Unlock instant, AI-driven research and patent intelligence for your innovation.

Hydrophilic member

A hydrophilic and component technology, applied in coatings, layered products, metal layered products, etc., can solve the problems of reduced anti-fog effect, easy attachment of fine water droplets on the surface, and slow recovery of hydrophilicity

Inactive Publication Date: 2004-06-30
NIPPON SHEET GLASS CO LTD
View PDF4 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the recovery of hydrophilicity after washing is slow, and fine water droplets are easy to adhere to the surface, reducing the anti-fog effect

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Hydrophilic member
  • Hydrophilic member
  • Hydrophilic member

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 6

[0062] In Example 6, a mirror having the same composition as in Example 3 was formed on the surface of a glass plate with silver pasted on the inside. Even if the surface of the mirror is blown with air, there is no fogging at all. In addition, the contact angle with water immediately after washing is 10° or less, and the hydrophilicity is maintained for a long time. Therefore, the mirror of Example 6 has high hydrophilicity and good hydrophilic retention.

[0063] As described above, according to the first characteristic configuration of the hydrophilic member of the present invention, its contact angle with water is small, and better long-term stability of hydrophilicity can be obtained.

[0064] According to the second characteristic configuration of the above-mentioned hydrophilic member of the present invention, it is possible to form a polycrystalline thin film having a suitable surface unevenness while exerting the effect of the first characteristic configuration.

[0...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A hydrophilic member comprising a glass plate (1) as a substrate, a tin(II)oxide (SnO2) film (2) formed on the glass plate and a silicon oxide (SiO2) film (3) formed on the tin(II)oxide (SnO2) film (2) as an overcoat layer thereof, wherein the glass plate (1) is made from a soda glass containing SiO2 as the main component thereof, the tin(II)oxide (SnO2) film (2) is formed, for example, by the CVD method and has a thickness of 10 to 800 nm and an average surface roughness (Ra) of 0.5 to 25 nm and the silicon oxide (SiO2) film (3) is formed by using sputtering deposition and has a thickness of 0.1 to 100 nm and an average surface roughness (Ra) of 0.5 to 25 nm. The average surface roughness (Ra) of the silicon oxide (SiO2) film (3) is the same as that of the tin(II)oxide (SnO2) film (2), since the silicon oxide (SiO2) film (3) is formed on the tin(II)oxide (SnO2) film (2), which results in that the irregularity of the tin(II)oxide (SnO2) film (2) is transferred, as it is, to the silicon oxide (SiO2) film (3). The hydrophilic properties of the member has advantages in that, after washing operation, it can be recovered in an extremely short time and also the hydrophilic properties thus recovered are durable for a long period of time.

Description

technical field [0001] The present invention relates to a hydrophilic member which is excellent in hydrophilicity, especially hydrophilicity recovery. Background technique [0002] As a prior art for making the surface of a base material such as glass hydrophilic and having anti-fogging properties, there are known Japanese Patent Laid-Open No. 9-278431, Japanese Patent Laid-Open No. 9-295363, Japanese Patent Laid-Open No. 10-36144, Kaihei No. 10-231146. [0003] Japanese Patent Application Laid-Open No. 9-278431 discloses that a surface treatment agent containing phosphoric acid or its salt, a soluble aluminum compound, a water-soluble silicate, a surfactant and a solvent is coated on the surface of a substrate, and at the same time, its affinity is The average surface roughness of the water film is 0.5-500 nm. [0004] Japanese Patent Laying-Open No. 9-295363 discloses that a titanium oxide film and a tin oxide film are formed on the surface of a base material, and the av...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): B32B3/30B01J35/02B32B9/00B32B17/06C03C17/34C04B41/89
CPCC03C17/3417B32B17/06B32B9/04C09D1/00
Inventor 藤本英史高桥一雄武田宏二田中启介荻野悦男森健次平田昌宏
Owner NIPPON SHEET GLASS CO LTD