A method for making a lithographic printing plate

A technology of lithographic printing and printing plate, which is applied in the direction of photo-plate-making process of pattern surface, photo-plate-making process exposure device, micro-lithography exposure equipment, etc., which can solve the problems of low efficiency, time-consuming and labor-intensive production process of printing plate

Pending Publication Date: 2020-07-17
易客发有限公司
View PDF53 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These actions are time-consuming and labor-intensive, making the production process of printing plates less efficient

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
  • A method for making a lithographic printing plate
  • A method for making a lithographic printing plate
  • A method for making a lithographic printing plate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0139] All materials used in the following examples were readily purchased from standard sources such as Sigma-Aldrich (Belgium) and Acros (Belgium) unless otherwise indicated.

[0140] Preparation of aluminum carrier S-01

[0141] Aluminum foils of 0.3 mm thickness were degreased by spraying with an aqueous solution containing 26 g / l NaOH for 2 s at 65 °C and rinsed with demineralized water for 1.5 s. Then at a temperature of 37°C and about 100 A / dm 2 At a current density of 15 g / l HCl, 15 g / l SO 4 2- ions and 5 g / l Al 3+ The foil was electrochemically grained within 10 seconds using an alternating current in an aqueous solution of ions. The foils were then descaled by etching with an aqueous solution containing 5.5 g / l NaOH for 2 seconds at 36°C and rinsed with demineralized water for 2 seconds. followed by a temperature of 50°C and 17 A / dm 2 The foil was anodized for 15 seconds in an aqueous solution containing 145 g / l sulfuric acid at a current density of 15 s, then ...

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
wavelengthaaaaaaaaaa
wavelengthaaaaaaaaaa
surface roughnessaaaaaaaaaa
Login to view more

Abstract

A method for making a negative-working lithographic printing plate is disclosed which includes subjecting an image-wise exposed, developed and dried plate precursor to UV LED radiation.

Description

[0001] technical field [0002] The present invention relates to a new method of manufacturing lithographic printing plates. Background technique [0003] Lithographic printing usually involves the use of so-called printing masters, such as printing plates mounted on the cylinders of a rotary printing press. The master bears a lithographic image on its surface, and the print is obtained by applying ink to the image, followed by transfer of the ink from the master to a printing substrate, usually paper. In conventional lithography, ink is supplied with an ink fountain solution (also known as fountain solution) to areas composed of oleophilic (or hydrophobic, that accepts ink but repels water) and hydrophilic (or oleophobic, that accepts water and repels water) areas. A lithographic image composed of areas of ink). In so-called offset printing, the lithographic image consists of ink-accepting and ink-repelling (ink-repelling) areas, and during offset printing only ink is s...

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): G03F7/40G03F7/20
CPCG03F7/2024G03F7/40
Inventor P.亨德里克斯K.希姆斯舒特S.韦布吕格
Owner 易客发有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap