Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Aluminum alloy sheet for lithographic printing plate

A lithographic printing plate, aluminum alloy plate technology, applied in printing, printing process, printing foil, etc., can solve the problems that cannot fully meet the high strength, achieve excellent tightness and water retention, improve clarity and printing resistance, Excellent strength and heat softening resistance

Inactive Publication Date: 2005-02-02
SUMITOMO LIGHT METAL INDS LTD +1
View PDF8 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] However, the above-mentioned aluminum alloy plate for a support cannot fully satisfy the formation of uniform surface roughening dents, high strength,

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Melting and casting the aluminum alloy with the composition shown in Table 1, cutting both sides of the obtained ingot, forming it into a thickness of 500mm, a width of 1000mm, and a length of 3500mm, after homogenizing at a temperature of 450°C, heating to a temperature of 400°C, Hot rolling was started, cold rolling was performed after hot rolling, and then finish cold rolling was performed to obtain a sheet material with a thickness of 0.30 mm.

[0032] For the obtained aluminum alloy plate, a tensile test was carried out at normal temperature to measure the tensile strength. At the same time, as an index of heat softening resistance, after heating the aluminum plate at a temperature of 280° C. for 8 minutes, the tensile test was carried out. In the tensile test, the 0.2% yield strength was measured, and the overheat resistance was evaluated as the strength of the support. In addition, the measurement of the yield strength was carried out along the direction (L direc...

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

PropertyMeasurementUnit
yield strengthaaaaaaaaaa
Login to View More

Abstract

The present invention provides an aluminum alloy sheet for a lithographic printing plate which allows pits to be uniformly formed by electrochemical roughening, and excels in strength and heat softening resistance. The aluminum alloy sheet for a lithographic printing plate includes 0.1-0.3% of Mg, more than 0.05%, but 0.5% or less of Zn, 0.2-0.6% of Fe, 0.03-0.15% of Si, 0.02% or less of Cu, and 0.003-0.05% of Ti, the remainder being Al and impurities. The aluminum alloy sheet may include more than 0.05%, but 0.3% or less of Mn.

Description

technical field [0001] The present invention relates to an aluminum alloy plate for a lithographic printing plate, and more particularly to an aluminum alloy plate for a lithographic printing plate that can uniformly roughen the surface by electrochemical corrosion treatment and has excellent strength and heat softening resistance. Background technique [0002] An aluminum alloy plate is generally used as a support for lithographic printing plates (including offset printing plates), and the support is subjected to a surface roughening treatment from the viewpoint of improving the tightness of the photosensitive film and improving the water retention of the non-image area. [0003] As a method of surface roughening treatment, in the prior art, mechanical surface roughening such as ball grinding, brush grinding, and wire grinding is used. In the chemical method, JIS A1100 (aluminum purity of 99.0%), A3003 (aluminum purity of 98.0 to 98.5%) and the like have been used so far as...

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
Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/00B41N1/08C22C21/06C22C21/10C22C21/18
CPCC22C21/06C22C21/10B41N1/083
Inventor 扇博史日比野淳
Owner SUMITOMO LIGHT METAL INDS LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com