Title:
ENERGY-RESISTANT, CORROSION-RESISTANT AND ABRASION-RESISTANT HEAT-GENERATING SUBSTRATE OF THERMAL PRINT HEAD
Document Type and Number:
WIPO Patent Application WO/2023/274202
Kind Code:
A1
Abstract:
An energy-resistant, corrosion-resistant and abrasion-resistant heat-generating substrate of a thermal print head. The heat-generating substrate is provided with an insulating substrate (1), wherein a ground glaze layer (2), which is made of an amorphous glass material, is arranged on a surface portion of the insulating substrate (1); a common electrode and an individual electrode (3) are arranged on the surface of the ground glaze layer (2); a heat-generating resistor body (4) is configured between the common electrode and the individual electrode (3); the surface of the heat-generating resistor body (4), the surface of the common electrode and the surface of the individual electrode (3) are provided with a protective layer (5); and the protective layer (5) includes a first protective layer (5a) that covers the surface of the heat-generating resistor body (4), the first protective layer (5a) being a glass glaze layer having a transition point temperature ranging from 600°C to 725°C or a glass glaze layer having a softening point temperature ranging from 700°C to 870°C. The heat-generating substrate of a thermal print head has the characteristics of requiring a simple production method and being low cost, can greatly reduce the amount of damage to a heat-generating resistor body that is caused by high word-printing energy, and can improve the corrosion resistance capability of the print head in a high-temperature and high-humidity environment and the abrasion resistance performance thereof in a harsh environment, thereby significantly improving the product reliability.
Inventors:
WANG JIGANG (CN)
CHEN WENZHUO (CN)
XU JIQING (CN)
LENG ZHENGCHAO (CN)
CHEN WENZHUO (CN)
XU JIQING (CN)
LENG ZHENGCHAO (CN)
Application Number:
PCT/CN2022/101782
Publication Date:
January 05, 2023
Filing Date:
June 28, 2022
Export Citation:
Assignee:
SHANDONG HUALING ELECTRONICS CO LTD (CN)
International Classes:
B41J2/335
Foreign References:
| CN114379238A | 2022-04-22 | |||
| CN114368224A | 2022-04-19 | |||
| CN1968820A | 2007-05-23 | |||
| CN1163011A | 1997-10-22 | |||
| CN206884473U | 2018-01-16 | |||
| CN101784495A | 2010-07-21 | |||
| CN102725145A | 2012-10-10 | |||
| CN101934637A | 2011-01-05 | |||
| JP2008080786A | 2008-04-10 | |||
| US5066960A | 1991-11-19 | |||
| JP2000229435A | 2000-08-22 |
Attorney, Agent or Firm:
BEYOND ATTORNEYS AT LAW (CN)
Download PDF: