 3 in the main printing direction as a heating element for generating joule heat, one end of the common electrode is connected to the heating resistor 4 in the sub-printing direction, and the other end thereof is connected to a power supply; one end of the individual electrode is connected with the heating resistor body 4 along the secondary printing direction, in order to protect the heating substrate, a protective layer 5 is covered on the surfaces of the heating resistor body 4, the common electrode and the individual electrode 3, the protective layer 5 is shown in table 3, and the protective layer 5 is composed of a first protective layer formed by insulating glass glaze 5a with a transfer point of 683 ℃ and a softening point of 812 ℃, a second protective layer formed by conductive glass glaze 5b with a resistivity of 10 omega m and a silicon carbide ceramic protective layer formed by adopting a thin film process;
in the embodiment, the high-softening-point glass glaze 5a is partially diffused into the heating resistor during sintering, so that the glass softening point temperature of the heating resistor is increased, the energy resistance characteristic of the heating resistor is enhanced, the surface potential of the substrate is reduced by the conductive glass glaze protective layer 5b, the electrochemical corrosion of the wear-resistant protective layer under high temperature and high humidity is reduced, the corrosion action of the high-temperature and high-humidity environment on the electrode is reduced, the corrosion resistance of the product is improved, the wear resistance of the thermal printing head substrate is strengthened by the silicon carbide ceramic layer, and the thermal printing head substrate with energy resistance, corrosion resistance and wear resistance is obtained.
The invention can also adopt other combination modes, for example, the high-softening-point or high-transfer-point glass glaze is adopted as the first protective layer, the low-softening-point or low-transfer-point glass glaze is adopted as the second protective layer and the third protective layer, and the silicon carbide ceramic protective layer formed by adopting the film process jointly forms the protective layer, so as to obtain the energy-resistant, corrosion-resistant and wear-resistant thermal printing head substrate.
Claims (8)
1. A heat-sensitive printing head heating substrate resistant to energy, corrosion and abrasion is provided with an insulating substrate, a ground coat layer made of amorphous glass materials is arranged on the surface of the insulating substrate, a common electrode and an individual electrode are arranged on the surface of the ground coat layer, a heating resistor body is arranged between the common electrode and the individual electrode, one end of the common electrode is connected with the heating resistor body, and the other end of the common electrode is connected with a power supply; one end of each individual electrode is connected with the heating resistor, and the other end of each individual electrode is connected with the bonding pad; the protective layer is arranged on the surfaces of the heating resistor body, the individual electrodes and the common electrode and is characterized in that the protective layer comprises a first protective layer covering the surface of the heating resistor body, and the first protective layer is a glass glaze layer with a transfer point temperature range of 600-870 ℃ or a glass glaze layer with a softening point temperature range of 700-725 ℃.
2. The heat-generating substrate for a thermal print head, which is energy-resistant, corrosion-resistant and wear-resistant, according to claim 1, wherein the first protective layer comprises the following components in oxide state: SiO 2249.4-56.8 mol% of Al2O313.7 mol% -26.7 mol% of CaO, 3.5 mol% -13.8 mol% of CaO, 1.5 mol% -5.9 mol% of BaO, 4.8 mol% -17.7 mol% of PbO, ZrO2The content is 1.2 mol% -5.0 mol%.
3. The heat-generating substrate for a thermal print head of claim 1, wherein a second protective layer is laminated on the outer side of the first protective layer, and the second protective layer is made of insulating glass glaze or conductive glass glaze.
4. The heat-generating substrate for a thermal print head, according to claim 3, wherein the second protective layer has a lower transfer point or softening point than the first protective layer.
5. The heat-generating substrate for a thermal print head according to claim 3, wherein the second protective layer has a resistivity in the range of 0.01 Ω -10k Ω -m when the second protective layer is a conductive glaze layer.
6. The heat-generating substrate for the thermal print head with the characteristics of energy resistance, corrosion resistance and wear resistance as claimed in claim 1, wherein the protective layer is further provided with a thin film ceramic wear-resistant layer, and the thin film ceramic wear-resistant protective layer is composed of one of silicon carbide, sialon or silicon nitride, or 2 composite thin film ceramic layers of silicon carbide, sialon or silicon nitride.
7. The heat-generating substrate for a thermal print head according to claim 2, wherein the composition of the insulating glass glaze comprises SiO in oxide state and has a transition temperature of 600-725 ℃ or a softening temperature of 700-870 ℃249.4-54.5 mol% of Al2O317.7 mol% -26.7 mol% of CaO, 3.5 mol% -10.5 mol% of CaO, 1.5 mol% -5.0 mol% of BaO, 8.5 mol% -17.7 mol% of PbO, ZrO2The content is 1.2 mol% -3.8 mol%.
8. The heat-generating substrate for a thermal print head according to claim 2, wherein the composition of the insulating glass glaze comprises SiO in oxide state and has a transition temperature of 600-725 ℃ or a softening temperature of 700-870 ℃2The content of Al is 52.5mol percent to 54.5mol percent2O317.7 mol% -22.5 mol% of CaO, 6.5 mol% -10.5 mol% of CaO, 2.5 mol% -5.0 mol% of BaO, 8.5 mol% -13.5 mol% of PbO, ZrO2The content is 2.5mol percent to 3.8mol percent.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110753758.2A CN114379238B (en) | 2021-07-02 | 2021-07-02 | Energy-resistant, corrosion-resistant and wear-resistant thermosensitive printing head heating substrate |
| JP2023562756A JP2024517390A (en) | 2021-07-02 | 2022-06-28 | Energy-resistant, corrosion-resistant, wear-resistant thermal printhead heating substrate |
| PCT/CN2022/101782 WO2023274202A1 (en) | 2021-07-02 | 2022-06-28 | Energy-resistant, corrosion-resistant and abrasion-resistant heat-generating substrate of thermal print head |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110753758.2A CN114379238B (en) | 2021-07-02 | 2021-07-02 | Energy-resistant, corrosion-resistant and wear-resistant thermosensitive printing head heating substrate |
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| Publication Number | Publication Date |
|---|---|
| CN114379238A true CN114379238A (en) | 2022-04-22 |
| CN114379238B CN114379238B (en) | 2023-02-28 |
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| CN202110753758.2A Active CN114379238B (en) | 2021-07-02 | 2021-07-02 | Energy-resistant, corrosion-resistant and wear-resistant thermosensitive printing head heating substrate |
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| JP (1) | JP2024517390A (en) |
| CN (1) | CN114379238B (en) |
| WO (1) | WO2023274202A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023274202A1 (en) * | 2021-07-02 | 2023-01-05 | 山东华菱电子股份有限公司 | Energy-resistant, corrosion-resistant and abrasion-resistant heat-generating substrate of thermal print head |
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| JP3713274B2 (en) * | 1994-09-13 | 2005-11-09 | 株式会社東芝 | Thermal head and manufacturing method thereof |
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| CN114368224B (en) * | 2021-07-02 | 2023-03-21 | 山东华菱电子股份有限公司 | Energy-resistant and corrosion-resistant heating substrate for thermal printing head |
| CN114379238B (en) * | 2021-07-02 | 2023-02-28 | 山东华菱电子股份有限公司 | Energy-resistant, corrosion-resistant and wear-resistant thermosensitive printing head heating substrate |
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2021
- 2021-07-02 CN CN202110753758.2A patent/CN114379238B/en active Active
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2022
- 2022-06-28 WO PCT/CN2022/101782 patent/WO2023274202A1/en active Application Filing
- 2022-06-28 JP JP2023562756A patent/JP2024517390A/en active Pending
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023274202A1 (en) * | 2021-07-02 | 2023-01-05 | 山东华菱电子股份有限公司 | Energy-resistant, corrosion-resistant and abrasion-resistant heat-generating substrate of thermal print head |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2023274202A1 (en) | 2023-01-05 |
| JP2024517390A (en) | 2024-04-22 |
| CN114379238B (en) | 2023-02-28 |
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